openstack/nova
Code Issues Proposed changes
nova/nova/tests/unit/virt/libvirt/test_driver.py
Konstantinos Samaras-Tsakiris ca543438e1 Hide hypervisor id on windows guests 
Blueprints hide-hypervisor-id-flavor-extra-spec [1] and
add-kvm-hidden-feature [2] allow hiding KVM's signature for guests,
which is necessary for Nvidia drivers to work in VMs with passthrough
GPUs.  While this works well for linux guests on KVM, it doesn't work
for Windows guests.

For them, KVM emulates some HyperV features. With the
current implementation, KVM's signature is hidden, but HyperV's is not,
and Nvidia drivers don't work in Windows VMs.

This change generates an extra element in the libvirt xml for Windows
guests on KVM which obfuscates HyperV's signature too, controlled by the
existing image and flavor parameters (img_hide_hypervisor_id and
hide_hypervisor_id correspondingly). The extra xml element is
  <vendor_id state='on' value='1234567890ab'/>
in features/hyperv.

[1] https://blueprints.launchpad.net/nova/+spec/hide-hypervisor-id-flavor-extra-spec
[2] https://blueprints.launchpad.net/nova/+spec/add-kvm-hidden-feature

Change-Id: Iaaeae9281301f14f4ae9b43f4a06de58b699fd68
Closes-Bug: 1779845
2019-06-04 00:51:08 +00:00

23172 lines
1.0 MiB
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# Copyright 2010 OpenStack Foundation
# Copyright 2012 University Of Minho
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import binascii
from collections import deque
from collections import OrderedDict
import contextlib
import copy
import datetime
import errno
import glob
import io
import os
import random
import re
import shutil
import signal
import threading
import time
import unittest
from castellan import key_manager
import ddt
import eventlet
from eventlet import greenthread
import fixtures
from lxml import etree
import mock
from os_brick import encryptors
from os_brick import exception as brick_exception
from os_brick.initiator import connector
import os_resource_classes as orc
import os_vif
from oslo_concurrency import lockutils
from oslo_concurrency import processutils
from oslo_config import cfg
from oslo_serialization import jsonutils
from oslo_service import loopingcall
from oslo_utils import fileutils
from oslo_utils import fixture as utils_fixture
from oslo_utils.fixture import uuidsentinel as uuids
from oslo_utils import units
from oslo_utils import uuidutils
from oslo_utils import versionutils
import six
from six.moves import range
from nova.api.metadata import base as instance_metadata
from nova.compute import manager
from nova.compute import power_state
from nova.compute import provider_tree
from nova.compute import task_states
from nova.compute import utils as compute_utils
from nova.compute import vm_states
import nova.conf
from nova import context
from nova.db import api as db
from nova import exception
from nova.network import model as network_model
from nova import objects
from nova.objects import block_device as block_device_obj
from nova.objects import fields
from nova.objects import migrate_data as migrate_data_obj
from nova.objects import virtual_interface as obj_vif
from nova.pci import manager as pci_manager
from nova.pci import utils as pci_utils
import nova.privsep.fs
import nova.privsep.libvirt
from nova import test
from nova.tests.unit import fake_block_device
from nova.tests.unit import fake_diagnostics
from nova.tests.unit import fake_flavor
from nova.tests.unit import fake_instance
from nova.tests.unit import fake_network
import nova.tests.unit.image.fake
from nova.tests.unit import matchers
from nova.tests.unit.objects import test_diagnostics
from nova.tests.unit.objects import test_pci_device
from nova.tests.unit.objects import test_vcpu_model
from nova.tests.unit.virt.libvirt import fake_imagebackend
from nova.tests.unit.virt.libvirt import fake_libvirt_utils
from nova.tests.unit.virt.libvirt import fakelibvirt
from nova import utils
from nova import version
from nova.virt import block_device as driver_block_device
from nova.virt import driver
from nova.virt import fake
from nova.virt import firewall as base_firewall
from nova.virt import hardware
from nova.virt.image import model as imgmodel
from nova.virt import images
from nova.virt.libvirt import blockinfo
from nova.virt.libvirt import config as vconfig
from nova.virt.libvirt import driver as libvirt_driver
from nova.virt.libvirt import firewall
from nova.virt.libvirt import guest as libvirt_guest
from nova.virt.libvirt import host
from nova.virt.libvirt import imagebackend
from nova.virt.libvirt import imagecache
from nova.virt.libvirt import migration as libvirt_migrate
from nova.virt.libvirt.storage import dmcrypt
from nova.virt.libvirt.storage import lvm
from nova.virt.libvirt.storage import rbd_utils
from nova.virt.libvirt import utils as libvirt_utils
from nova.virt.libvirt.volume import volume as volume_drivers
CONF = nova.conf.CONF
_fake_network_info = fake_network.fake_get_instance_nw_info
_fake_NodeDevXml = \
{"pci_0000_04_00_3": """
<device>
<name>pci_0000_04_00_3</name>
<parent>pci_0000_00_01_1</parent>
<driver>
<name>igb</name>
</driver>
<capability type='pci'>
<domain>0</domain>
<bus>4</bus>
<slot>0</slot>
<function>3</function>
<product id='0x1521'>I350 Gigabit Network Connection</product>
<vendor id='0x8086'>Intel Corporation</vendor>
<capability type='virt_functions'>
<address domain='0x0000' bus='0x04' slot='0x10' function='0x3'/>
<address domain='0x0000' bus='0x04' slot='0x10' function='0x7'/>
<address domain='0x0000' bus='0x04' slot='0x11' function='0x3'/>
<address domain='0x0000' bus='0x04' slot='0x11' function='0x7'/>
</capability>
</capability>
</device>""",
"pci_0000_04_10_7": """
<device>
<name>pci_0000_04_10_7</name>
<parent>pci_0000_00_01_1</parent>
<driver>
<name>igbvf</name>
</driver>
<capability type='pci'>
<domain>0</domain>
<bus>4</bus>
<slot>16</slot>
<function>7</function>
<product id='0x1520'>I350 Ethernet Controller Virtual Function
</product>
<vendor id='0x8086'>Intel Corporation</vendor>
<capability type='phys_function'>
<address domain='0x0000' bus='0x04' slot='0x00' function='0x3'/>
</capability>
<capability type='virt_functions'>
</capability>
</capability>
</device>""",
"pci_0000_04_11_7": """
<device>
<name>pci_0000_04_11_7</name>
<parent>pci_0000_00_01_1</parent>
<driver>
<name>igbvf</name>
</driver>
<capability type='pci'>
<domain>0</domain>
<bus>4</bus>
<slot>17</slot>
<function>7</function>
<product id='0x1520'>I350 Ethernet Controller Virtual Function
</product>
<vendor id='0x8086'>Intel Corporation</vendor>
<numa node='0'/>
<capability type='phys_function'>
<address domain='0x0000' bus='0x04' slot='0x00' function='0x3'/>
</capability>
<capability type='virt_functions'>
</capability>
</capability>
</device>""",
"pci_0000_04_00_1": """
<device>
<name>pci_0000_04_00_1</name>
<path>/sys/devices/pci0000:00/0000:00:02.0/0000:04:00.1</path>
<parent>pci_0000_00_02_0</parent>
<driver>
<name>mlx5_core</name>
</driver>
<capability type='pci'>
<domain>0</domain>
<bus>4</bus>
<slot>0</slot>
<function>1</function>
<product id='0x1013'>MT27700 Family [ConnectX-4]</product>
<vendor id='0x15b3'>Mellanox Technologies</vendor>
<iommuGroup number='15'>
<address domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
<address domain='0x0000' bus='0x03' slot='0x00' function='0x1'/>
</iommuGroup>
<numa node='0'/>
<pci-express>
<link validity='cap' port='0' speed='8' width='16'/>
<link validity='sta' speed='8' width='16'/>
</pci-express>
</capability>
</device>""",
# libvirt >= 1.3.0 nodedev-dumpxml
"pci_0000_03_00_0": """
<device>
<name>pci_0000_03_00_0</name>
<path>/sys/devices/pci0000:00/0000:00:02.0/0000:03:00.0</path>
<parent>pci_0000_00_02_0</parent>
<driver>
<name>mlx5_core</name>
</driver>
<capability type='pci'>
<domain>0</domain>
<bus>3</bus>
<slot>0</slot>
<function>0</function>
<product id='0x1013'>MT27700 Family [ConnectX-4]</product>
<vendor id='0x15b3'>Mellanox Technologies</vendor>
<capability type='virt_functions' maxCount='16'>
<address domain='0x0000' bus='0x03' slot='0x00' function='0x2'/>
<address domain='0x0000' bus='0x03' slot='0x00' function='0x3'/>
<address domain='0x0000' bus='0x03' slot='0x00' function='0x4'/>
<address domain='0x0000' bus='0x03' slot='0x00' function='0x5'/>
</capability>
<iommuGroup number='15'>
<address domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
<address domain='0x0000' bus='0x03' slot='0x00' function='0x1'/>
</iommuGroup>
<numa node='0'/>
<pci-express>
<link validity='cap' port='0' speed='8' width='16'/>
<link validity='sta' speed='8' width='16'/>
</pci-express>
</capability>
</device>""",
"pci_0000_03_00_1": """
<device>
<name>pci_0000_03_00_1</name>
<path>/sys/devices/pci0000:00/0000:00:02.0/0000:03:00.1</path>
<parent>pci_0000_00_02_0</parent>
<driver>
<name>mlx5_core</name>
</driver>
<capability type='pci'>
<domain>0</domain>
<bus>3</bus>
<slot>0</slot>
<function>1</function>
<product id='0x1013'>MT27700 Family [ConnectX-4]</product>
<vendor id='0x15b3'>Mellanox Technologies</vendor>
<capability type='virt_functions' maxCount='16'/>
<iommuGroup number='15'>
<address domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
<address domain='0x0000' bus='0x03' slot='0x00' function='0x1'/>
</iommuGroup>
<numa node='0'/>
<pci-express>
<link validity='cap' port='0' speed='8' width='16'/>
<link validity='sta' speed='8' width='16'/>
</pci-express>
</capability>
</device>""",
"net_enp2s2_02_9a_a1_37_be_54": """
<device>
<name>net_enp2s2_02_9a_a1_37_be_54</name>
<path>/sys/devices/pci0000:00/0000:00:02.0/0000:02:02.0/net/enp2s2</path>
<parent>pci_0000_04_11_7</parent>
<capability type='net'>
<interface>enp2s2</interface>
<address>02:9a:a1:37:be:54</address>
<link state='down'/>
<feature name='rx'/>
<feature name='tx'/>
<feature name='sg'/>
<feature name='tso'/>
<feature name='gso'/>
<feature name='gro'/>
<feature name='rxvlan'/>
<feature name='txvlan'/>
<capability type='80203'/>
</capability>
</device>""",
"pci_0000_06_00_0": """
<device>
<name>pci_0000_06_00_0</name>
<path>/sys/devices/pci0000:00/0000:00:06.0</path>
<parent></parent>
<driver>
<name>nvidia</name>
</driver>
<capability type="pci">
<domain>0</domain>
<bus>10</bus>
<slot>1</slot>
<function>5</function>
<product id="0x0FFE">GRID M60-0B</product>
<vendor id="0x10DE">Nvidia</vendor>
<numa node="8"/>
<capability type='mdev_types'>
<type id='nvidia-11'>
<name>GRID M60-0B</name>
<deviceAPI>vfio-pci</deviceAPI>
<availableInstances>16</availableInstances>
</type>
</capability>
</capability>
</device>""",
"mdev_4b20d080_1b54_4048_85b3_a6a62d165c01": """
<device>
<name>mdev_4b20d080_1b54_4048_85b3_a6a62d165c01</name>
<path>/sys/devices/pci0000:00/0000:00:02.0/4b20d080-1b54-4048-85b3-a6a62d165c01</path>
<parent>pci_0000_00_02_0</parent>
<driver>
<name>vfio_mdev</name>
</driver>
<capability type='mdev'>
<type id='nvidia-11'/>
<iommuGroup number='12'/>
</capability>
</device>
""",
}
_fake_cpu_info = {
"arch": "test_arch",
"model": "test_model",
"vendor": "test_vendor",
"topology": {
"sockets": 1,
"cores": 8,
"threads": 16
},
"features": ["feature1", "feature2"]
}
eph_default_ext = utils.get_hash_str(nova.privsep.fs._DEFAULT_FILE_SYSTEM)[:7]
_fake_qemu64_cpu_feature = """
<cpu mode='custom' match='exact'>
<model fallback='forbid'>qemu64</model>
<feature policy='require' name='svm'/>
<feature policy='require' name='lm'/>
<feature policy='require' name='nx'/>
<feature policy='require' name='syscall'/>
<feature policy='require' name='cx16'/>
<feature policy='require' name='pni'/>
<feature policy='require' name='sse2'/>
<feature policy='require' name='sse'/>
<feature policy='require' name='fxsr'/>
<feature policy='require' name='mmx'/>
<feature policy='require' name='clflush'/>
<feature policy='require' name='pse36'/>
<feature policy='require' name='pat'/>
<feature policy='require' name='cmov'/>
<feature policy='require' name='mca'/>
<feature policy='require' name='pge'/>
<feature policy='require' name='mtrr'/>
<feature policy='require' name='sep'/>
<feature policy='require' name='apic'/>
<feature policy='require' name='cx8'/>
<feature policy='require' name='mce'/>
<feature policy='require' name='pae'/>
<feature policy='require' name='msr'/>
<feature policy='require' name='tsc'/>
<feature policy='require' name='pse'/>
<feature policy='require' name='de'/>
<feature policy='require' name='fpu'/>
</cpu>
"""
_fake_broadwell_cpu_feature = """
<cpu mode='custom' match='exact'>
<model fallback='forbid'>Broadwell-noTSX</model>
<vendor>Intel</vendor>
<feature policy='require' name='smap'/>
<feature policy='require' name='adx'/>
<feature policy='require' name='rdseed'/>
<feature policy='require' name='invpcid'/>
<feature policy='require' name='erms'/>
<feature policy='require' name='bmi2'/>
<feature policy='require' name='smep'/>
<feature policy='require' name='avx2'/>
<feature policy='require' name='bmi1'/>
<feature policy='require' name='fsgsbase'/>
<feature policy='require' name='3dnowprefetch'/>
<feature policy='require' name='lahf_lm'/>
<feature policy='require' name='lm'/>
<feature policy='require' name='rdtscp'/>
<feature policy='require' name='nx'/>
<feature policy='require' name='syscall'/>
<feature policy='require' name='avx'/>
<feature policy='require' name='xsave'/>
<feature policy='require' name='aes'/>
<feature policy='require' name='tsc-deadline'/>
<feature policy='require' name='popcnt'/>
<feature policy='require' name='movbe'/>
<feature policy='require' name='x2apic'/>
<feature policy='require' name='sse4.2'/>
<feature policy='require' name='sse4.1'/>
<feature policy='require' name='pcid'/>
<feature policy='require' name='cx16'/>
<feature policy='require' name='fma'/>
<feature policy='require' name='ssse3'/>
<feature policy='require' name='pclmuldq'/>
<feature policy='require' name='pni'/>
<feature policy='require' name='sse2'/>
<feature policy='require' name='sse'/>
<feature policy='require' name='fxsr'/>
<feature policy='require' name='mmx'/>
<feature policy='require' name='clflush'/>
<feature policy='require' name='pse36'/>
<feature policy='require' name='pat'/>
<feature policy='require' name='cmov'/>
<feature policy='require' name='mca'/>
<feature policy='require' name='pge'/>
<feature policy='require' name='mtrr'/>
<feature policy='require' name='sep'/>
<feature policy='require' name='apic'/>
<feature policy='require' name='cx8'/>
<feature policy='require' name='mce'/>
<feature policy='require' name='pae'/>
<feature policy='require' name='msr'/>
<feature policy='require' name='tsc'/>
<feature policy='require' name='pse'/>
<feature policy='require' name='de'/>
<feature policy='require' name='fpu'/>
</cpu>
"""
def eph_name(size):
return ('ephemeral_%(size)s_%(ext)s' %
{'size': size, 'ext': eph_default_ext})
def fake_disk_info_byname(instance, type='qcow2'):
"""Return instance_disk_info corresponding accurately to the properties of
the given Instance object. The info is returned as an OrderedDict of
name->disk_info for each disk.
:param instance: The instance we're generating fake disk_info for.
:param type: libvirt's disk type.
:return: disk_info
:rtype: OrderedDict
"""
instance_dir = os.path.join(CONF.instances_path, instance.uuid)
def instance_path(name):
return os.path.join(instance_dir, name)
disk_info = OrderedDict()
# root disk
if (instance.image_ref is not None and
instance.image_ref != uuids.fake_volume_backed_image_ref):
cache_name = imagecache.get_cache_fname(instance.image_ref)
disk_info['disk'] = {
'type': type,
'path': instance_path('disk'),
'virt_disk_size': instance.flavor.root_gb * units.Gi,
'backing_file': cache_name,
'disk_size': instance.flavor.root_gb * units.Gi,
'over_committed_disk_size': 0}
swap_mb = instance.flavor.swap
if swap_mb > 0:
disk_info['disk.swap'] = {
'type': type,
'path': instance_path('disk.swap'),
'virt_disk_size': swap_mb * units.Mi,
'backing_file': 'swap_%s' % swap_mb,
'disk_size': swap_mb * units.Mi,
'over_committed_disk_size': 0}
eph_gb = instance.flavor.ephemeral_gb
if eph_gb > 0:
disk_info['disk.local'] = {
'type': type,
'path': instance_path('disk.local'),
'virt_disk_size': eph_gb * units.Gi,
'backing_file': eph_name(eph_gb),
'disk_size': eph_gb * units.Gi,
'over_committed_disk_size': 0}
if instance.config_drive:
disk_info['disk.config'] = {
'type': 'raw',
'path': instance_path('disk.config'),
'virt_disk_size': 1024,
'backing_file': '',
'disk_size': 1024,
'over_committed_disk_size': 0}
return disk_info
def fake_diagnostics_object(with_cpus=False, with_disks=False, with_nic=False):
diag_dict = {'config_drive': False,
'driver': 'libvirt',
'hypervisor': 'kvm',
'hypervisor_os': 'linux',
'memory_details': {'maximum': 2048, 'used': 1234},
'state': 'running',
'uptime': 10}
if with_cpus:
diag_dict['cpu_details'] = []
for id, t in enumerate([15340000000, 1640000000,
3040000000, 1420000000]):
diag_dict['cpu_details'].append({'id': id, 'time': t})
if with_disks:
diag_dict['disk_details'] = []
for i in range(2):
diag_dict['disk_details'].append(
{'read_bytes': 688640,
'read_requests': 169,
'write_bytes': 0,
'write_requests': 0,
'errors_count': 1})
if with_nic:
diag_dict['nic_details'] = [
{'mac_address': '52:54:00:a4:38:38',
'rx_drop': 0,
'rx_errors': 0,
'rx_octets': 4408,
'rx_packets': 82,
'tx_drop': 0,
'tx_errors': 0,
'tx_octets': 0,
'tx_packets': 0}]
return fake_diagnostics.fake_diagnostics_obj(**diag_dict)
def fake_disk_info_json(instance, type='qcow2'):
"""Return fake instance_disk_info corresponding accurately to the
properties of the given Instance object.
:param instance: The instance we're generating fake disk_info for.
:param type: libvirt's disk type.
:return: JSON representation of instance_disk_info for all disks.
:rtype: str
"""
disk_info = fake_disk_info_byname(instance, type)
return jsonutils.dumps(disk_info.values())
def get_injection_info(network_info=None, admin_pass=None, files=None):
return libvirt_driver.InjectionInfo(
network_info=network_info, admin_pass=admin_pass, files=files)
def _concurrency(signal, wait, done, target, is_block_dev=False):
signal.send()
wait.wait()
done.send()
class FakeVirtDomain(object):
def __init__(self, fake_xml=None, uuidstr=None, id=None, name=None,
info=None):
if uuidstr is None:
uuidstr = uuids.fake
self.uuidstr = uuidstr
self.id = id
self.domname = name
self._info = info or (
[power_state.RUNNING, 2048 * units.Mi,
1234 * units.Mi, None, None])
if fake_xml:
self._fake_dom_xml = fake_xml
else:
self._fake_dom_xml = """
<domain type='kvm'>
<name>testinstance1</name>
<devices>
<disk type='file'>
<source file='filename'/>
</disk>
</devices>
</domain>
"""
def name(self):
if self.domname is None:
return "fake-domain %s" % self
else:
return self.domname
def ID(self):
return self.id
def info(self):
return self._info
def create(self):
pass
def managedSave(self, *args):
pass
def createWithFlags(self, launch_flags):
pass
def XMLDesc(self, flags):
return self._fake_dom_xml
def UUIDString(self):
return self.uuidstr
def attachDeviceFlags(self, xml, flags):
pass
def attachDevice(self, xml):
pass
def detachDeviceFlags(self, xml, flags):
pass
def snapshotCreateXML(self, xml, flags):
pass
def blockCommit(self, disk, base, top, bandwidth=0, flags=0):
pass
def blockRebase(self, disk, base, bandwidth=0, flags=0):
pass
def blockJobInfo(self, path, flags):
pass
def blockJobAbort(self, path, flags):
pass
def resume(self):
pass
def destroy(self):
pass
def fsFreeze(self, disks=None, flags=0):
pass
def fsThaw(self, disks=None, flags=0):
pass
def isActive(self):
return True
def isPersistent(self):
return True
def undefine(self):
return True
class CacheConcurrencyTestCase(test.NoDBTestCase):
def setUp(self):
super(CacheConcurrencyTestCase, self).setUp()
self.flags(instances_path=self.useFixture(fixtures.TempDir()).path)
# utils.synchronized() will create the lock_path for us if it
# doesn't already exist. It will also delete it when it's done,
# which can cause race conditions with the multiple threads we
# use for tests. So, create the path here so utils.synchronized()
# won't delete it out from under one of the threads.
self.lock_path = os.path.join(CONF.instances_path, 'locks')
fileutils.ensure_tree(self.lock_path)
def fake_exists(fname):
basedir = os.path.join(CONF.instances_path,
CONF.image_cache_subdirectory_name)
if fname == basedir or fname == self.lock_path:
return True
return False
self.stub_out('os.path.exists', fake_exists)
self.stub_out('oslo_concurrency.processutils.execute',
lambda *a, **kw: None)
self.stub_out('nova.virt.disk.api.extend',
lambda image, size, use_cow=False: None)
def _fake_instance(self, uuid):
return objects.Instance(id=1, uuid=uuid)
def test_same_fname_concurrency(self):
# Ensures that the same fname cache runs at a sequentially.
uuid = uuids.fake
backend = imagebackend.Backend(False)
wait1 = eventlet.event.Event()
done1 = eventlet.event.Event()
sig1 = eventlet.event.Event()
thr1 = eventlet.spawn(backend.by_name(self._fake_instance(uuid),
'name').cache,
_concurrency, 'fname', None,
signal=sig1, wait=wait1, done=done1)
eventlet.sleep(0)
# Thread 1 should run before thread 2.
sig1.wait()
wait2 = eventlet.event.Event()
done2 = eventlet.event.Event()
sig2 = eventlet.event.Event()
thr2 = eventlet.spawn(backend.by_name(self._fake_instance(uuid),
'name').cache,
_concurrency, 'fname', None,
signal=sig2, wait=wait2, done=done2)
wait2.send()
eventlet.sleep(0)
try:
self.assertFalse(done2.ready())
finally:
wait1.send()
done1.wait()
eventlet.sleep(0)
self.assertTrue(done2.ready())
# Wait on greenthreads to assert they didn't raise exceptions
# during execution
thr1.wait()
thr2.wait()
def test_different_fname_concurrency(self):
# Ensures that two different fname caches are concurrent.
uuid = uuids.fake
backend = imagebackend.Backend(False)
wait1 = eventlet.event.Event()
done1 = eventlet.event.Event()
sig1 = eventlet.event.Event()
thr1 = eventlet.spawn(backend.by_name(self._fake_instance(uuid),
'name').cache,
_concurrency, 'fname2', None,
signal=sig1, wait=wait1, done=done1)
eventlet.sleep(0)
# Thread 1 should run before thread 2.
sig1.wait()
wait2 = eventlet.event.Event()
done2 = eventlet.event.Event()
sig2 = eventlet.event.Event()
thr2 = eventlet.spawn(backend.by_name(self._fake_instance(uuid),
'name').cache,
_concurrency, 'fname1', None,
signal=sig2, wait=wait2, done=done2)
eventlet.sleep(0)
# Wait for thread 2 to start.
sig2.wait()
wait2.send()
tries = 0
while not done2.ready() and tries < 10:
eventlet.sleep(0)
tries += 1
try:
self.assertTrue(done2.ready())
finally:
wait1.send()
eventlet.sleep(0)
# Wait on greenthreads to assert they didn't raise exceptions
# during execution
thr1.wait()
thr2.wait()
class FakeInvalidVolumeDriver(object):
def __init__(self, *args, **kwargs):
raise brick_exception.InvalidConnectorProtocol('oops!')
class FakeConfigGuestDisk(object):
def __init__(self, *args, **kwargs):
self.source_type = None
self.driver_cache = None
class FakeConfigGuest(object):
def __init__(self, *args, **kwargs):
self.driver_cache = None
class FakeNodeDevice(object):
def __init__(self, fakexml):
self.xml = fakexml
def XMLDesc(self, flags):
return self.xml
def _create_test_instance():
flavor = objects.Flavor(memory_mb=2048,
swap=0,
vcpu_weight=None,
root_gb=10,
id=2,
name=u'm1.small',
ephemeral_gb=20,
rxtx_factor=1.0,
flavorid=u'1',
vcpus=2,
extra_specs={})
return {
'id': 1,
'uuid': uuids.instance,
'memory_kb': '1024000',
'basepath': '/some/path',
'bridge_name': 'br100',
'display_name': "Acme webserver",
'vcpus': 2,
'project_id': 'fake',
'bridge': 'br101',
'image_ref': '155d900f-4e14-4e4c-a73d-069cbf4541e6',
'root_gb': 10,
'ephemeral_gb': 20,
'instance_type_id': '5', # m1.small
'extra_specs': {},
'system_metadata': {
'image_disk_format': 'raw'
},
'flavor': flavor,
'new_flavor': None,
'old_flavor': None,
'pci_devices': objects.PciDeviceList(),
'numa_topology': None,
'config_drive': None,
'vm_mode': None,
'kernel_id': None,
'ramdisk_id': None,
'os_type': 'linux',
'user_id': '838a72b0-0d54-4827-8fd6-fb1227633ceb',
'ephemeral_key_uuid': None,
'vcpu_model': None,
'host': 'fake-host',
'task_state': None,
'trusted_certs': None
}
@ddt.ddt
class LibvirtConnTestCase(test.NoDBTestCase,
test_diagnostics.DiagnosticsComparisonMixin):
REQUIRES_LOCKING = True
_EPHEMERAL_20_DEFAULT = eph_name(20)
def setUp(self):
super(LibvirtConnTestCase, self).setUp()
self.user_id = 'fake'
self.project_id = 'fake'
self.context = context.get_admin_context()
temp_dir = self.useFixture(fixtures.TempDir()).path
self.flags(instances_path=temp_dir,
firewall_driver=None)
self.flags(snapshots_directory=temp_dir, group='libvirt')
self.flags(sysinfo_serial="hardware", group="libvirt")
# normally loaded during nova-compute startup
os_vif.initialize()
self.stub_out('nova.virt.disk.api.extend',
lambda image, size, use_cow=False: None)
self.stub_out('nova.virt.libvirt.imagebackend.Image.'
'resolve_driver_format',
imagebackend.Image._get_driver_format)
self.useFixture(fakelibvirt.FakeLibvirtFixture())
self.test_instance = _create_test_instance()
self.test_image_meta = {
"disk_format": "raw",
}
self.image_service = nova.tests.unit.image.fake.stub_out_image_service(
self)
self.device_xml_tmpl = """
<domain type='kvm'>
<devices>
<disk type='block' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<source dev='{device_path}'/>
<target bus='virtio' dev='vdb'/>
<serial>58a84f6d-3f0c-4e19-a0af-eb657b790657</serial>
<address type='pci' domain='0x0' bus='0x0' slot='0x04' \
function='0x0'/>
</disk>
</devices>
</domain>
"""
def relpath(self, path):
return os.path.relpath(path, CONF.instances_path)
def tearDown(self):
nova.tests.unit.image.fake.FakeImageService_reset()
super(LibvirtConnTestCase, self).tearDown()
def test_driver_capabilities(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertTrue(drvr.capabilities['has_imagecache'],
'Driver capabilities for \'has_imagecache\' '
'is invalid')
self.assertTrue(drvr.capabilities['supports_evacuate'],
'Driver capabilities for \'supports_evacuate\' '
'is invalid')
self.assertFalse(drvr.capabilities['supports_migrate_to_same_host'],
'Driver capabilities for '
'\'supports_migrate_to_same_host\' is invalid')
self.assertTrue(drvr.capabilities['supports_attach_interface'],
'Driver capabilities for '
'\'supports_attach_interface\' '
'is invalid')
self.assertTrue(drvr.capabilities['supports_extend_volume'],
'Driver capabilities for '
'\'supports_extend_volume\' '
'is invalid')
self.assertTrue(drvr.capabilities['supports_trusted_certs'],
'Driver capabilities for '
'\'supports_trusted_certs\' '
'is invalid')
self.assertTrue(drvr.capabilities['supports_image_type_qcow2'],
'Driver capabilities for '
'\'supports_image_type_qcow2\' '
'is invalid')
def test_driver_capabilities_qcow2_with_rbd(self):
self.flags(images_type='rbd', group='libvirt')
self.flags(force_raw_images=False)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertFalse(drvr.capabilities['supports_image_type_qcow2'],
'Driver capabilities for '
'\'supports_image_type_qcow2\' '
'is invalid when \'images_type=rbd\'')
self.flags(images_type='rbd', group='libvirt')
self.flags(force_raw_images=True)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertTrue(drvr.capabilities['supports_image_type_qcow2'])
def test_driver_capabilities_qcow2_with_lvm(self):
self.flags(images_type='lvm', group='libvirt')
self.flags(force_raw_images=False)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertFalse(drvr.capabilities['supports_image_type_qcow2'],
'Driver capabilities for '
'\'supports_image_type_qcow2\' '
'is invalid when \'images_type=lvm\'')
self.flags(images_type='lvm', group='libvirt')
self.flags(force_raw_images=True)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertTrue(drvr.capabilities['supports_image_type_qcow2'])
def create_fake_libvirt_mock(self, **kwargs):
"""Defining mocks for LibvirtDriver(libvirt is not used)."""
# A fake libvirt.virConnect
class FakeLibvirtDriver(object):
def defineXML(self, xml):
return FakeVirtDomain()
# Creating mocks
fake = FakeLibvirtDriver()
# Customizing above fake if necessary
for key, val in kwargs.items():
fake.__setattr__(key, val)
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver._conn', fake)
self.stub_out('nova.virt.libvirt.host.Host.get_connection',
lambda x: fake)
def fake_lookup(self, instance_name):
return FakeVirtDomain()
def fake_execute(self, *args, **kwargs):
open(args[-1], "a").close()
def _create_service(self, **kwargs):
service_ref = {'host': kwargs.get('host', 'dummy'),
'disabled': kwargs.get('disabled', False),
'binary': 'nova-compute',
'topic': 'compute',
'report_count': 0}
return objects.Service(**service_ref)
def _get_pause_flag(self, drvr, network_info, power_on=True,
vifs_already_plugged=False):
timeout = CONF.vif_plugging_timeout
events = []
if (drvr._conn_supports_start_paused and
utils.is_neutron() and
not vifs_already_plugged and
power_on and timeout):
events = drvr._get_neutron_events(network_info)
return bool(events)
def test_public_api_signatures(self):
baseinst = driver.ComputeDriver(None)
inst = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertPublicAPISignatures(baseinst, inst)
def test_legacy_block_device_info(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertFalse(drvr.need_legacy_block_device_info)
@mock.patch.object(host.Host, "has_min_version")
def test_min_version_start_ok(self, mock_version):
mock_version.return_value = True
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.init_host("dummyhost")
@mock.patch.object(host.Host, "has_min_version")
def test_min_version_start_abort(self, mock_version):
mock_version.return_value = False
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertRaises(exception.NovaException,
drvr.init_host,
"dummyhost")
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.NEXT_MIN_LIBVIRT_VERSION) - 1)
@mock.patch.object(libvirt_driver.LOG, 'warning')
def test_next_min_version_deprecation_warning(self, mock_warning,
mock_get_libversion):
# Skip test if there's no currently planned new min version
if (versionutils.convert_version_to_int(
libvirt_driver.NEXT_MIN_LIBVIRT_VERSION) ==
versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_VERSION)):
self.skipTest("NEXT_MIN_LIBVIRT_VERSION == MIN_LIBVIRT_VERSION")
# Test that a warning is logged if the libvirt version is less than
# the next required minimum version.
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.init_host("dummyhost")
# assert that the next min version is in a warning message
expected_arg = {'version': versionutils.convert_version_to_str(
versionutils.convert_version_to_int(
libvirt_driver.NEXT_MIN_LIBVIRT_VERSION))}
version_arg_found = False
for call in mock_warning.call_args_list:
if call[0][1] == expected_arg:
version_arg_found = True
break
self.assertTrue(version_arg_found)
@mock.patch.object(fakelibvirt.Connection, 'getVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.NEXT_MIN_QEMU_VERSION) - 1)
@mock.patch.object(libvirt_driver.LOG, 'warning')
def test_next_min_qemu_version_deprecation_warning(self, mock_warning,
mock_get_libversion):
# Skip test if there's no currently planned new min version
if (versionutils.convert_version_to_int(
libvirt_driver.NEXT_MIN_QEMU_VERSION) ==
versionutils.convert_version_to_int(
libvirt_driver.MIN_QEMU_VERSION)):
self.skipTest("NEXT_MIN_QEMU_VERSION == MIN_QEMU_VERSION")
# Test that a warning is logged if the libvirt version is less than
# the next required minimum version.
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.init_host("dummyhost")
# assert that the next min version is in a warning message
expected_arg = {'version': versionutils.convert_version_to_str(
versionutils.convert_version_to_int(
libvirt_driver.NEXT_MIN_QEMU_VERSION))}
version_arg_found = False
for call in mock_warning.call_args_list:
if call[0][1] == expected_arg:
version_arg_found = True
break
self.assertTrue(version_arg_found)
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.NEXT_MIN_LIBVIRT_VERSION))
@mock.patch.object(libvirt_driver.LOG, 'warning')
def test_next_min_version_ok(self, mock_warning, mock_get_libversion):
# Skip test if there's no currently planned new min version
if (versionutils.convert_version_to_int(
libvirt_driver.NEXT_MIN_LIBVIRT_VERSION) ==
versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_VERSION)):
self.skipTest("NEXT_MIN_LIBVIRT_VERSION == MIN_LIBVIRT_VERSION")
# Test that a warning is not logged if the libvirt version is greater
# than or equal to NEXT_MIN_LIBVIRT_VERSION.
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.init_host("dummyhost")
# assert that the next min version is in a warning message
expected_arg = {'version': versionutils.convert_version_to_str(
versionutils.convert_version_to_int(
libvirt_driver.NEXT_MIN_LIBVIRT_VERSION))}
version_arg_found = False
for call in mock_warning.call_args_list:
if call[0][1] == expected_arg:
version_arg_found = True
break
self.assertFalse(version_arg_found)
@mock.patch.object(fakelibvirt.Connection, 'getVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.NEXT_MIN_QEMU_VERSION))
@mock.patch.object(libvirt_driver.LOG, 'warning')
def test_next_min_qemu_version_ok(self, mock_warning, mock_get_libversion):
# Skip test if there's no currently planned new min version
if (versionutils.convert_version_to_int(
libvirt_driver.NEXT_MIN_QEMU_VERSION) ==
versionutils.convert_version_to_int(
libvirt_driver.MIN_QEMU_VERSION)):
self.skipTest("NEXT_MIN_QEMU_VERSION == MIN_QEMU_VERSION")
# Test that a warning is not logged if the libvirt version is greater
# than or equal to NEXT_MIN_QEMU_VERSION.
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.init_host("dummyhost")
# assert that the next min version is in a warning message
expected_arg = {'version': versionutils.convert_version_to_str(
versionutils.convert_version_to_int(
libvirt_driver.NEXT_MIN_QEMU_VERSION))}
version_arg_found = False
for call in mock_warning.call_args_list:
if call[0][1] == expected_arg:
version_arg_found = True
break
self.assertFalse(version_arg_found)
# NOTE(sdague): python2.7 and python3.5 have different behaviors
# when it comes to comparing against the sentinel, so
# has_min_version is needed to pass python3.5.
@mock.patch.object(nova.virt.libvirt.host.Host, "has_min_version",
return_value=True)
@mock.patch.object(fakelibvirt.Connection, 'getVersion',
return_value=mock.sentinel.qemu_version)
def test_qemu_image_version(self, mock_get_libversion, min_ver):
"""Test that init_host sets qemu image version
A sentinel is used here so that we aren't chasing this value
against minimums that get raised over time.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.init_host("dummyhost")
self.assertEqual(images.QEMU_VERSION, mock.sentinel.qemu_version)
@mock.patch.object(fields.Architecture, "from_host",
return_value=fields.Architecture.PPC64)
def test_min_version_ppc_ok(self, mock_arch):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.init_host("dummyhost")
@mock.patch.object(fields.Architecture, "from_host",
return_value=fields.Architecture.S390X)
def test_min_version_s390_ok(self, mock_arch):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.init_host("dummyhost")
def test_file_backed_memory_support_called(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
with mock.patch.object(drvr,
'_check_file_backed_memory_support') as mock_check_fb_support:
drvr.init_host("dummyhost")
self.assertTrue(mock_check_fb_support.called)
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_FILE_BACKED_VERSION))
@mock.patch.object(fakelibvirt.Connection, 'getVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.MIN_QEMU_FILE_BACKED_VERSION))
def test_min_version_file_backed_ok(self, mock_libv, mock_qemu):
self.flags(file_backed_memory=1024, group='libvirt')
self.flags(ram_allocation_ratio=1.0)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr._check_file_backed_memory_support()
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_FILE_BACKED_VERSION) - 1)
@mock.patch.object(fakelibvirt.Connection, 'getVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.MIN_QEMU_FILE_BACKED_VERSION))
def test_min_version_file_backed_old_libvirt(self, mock_libv, mock_qemu):
self.flags(file_backed_memory=1024, group="libvirt")
self.flags(ram_allocation_ratio=1.0)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertRaises(exception.InternalError,
drvr._check_file_backed_memory_support)
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_FILE_BACKED_VERSION))
@mock.patch.object(fakelibvirt.Connection, 'getVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.MIN_QEMU_FILE_BACKED_VERSION) - 1)
def test_min_version_file_backed_old_qemu(self, mock_libv, mock_qemu):
self.flags(file_backed_memory=1024, group="libvirt")
self.flags(ram_allocation_ratio=1.0)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertRaises(exception.InternalError,
drvr._check_file_backed_memory_support)
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_FILE_BACKED_VERSION))
@mock.patch.object(fakelibvirt.Connection, 'getVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.MIN_QEMU_FILE_BACKED_VERSION))
def test_min_version_file_backed_bad_ram_allocation_ratio(self, mock_libv,
mock_qemu):
self.flags(file_backed_memory=1024, group="libvirt")
self.flags(ram_allocation_ratio=1.5)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertRaises(exception.InternalError,
drvr._check_file_backed_memory_support)
def _do_test_parse_migration_flags(self, lm_expected=None,
bm_expected=None):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr._parse_migration_flags()
if lm_expected is not None:
self.assertEqual(lm_expected, drvr._live_migration_flags)
if bm_expected is not None:
self.assertEqual(bm_expected, drvr._block_migration_flags)
def test_parse_live_migration_flags_default(self):
self._do_test_parse_migration_flags(
lm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_LIVE))
def test_parse_live_migration_flags(self):
self._do_test_parse_migration_flags(
lm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_LIVE))
def test_parse_block_migration_flags_default(self):
self._do_test_parse_migration_flags(
bm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_LIVE |
libvirt_driver.libvirt.VIR_MIGRATE_NON_SHARED_INC))
def test_parse_block_migration_flags(self):
self._do_test_parse_migration_flags(
bm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_LIVE |
libvirt_driver.libvirt.VIR_MIGRATE_NON_SHARED_INC))
def test_parse_migration_flags_p2p_xen(self):
self.flags(virt_type='xen', group='libvirt')
self._do_test_parse_migration_flags(
lm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_LIVE),
bm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_LIVE |
libvirt_driver.libvirt.VIR_MIGRATE_NON_SHARED_INC))
def test_live_migration_tunnelled_true(self):
self.flags(live_migration_tunnelled=True, group='libvirt')
self._do_test_parse_migration_flags(
lm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_LIVE |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_TUNNELLED),
bm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_LIVE |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_NON_SHARED_INC |
libvirt_driver.libvirt.VIR_MIGRATE_TUNNELLED))
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
def test_live_migration_with_native_tls(self, host):
self.flags(live_migration_with_native_tls=True, group='libvirt')
self._do_test_parse_migration_flags(
lm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_LIVE |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_TLS),
bm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_LIVE |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_NON_SHARED_INC |
libvirt_driver.libvirt.VIR_MIGRATE_TLS))
def test_live_migration_permit_postcopy_true(self):
self.flags(live_migration_permit_post_copy=True, group='libvirt')
self._do_test_parse_migration_flags(
lm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_LIVE |
libvirt_driver.libvirt.VIR_MIGRATE_POSTCOPY),
bm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_LIVE |
libvirt_driver.libvirt.VIR_MIGRATE_NON_SHARED_INC |
libvirt_driver.libvirt.VIR_MIGRATE_POSTCOPY))
def test_live_migration_permit_auto_converge_true(self):
self.flags(live_migration_permit_auto_converge=True, group='libvirt')
self._do_test_parse_migration_flags(
lm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_LIVE |
libvirt_driver.libvirt.VIR_MIGRATE_AUTO_CONVERGE),
bm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_LIVE |
libvirt_driver.libvirt.VIR_MIGRATE_NON_SHARED_INC |
libvirt_driver.libvirt.VIR_MIGRATE_AUTO_CONVERGE))
def test_live_migration_permit_auto_converge_and_post_copy_true(self):
self.flags(live_migration_permit_auto_converge=True, group='libvirt')
self.flags(live_migration_permit_post_copy=True, group='libvirt')
self._do_test_parse_migration_flags(
lm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_LIVE |
libvirt_driver.libvirt.VIR_MIGRATE_POSTCOPY),
bm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_LIVE |
libvirt_driver.libvirt.VIR_MIGRATE_NON_SHARED_INC |
libvirt_driver.libvirt.VIR_MIGRATE_POSTCOPY))
def test_live_migration_permit_postcopy_false(self):
self._do_test_parse_migration_flags(
lm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_LIVE),
bm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_LIVE |
libvirt_driver.libvirt.VIR_MIGRATE_NON_SHARED_INC))
def test_live_migration_permit_autoconverge_false(self):
self._do_test_parse_migration_flags(
lm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_LIVE),
bm_expected=(libvirt_driver.libvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
libvirt_driver.libvirt.VIR_MIGRATE_PERSIST_DEST |
libvirt_driver.libvirt.VIR_MIGRATE_PEER2PEER |
libvirt_driver.libvirt.VIR_MIGRATE_LIVE |
libvirt_driver.libvirt.VIR_MIGRATE_NON_SHARED_INC))
@mock.patch('nova.utils.get_image_from_system_metadata')
@mock.patch.object(host.Host,
'has_min_version', return_value=True)
@mock.patch('nova.virt.libvirt.host.Host.get_guest')
def test_set_admin_password(self, mock_get_guest, ver, mock_image):
self.flags(virt_type='kvm', group='libvirt')
instance = objects.Instance(**self.test_instance)
mock_image.return_value = {"properties": {
"hw_qemu_guest_agent": "yes"}}
mock_guest = mock.Mock(spec=libvirt_guest.Guest)
mock_get_guest.return_value = mock_guest
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.set_admin_password(instance, "123")
mock_guest.set_user_password.assert_called_once_with("root", "123")
@mock.patch('nova.objects.Instance.save')
@mock.patch('oslo_serialization.base64.encode_as_text')
@mock.patch('nova.api.metadata.password.convert_password')
@mock.patch('nova.crypto.ssh_encrypt_text')
@mock.patch('nova.utils.get_image_from_system_metadata')
@mock.patch.object(host.Host,
'has_min_version', return_value=True)
@mock.patch('nova.virt.libvirt.host.Host.get_guest')
def test_set_admin_password_saves_sysmeta(self, mock_get_guest,
ver, mock_image, mock_encrypt,
mock_convert, mock_encode,
mock_save):
self.flags(virt_type='kvm', group='libvirt')
instance = objects.Instance(**self.test_instance)
# Password will only be saved in sysmeta if the key_data is present
instance.key_data = 'ssh-rsa ABCFEFG'
mock_image.return_value = {"properties": {
"hw_qemu_guest_agent": "yes"}}
mock_guest = mock.Mock(spec=libvirt_guest.Guest)
mock_get_guest.return_value = mock_guest
mock_convert.return_value = {'password_0': 'converted-password'}
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.set_admin_password(instance, "123")
mock_guest.set_user_password.assert_called_once_with("root", "123")
mock_encrypt.assert_called_once_with(instance.key_data, '123')
mock_encode.assert_called_once_with(mock_encrypt.return_value)
mock_convert.assert_called_once_with(None, mock_encode.return_value)
self.assertEqual('converted-password',
instance.system_metadata['password_0'])
mock_save.assert_called_once_with()
@mock.patch('nova.virt.libvirt.host.Host.get_guest')
def test_set_admin_password_parallels(self, mock_get_guest):
self.flags(virt_type='parallels', group='libvirt')
instance = objects.Instance(**self.test_instance)
mock_guest = mock.Mock(spec=libvirt_guest.Guest)
mock_get_guest.return_value = mock_guest
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.set_admin_password(instance, "123")
mock_guest.set_user_password.assert_called_once_with("root", "123")
@mock.patch('nova.utils.get_image_from_system_metadata')
@mock.patch.object(host.Host,
'has_min_version', return_value=True)
@mock.patch('nova.virt.libvirt.host.Host.get_guest')
def test_set_admin_password_windows(self, mock_get_guest, ver, mock_image):
self.flags(virt_type='kvm', group='libvirt')
instance = objects.Instance(**self.test_instance)
instance.os_type = "windows"
mock_image.return_value = {"properties": {
"hw_qemu_guest_agent": "yes"}}
mock_guest = mock.Mock(spec=libvirt_guest.Guest)
mock_get_guest.return_value = mock_guest
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.set_admin_password(instance, "123")
mock_guest.set_user_password.assert_called_once_with(
"Administrator", "123")
@mock.patch('nova.utils.get_image_from_system_metadata')
@mock.patch.object(host.Host,
'has_min_version', return_value=True)
@mock.patch('nova.virt.libvirt.host.Host.get_guest')
def test_set_admin_password_image(self, mock_get_guest, ver, mock_image):
self.flags(virt_type='kvm', group='libvirt')
instance = objects.Instance(**self.test_instance)
mock_image.return_value = {"properties": {
"hw_qemu_guest_agent": "yes",
"os_admin_user": "foo"
}}
mock_guest = mock.Mock(spec=libvirt_guest.Guest)
mock_get_guest.return_value = mock_guest
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.set_admin_password(instance, "123")
mock_guest.set_user_password.assert_called_once_with("foo", "123")
@mock.patch('nova.utils.get_image_from_system_metadata')
@mock.patch.object(host.Host,
'has_min_version', return_value=True)
def test_set_admin_password_bad_hyp(self, mock_svc, mock_image):
self.flags(virt_type='lxc', group='libvirt')
instance = objects.Instance(**self.test_instance)
mock_image.return_value = {"properties": {
"hw_qemu_guest_agent": "yes"}}
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertRaises(exception.SetAdminPasswdNotSupported,
drvr.set_admin_password, instance, "123")
@mock.patch.object(host.Host,
'has_min_version', return_value=True)
def test_set_admin_password_guest_agent_not_running(self, mock_svc):
self.flags(virt_type='kvm', group='libvirt')
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertRaises(exception.QemuGuestAgentNotEnabled,
drvr.set_admin_password, instance, "123")
@mock.patch('nova.utils.get_image_from_system_metadata')
@mock.patch.object(host.Host,
'has_min_version', return_value=True)
@mock.patch('nova.virt.libvirt.host.Host.get_guest')
def test_set_admin_password_error(self, mock_get_guest, ver, mock_image):
self.flags(virt_type='kvm', group='libvirt')
instance = objects.Instance(**self.test_instance)
mock_image.return_value = {"properties": {
"hw_qemu_guest_agent": "yes"}}
mock_guest = mock.Mock(spec=libvirt_guest.Guest)
mock_guest.set_user_password.side_effect = (
fakelibvirt.libvirtError("error"))
mock_get_guest.return_value = mock_guest
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
with mock.patch.object(
drvr, '_save_instance_password_if_sshkey_present') as save_p:
self.assertRaises(exception.NovaException,
drvr.set_admin_password, instance, "123")
save_p.assert_not_called()
@mock.patch('nova.utils.get_image_from_system_metadata')
@mock.patch.object(host.Host,
'has_min_version', return_value=True)
@mock.patch('nova.virt.libvirt.host.Host.get_guest')
def test_set_admin_password_error_with_unicode(
self, mock_get_guest, ver, mock_image):
self.flags(virt_type='kvm', group='libvirt')
instance = objects.Instance(**self.test_instance)
mock_image.return_value = {"properties": {
"hw_qemu_guest_agent": "yes"}}
mock_guest = mock.Mock(spec=libvirt_guest.Guest)
mock_guest.set_user_password.side_effect = (
fakelibvirt.libvirtError(
b"failed: \xe9\x94\x99\xe8\xaf\xaf\xe3\x80\x82"))
mock_get_guest.return_value = mock_guest
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertRaises(exception.NovaException,
drvr.set_admin_password, instance, "123")
@mock.patch('nova.utils.get_image_from_system_metadata')
@mock.patch.object(host.Host,
'has_min_version', return_value=True)
@mock.patch('nova.virt.libvirt.host.Host.get_guest')
def test_set_admin_password_not_implemented(
self, mock_get_guest, ver, mock_image):
self.flags(virt_type='kvm', group='libvirt')
instance = objects.Instance(**self.test_instance)
mock_image.return_value = {"properties": {
"hw_qemu_guest_agent": "yes"}}
mock_guest = mock.Mock(spec=libvirt_guest.Guest)
not_implemented = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
"Guest agent disappeared while executing command",
error_code=fakelibvirt.VIR_ERR_AGENT_UNRESPONSIVE)
mock_guest.set_user_password.side_effect = not_implemented
mock_get_guest.return_value = mock_guest
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertRaises(NotImplementedError,
drvr.set_admin_password, instance, "123")
@mock.patch.object(objects.Service, 'save')
@mock.patch.object(objects.Service, 'get_by_compute_host')
def test_set_host_enabled_with_disable(self, mock_svc, mock_save):
# Tests disabling an enabled host.
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
svc = self._create_service(host='fake-mini')
mock_svc.return_value = svc
drvr._set_host_enabled(False)
self.assertTrue(svc.disabled)
mock_save.assert_called_once_with()
@mock.patch.object(objects.Service, 'save')
@mock.patch.object(objects.Service, 'get_by_compute_host')
def test_set_host_enabled_with_enable(self, mock_svc, mock_save):
# Tests enabling a disabled host.
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
svc = self._create_service(disabled=True, host='fake-mini')
mock_svc.return_value = svc
drvr._set_host_enabled(True)
# since disabled_reason is not set and not prefixed with "AUTO:",
# service should not be enabled.
mock_save.assert_not_called()
self.assertTrue(svc.disabled)
@mock.patch.object(objects.Service, 'save')
@mock.patch.object(objects.Service, 'get_by_compute_host')
def test_set_host_enabled_with_enable_state_enabled(self, mock_svc,
mock_save):
# Tests enabling an enabled host.
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
svc = self._create_service(disabled=False, host='fake-mini')
mock_svc.return_value = svc
drvr._set_host_enabled(True)
self.assertFalse(svc.disabled)
mock_save.assert_not_called()
@mock.patch.object(objects.Service, 'save')
@mock.patch.object(objects.Service, 'get_by_compute_host')
def test_set_host_enabled_with_disable_state_disabled(self, mock_svc,
mock_save):
# Tests disabling a disabled host.
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
svc = self._create_service(disabled=True, host='fake-mini')
mock_svc.return_value = svc
drvr._set_host_enabled(False)
mock_save.assert_not_called()
self.assertTrue(svc.disabled)
def test_set_host_enabled_swallows_exceptions(self):
# Tests that set_host_enabled will swallow exceptions coming from the
# db_api code so they don't break anything calling it, e.g. the
# _get_new_connection method.
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
with mock.patch.object(db, 'service_get_by_compute_host') as db_mock:
# Make db.service_get_by_compute_host raise NovaException; this
# is more robust than just raising ComputeHostNotFound.
db_mock.side_effect = exception.NovaException
drvr._set_host_enabled(False)
@mock.patch.object(fakelibvirt.virConnect, "nodeDeviceLookupByName")
def test_prepare_pci_device(self, mock_lookup):
pci_devices = [dict(hypervisor_name='xxx')]
self.flags(virt_type='xen', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
conn = drvr._host.get_connection()
mock_lookup.side_effect = lambda x: fakelibvirt.NodeDevice(conn)
drvr._prepare_pci_devices_for_use(pci_devices)
@mock.patch('nova.context.get_admin_context')
@mock.patch('nova.compute.utils.notify_about_libvirt_connect_error')
def test_versioned_notification(self, mock_notify, mock_get):
mock_get.return_value = self.context
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
fake_error = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError, "Failed to connect to host",
error_code=fakelibvirt.VIR_ERR_INTERNAL_ERROR)
with mock.patch('nova.virt.libvirt.host.Host._get_connection',
side_effect=fake_error):
self.assertRaises(exception.HypervisorUnavailable,
drvr._host.get_connection)
mock_get.assert_called_once_with()
mock_notify.assert_called_once_with(self.context, ip=CONF.my_ip,
exception=fake_error, tb=mock.ANY)
_, kwargs = mock_notify.call_args
self.assertIn('Traceback (most recent call last):', kwargs['tb'])
@mock.patch.object(fakelibvirt.virConnect, "nodeDeviceLookupByName")
@mock.patch.object(fakelibvirt.virNodeDevice, "dettach")
def test_prepare_pci_device_exception(self, mock_detach, mock_lookup):
pci_devices = [dict(hypervisor_name='xxx',
id='id1',
instance_uuid='uuid')]
self.flags(virt_type='xen', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
conn = drvr._host.get_connection()
mock_lookup.side_effect = lambda x: fakelibvirt.NodeDevice(conn)
mock_detach.side_effect = fakelibvirt.libvirtError("xxxx")
self.assertRaises(exception.PciDevicePrepareFailed,
drvr._prepare_pci_devices_for_use, pci_devices)
@mock.patch.object(host.Host, "has_min_version", return_value=False)
def test_device_metadata(self, mock_version):
xml = """
<domain>
<name>dummy</name>
<uuid>32dfcb37-5af1-552b-357c-be8c3aa38310</uuid>
<memory>1048576</memory>
<vcpu>1</vcpu>
<os>
<type arch='x86_64' machine='pc-i440fx-2.4'>hvm</type>
</os>
<devices>
<disk type='block' device='disk'>
<driver name='qemu' type='qcow2'/>
<source dev='/dev/mapper/generic'/>
<target dev='sda' bus='scsi'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<disk type='block' device='disk'>
<driver name='qemu' type='qcow2'/>
<source dev='/dev/mapper/generic-1'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='1' target='0' unit='0'/>
</disk>
<disk type='block' device='disk'>
<driver name='qemu' type='qcow2'/>
<source dev='/dev/mapper/generic-2'/>
<target dev='hdb' bus='ide'/>
<address type='drive' controller='0' bus='1' target='1' unit='1'/>
</disk>
<disk type='block' device='disk'>
<driver name='qemu' type='qcow2'/>
<source dev='/dev/mapper/aa1'/>
<target dev='sdb' bus='usb'/>
</disk>
<disk type='block' device='disk'>
<driver name='qemu' type='qcow2'/>
<source dev='/var/lib/libvirt/images/centos'/>
<backingStore/>
<target dev='vda' bus='virtio'/>
<boot order='1'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x09'
function='0x0'/>
</disk>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source file='/var/lib/libvirt/images/generic.qcow2'/>
<target dev='vdb' bus='virtio'/>
<address type='virtio-mmio'/>
</disk>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2'/>
<source file='/var/lib/libvirt/images/test.qcow2'/>
<backingStore/>
<target dev='vdc' bus='virtio'/>
<alias name='virtio-disk1'/>
<address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0000'/>
</disk>
<interface type='network'>
<mac address='52:54:00:f6:35:8f'/>
<source network='default'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
</interface>
<interface type='network'>
<mac address='51:5a:2c:a4:5e:1b'/>
<source network='default'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04'
function='0x1'/>
</interface>
<interface type='network'>
<mac address='fa:16:3e:d1:28:e4'/>
<source network='default'/>
<model type='virtio'/>
<address type='virtio-mmio'/>
</interface>
<interface type='network'>
<mac address='52:54:00:14:6f:50'/>
<source network='default' bridge='virbr0'/>
<target dev='vnet0'/>
<model type='virtio'/>
<alias name='net0'/>
<address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0001'/>
</interface>
<hostdev mode="subsystem" type="pci" managed="yes">
<source>
<address bus="0x06" domain="0x0000" function="0x1"
slot="0x00"/>
</source>
</hostdev>
</devices>
</domain>"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
dom = fakelibvirt.Domain(drvr._get_connection(), xml, False)
guest = libvirt_guest.Guest(dom)
instance_ref = objects.Instance(**self.test_instance)
bdms = block_device_obj.block_device_make_list_from_dicts(
self.context, [
fake_block_device.FakeDbBlockDeviceDict(
{'id': 1,
'source_type': 'volume', 'destination_type': 'volume',
'device_name': '/dev/sda', 'tag': "db",
'volume_id': uuids.volume_1}),
fake_block_device.FakeDbBlockDeviceDict(
{'id': 2,
'source_type': 'volume', 'destination_type': 'volume',
'device_name': '/dev/hda', 'tag': "nfvfunc1",
'volume_id': uuids.volume_2}),
fake_block_device.FakeDbBlockDeviceDict(
{'id': 3,
'source_type': 'volume', 'destination_type': 'volume',
'device_name': '/dev/sdb', 'tag': "nfvfunc2",
'volume_id': uuids.volume_3}),
fake_block_device.FakeDbBlockDeviceDict(
{'id': 4,
'source_type': 'volume', 'destination_type': 'volume',
'device_name': '/dev/hdb',
'volume_id': uuids.volume_4}),
fake_block_device.FakeDbBlockDeviceDict(
{'id': 5,
'source_type': 'volume', 'destination_type': 'volume',
'device_name': '/dev/vda', 'tag': "nfvfunc3",
'volume_id': uuids.volume_5}),
fake_block_device.FakeDbBlockDeviceDict(
{'id': 6,
'source_type': 'volume', 'destination_type': 'volume',
'device_name': '/dev/vdb', 'tag': "nfvfunc4",
'volume_id': uuids.volume_6}),
fake_block_device.FakeDbBlockDeviceDict(
{'id': 7,
'source_type': 'volume', 'destination_type': 'volume',
'device_name': '/dev/vdc', 'tag': "nfvfunc5",
'volume_id': uuids.volume_7}),
]
)
vif = obj_vif.VirtualInterface(context=self.context)
vif.address = '52:54:00:f6:35:8f'
vif.network_id = 123
vif.instance_uuid = '32dfcb37-5af1-552b-357c-be8c3aa38310'
vif.uuid = '12ec4b21-ef22-6c21-534b-ba3e3ab3a311'
vif.tag = 'mytag1'
vif1 = obj_vif.VirtualInterface(context=self.context)
vif1.address = '51:5a:2c:a4:5e:1b'
vif1.network_id = 123
vif1.instance_uuid = '32dfcb37-5af1-552b-357c-be8c3aa38310'
vif1.uuid = 'abec4b21-ef22-6c21-534b-ba3e3ab3a312'
vif2 = obj_vif.VirtualInterface(context=self.context)
vif2.address = 'fa:16:3e:d1:28:e4'
vif2.network_id = 123
vif2.instance_uuid = '32dfcb37-5af1-552b-357c-be8c3aa38310'
vif2.uuid = '645686e4-7086-4eab-8c2f-c41f017a1b16'
vif2.tag = 'mytag2'
vif3 = obj_vif.VirtualInterface(context=self.context)
vif3.address = '52:54:00:14:6f:50'
vif3.network_id = 123
vif3.instance_uuid = '32dfcb37-5af1-552b-357c-be8c3aa38310'
vif3.uuid = '99cc3604-782d-4a32-a27c-bc33ac56ce86'
vif3.tag = 'mytag3'
vif4 = obj_vif.VirtualInterface(context=self.context)
vif4.address = 'da:d1:f2:91:95:c1'
vif4.tag = 'pf_tag'
vifs = [vif, vif1, vif2, vif3, vif4]
network_info = _fake_network_info(self, 4)
network_info[0]['vnic_type'] = network_model.VNIC_TYPE_DIRECT_PHYSICAL
network_info[0]['address'] = "51:5a:2c:a4:5e:1b"
network_info[0]['details'] = dict(vlan='2145')
network_info[0]['profile'] = dict(trusted='true')
instance_ref.info_cache = objects.InstanceInfoCache(
network_info=network_info)
with test.nested(
mock.patch('nova.objects.VirtualInterfaceList'
'.get_by_instance_uuid', return_value=vifs),
mock.patch('nova.objects.BlockDeviceMappingList'
'.get_by_instance_uuid', return_value=bdms),
mock.patch('nova.virt.libvirt.host.Host.get_guest',
return_value=guest),
mock.patch.object(nova.virt.libvirt.guest.Guest, 'get_xml_desc',
return_value=xml),
mock.patch.object(pci_utils, 'get_mac_by_pci_address',
return_value='da:d1:f2:91:95:c1')):
metadata_obj = drvr._build_device_metadata(self.context,
instance_ref)
metadata = metadata_obj.devices
self.assertEqual(11, len(metadata))
self.assertIsInstance(metadata[0],
objects.DiskMetadata)
self.assertIsInstance(metadata[0].bus,
objects.SCSIDeviceBus)
self.assertEqual(['db'], metadata[0].tags)
self.assertEqual(uuids.volume_1, metadata[0].serial)
self.assertFalse(metadata[0].bus.obj_attr_is_set('address'))
self.assertEqual(['nfvfunc1'], metadata[1].tags)
self.assertEqual(uuids.volume_2, metadata[1].serial)
self.assertIsInstance(metadata[1],
objects.DiskMetadata)
self.assertIsInstance(metadata[1].bus,
objects.IDEDeviceBus)
self.assertEqual(['nfvfunc1'], metadata[1].tags)
self.assertFalse(metadata[1].bus.obj_attr_is_set('address'))
self.assertIsInstance(metadata[2],
objects.DiskMetadata)
self.assertIsInstance(metadata[2].bus,
objects.USBDeviceBus)
self.assertEqual(['nfvfunc2'], metadata[2].tags)
self.assertEqual(uuids.volume_3, metadata[2].serial)
self.assertFalse(metadata[2].bus.obj_attr_is_set('address'))
self.assertIsInstance(metadata[3],
objects.DiskMetadata)
self.assertIsInstance(metadata[3].bus,
objects.PCIDeviceBus)
self.assertEqual(['nfvfunc3'], metadata[3].tags)
# NOTE(artom) We're not checking volume 4 because it's not tagged
# and only tagged devices appear in the metadata
self.assertEqual(uuids.volume_5, metadata[3].serial)
self.assertEqual('0000:00:09.0', metadata[3].bus.address)
self.assertIsInstance(metadata[4],
objects.DiskMetadata)
self.assertEqual(['nfvfunc4'], metadata[4].tags)
self.assertEqual(uuids.volume_6, metadata[4].serial)
self.assertIsInstance(metadata[5],
objects.DiskMetadata)
self.assertEqual(['nfvfunc5'], metadata[5].tags)
self.assertEqual(uuids.volume_7, metadata[5].serial)
self.assertIsInstance(metadata[6],
objects.NetworkInterfaceMetadata)
self.assertIsInstance(metadata[6].bus,
objects.PCIDeviceBus)
self.assertEqual(['mytag1'], metadata[6].tags)
self.assertEqual('0000:00:03.0', metadata[6].bus.address)
self.assertFalse(metadata[6].vf_trusted)
# Make sure that interface with vlan is exposed to the metadata
self.assertIsInstance(metadata[7],
objects.NetworkInterfaceMetadata)
self.assertEqual('51:5a:2c:a4:5e:1b', metadata[7].mac)
self.assertEqual(2145, metadata[7].vlan)
self.assertTrue(metadata[7].vf_trusted)
self.assertIsInstance(metadata[8],
objects.NetworkInterfaceMetadata)
self.assertEqual(['mytag2'], metadata[8].tags)
self.assertFalse(metadata[8].vf_trusted)
self.assertIsInstance(metadata[9],
objects.NetworkInterfaceMetadata)
self.assertEqual(['mytag3'], metadata[9].tags)
self.assertFalse(metadata[9].vf_trusted)
self.assertIsInstance(metadata[10],
objects.NetworkInterfaceMetadata)
self.assertEqual(['pf_tag'], metadata[10].tags)
self.assertEqual('da:d1:f2:91:95:c1', metadata[10].mac)
self.assertEqual('0000:06:00.1', metadata[10].bus.address)
@mock.patch.object(host.Host, 'get_connection')
@mock.patch.object(nova.virt.libvirt.guest.Guest, 'get_xml_desc')
def test_detach_pci_devices(self, mocked_get_xml_desc, mock_conn):
fake_domXML1_with_pci = (
"""<domain> <devices>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source file='xxx'/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x04' function='0x0'/>
</disk>
<hostdev mode="subsystem" type="pci" managed="yes">
<source>
<address function="0x1" slot="0x10" domain="0x0001"
bus="0x04"/>
</source>
</hostdev></devices></domain>""")
fake_domXML1_without_pci = (
"""<domain> <devices>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source file='xxx'/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0001' bus='0x00'
slot='0x04' function='0x0'/>
</disk></devices></domain>""")
pci_device_info = {'compute_node_id': 1,
'instance_uuid': 'uuid',
'address': '0001:04:10.1'}
pci_device = objects.PciDevice(**pci_device_info)
pci_devices = [pci_device]
mocked_get_xml_desc.return_value = fake_domXML1_without_pci
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
dom = fakelibvirt.Domain(
drvr._get_connection(), fake_domXML1_with_pci, False)
guest = libvirt_guest.Guest(dom)
drvr._detach_pci_devices(guest, pci_devices)
@mock.patch.object(host.Host, 'get_connection')
@mock.patch.object(nova.virt.libvirt.guest.Guest, 'get_xml_desc')
def test_detach_pci_devices_timeout(self, mocked_get_xml_desc, mock_conn):
fake_domXML1_with_pci = (
"""<domain> <devices>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source file='xxx'/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x04' function='0x0'/>
</disk>
<hostdev mode="subsystem" type="pci" managed="yes">
<source>
<address function="0x1" slot="0x10" domain="0x0001"
bus="0x04"/>
</source>
</hostdev></devices></domain>""")
pci_device_info = {'compute_node_id': 1,
'instance_uuid': 'uuid',
'address': '0001:04:10.1'}
pci_device = objects.PciDevice(**pci_device_info)
pci_devices = [pci_device]
mocked_get_xml_desc.return_value = fake_domXML1_with_pci
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
dom = fakelibvirt.Domain(
drvr._get_connection(), fake_domXML1_with_pci, False)
guest = libvirt_guest.Guest(dom)
self.assertRaises(exception.PciDeviceDetachFailed,
drvr._detach_pci_devices, guest, pci_devices)
@mock.patch.object(connector, 'get_connector_properties')
def test_get_connector(self, fake_get_connector):
initiator = 'fake.initiator.iqn'
ip = 'fakeip'
host = 'fakehost'
wwpns = ['100010604b019419']
wwnns = ['200010604b019419']
self.flags(my_ip=ip)
self.flags(host=host)
expected = {
'ip': ip,
'initiator': initiator,
'host': host,
'wwpns': wwpns,
'wwnns': wwnns
}
volume = {
'id': 'fake'
}
# TODO(walter-boring) add the fake in os-brick
fake_get_connector.return_value = expected
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
result = drvr.get_volume_connector(volume)
self.assertThat(expected, matchers.DictMatches(result))
@mock.patch.object(connector, 'get_connector_properties')
def test_get_connector_storage_ip(self, fake_get_connector):
ip = '100.100.100.100'
storage_ip = '101.101.101.101'
self.flags(my_block_storage_ip=storage_ip, my_ip=ip)
volume = {
'id': 'fake'
}
expected = {
'ip': storage_ip
}
# TODO(walter-boring) add the fake in os-brick
fake_get_connector.return_value = expected
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
result = drvr.get_volume_connector(volume)
self.assertEqual(storage_ip, result['ip'])
def test_lifecycle_event_registration(self):
calls = []
def fake_registerErrorHandler(*args, **kwargs):
calls.append('fake_registerErrorHandler')
def fake_get_host_capabilities(**args):
cpu = vconfig.LibvirtConfigGuestCPU()
cpu.arch = fields.Architecture.ARMV7
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = cpu
calls.append('fake_get_host_capabilities')
return caps
@mock.patch.object(fakelibvirt, 'registerErrorHandler',
side_effect=fake_registerErrorHandler)
@mock.patch.object(host.Host, "get_capabilities",
side_effect=fake_get_host_capabilities)
def test_init_host(get_host_capabilities, register_error_handler):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.init_host("test_host")
test_init_host()
# NOTE(dkliban): Will fail if get_host_capabilities is called before
# registerErrorHandler
self.assertEqual(['fake_registerErrorHandler',
'fake_get_host_capabilities'], calls)
def test_sanitize_log_to_xml(self):
# setup fake data
data = {'auth_password': 'scrubme'}
bdm = [{'connection_info': {'data': data}}]
bdi = {'block_device_mapping': bdm}
# Tests that the parameters to the _get_guest_xml method
# are sanitized for passwords when logged.
def fake_debug(*args, **kwargs):
if 'auth_password' in args[0]:
self.assertNotIn('scrubme', args[0])
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
conf = mock.Mock()
with test.nested(
mock.patch.object(libvirt_driver.LOG, 'debug',
side_effect=fake_debug),
mock.patch.object(drvr, '_get_guest_config', return_value=conf)
) as (
debug_mock, conf_mock
):
drvr._get_guest_xml(self.context, self.test_instance,
network_info={}, disk_info={},
image_meta={}, block_device_info=bdi)
# we don't care what the log message is, we just want to make sure
# our stub method is called which asserts the password is scrubbed
self.assertTrue(debug_mock.called)
@mock.patch.object(time, "time")
def test_get_guest_config(self, time_mock):
time_mock.return_value = 1234567.89
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
test_instance = copy.deepcopy(self.test_instance)
test_instance["display_name"] = "purple tomatoes"
test_instance['system_metadata']['owner_project_name'] = 'sweetshop'
test_instance['system_metadata']['owner_user_name'] = 'cupcake'
ctxt = context.RequestContext(project_id=123,
project_name="aubergine",
user_id=456,
user_name="pie")
flavor = objects.Flavor(name='m1.small',
memory_mb=6,
vcpus=28,
root_gb=496,
ephemeral_gb=8128,
swap=33550336,
extra_specs={})
instance_ref = objects.Instance(**test_instance)
instance_ref.flavor = flavor
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info,
context=ctxt)
self.assertEqual(cfg.uuid, instance_ref["uuid"])
self.assertEqual(2, len(cfg.features))
self.assertIsInstance(cfg.features[0],
vconfig.LibvirtConfigGuestFeatureACPI)
self.assertIsInstance(cfg.features[1],
vconfig.LibvirtConfigGuestFeatureAPIC)
self.assertEqual(cfg.memory, 6 * units.Ki)
self.assertEqual(cfg.vcpus, 28)
self.assertEqual(cfg.os_type, fields.VMMode.HVM)
self.assertEqual(cfg.os_boot_dev, ["hd"])
self.assertIsNone(cfg.os_root)
self.assertEqual(len(cfg.devices), 9)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestInterface)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestInput)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[7],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[8],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual(len(cfg.metadata), 1)
self.assertIsInstance(cfg.metadata[0],
vconfig.LibvirtConfigGuestMetaNovaInstance)
self.assertEqual(version.version_string_with_package(),
cfg.metadata[0].package)
self.assertEqual("purple tomatoes",
cfg.metadata[0].name)
self.assertEqual(1234567.89,
cfg.metadata[0].creationTime)
self.assertEqual("image",
cfg.metadata[0].roottype)
self.assertEqual(str(instance_ref["image_ref"]),
cfg.metadata[0].rootid)
self.assertIsInstance(cfg.metadata[0].owner,
vconfig.LibvirtConfigGuestMetaNovaOwner)
self.assertEqual("838a72b0-0d54-4827-8fd6-fb1227633ceb",
cfg.metadata[0].owner.userid)
self.assertEqual("cupcake",
cfg.metadata[0].owner.username)
self.assertEqual("fake",
cfg.metadata[0].owner.projectid)
self.assertEqual("sweetshop",
cfg.metadata[0].owner.projectname)
self.assertIsInstance(cfg.metadata[0].flavor,
vconfig.LibvirtConfigGuestMetaNovaFlavor)
self.assertEqual("m1.small",
cfg.metadata[0].flavor.name)
self.assertEqual(6,
cfg.metadata[0].flavor.memory)
self.assertEqual(28,
cfg.metadata[0].flavor.vcpus)
self.assertEqual(496,
cfg.metadata[0].flavor.disk)
self.assertEqual(8128,
cfg.metadata[0].flavor.ephemeral)
self.assertEqual(33550336,
cfg.metadata[0].flavor.swap)
def test_get_guest_config_q35(self):
self.flags(virt_type="kvm",
group='libvirt')
TEST_AMOUNT_OF_PCIE_SLOTS = 8
CONF.set_override("num_pcie_ports", TEST_AMOUNT_OF_PCIE_SLOTS,
group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_machine_type":
"pc-q35-test"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
num_ports = 0
for device in cfg.devices:
try:
if (device.root_name == 'controller' and
device.model == 'pcie-root-port'):
num_ports += 1
except AttributeError:
pass
self.assertEqual(TEST_AMOUNT_OF_PCIE_SLOTS, num_ports)
def test_get_guest_config_pcie_i440fx(self):
self.flags(virt_type="kvm",
group='libvirt')
TEST_AMOUNT_OF_PCIE_SLOTS = 8
CONF.set_override("num_pcie_ports", TEST_AMOUNT_OF_PCIE_SLOTS,
group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_machine_type":
"pc-i440fx-test"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
num_ports = 0
for device in cfg.devices:
try:
if (device.root_name == 'controller' and
device.model == 'pcie-root-port'):
num_ports += 1
except AttributeError:
pass
# i440fx is not pcie machine so there should be no pcie ports
self.assertEqual(0, num_ports)
def test_get_guest_config_missing_ownership_info(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
test_instance = copy.deepcopy(self.test_instance)
ctxt = context.RequestContext(project_id=123,
project_name="aubergine",
user_id=456,
user_name="pie")
flavor = objects.Flavor(name='m1.small',
memory_mb=6,
vcpus=28,
root_gb=496,
ephemeral_gb=8128,
swap=33550336,
extra_specs={})
instance_ref = objects.Instance(**test_instance)
instance_ref.flavor = flavor
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info,
context=ctxt)
self.assertEqual("N/A",
cfg.metadata[0].owner.username)
self.assertEqual("N/A",
cfg.metadata[0].owner.projectname)
def test_get_guest_config_lxc(self):
self.flags(virt_type='lxc', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, {'mapping': {}})
self.assertEqual(instance_ref["uuid"], cfg.uuid)
self.assertEqual(instance_ref.flavor.memory_mb * units.Ki, cfg.memory)
self.assertEqual(instance_ref.flavor.vcpus, cfg.vcpus)
self.assertEqual(fields.VMMode.EXE, cfg.os_type)
self.assertEqual("/sbin/init", cfg.os_init_path)
self.assertEqual("console=tty0 console=ttyS0 console=hvc0",
cfg.os_cmdline)
self.assertIsNone(cfg.os_root)
self.assertEqual(3, len(cfg.devices))
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestFilesys)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestInterface)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestConsole)
def test_get_guest_config_lxc_with_id_maps(self):
self.flags(virt_type='lxc', group='libvirt')
self.flags(uid_maps=['0:1000:100'], group='libvirt')
self.flags(gid_maps=['0:1000:100'], group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, {'mapping': {}})
self.assertEqual(instance_ref["uuid"], cfg.uuid)
self.assertEqual(instance_ref.flavor.memory_mb * units.Ki, cfg.memory)
self.assertEqual(instance_ref.vcpus, cfg.vcpus)
self.assertEqual(fields.VMMode.EXE, cfg.os_type)
self.assertEqual("/sbin/init", cfg.os_init_path)
self.assertEqual("console=tty0 console=ttyS0 console=hvc0",
cfg.os_cmdline)
self.assertIsNone(cfg.os_root)
self.assertEqual(3, len(cfg.devices))
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestFilesys)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestInterface)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestConsole)
self.assertEqual(len(cfg.idmaps), 2)
self.assertIsInstance(cfg.idmaps[0],
vconfig.LibvirtConfigGuestUIDMap)
self.assertIsInstance(cfg.idmaps[1],
vconfig.LibvirtConfigGuestGIDMap)
@mock.patch.object(
host.Host, "is_cpu_control_policy_capable", return_value=True)
def test_get_guest_config_numa_host_instance_fits(self, is_able):
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
flavor = objects.Flavor(memory_mb=1, vcpus=2, root_gb=496,
ephemeral_gb=8128, swap=33550336, name='fake',
extra_specs={})
instance_ref.flavor = flavor
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
with test.nested(
mock.patch.object(host.Host, 'has_min_version',
return_value=True),
mock.patch.object(host.Host, "get_capabilities",
return_value=caps)):
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertIsNone(cfg.cpuset)
self.assertEqual(0, len(cfg.cputune.vcpupin))
self.assertIsNone(cfg.cpu.numa)
@mock.patch('nova.privsep.utils.supports_direct_io',
new=mock.Mock(return_value=True))
@mock.patch.object(
host.Host, "is_cpu_control_policy_capable", return_value=True)
def test_get_guest_config_numa_host_instance_no_fit(self, is_able):
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
flavor = objects.Flavor(memory_mb=4096, vcpus=4, root_gb=496,
ephemeral_gb=8128, swap=33550336, name='fake',
extra_specs={})
instance_ref.flavor = flavor
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
with test.nested(
mock.patch.object(host.Host, "get_capabilities",
return_value=caps),
mock.patch.object(
hardware, 'get_vcpu_pin_set', return_value=set([3])),
mock.patch.object(random, 'choice'),
mock.patch.object(drvr, '_has_numa_support',
return_value=False)
) as (get_host_cap_mock,
get_vcpu_pin_set_mock, choice_mock,
_has_numa_support_mock):
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertFalse(choice_mock.called)
self.assertEqual(set([3]), cfg.cpuset)
self.assertEqual(0, len(cfg.cputune.vcpupin))
self.assertIsNone(cfg.cpu.numa)
def _test_get_guest_memory_backing_config(
self, host_topology, inst_topology, numatune):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
with mock.patch.object(
drvr, "_get_host_numa_topology",
return_value=host_topology):
return drvr._get_guest_memory_backing_config(
inst_topology, numatune, {})
@mock.patch.object(host.Host,
'has_min_version', return_value=True)
def test_get_guest_memory_backing_config_large_success(self, mock_version):
host_topology = objects.NUMATopology(
cells=[
objects.NUMACell(
id=3, cpuset=set([1]), siblings=[set([1])], memory=1024,
mempages=[
objects.NUMAPagesTopology(size_kb=4, total=2000,
used=0),
objects.NUMAPagesTopology(size_kb=2048, total=512,
used=0),
objects.NUMAPagesTopology(size_kb=1048576, total=0,
used=0),
])])
inst_topology = objects.InstanceNUMATopology(cells=[
objects.InstanceNUMACell(
id=3, cpuset=set([0, 1]), memory=1024, pagesize=2048)])
numa_tune = vconfig.LibvirtConfigGuestNUMATune()
numa_tune.memnodes = [vconfig.LibvirtConfigGuestNUMATuneMemNode()]
numa_tune.memnodes[0].cellid = 0
numa_tune.memnodes[0].nodeset = [3]
result = self._test_get_guest_memory_backing_config(
host_topology, inst_topology, numa_tune)
self.assertEqual(1, len(result.hugepages))
self.assertEqual(2048, result.hugepages[0].size_kb)
self.assertEqual([0], result.hugepages[0].nodeset)
@mock.patch.object(host.Host,
'has_min_version', return_value=True)
def test_get_guest_memory_backing_config_smallest(self, mock_version):
host_topology = objects.NUMATopology(
cells=[
objects.NUMACell(
id=3, cpuset=set([1]), siblings=[set([1])], memory=1024,
mempages=[
objects.NUMAPagesTopology(size_kb=4, total=2000,
used=0),
objects.NUMAPagesTopology(size_kb=2048, total=512,
used=0),
objects.NUMAPagesTopology(size_kb=1048576, total=0,
used=0),
])])
inst_topology = objects.InstanceNUMATopology(cells=[
objects.InstanceNUMACell(
id=3, cpuset=set([0, 1]), memory=1024, pagesize=4)])
numa_tune = vconfig.LibvirtConfigGuestNUMATune()
numa_tune.memnodes = [vconfig.LibvirtConfigGuestNUMATuneMemNode()]
numa_tune.memnodes[0].cellid = 0
numa_tune.memnodes[0].nodeset = [3]
result = self._test_get_guest_memory_backing_config(
host_topology, inst_topology, numa_tune)
self.assertIsNone(result)
def test_get_guest_memory_backing_config_realtime(self):
flavor = {"extra_specs": {
"hw:cpu_realtime": "yes",
"hw:cpu_policy": "dedicated"
}}
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
membacking = drvr._get_guest_memory_backing_config(
None, None, flavor)
self.assertTrue(membacking.locked)
self.assertFalse(membacking.sharedpages)
def test_get_guest_memory_backing_config_file_backed(self):
self.flags(file_backed_memory=1024, group="libvirt")
result = self._test_get_guest_memory_backing_config(
None, None, None
)
self.assertTrue(result.sharedaccess)
self.assertTrue(result.filesource)
self.assertTrue(result.allocateimmediate)
@mock.patch.object(fakelibvirt.Connection, 'getVersion')
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion')
def test_get_guest_memory_backing_config_file_backed_discard(self,
mock_lib_version, mock_version):
self.flags(file_backed_memory=1024, group='libvirt')
mock_lib_version.return_value = versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_FILE_BACKED_DISCARD_VERSION)
mock_version.return_value = versionutils.convert_version_to_int(
libvirt_driver.MIN_QEMU_FILE_BACKED_DISCARD_VERSION)
result = self._test_get_guest_memory_backing_config(
None, None, None
)
self.assertTrue(result.discard)
@mock.patch.object(fakelibvirt.Connection, 'getVersion')
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion')
def test_get_guest_memory_backing_config_file_backed_discard_libvirt(self,
mock_lib_version, mock_version):
self.flags(file_backed_memory=1024, group='libvirt')
mock_lib_version.return_value = versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_FILE_BACKED_DISCARD_VERSION) - 1
mock_version.return_value = versionutils.convert_version_to_int(
libvirt_driver.MIN_QEMU_FILE_BACKED_DISCARD_VERSION)
result = self._test_get_guest_memory_backing_config(
None, None, None
)
self.assertFalse(result.discard)
@mock.patch.object(fakelibvirt.Connection, 'getVersion')
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion')
def test_get_guest_memory_backing_config_file_backed_discard_qemu(self,
mock_lib_version, mock_version):
self.flags(file_backed_memory=1024, group='libvirt')
mock_lib_version.return_value = versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_FILE_BACKED_DISCARD_VERSION)
mock_version.return_value = versionutils.convert_version_to_int(
libvirt_driver.MIN_QEMU_FILE_BACKED_DISCARD_VERSION) - 1
result = self._test_get_guest_memory_backing_config(
None, None, None
)
self.assertFalse(result.discard)
def test_get_guest_memory_backing_config_file_backed_hugepages(self):
self.flags(file_backed_memory=1024, group="libvirt")
host_topology = objects.NUMATopology(
cells=[
objects.NUMACell(
id=3, cpuset=set([1]), siblings=[set([1])], memory=1024,
mempages=[
objects.NUMAPagesTopology(size_kb=4, total=2000,
used=0),
objects.NUMAPagesTopology(size_kb=2048, total=512,
used=0),
objects.NUMAPagesTopology(size_kb=1048576, total=0,
used=0),
])])
inst_topology = objects.InstanceNUMATopology(cells=[
objects.InstanceNUMACell(
id=3, cpuset=set([0, 1]), memory=1024, pagesize=2048)])
numa_tune = vconfig.LibvirtConfigGuestNUMATune()
numa_tune.memnodes = [vconfig.LibvirtConfigGuestNUMATuneMemNode()]
numa_tune.memnodes[0].cellid = 0
numa_tune.memnodes[0].nodeset = [3]
self.assertRaises(exception.MemoryPagesUnsupported,
self._test_get_guest_memory_backing_config,
host_topology, inst_topology, numa_tune)
@mock.patch.object(
host.Host, "is_cpu_control_policy_capable", return_value=True)
def test_get_guest_config_numa_host_instance_pci_no_numa_info(
self, is_able):
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
flavor = objects.Flavor(memory_mb=1, vcpus=2, root_gb=496,
ephemeral_gb=8128, swap=33550336, name='fake',
extra_specs={})
instance_ref.flavor = flavor
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology()
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
pci_device_info = dict(test_pci_device.fake_db_dev)
pci_device_info.update(compute_node_id=1,
label='fake',
status=fields.PciDeviceStatus.AVAILABLE,
address='0000:00:00.1',
instance_uuid=None,
request_id=None,
extra_info={},
numa_node=None)
pci_device = objects.PciDevice(**pci_device_info)
with test.nested(
mock.patch.object(host.Host, 'has_min_version',
return_value=True),
mock.patch.object(
host.Host, "get_capabilities", return_value=caps),
mock.patch.object(
hardware, 'get_vcpu_pin_set', return_value=set([3])),
mock.patch.object(host.Host, 'get_online_cpus',
return_value=set(range(8))),
mock.patch.object(pci_manager, "get_instance_pci_devs",
return_value=[pci_device])):
cfg = conn._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(set([3]), cfg.cpuset)
self.assertEqual(0, len(cfg.cputune.vcpupin))
self.assertIsNone(cfg.cpu.numa)
@mock.patch('nova.privsep.utils.supports_direct_io',
new=mock.Mock(return_value=True))
@mock.patch.object(
host.Host, "is_cpu_control_policy_capable", return_value=True)
def test_get_guest_config_numa_host_instance_2pci_no_fit(self, is_able):
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
flavor = objects.Flavor(memory_mb=4096, vcpus=4, root_gb=496,
ephemeral_gb=8128, swap=33550336, name='fake',
extra_specs={})
instance_ref.flavor = flavor
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology()
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
pci_device_info = dict(test_pci_device.fake_db_dev)
pci_device_info.update(compute_node_id=1,
label='fake',
status=fields.PciDeviceStatus.AVAILABLE,
address='0000:00:00.1',
instance_uuid=None,
request_id=None,
extra_info={},
numa_node=1)
pci_device = objects.PciDevice(**pci_device_info)
pci_device_info.update(numa_node=0, address='0000:00:00.2')
pci_device2 = objects.PciDevice(**pci_device_info)
with test.nested(
mock.patch.object(
host.Host, "get_capabilities", return_value=caps),
mock.patch.object(
hardware, 'get_vcpu_pin_set', return_value=set([3])),
mock.patch.object(random, 'choice'),
mock.patch.object(pci_manager, "get_instance_pci_devs",
return_value=[pci_device, pci_device2]),
mock.patch.object(conn, '_has_numa_support',
return_value=False)
) as (get_host_cap_mock,
get_vcpu_pin_set_mock, choice_mock, pci_mock,
_has_numa_support_mock):
cfg = conn._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertFalse(choice_mock.called)
self.assertEqual(set([3]), cfg.cpuset)
self.assertEqual(0, len(cfg.cputune.vcpupin))
self.assertIsNone(cfg.cpu.numa)
@mock.patch.object(fakelibvirt.Connection, 'getType')
@mock.patch.object(fakelibvirt.Connection, 'getVersion')
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion')
@mock.patch.object(host.Host, 'get_capabilities')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_set_host_enabled')
def _test_get_guest_config_numa_unsupported(self, fake_lib_version,
fake_version, fake_type,
fake_arch, exception_class,
pagesize, mock_host,
mock_caps, mock_lib_version,
mock_version, mock_type):
instance_topology = objects.InstanceNUMATopology(
cells=[objects.InstanceNUMACell(
id=0, cpuset=set([0]),
memory=1024, pagesize=pagesize)])
instance_ref = objects.Instance(**self.test_instance)
instance_ref.numa_topology = instance_topology
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
flavor = objects.Flavor(memory_mb=1, vcpus=2, root_gb=496,
ephemeral_gb=8128, swap=33550336, name='fake',
extra_specs={})
instance_ref.flavor = flavor
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fake_arch
caps.host.topology = fakelibvirt.NUMATopology()
mock_type.return_value = fake_type
mock_version.return_value = fake_version
mock_lib_version.return_value = fake_lib_version
mock_caps.return_value = caps
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
self.assertRaises(exception_class,
drvr._get_guest_config,
instance_ref, [],
image_meta, disk_info)
def test_get_guest_config_numa_other_arch_qemu(self):
self.flags(virt_type='kvm', group='libvirt')
self._test_get_guest_config_numa_unsupported(
versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_VERSION),
versionutils.convert_version_to_int(
libvirt_driver.MIN_QEMU_VERSION),
host.HV_DRIVER_QEMU,
fields.Architecture.S390,
exception.NUMATopologyUnsupported,
None)
def test_get_guest_config_numa_xen(self):
self.flags(virt_type='xen', group='libvirt')
self._test_get_guest_config_numa_unsupported(
versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_VERSION),
versionutils.convert_version_to_int((4, 5, 0)),
'XEN',
fields.Architecture.X86_64,
exception.NUMATopologyUnsupported,
None)
@mock.patch.object(
host.Host, "is_cpu_control_policy_capable", return_value=True)
def test_get_guest_config_numa_host_instance_fit_w_cpu_pinset(
self, is_able):
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
flavor = objects.Flavor(memory_mb=1024, vcpus=2, root_gb=496,
ephemeral_gb=8128, swap=33550336, name='fake',
extra_specs={})
instance_ref.flavor = flavor
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology(kb_mem=4194304)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
with test.nested(
mock.patch.object(host.Host, 'has_min_version',
return_value=True),
mock.patch.object(host.Host, "get_capabilities",
return_value=caps),
mock.patch.object(
hardware, 'get_vcpu_pin_set', return_value=set([2, 3])),
mock.patch.object(host.Host, 'get_online_cpus',
return_value=set(range(8)))
) as (has_min_version_mock, get_host_cap_mock,
get_vcpu_pin_set_mock, get_online_cpus_mock):
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
# NOTE(ndipanov): we make sure that pin_set was taken into account
# when choosing viable cells
self.assertEqual(set([2, 3]), cfg.cpuset)
self.assertEqual(0, len(cfg.cputune.vcpupin))
self.assertIsNone(cfg.cpu.numa)
@mock.patch.object(
host.Host, "is_cpu_control_policy_capable", return_value=True)
def test_get_guest_config_non_numa_host_instance_topo(self, is_able):
instance_topology = objects.InstanceNUMATopology(
cells=[objects.InstanceNUMACell(
id=0, cpuset=set([0]), memory=1024),
objects.InstanceNUMACell(
id=1, cpuset=set([2]), memory=1024)])
instance_ref = objects.Instance(**self.test_instance)
instance_ref.numa_topology = instance_topology
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
flavor = objects.Flavor(memory_mb=2048, vcpus=2, root_gb=496,
ephemeral_gb=8128, swap=33550336, name='fake',
extra_specs={})
instance_ref.flavor = flavor
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = None
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
with test.nested(
mock.patch.object(
objects.InstanceNUMATopology, "get_by_instance_uuid",
return_value=instance_topology),
mock.patch.object(host.Host, 'has_min_version',
return_value=True),
mock.patch.object(host.Host, "get_capabilities",
return_value=caps)):
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertIsNone(cfg.cpuset)
self.assertEqual(0, len(cfg.cputune.vcpupin))
self.assertIsNone(cfg.numatune)
self.assertIsNotNone(cfg.cpu.numa)
for instance_cell, numa_cfg_cell in zip(
instance_topology.cells, cfg.cpu.numa.cells):
self.assertEqual(instance_cell.id, numa_cfg_cell.id)
self.assertEqual(instance_cell.cpuset, numa_cfg_cell.cpus)
self.assertEqual(instance_cell.memory * units.Ki,
numa_cfg_cell.memory)
@mock.patch.object(
host.Host, "is_cpu_control_policy_capable", return_value=True)
def test_get_guest_config_numa_host_instance_topo(self, is_able):
instance_topology = objects.InstanceNUMATopology(
cells=[objects.InstanceNUMACell(
id=1, cpuset=set([0, 1]), memory=1024, pagesize=None),
objects.InstanceNUMACell(
id=2, cpuset=set([2, 3]), memory=1024,
pagesize=None)])
instance_ref = objects.Instance(**self.test_instance)
instance_ref.numa_topology = instance_topology
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
flavor = objects.Flavor(memory_mb=2048, vcpus=4, root_gb=496,
ephemeral_gb=8128, swap=33550336, name='fake',
extra_specs={})
instance_ref.flavor = flavor
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
with test.nested(
mock.patch.object(
objects.InstanceNUMATopology, "get_by_instance_uuid",
return_value=instance_topology),
mock.patch.object(host.Host, 'has_min_version',
return_value=True),
mock.patch.object(host.Host, "get_capabilities",
return_value=caps),
mock.patch.object(
hardware, 'get_vcpu_pin_set',
return_value=set([2, 3, 4, 5])),
mock.patch.object(host.Host, 'get_online_cpus',
return_value=set(range(8))),
):
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertIsNone(cfg.cpuset)
# Test that the pinning is correct and limited to allowed only
self.assertEqual(0, cfg.cputune.vcpupin[0].id)
self.assertEqual(set([2, 3]), cfg.cputune.vcpupin[0].cpuset)
self.assertEqual(1, cfg.cputune.vcpupin[1].id)
self.assertEqual(set([2, 3]), cfg.cputune.vcpupin[1].cpuset)
self.assertEqual(2, cfg.cputune.vcpupin[2].id)
self.assertEqual(set([4, 5]), cfg.cputune.vcpupin[2].cpuset)
self.assertEqual(3, cfg.cputune.vcpupin[3].id)
self.assertEqual(set([4, 5]), cfg.cputune.vcpupin[3].cpuset)
self.assertIsNotNone(cfg.cpu.numa)
self.assertIsInstance(cfg.cputune.emulatorpin,
vconfig.LibvirtConfigGuestCPUTuneEmulatorPin)
self.assertEqual(set([2, 3, 4, 5]), cfg.cputune.emulatorpin.cpuset)
for instance_cell, numa_cfg_cell, index in zip(
instance_topology.cells,
cfg.cpu.numa.cells,
range(len(instance_topology.cells))):
self.assertEqual(index, numa_cfg_cell.id)
self.assertEqual(instance_cell.cpuset, numa_cfg_cell.cpus)
self.assertEqual(instance_cell.memory * units.Ki,
numa_cfg_cell.memory)
allnodes = [cell.id for cell in instance_topology.cells]
self.assertEqual(allnodes, cfg.numatune.memory.nodeset)
self.assertEqual("strict", cfg.numatune.memory.mode)
for instance_cell, memnode, index in zip(
instance_topology.cells,
cfg.numatune.memnodes,
range(len(instance_topology.cells))):
self.assertEqual(index, memnode.cellid)
self.assertEqual([instance_cell.id], memnode.nodeset)
self.assertEqual("strict", memnode.mode)
def test_get_guest_config_numa_host_instance_topo_reordered(self):
instance_topology = objects.InstanceNUMATopology(
cells=[objects.InstanceNUMACell(
id=3, cpuset=set([0, 1]), memory=1024),
objects.InstanceNUMACell(
id=0, cpuset=set([2, 3]), memory=1024)])
instance_ref = objects.Instance(**self.test_instance)
instance_ref.numa_topology = instance_topology
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
flavor = objects.Flavor(memory_mb=2048, vcpus=4, root_gb=496,
ephemeral_gb=8128, swap=33550336, name='fake',
extra_specs={})
instance_ref.flavor = flavor
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
with test.nested(
mock.patch.object(
objects.InstanceNUMATopology, "get_by_instance_uuid",
return_value=instance_topology),
mock.patch.object(host.Host, 'has_min_version',
return_value=True),
mock.patch.object(host.Host, "get_capabilities",
return_value=caps),
mock.patch.object(host.Host, 'get_online_cpus',
return_value=set(range(8))),
):
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertIsNone(cfg.cpuset)
# Test that the pinning is correct and limited to allowed only
self.assertEqual(0, cfg.cputune.vcpupin[0].id)
self.assertEqual(set([6, 7]), cfg.cputune.vcpupin[0].cpuset)
self.assertEqual(1, cfg.cputune.vcpupin[1].id)
self.assertEqual(set([6, 7]), cfg.cputune.vcpupin[1].cpuset)
self.assertEqual(2, cfg.cputune.vcpupin[2].id)
self.assertEqual(set([0, 1]), cfg.cputune.vcpupin[2].cpuset)
self.assertEqual(3, cfg.cputune.vcpupin[3].id)
self.assertEqual(set([0, 1]), cfg.cputune.vcpupin[3].cpuset)
self.assertIsNotNone(cfg.cpu.numa)
self.assertIsInstance(cfg.cputune.emulatorpin,
vconfig.LibvirtConfigGuestCPUTuneEmulatorPin)
self.assertEqual(set([0, 1, 6, 7]), cfg.cputune.emulatorpin.cpuset)
for index, (instance_cell, numa_cfg_cell) in enumerate(zip(
instance_topology.cells,
cfg.cpu.numa.cells)):
self.assertEqual(index, numa_cfg_cell.id)
self.assertEqual(instance_cell.cpuset, numa_cfg_cell.cpus)
self.assertEqual(instance_cell.memory * units.Ki,
numa_cfg_cell.memory)
self.assertIsNone(numa_cfg_cell.memAccess)
allnodes = set([cell.id for cell in instance_topology.cells])
self.assertEqual(allnodes, set(cfg.numatune.memory.nodeset))
self.assertEqual("strict", cfg.numatune.memory.mode)
for index, (instance_cell, memnode) in enumerate(zip(
instance_topology.cells,
cfg.numatune.memnodes)):
self.assertEqual(index, memnode.cellid)
self.assertEqual([instance_cell.id], memnode.nodeset)
self.assertEqual("strict", memnode.mode)
def test_get_guest_config_numa_host_instance_topo_cpu_pinning(self):
instance_topology = objects.InstanceNUMATopology(
cells=[objects.InstanceNUMACell(
id=1, cpuset=set([0, 1]), memory=1024,
cpu_pinning={0: 24, 1: 25}),
objects.InstanceNUMACell(
id=0, cpuset=set([2, 3]), memory=1024,
cpu_pinning={2: 0, 3: 1})])
instance_ref = objects.Instance(**self.test_instance)
instance_ref.numa_topology = instance_topology
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
flavor = objects.Flavor(memory_mb=2048, vcpus=2, root_gb=496,
ephemeral_gb=8128, swap=33550336, name='fake',
extra_specs={})
instance_ref.flavor = flavor
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology(
sockets_per_cell=4, cores_per_socket=3, threads_per_core=2)
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
with test.nested(
mock.patch.object(
objects.InstanceNUMATopology, "get_by_instance_uuid",
return_value=instance_topology),
mock.patch.object(host.Host, 'has_min_version',
return_value=True),
mock.patch.object(host.Host, "get_capabilities",
return_value=caps),
mock.patch.object(host.Host, 'get_online_cpus',
return_value=set(range(8))),
):
cfg = conn._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertIsNone(cfg.cpuset)
# Test that the pinning is correct and limited to allowed only
self.assertEqual(0, cfg.cputune.vcpupin[0].id)
self.assertEqual(set([24]), cfg.cputune.vcpupin[0].cpuset)
self.assertEqual(1, cfg.cputune.vcpupin[1].id)
self.assertEqual(set([25]), cfg.cputune.vcpupin[1].cpuset)
self.assertEqual(2, cfg.cputune.vcpupin[2].id)
self.assertEqual(set([0]), cfg.cputune.vcpupin[2].cpuset)
self.assertEqual(3, cfg.cputune.vcpupin[3].id)
self.assertEqual(set([1]), cfg.cputune.vcpupin[3].cpuset)
self.assertIsNotNone(cfg.cpu.numa)
# Emulator must be pinned to union of cfg.cputune.vcpupin[*].cpuset
self.assertIsInstance(cfg.cputune.emulatorpin,
vconfig.LibvirtConfigGuestCPUTuneEmulatorPin)
self.assertEqual(set([0, 1, 24, 25]),
cfg.cputune.emulatorpin.cpuset)
for i, (instance_cell, numa_cfg_cell) in enumerate(zip(
instance_topology.cells, cfg.cpu.numa.cells)):
self.assertEqual(i, numa_cfg_cell.id)
self.assertEqual(instance_cell.cpuset, numa_cfg_cell.cpus)
self.assertEqual(instance_cell.memory * units.Ki,
numa_cfg_cell.memory)
self.assertIsNone(numa_cfg_cell.memAccess)
allnodes = set([cell.id for cell in instance_topology.cells])
self.assertEqual(allnodes, set(cfg.numatune.memory.nodeset))
self.assertEqual("strict", cfg.numatune.memory.mode)
for i, (instance_cell, memnode) in enumerate(zip(
instance_topology.cells, cfg.numatune.memnodes)):
self.assertEqual(i, memnode.cellid)
self.assertEqual([instance_cell.id], memnode.nodeset)
self.assertEqual("strict", memnode.mode)
def test_get_guest_config_numa_host_mempages_shared(self):
instance_topology = objects.InstanceNUMATopology(
cells=[
objects.InstanceNUMACell(
id=1, cpuset=set([0, 1]),
memory=1024, pagesize=2048),
objects.InstanceNUMACell(
id=2, cpuset=set([2, 3]),
memory=1024, pagesize=2048)])
instance_ref = objects.Instance(**self.test_instance)
instance_ref.numa_topology = instance_topology
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
flavor = objects.Flavor(memory_mb=2048, vcpus=4, root_gb=496,
ephemeral_gb=8128, swap=33550336, name='fake',
extra_specs={})
instance_ref.flavor = flavor
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology()
for i, cell in enumerate(caps.host.topology.cells):
cell.mempages = fakelibvirt.create_mempages(
[(4, 1024 * i), (2048, i)])
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
with test.nested(
mock.patch.object(
objects.InstanceNUMATopology, "get_by_instance_uuid",
return_value=instance_topology),
mock.patch.object(host.Host, 'has_min_version',
return_value=True),
mock.patch.object(host.Host, "get_capabilities",
return_value=caps),
mock.patch.object(
hardware, 'get_vcpu_pin_set',
return_value=set([2, 3, 4, 5])),
mock.patch.object(host.Host, 'get_online_cpus',
return_value=set(range(8))),
):
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
for instance_cell, numa_cfg_cell, index in zip(
instance_topology.cells,
cfg.cpu.numa.cells,
range(len(instance_topology.cells))):
self.assertEqual(index, numa_cfg_cell.id)
self.assertEqual(instance_cell.cpuset, numa_cfg_cell.cpus)
self.assertEqual(instance_cell.memory * units.Ki,
numa_cfg_cell.memory)
self.assertEqual("shared", numa_cfg_cell.memAccess)
allnodes = [cell.id for cell in instance_topology.cells]
self.assertEqual(allnodes, cfg.numatune.memory.nodeset)
self.assertEqual("strict", cfg.numatune.memory.mode)
for instance_cell, memnode, index in zip(
instance_topology.cells,
cfg.numatune.memnodes,
range(len(instance_topology.cells))):
self.assertEqual(index, memnode.cellid)
self.assertEqual([instance_cell.id], memnode.nodeset)
self.assertEqual("strict", memnode.mode)
self.assertEqual(0, len(cfg.cputune.vcpusched))
self.assertEqual(set([2, 3, 4, 5]), cfg.cputune.emulatorpin.cpuset)
def test_get_guest_config_numa_host_instance_cpu_pinning_realtime(self):
instance_topology = objects.InstanceNUMATopology(
cells=[
objects.InstanceNUMACell(
id=2, cpuset=set([0, 1]),
memory=1024, pagesize=2048),
objects.InstanceNUMACell(
id=3, cpuset=set([2, 3]),
memory=1024, pagesize=2048)])
instance_ref = objects.Instance(**self.test_instance)
instance_ref.numa_topology = instance_topology
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
flavor = objects.Flavor(memory_mb=2048, vcpus=4, root_gb=496,
ephemeral_gb=8128, swap=33550336, name='fake',
extra_specs={
"hw:cpu_realtime": "yes",
"hw:cpu_policy": "dedicated",
"hw:cpu_realtime_mask": "^0-1"
})
instance_ref.flavor = flavor
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology()
for i, cell in enumerate(caps.host.topology.cells):
cell.mempages = fakelibvirt.create_mempages(
[(4, 1024 * i), (2048, i)])
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
with test.nested(
mock.patch.object(
objects.InstanceNUMATopology, "get_by_instance_uuid",
return_value=instance_topology),
mock.patch.object(host.Host, 'has_min_version',
return_value=True),
mock.patch.object(host.Host, "get_capabilities",
return_value=caps),
mock.patch.object(
hardware, 'get_vcpu_pin_set',
return_value=set([4, 5, 6, 7])),
mock.patch.object(host.Host, 'get_online_cpus',
return_value=set(range(8))),
):
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
for instance_cell, numa_cfg_cell, index in zip(
instance_topology.cells,
cfg.cpu.numa.cells,
range(len(instance_topology.cells))):
self.assertEqual(index, numa_cfg_cell.id)
self.assertEqual(instance_cell.cpuset, numa_cfg_cell.cpus)
self.assertEqual(instance_cell.memory * units.Ki,
numa_cfg_cell.memory)
self.assertEqual("shared", numa_cfg_cell.memAccess)
allnodes = [cell.id for cell in instance_topology.cells]
self.assertEqual(allnodes, cfg.numatune.memory.nodeset)
self.assertEqual("strict", cfg.numatune.memory.mode)
for instance_cell, memnode, index in zip(
instance_topology.cells,
cfg.numatune.memnodes,
range(len(instance_topology.cells))):
self.assertEqual(index, memnode.cellid)
self.assertEqual([instance_cell.id], memnode.nodeset)
self.assertEqual("strict", memnode.mode)
self.assertEqual(1, len(cfg.cputune.vcpusched))
self.assertEqual("fifo", cfg.cputune.vcpusched[0].scheduler)
# Ensure vCPUs 0-1 are pinned on host CPUs 4-5 and 2-3 are
# set on host CPUs 6-7 according the realtime mask ^0-1
self.assertEqual(set([4, 5]), cfg.cputune.vcpupin[0].cpuset)
self.assertEqual(set([4, 5]), cfg.cputune.vcpupin[1].cpuset)
self.assertEqual(set([6, 7]), cfg.cputune.vcpupin[2].cpuset)
self.assertEqual(set([6, 7]), cfg.cputune.vcpupin[3].cpuset)
# We ensure that emulator threads are pinned on host CPUs
# 4-5 which are "normal" vCPUs
self.assertEqual(set([4, 5]), cfg.cputune.emulatorpin.cpuset)
# We ensure that the vCPUs RT are 2-3 set to the host CPUs
# which are 6, 7
self.assertEqual(set([2, 3]), cfg.cputune.vcpusched[0].vcpus)
def test_get_guest_config_numa_host_instance_isolated_emulthreads(self):
instance_topology = objects.InstanceNUMATopology(
emulator_threads_policy=(
fields.CPUEmulatorThreadsPolicy.ISOLATE),
cells=[
objects.InstanceNUMACell(
id=0, cpuset=set([0, 1]),
memory=1024, pagesize=2048,
cpu_policy=fields.CPUAllocationPolicy.DEDICATED,
cpu_pinning={0: 4, 1: 5},
cpuset_reserved=set([6])),
objects.InstanceNUMACell(
id=1, cpuset=set([2, 3]),
memory=1024, pagesize=2048,
cpu_policy=fields.CPUAllocationPolicy.DEDICATED,
cpu_pinning={2: 7, 3: 8})])
instance_ref = objects.Instance(**self.test_instance)
instance_ref.numa_topology = instance_topology
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = "x86_64"
caps.host.topology = fakelibvirt.NUMATopology()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref, image_meta)
with test.nested(
mock.patch.object(
objects.InstanceNUMATopology, "get_by_instance_uuid",
return_value=instance_topology),
mock.patch.object(host.Host, 'has_min_version',
return_value=True),
mock.patch.object(host.Host, "get_capabilities",
return_value=caps),
mock.patch.object(
hardware, 'get_vcpu_pin_set',
return_value=set([4, 5, 6, 7, 8])),
mock.patch.object(host.Host, 'get_online_cpus',
return_value=set(range(10))),
):
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(set([6]), cfg.cputune.emulatorpin.cpuset)
self.assertEqual(set([4]), cfg.cputune.vcpupin[0].cpuset)
self.assertEqual(set([5]), cfg.cputune.vcpupin[1].cpuset)
self.assertEqual(set([7]), cfg.cputune.vcpupin[2].cpuset)
self.assertEqual(set([8]), cfg.cputune.vcpupin[3].cpuset)
def test_get_guest_config_numa_host_instance_shared_emulthreads_err(
self):
self.flags(cpu_shared_set="48-50", group="compute")
instance_topology = objects.InstanceNUMATopology(
emulator_threads_policy=(
fields.CPUEmulatorThreadsPolicy.SHARE),
cells=[
objects.InstanceNUMACell(
id=0, cpuset=set([0, 1]),
memory=1024, pagesize=2048,
cpu_policy=fields.CPUAllocationPolicy.DEDICATED,
cpu_pinning={0: 4, 1: 5},
cpuset_reserved=set([6])),
objects.InstanceNUMACell(
id=1, cpuset=set([2, 3]),
memory=1024, pagesize=2048,
cpu_policy=fields.CPUAllocationPolicy.DEDICATED,
cpu_pinning={2: 7, 3: 8})])
instance_ref = objects.Instance(**self.test_instance)
instance_ref.numa_topology = instance_topology
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = "x86_64"
caps.host.topology = fakelibvirt.NUMATopology()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref, image_meta)
with test.nested(
mock.patch.object(
objects.InstanceNUMATopology, "get_by_instance_uuid",
return_value=instance_topology),
mock.patch.object(host.Host, 'has_min_version',
return_value=True),
mock.patch.object(host.Host, "get_capabilities",
return_value=caps),
mock.patch.object(
hardware, 'get_vcpu_pin_set',
return_value=set([4, 5, 6, 7, 8])),
mock.patch.object(host.Host, 'get_online_cpus',
return_value=set(range(10))),
):
# pCPUs [48-50] are not online
self.assertRaises(exception.Invalid, drvr._get_guest_config,
instance_ref, [], image_meta, disk_info)
def test_get_guest_config_numa_host_instance_shared_emulator_threads(
self):
self.flags(cpu_shared_set="48-50", group="compute")
instance_topology = objects.InstanceNUMATopology(
emulator_threads_policy=(
fields.CPUEmulatorThreadsPolicy.SHARE),
cells=[
objects.InstanceNUMACell(
id=0, cpuset=set([0, 1]),
memory=1024, pagesize=2048,
cpu_policy=fields.CPUAllocationPolicy.DEDICATED,
cpu_pinning={0: 4, 1: 5},
cpuset_reserved=set([6])),
objects.InstanceNUMACell(
id=1, cpuset=set([2, 3]),
memory=1024, pagesize=2048,
cpu_policy=fields.CPUAllocationPolicy.DEDICATED,
cpu_pinning={2: 7, 3: 8})])
instance_ref = objects.Instance(**self.test_instance)
instance_ref.numa_topology = instance_topology
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = "x86_64"
caps.host.topology = fakelibvirt.NUMATopology()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref, image_meta)
with test.nested(
mock.patch.object(
objects.InstanceNUMATopology, "get_by_instance_uuid",
return_value=instance_topology),
mock.patch.object(host.Host, 'has_min_version',
return_value=True),
mock.patch.object(host.Host, "get_capabilities",
return_value=caps),
mock.patch.object(
hardware, 'get_vcpu_pin_set',
return_value=set([4, 5, 6, 7, 8])),
mock.patch.object(host.Host, 'get_online_cpus',
return_value=set(list(range(10)) +
[48, 50])),
):
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
# cpu_shared_set is configured with [48, 49, 50] but only
# [48, 50] are online.
self.assertEqual(set([48, 50]), cfg.cputune.emulatorpin.cpuset)
self.assertEqual(set([4]), cfg.cputune.vcpupin[0].cpuset)
self.assertEqual(set([5]), cfg.cputune.vcpupin[1].cpuset)
self.assertEqual(set([7]), cfg.cputune.vcpupin[2].cpuset)
self.assertEqual(set([8]), cfg.cputune.vcpupin[3].cpuset)
def test_get_cpu_numa_config_from_instance(self):
topology = objects.InstanceNUMATopology(cells=[
objects.InstanceNUMACell(id=0, cpuset=set([1, 2]), memory=128),
objects.InstanceNUMACell(id=1, cpuset=set([3, 4]), memory=128),
])
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
conf = drvr._get_cpu_numa_config_from_instance(topology, True)
self.assertIsInstance(conf, vconfig.LibvirtConfigGuestCPUNUMA)
self.assertEqual(0, conf.cells[0].id)
self.assertEqual(set([1, 2]), conf.cells[0].cpus)
self.assertEqual(131072, conf.cells[0].memory)
self.assertEqual("shared", conf.cells[0].memAccess)
self.assertEqual(1, conf.cells[1].id)
self.assertEqual(set([3, 4]), conf.cells[1].cpus)
self.assertEqual(131072, conf.cells[1].memory)
self.assertEqual("shared", conf.cells[1].memAccess)
def test_get_cpu_numa_config_from_instance_none(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
conf = drvr._get_cpu_numa_config_from_instance(None, False)
self.assertIsNone(conf)
@mock.patch.object(libvirt_driver.LibvirtDriver, "_has_numa_support",
return_value=True)
def test_get_memnode_numa_config_from_instance(self, mock_numa):
instance_topology = objects.InstanceNUMATopology(cells=[
objects.InstanceNUMACell(id=0, cpuset=set([1, 2]), memory=128),
objects.InstanceNUMACell(id=1, cpuset=set([3, 4]), memory=128),
objects.InstanceNUMACell(id=16, cpuset=set([5, 6]), memory=128)
])
host_topology = objects.NUMATopology(
cells=[
objects.NUMACell(
id=0, cpuset=set([1, 2]), siblings=[set([1]), set([2])],
memory=1024, mempages=[]),
objects.NUMACell(
id=1, cpuset=set([3, 4]), siblings=[set([3]), set([4])],
memory=1024, mempages=[]),
objects.NUMACell(
id=16, cpuset=set([5, 6]), siblings=[set([5]), set([6])],
memory=1024, mempages=[])])
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
with test.nested(
mock.patch.object(drvr, "_get_host_numa_topology",
return_value=host_topology)):
guest_numa_config = drvr._get_guest_numa_config(instance_topology,
flavor={}, allowed_cpus=[1, 2, 3, 4, 5, 6], image_meta={})
self.assertEqual(2, guest_numa_config.numatune.memnodes[2].cellid)
self.assertEqual([16],
guest_numa_config.numatune.memnodes[2].nodeset)
self.assertEqual(set([5, 6]),
guest_numa_config.numaconfig.cells[2].cpus)
@mock.patch.object(libvirt_driver.LibvirtDriver, "_has_numa_support",
return_value=True)
@mock.patch.object(host.Host, "get_capabilities")
def test_does_not_want_hugepages(self, mock_caps, mock_numa):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_topology = objects.InstanceNUMATopology(
cells=[
objects.InstanceNUMACell(
id=1, cpuset=set([0, 1]),
memory=1024, pagesize=4),
objects.InstanceNUMACell(
id=2, cpuset=set([2, 3]),
memory=1024, pagesize=4)])
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology()
mock_caps.return_value = caps
host_topology = drvr._get_host_numa_topology()
self.assertFalse(drvr._wants_hugepages(None, None))
self.assertFalse(drvr._wants_hugepages(host_topology, None))
self.assertFalse(drvr._wants_hugepages(None, instance_topology))
self.assertFalse(drvr._wants_hugepages(host_topology,
instance_topology))
@mock.patch.object(libvirt_driver.LibvirtDriver, "_has_numa_support",
return_value=True)
@mock.patch.object(host.Host, "get_capabilities")
def test_does_want_hugepages(self, mock_caps, mock_numa):
for arch in [fields.Architecture.I686,
fields.Architecture.X86_64,
fields.Architecture.AARCH64,
fields.Architecture.PPC64LE,
fields.Architecture.PPC64]:
self._test_does_want_hugepages(mock_caps, mock_numa, arch)
def _test_does_want_hugepages(self, mock_caps, mock_numa, architecture):
self.flags(reserved_huge_pages=[
{'node': 0, 'size': 2048, 'count': 128},
{'node': 1, 'size': 2048, 'count': 1},
{'node': 3, 'size': 2048, 'count': 64}])
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_topology = objects.InstanceNUMATopology(
cells=[
objects.InstanceNUMACell(
id=1, cpuset=set([0, 1]),
memory=1024, pagesize=2048),
objects.InstanceNUMACell(
id=2, cpuset=set([2, 3]),
memory=1024, pagesize=2048)])
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = architecture
caps.host.topology = fakelibvirt.NUMATopology()
for i, cell in enumerate(caps.host.topology.cells):
cell.mempages = fakelibvirt.create_mempages(
[(4, 1024 * i), (2048, i)])
mock_caps.return_value = caps
host_topology = drvr._get_host_numa_topology()
self.assertEqual(128, host_topology.cells[0].mempages[1].reserved)
self.assertEqual(1, host_topology.cells[1].mempages[1].reserved)
self.assertEqual(0, host_topology.cells[2].mempages[1].reserved)
self.assertEqual(64, host_topology.cells[3].mempages[1].reserved)
self.assertTrue(drvr._wants_hugepages(host_topology,
instance_topology))
def test_get_guest_config_clock(self):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
hpet_map = {
fields.Architecture.X86_64: True,
fields.Architecture.I686: True,
fields.Architecture.PPC: False,
fields.Architecture.PPC64: False,
fields.Architecture.ARMV7: False,
fields.Architecture.AARCH64: False,
}
for guestarch, expect_hpet in hpet_map.items():
with mock.patch.object(libvirt_driver.libvirt_utils,
'get_arch',
return_value=guestarch):
cfg = drvr._get_guest_config(instance_ref, [],
image_meta,
disk_info)
self.assertIsInstance(cfg.clock,
vconfig.LibvirtConfigGuestClock)
self.assertEqual(cfg.clock.offset, "utc")
self.assertIsInstance(cfg.clock.timers[0],
vconfig.LibvirtConfigGuestTimer)
self.assertIsInstance(cfg.clock.timers[1],
vconfig.LibvirtConfigGuestTimer)
self.assertEqual(cfg.clock.timers[0].name, "pit")
self.assertEqual(cfg.clock.timers[0].tickpolicy,
"delay")
self.assertEqual(cfg.clock.timers[1].name, "rtc")
self.assertEqual(cfg.clock.timers[1].tickpolicy,
"catchup")
if expect_hpet:
self.assertEqual(3, len(cfg.clock.timers))
self.assertIsInstance(cfg.clock.timers[2],
vconfig.LibvirtConfigGuestTimer)
self.assertEqual('hpet', cfg.clock.timers[2].name)
self.assertFalse(cfg.clock.timers[2].present)
else:
self.assertEqual(2, len(cfg.clock.timers))
def test_get_guest_config_clock_hpet_false(self):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_time_hpet": "false"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
hpet_map = {
fields.Architecture.X86_64: True,
fields.Architecture.I686: True,
fields.Architecture.PPC: False,
fields.Architecture.PPC64: False,
fields.Architecture.ARMV7: False,
fields.Architecture.AARCH64: False,
}
for guestarch, expect_hpet in hpet_map.items():
with mock.patch.object(libvirt_driver.libvirt_utils,
'get_arch',
return_value=guestarch):
cfg = drvr._get_guest_config(instance_ref, [],
image_meta,
disk_info)
self.assertIsInstance(cfg.clock,
vconfig.LibvirtConfigGuestClock)
self.assertEqual(cfg.clock.offset, "utc")
self.assertIsInstance(cfg.clock.timers[0],
vconfig.LibvirtConfigGuestTimer)
self.assertIsInstance(cfg.clock.timers[1],
vconfig.LibvirtConfigGuestTimer)
self.assertEqual(cfg.clock.timers[0].name, "pit")
self.assertEqual(cfg.clock.timers[0].tickpolicy,
"delay")
self.assertEqual(cfg.clock.timers[1].name, "rtc")
self.assertEqual(cfg.clock.timers[1].tickpolicy,
"catchup")
if expect_hpet:
self.assertEqual(3, len(cfg.clock.timers))
self.assertIsInstance(cfg.clock.timers[2],
vconfig.LibvirtConfigGuestTimer)
self.assertEqual('hpet', cfg.clock.timers[2].name)
self.assertFalse(cfg.clock.timers[2].present)
else:
self.assertEqual(2, len(cfg.clock.timers))
def test_get_guest_config_clock_hpet_true(self):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"id": uuids.image_id,
"disk_format": "raw",
"properties": {"hw_time_hpet": "true"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
hpet_map = {
fields.Architecture.X86_64: True,
fields.Architecture.I686: True,
fields.Architecture.PPC: False,
fields.Architecture.PPC64: False,
fields.Architecture.ARMV7: False,
fields.Architecture.AARCH64: False,
}
for guestarch, expect_hpet in hpet_map.items():
with mock.patch.object(libvirt_driver.libvirt_utils,
'get_arch',
return_value=guestarch):
cfg = drvr._get_guest_config(instance_ref, [],
image_meta,
disk_info)
self.assertIsInstance(cfg.clock,
vconfig.LibvirtConfigGuestClock)
self.assertEqual(cfg.clock.offset, "utc")
self.assertIsInstance(cfg.clock.timers[0],
vconfig.LibvirtConfigGuestTimer)
self.assertIsInstance(cfg.clock.timers[1],
vconfig.LibvirtConfigGuestTimer)
self.assertEqual(cfg.clock.timers[0].name, "pit")
self.assertEqual(cfg.clock.timers[0].tickpolicy,
"delay")
self.assertEqual(cfg.clock.timers[1].name, "rtc")
self.assertEqual(cfg.clock.timers[1].tickpolicy,
"catchup")
if expect_hpet:
self.assertEqual(3, len(cfg.clock.timers))
self.assertIsInstance(cfg.clock.timers[2],
vconfig.LibvirtConfigGuestTimer)
self.assertEqual('hpet', cfg.clock.timers[2].name)
self.assertTrue(cfg.clock.timers[2].present)
else:
self.assertEqual(2, len(cfg.clock.timers))
def test_get_guest_config_clock_hpet_invalid(self):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_time_hpet": "blah"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
hpet_map = {
fields.Architecture.X86_64: True,
fields.Architecture.I686: True,
fields.Architecture.PPC: False,
fields.Architecture.PPC64: False,
fields.Architecture.ARMV7: False,
fields.Architecture.AARCH64: False,
}
for guestarch, expect_hpet in hpet_map.items():
with mock.patch.object(libvirt_driver.libvirt_utils,
'get_arch',
return_value=guestarch):
cfg = drvr._get_guest_config(instance_ref, [],
image_meta,
disk_info)
self.assertIsInstance(cfg.clock,
vconfig.LibvirtConfigGuestClock)
self.assertEqual(cfg.clock.offset, "utc")
self.assertIsInstance(cfg.clock.timers[0],
vconfig.LibvirtConfigGuestTimer)
self.assertIsInstance(cfg.clock.timers[1],
vconfig.LibvirtConfigGuestTimer)
self.assertEqual(cfg.clock.timers[0].name, "pit")
self.assertEqual(cfg.clock.timers[0].tickpolicy,
"delay")
self.assertEqual(cfg.clock.timers[1].name, "rtc")
self.assertEqual(cfg.clock.timers[1].tickpolicy,
"catchup")
if expect_hpet:
self.assertEqual(3, len(cfg.clock.timers))
self.assertIsInstance(cfg.clock.timers[2],
vconfig.LibvirtConfigGuestTimer)
self.assertEqual('hpet', cfg.clock.timers[2].name)
# a non-boolean value of hw_time_hpet should be treated as
# False
self.assertFalse(cfg.clock.timers[2].present)
else:
self.assertEqual(2, len(cfg.clock.timers))
@mock.patch.object(libvirt_utils, 'get_arch')
def test_get_guest_config_windows_timer(self, mock_get_arch):
mock_get_arch.return_value = fields.Architecture.I686
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref['os_type'] = 'windows'
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertIsInstance(cfg.clock,
vconfig.LibvirtConfigGuestClock)
self.assertEqual(cfg.clock.offset, "localtime")
self.assertEqual(4, len(cfg.clock.timers), cfg.clock.timers)
self.assertEqual("pit", cfg.clock.timers[0].name)
self.assertEqual("rtc", cfg.clock.timers[1].name)
self.assertEqual("hpet", cfg.clock.timers[2].name)
self.assertFalse(cfg.clock.timers[2].present)
self.assertEqual("hypervclock", cfg.clock.timers[3].name)
self.assertTrue(cfg.clock.timers[3].present)
self.assertEqual(3, len(cfg.features))
self.assertIsInstance(cfg.features[0],
vconfig.LibvirtConfigGuestFeatureACPI)
self.assertIsInstance(cfg.features[1],
vconfig.LibvirtConfigGuestFeatureAPIC)
self.assertIsInstance(cfg.features[2],
vconfig.LibvirtConfigGuestFeatureHyperV)
@mock.patch.object(host.Host, 'has_min_version',
new=mock.Mock(return_value=True))
def _test_get_guest_config_windows_hyperv(
self, flavor=None, image_meta=None, hvid_hidden=False):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref['os_type'] = 'windows'
if flavor is not None:
instance_ref.flavor = flavor
if image_meta is None:
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertIsInstance(cfg.clock,
vconfig.LibvirtConfigGuestClock)
self.assertEqual(cfg.clock.offset, "localtime")
num_features = 4 if hvid_hidden else 3
self.assertEqual(num_features, len(cfg.features))
self.assertIsInstance(cfg.features[0],
vconfig.LibvirtConfigGuestFeatureACPI)
self.assertIsInstance(cfg.features[1],
vconfig.LibvirtConfigGuestFeatureAPIC)
self.assertIsInstance(cfg.features[2],
vconfig.LibvirtConfigGuestFeatureHyperV)
if hvid_hidden:
self.assertIsInstance(cfg.features[3],
vconfig.LibvirtConfigGuestFeatureKvmHidden)
self.assertTrue(cfg.features[2].relaxed)
self.assertTrue(cfg.features[2].spinlocks)
self.assertEqual(8191, cfg.features[2].spinlock_retries)
self.assertTrue(cfg.features[2].vapic)
self.assertEqual(hvid_hidden, cfg.features[2].vendorid_spoof)
def test_get_guest_config_windows_hyperv_feature2(self):
self._test_get_guest_config_windows_hyperv()
def test_get_guest_config_windows_hyperv_all_hide_flv(self):
# Similar to test_get_guest_config_windows_hyperv_feature2
# but also test hiding the HyperV signature with the flavor
# extra_spec "hide_hypervisor_id"
flavor_hide_id = fake_flavor.fake_flavor_obj(self.context,
extra_specs={"hide_hypervisor_id": "true"},
expected_attrs={"extra_specs"})
# this works for kvm (the default, tested below) and qemu
self.flags(virt_type='qemu', group='libvirt')
self._test_get_guest_config_windows_hyperv(
flavor=flavor_hide_id, hvid_hidden=True)
def test_get_guest_config_windows_hyperv_all_hide_img(self):
# Similar to test_get_guest_config_windows_hyperv_feature2
# but also test hiding the HyperV signature with the image
# property "img_hide_hypervisor_id"
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"img_hide_hypervisor_id": "true"}})
self._test_get_guest_config_windows_hyperv(
image_meta=image_meta, hvid_hidden=True)
def test_get_guest_config_windows_hyperv_all_hide_flv_img(self):
# Similar to test_get_guest_config_windows_hyperv_feature2
# but also test hiding the HyperV signature with both the flavor
# extra_spec "hide_hypervisor_id" and the image property
# "img_hide_hypervisor_id"
flavor_hide_id = fake_flavor.fake_flavor_obj(self.context,
extra_specs={"hide_hypervisor_id": "true"},
expected_attrs={"extra_specs"})
self.flags(virt_type='qemu', group='libvirt')
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"img_hide_hypervisor_id": "true"}})
self._test_get_guest_config_windows_hyperv(
flavor=flavor_hide_id, image_meta=image_meta, hvid_hidden=True)
def test_get_guest_config_with_two_nics(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 2),
image_meta, disk_info)
self.assertEqual(2, len(cfg.features))
self.assertIsInstance(cfg.features[0],
vconfig.LibvirtConfigGuestFeatureACPI)
self.assertIsInstance(cfg.features[1],
vconfig.LibvirtConfigGuestFeatureAPIC)
self.assertEqual(cfg.memory, instance_ref.flavor.memory_mb * units.Ki)
self.assertEqual(cfg.vcpus, instance_ref.flavor.vcpus)
self.assertEqual(cfg.os_type, fields.VMMode.HVM)
self.assertEqual(cfg.os_boot_dev, ["hd"])
self.assertIsNone(cfg.os_root)
self.assertEqual(len(cfg.devices), 9)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestInterface)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestInterface)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestInput)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[7],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[8],
vconfig.LibvirtConfigMemoryBalloon)
def test_get_guest_config_bug_1118829(self):
self.flags(virt_type='uml', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
disk_info = {'disk_bus': 'virtio',
'cdrom_bus': 'ide',
'mapping': {u'vda': {'bus': 'virtio',
'type': 'disk',
'dev': u'vda'},
'root': {'bus': 'virtio',
'type': 'disk',
'dev': 'vda'}}}
# NOTE(jdg): For this specific test leave this blank
# This will exercise the failed code path still,
# and won't require fakes and stubs of the iscsi discovery
block_device_info = {}
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
drvr._get_guest_config(instance_ref, [], image_meta, disk_info,
None, block_device_info)
self.assertEqual(instance_ref['root_device_name'], '/dev/vda')
def test_get_guest_config_with_root_device_name(self):
self.flags(virt_type='uml', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
block_device_info = {'root_device_name': '/dev/vdb'}
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta,
block_device_info)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info,
None, block_device_info)
self.assertEqual(0, len(cfg.features))
self.assertEqual(cfg.memory, instance_ref.flavor.memory_mb * units.Ki)
self.assertEqual(cfg.vcpus, instance_ref.flavor.vcpus)
self.assertEqual(cfg.os_type, "uml")
self.assertEqual(cfg.os_boot_dev, [])
self.assertEqual(cfg.os_root, '/dev/vdb')
self.assertEqual(len(cfg.devices), 3)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestConsole)
def test_has_uefi_support_not_supported_arch(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self._stub_host_capabilities_cpu_arch(fields.Architecture.ALPHA)
self.assertFalse(drvr._has_uefi_support())
@mock.patch('os.path.exists', return_value=False)
def test_has_uefi_support_with_no_loader_existed(self, mock_exist):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertFalse(drvr._has_uefi_support())
@mock.patch('os.path.exists', return_value=True)
def test_has_uefi_support(self, mock_has_version):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self._stub_host_capabilities_cpu_arch(fields.Architecture.X86_64)
with mock.patch.object(drvr._host,
'has_min_version', return_value=True):
self.assertTrue(drvr._has_uefi_support())
def test_get_guest_config_with_uefi(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_firmware_type": "uefi"}})
instance_ref = objects.Instance(**self.test_instance)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
with mock.patch.object(drvr, "_has_uefi_support",
return_value=True) as mock_support:
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
mock_support.assert_called_once_with()
self.assertEqual(cfg.os_loader_type, "pflash")
def test_get_guest_config_with_block_device(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
conn_info = {'driver_volume_type': 'fake', 'data': {}}
bdms = block_device_obj.block_device_make_list_from_dicts(
self.context, [
fake_block_device.FakeDbBlockDeviceDict(
{'id': 1,
'source_type': 'volume', 'destination_type': 'volume',
'device_name': '/dev/vdc'}),
fake_block_device.FakeDbBlockDeviceDict(
{'id': 2,
'source_type': 'volume', 'destination_type': 'volume',
'device_name': '/dev/vdd'}),
]
)
info = {'block_device_mapping': driver_block_device.convert_volumes(
bdms
)}
info['block_device_mapping'][0]['connection_info'] = conn_info
info['block_device_mapping'][1]['connection_info'] = conn_info
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta,
info)
with mock.patch.object(
driver_block_device.DriverVolumeBlockDevice, 'save'
) as mock_save:
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info,
None, info)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestDisk)
self.assertEqual(cfg.devices[2].target_dev, 'vdc')
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestDisk)
self.assertEqual(cfg.devices[3].target_dev, 'vdd')
mock_save.assert_called_with()
def test_get_guest_config_lxc_with_attached_volume(self):
self.flags(virt_type='lxc', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
conn_info = {'driver_volume_type': 'fake', 'data': {}}
bdms = block_device_obj.block_device_make_list_from_dicts(
self.context, [
fake_block_device.FakeDbBlockDeviceDict(
{'id': 1,
'source_type': 'volume', 'destination_type': 'volume',
'boot_index': 0}),
fake_block_device.FakeDbBlockDeviceDict(
{'id': 2,
'source_type': 'volume', 'destination_type': 'volume',
}),
fake_block_device.FakeDbBlockDeviceDict(
{'id': 3,
'source_type': 'volume', 'destination_type': 'volume',
}),
]
)
info = {'block_device_mapping': driver_block_device.convert_volumes(
bdms
)}
info['block_device_mapping'][0]['connection_info'] = conn_info
info['block_device_mapping'][1]['connection_info'] = conn_info
info['block_device_mapping'][2]['connection_info'] = conn_info
info['block_device_mapping'][0]['mount_device'] = '/dev/vda'
info['block_device_mapping'][1]['mount_device'] = '/dev/vdc'
info['block_device_mapping'][2]['mount_device'] = '/dev/vdd'
with mock.patch.object(
driver_block_device.DriverVolumeBlockDevice, 'save'
) as mock_save:
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta,
info)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info,
None, info)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertEqual(cfg.devices[1].target_dev, 'vdc')
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestDisk)
self.assertEqual(cfg.devices[2].target_dev, 'vdd')
mock_save.assert_called_with()
def test_get_guest_config_with_configdrive(self):
# It's necessary to check if the architecture is power, because
# power doesn't have support to ide, and so libvirt translate
# all ide calls to scsi
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
# make configdrive.required_by() return True
instance_ref['config_drive'] = True
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
# Pick the first drive letter on the bus that is available
# as the config drive. Delete the last device hardcode as
# the config drive here.
expect = {"ppc": "sda", "ppc64": "sda",
"ppc64le": "sda", "aarch64": "sda"}
disk = expect.get(blockinfo.libvirt_utils.get_arch({}), "hda")
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestDisk)
self.assertEqual(cfg.devices[2].target_dev, disk)
def test_get_guest_config_default_with_virtio_scsi_bus(self):
self._test_get_guest_config_with_virtio_scsi_bus()
@mock.patch.object(rbd_utils.RBDDriver, 'get_mon_addrs')
@mock.patch.object(rbd_utils, 'rbd')
def test_get_guest_config_rbd_with_virtio_scsi_bus(
self, mock_rdb, mock_get_mon_addrs):
self.flags(images_type='rbd', group='libvirt')
mock_get_mon_addrs.return_value = ("host", 9876)
self._test_get_guest_config_with_virtio_scsi_bus()
def _test_get_guest_config_with_virtio_scsi_bus(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_scsi_model": "virtio-scsi",
"hw_disk_bus": "scsi"}})
instance_ref = objects.Instance(**self.test_instance)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta,
[])
cfg = drvr._get_guest_config(instance_ref, [], image_meta, disk_info)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertEqual(0, cfg.devices[0].device_addr.unit)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertEqual(1, cfg.devices[1].device_addr.unit)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestController)
self.assertEqual(cfg.devices[2].model, 'virtio-scsi')
def test_get_guest_config_with_virtio_scsi_bus_bdm(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_scsi_model": "virtio-scsi",
"hw_disk_bus": "scsi"}})
instance_ref = objects.Instance(**self.test_instance)
conn_info = {'driver_volume_type': 'fake', 'data': {}}
bdms = block_device_obj.block_device_make_list_from_dicts(
self.context, [
fake_block_device.FakeDbBlockDeviceDict(
{'id': 1,
'source_type': 'volume', 'destination_type': 'volume',
'device_name': '/dev/sdc', 'disk_bus': 'scsi'}),
fake_block_device.FakeDbBlockDeviceDict(
{'id': 2,
'source_type': 'volume', 'destination_type': 'volume',
'device_name': '/dev/sdd', 'disk_bus': 'scsi'}),
]
)
bd_info = {
'block_device_mapping': driver_block_device.convert_volumes(bdms)}
bd_info['block_device_mapping'][0]['connection_info'] = conn_info
bd_info['block_device_mapping'][1]['connection_info'] = conn_info
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta,
bd_info)
with mock.patch.object(
driver_block_device.DriverVolumeBlockDevice, 'save'
) as mock_save:
cfg = drvr._get_guest_config(instance_ref, [], image_meta,
disk_info, [], bd_info)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestDisk)
self.assertEqual(cfg.devices[2].target_dev, 'sdc')
self.assertEqual(cfg.devices[2].target_bus, 'scsi')
self.assertEqual(2, cfg.devices[2].device_addr.unit)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestDisk)
self.assertEqual(cfg.devices[3].target_dev, 'sdd')
self.assertEqual(cfg.devices[3].target_bus, 'scsi')
self.assertEqual(3, cfg.devices[3].device_addr.unit)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestController)
self.assertEqual(cfg.devices[4].model, 'virtio-scsi')
mock_save.assert_called_with()
def test_get_guest_config_one_scsi_volume_with_configdrive(self):
"""Tests that the unit attribute is only incremented for block devices
that have a scsi bus. Unit numbering should begin at 0 since we are not
booting from volume.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_scsi_model": "virtio-scsi",
"hw_disk_bus": "scsi"}})
instance_ref = objects.Instance(**self.test_instance)
instance_ref.config_drive = 'True'
conn_info = {'driver_volume_type': 'fake'}
bdms = block_device_obj.block_device_make_list_from_dicts(
self.context, [
fake_block_device.FakeDbBlockDeviceDict(
{'id': 1,
'source_type': 'volume', 'destination_type': 'volume',
'device_name': '/dev/sdc', 'disk_bus': 'scsi'}),
]
)
bd_info = {
'block_device_mapping': driver_block_device.convert_volumes(bdms)}
bd_info['block_device_mapping'][0]['connection_info'] = conn_info
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta,
bd_info)
with mock.patch.object(
driver_block_device.DriverVolumeBlockDevice, 'save'):
cfg = drvr._get_guest_config(instance_ref, [], image_meta,
disk_info, [], bd_info)
# The device order is determined by the order that devices are
# appended in _get_guest_storage_config in the driver.
# The first device will be the instance's local disk (since we're
# not booting from volume). It should begin unit numbering at 0.
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIn('disk', cfg.devices[0].source_path)
self.assertEqual('sda', cfg.devices[0].target_dev)
self.assertEqual('scsi', cfg.devices[0].target_bus)
self.assertEqual(0, cfg.devices[0].device_addr.unit)
# The second device will be the ephemeral disk
# (the flavor in self.test_instance has ephemeral_gb > 0).
# It should have the next unit number of 1.
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIn('disk.local', cfg.devices[1].source_path)
self.assertEqual('sdb', cfg.devices[1].target_dev)
self.assertEqual('scsi', cfg.devices[1].target_bus)
self.assertEqual(1, cfg.devices[1].device_addr.unit)
# This is the config drive. It should not have unit number set.
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestDisk)
self.assertIn('disk.config', cfg.devices[2].source_path)
self.assertEqual('hda', cfg.devices[2].target_dev)
self.assertEqual('ide', cfg.devices[2].target_bus)
self.assertIsNone(cfg.devices[2].device_addr)
# And this is the attached volume.
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestDisk)
self.assertEqual('sdc', cfg.devices[3].target_dev)
self.assertEqual('scsi', cfg.devices[3].target_bus)
self.assertEqual(2, cfg.devices[3].device_addr.unit)
def test_get_guest_config_boot_from_volume_with_configdrive(self):
"""Tests that the unit attribute is only incremented for block devices
that have a scsi bus and that the bootable volume in a boot-from-volume
scenario always has the unit set to 0.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_scsi_model": "virtio-scsi",
"hw_disk_bus": "scsi"}})
instance_ref = objects.Instance(**self.test_instance)
instance_ref.config_drive = 'True'
conn_info = {'driver_volume_type': 'fake'}
bdms = block_device_obj.block_device_make_list_from_dicts(
self.context, [
# This is the boot volume (boot_index = 0).
fake_block_device.FakeDbBlockDeviceDict(
{'id': 1,
'source_type': 'volume', 'destination_type': 'volume',
'device_name': '/dev/sda', 'boot_index': 0}),
# This is just another attached volume.
fake_block_device.FakeDbBlockDeviceDict(
{'id': 2,
'source_type': 'volume', 'destination_type': 'volume',
'device_name': '/dev/sdc', 'disk_bus': 'scsi'}),
]
)
bd_info = {
'block_device_mapping': driver_block_device.convert_volumes(bdms)}
bd_info['block_device_mapping'][0]['connection_info'] = conn_info
bd_info['block_device_mapping'][1]['connection_info'] = conn_info
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta,
bd_info)
with mock.patch.object(
driver_block_device.DriverVolumeBlockDevice, 'save'):
cfg = drvr._get_guest_config(instance_ref, [], image_meta,
disk_info, [], bd_info)
# The device order is determined by the order that devices are
# appended in _get_guest_storage_config in the driver.
# The first device will be the ephemeral disk
# (the flavor in self.test_instance has ephemeral_gb > 0).
# It should begin unit numbering at 1 because 0 is reserved for the
# boot volume for boot-from-volume.
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIn('disk.local', cfg.devices[0].source_path)
self.assertEqual('sdb', cfg.devices[0].target_dev)
self.assertEqual('scsi', cfg.devices[0].target_bus)
self.assertEqual(1, cfg.devices[0].device_addr.unit)
# The second device will be the config drive. It should not have a
# unit number set.
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIn('disk.config', cfg.devices[1].source_path)
self.assertEqual('hda', cfg.devices[1].target_dev)
self.assertEqual('ide', cfg.devices[1].target_bus)
self.assertIsNone(cfg.devices[1].device_addr)
# The third device will be the boot volume. It should have a
# unit number of 0.
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestDisk)
self.assertEqual('sda', cfg.devices[2].target_dev)
self.assertEqual('scsi', cfg.devices[2].target_bus)
self.assertEqual(0, cfg.devices[2].device_addr.unit)
# The fourth device will be the other attached volume.
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestDisk)
self.assertEqual('sdc', cfg.devices[3].target_dev)
self.assertEqual('scsi', cfg.devices[3].target_bus)
self.assertEqual(2, cfg.devices[3].device_addr.unit)
def _get_guest_config_with_graphics(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
return cfg
def test_get_guest_config_with_vnc(self):
self.flags(enabled=True,
server_listen='10.0.0.1',
keymap='en-ie',
group='vnc')
self.flags(virt_type='kvm', group='libvirt')
self.flags(pointer_model='ps2mouse')
self.flags(enabled=False, group='spice')
cfg = self._get_guest_config_with_graphics()
self.assertEqual(len(cfg.devices), 6)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual(cfg.devices[3].type, 'vnc')
self.assertEqual(cfg.devices[3].keymap, 'en-ie')
self.assertEqual(cfg.devices[3].listen, '10.0.0.1')
def test_get_guest_config_with_vnc_and_tablet(self):
self.flags(enabled=True, group='vnc')
self.flags(virt_type='kvm',
use_usb_tablet=True,
group='libvirt')
self.flags(enabled=False, group='spice')
cfg = self._get_guest_config_with_graphics()
self.assertEqual(len(cfg.devices), 7)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestInput)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual(cfg.devices[3].type, "tablet")
self.assertEqual(cfg.devices[4].type, "vnc")
def test_get_guest_config_with_spice_and_tablet(self):
self.flags(enabled=False, group='vnc')
self.flags(virt_type='kvm',
use_usb_tablet=True,
group='libvirt')
self.flags(enabled=True,
agent_enabled=False,
server_listen='10.0.0.1',
keymap='en-ie',
group='spice')
cfg = self._get_guest_config_with_graphics()
self.assertEqual(len(cfg.devices), 7)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestInput)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual(cfg.devices[3].type, 'tablet')
self.assertEqual(cfg.devices[4].type, 'spice')
self.assertEqual(cfg.devices[4].keymap, 'en-ie')
self.assertEqual(cfg.devices[4].listen, '10.0.0.1')
def test_get_guest_config_with_spice_and_agent(self):
self.flags(enabled=False, group='vnc')
self.flags(virt_type='kvm',
use_usb_tablet=True,
group='libvirt')
self.flags(enabled=True,
agent_enabled=True,
group='spice')
cfg = self._get_guest_config_with_graphics()
expect = {"ppc": "vga", "ppc64": "vga",
"ppc64le": "vga", "aarch64": "virtio"}
video_type = expect.get(blockinfo.libvirt_utils.get_arch({}), "qxl")
self.assertEqual(len(cfg.devices), 7)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestChannel)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual(cfg.devices[3].target_name, "com.redhat.spice.0")
self.assertEqual(cfg.devices[3].type, 'spicevmc')
self.assertEqual(cfg.devices[4].type, "spice")
self.assertEqual(cfg.devices[5].type, video_type)
def test_get_guest_config_with_vnc_no_keymap(self):
self.flags(virt_type='kvm', group='libvirt')
self.flags(enabled=True, keymap=None, group='vnc')
self.flags(enabled=False, group='spice')
cfg = self._get_guest_config_with_graphics()
for device in cfg.devices:
if device.root_name == 'graphics':
self.assertIsInstance(device,
vconfig.LibvirtConfigGuestGraphics)
self.assertEqual('vnc', device.type)
self.assertIsNone(device.keymap)
def test_get_guest_config_with_spice_no_keymap(self):
self.flags(virt_type='kvm', group='libvirt')
self.flags(enabled=True, keymap=None, group='spice')
self.flags(enabled=False, group='vnc')
cfg = self._get_guest_config_with_graphics()
for device in cfg.devices:
if device.root_name == 'graphics':
self.assertIsInstance(device,
vconfig.LibvirtConfigGuestGraphics)
self.assertEqual('spice', device.type)
self.assertIsNone(device.keymap)
@mock.patch.object(host.Host, 'get_guest')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_get_serial_ports_from_guest')
@mock.patch('nova.console.serial.acquire_port')
@mock.patch('nova.virt.hardware.get_number_of_serial_ports',
return_value=1)
@mock.patch.object(libvirt_driver.libvirt_utils, 'get_arch',)
def test_create_serial_console_devices_based_on_arch(self, mock_get_arch,
mock_get_port_number,
mock_acquire_port,
mock_ports,
mock_guest):
self.flags(enabled=True, group='serial_console')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance = objects.Instance(**self.test_instance)
expected = {
fields.Architecture.X86_64: vconfig.LibvirtConfigGuestSerial,
fields.Architecture.S390: vconfig.LibvirtConfigGuestConsole,
fields.Architecture.S390X: vconfig.LibvirtConfigGuestConsole}
for guest_arch, device_type in expected.items():
mock_get_arch.return_value = guest_arch
guest = vconfig.LibvirtConfigGuest()
drvr._create_consoles(virt_type="kvm", guest_cfg=guest,
instance=instance, flavor={},
image_meta={})
self.assertEqual(1, len(guest.devices))
console_device = guest.devices[0]
self.assertIsInstance(console_device, device_type)
self.assertEqual("tcp", console_device.type)
@mock.patch.object(host.Host, 'get_guest')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_get_serial_ports_from_guest')
@mock.patch('nova.virt.hardware.get_number_of_serial_ports',
return_value=4)
@mock.patch.object(libvirt_driver.libvirt_utils, 'get_arch',
side_effect=[fields.Architecture.X86_64,
fields.Architecture.S390,
fields.Architecture.S390X])
def test_create_serial_console_devices_with_limit_exceeded_based_on_arch(
self, mock_get_arch, mock_get_port_number, mock_ports, mock_guest):
self.flags(enabled=True, group='serial_console')
self.flags(virt_type="qemu", group='libvirt')
flavor = 'fake_flavor'
image_meta = objects.ImageMeta()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
guest = vconfig.LibvirtConfigGuest()
instance = objects.Instance(**self.test_instance)
self.assertRaises(exception.SerialPortNumberLimitExceeded,
drvr._create_consoles,
"kvm", guest, instance, flavor, image_meta)
mock_get_arch.assert_called_with(image_meta)
mock_get_port_number.assert_called_with(flavor,
image_meta)
drvr._create_consoles("kvm", guest, instance, flavor, image_meta)
mock_get_arch.assert_called_with(image_meta)
mock_get_port_number.assert_called_with(flavor,
image_meta)
drvr._create_consoles("kvm", guest, instance, flavor, image_meta)
mock_get_arch.assert_called_with(image_meta)
mock_get_port_number.assert_called_with(flavor,
image_meta)
@mock.patch('nova.console.serial.acquire_port')
def test_get_guest_config_serial_console(self, acquire_port):
self.flags(enabled=True, group='serial_console')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
acquire_port.return_value = 11111
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(7, len(cfg.devices))
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestInput)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual("tcp", cfg.devices[2].type)
self.assertEqual(11111, cfg.devices[2].listen_port)
def test_get_guest_config_serial_console_through_flavor(self):
self.flags(enabled=True, group='serial_console')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor.extra_specs = {'hw:serial_port_count': 3}
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(9, len(cfg.devices))
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestInput)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[7],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[8],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual("tcp", cfg.devices[2].type)
self.assertEqual("tcp", cfg.devices[3].type)
self.assertEqual("tcp", cfg.devices[4].type)
def test_get_guest_config_serial_console_invalid_flavor(self):
self.flags(enabled=True, group='serial_console')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor.extra_specs = {'hw:serial_port_count': "a"}
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
self.assertRaises(
exception.ImageSerialPortNumberInvalid,
drvr._get_guest_config, instance_ref, [],
image_meta, disk_info)
def test_get_guest_config_serial_console_image_and_flavor(self):
self.flags(enabled=True, group='serial_console')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_serial_port_count": "3"}})
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor.extra_specs = {'hw:serial_port_count': 4}
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [], image_meta,
disk_info)
self.assertEqual(9, len(cfg.devices), cfg.devices)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestInput)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[7],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[8],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual("tcp", cfg.devices[2].type)
self.assertEqual("tcp", cfg.devices[3].type)
self.assertEqual("tcp", cfg.devices[4].type)
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
@mock.patch('nova.console.serial.acquire_port')
@mock.patch('nova.virt.hardware.get_number_of_serial_ports',
return_value=1)
@mock.patch.object(libvirt_driver.libvirt_utils, 'get_arch',)
def test_guest_config_char_device_logd(self, mock_get_arch,
mock_get_number_serial_ports,
mock_acquire_port,
mock_host_has_min_version):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
def _test_consoles(arch_to_mock, serial_enabled,
expected_device_type, expected_device_cls,
virt_type='qemu'):
guest_cfg = vconfig.LibvirtConfigGuest()
mock_get_arch.return_value = arch_to_mock
self.flags(enabled=serial_enabled, group='serial_console')
instance = objects.Instance(**self.test_instance)
drvr._create_consoles(virt_type, guest_cfg, instance=instance,
flavor=None, image_meta=None)
self.assertEqual(1, len(guest_cfg.devices))
device = guest_cfg.devices[0]
self.assertEqual(expected_device_type, device.type)
self.assertIsInstance(device, expected_device_cls)
self.assertIsInstance(device.log,
vconfig.LibvirtConfigGuestCharDeviceLog)
self.assertEqual("off", device.log.append)
self.assertIsNotNone(device.log.file)
self.assertTrue(device.log.file.endswith("console.log"))
_test_consoles(fields.Architecture.X86_64, False,
"pty", vconfig.LibvirtConfigGuestSerial)
_test_consoles(fields.Architecture.S390, True,
"tcp", vconfig.LibvirtConfigGuestConsole)
_test_consoles(fields.Architecture.X86_64, False,
"pty", vconfig.LibvirtConfigGuestConsole, 'xen')
@mock.patch('nova.console.serial.acquire_port')
def test_get_guest_config_serial_console_through_port_rng_exhausted(
self, acquire_port):
self.flags(enabled=True, group='serial_console')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
acquire_port.side_effect = exception.SocketPortRangeExhaustedException(
'127.0.0.1')
self.assertRaises(
exception.SocketPortRangeExhaustedException,
drvr._get_guest_config, instance_ref, [],
image_meta, disk_info)
@mock.patch('nova.console.serial.release_port')
@mock.patch.object(libvirt_driver.LibvirtDriver, 'get_info')
@mock.patch.object(host.Host, 'get_guest')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_get_serial_ports_from_guest')
def test_serial_console_release_port(
self, mock_get_serial_ports_from_guest, mock_get_guest,
mock_get_info, mock_release_port):
self.flags(enabled="True", group='serial_console')
guest = libvirt_guest.Guest(FakeVirtDomain())
guest.power_off = mock.Mock()
mock_get_info.return_value = hardware.InstanceInfo(
state=power_state.SHUTDOWN)
mock_get_guest.return_value = guest
mock_get_serial_ports_from_guest.return_value = iter([
('127.0.0.1', 10000), ('127.0.0.1', 10001)])
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._destroy(objects.Instance(**self.test_instance))
mock_release_port.assert_has_calls(
[mock.call(host='127.0.0.1', port=10000),
mock.call(host='127.0.0.1', port=10001)])
@mock.patch('os.stat', return_value=mock.Mock(st_blocks=0))
@mock.patch('os.path.getsize', return_value=0)
@mock.patch('nova.virt.libvirt.storage.lvm.get_volume_size',
return_value='fake-size')
def test_detach_encrypted_volumes(self, mock_get_volume_size,
mock_getsize, mock_stat):
"""Test that unencrypted volumes are not disconnected with dmcrypt."""
instance = objects.Instance(**self.test_instance)
xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<driver name='fake-driver' type='fake-type' />
<source file='filename'/>
<target dev='vdc' bus='virtio'/>
</disk>
<disk type='block' device='disk'>
<driver name='fake-driver' type='fake-type' />
<source dev='/dev/mapper/disk'/>
<target dev='vda'/>
</disk>
<disk type='block' device='disk'>
<driver name='fake-driver' type='fake-type' />
<source dev='/dev/mapper/swap'/>
<target dev='vdb'/>
</disk>
</devices>
</domain>
"""
dom = FakeVirtDomain(fake_xml=xml)
instance.ephemeral_key_uuid = uuids.ephemeral_key_uuid # encrypted
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
@mock.patch.object(dmcrypt, 'delete_volume')
@mock.patch.object(conn._host, '_get_domain', return_value=dom)
@mock.patch.object(libvirt_driver.disk_api, 'get_allocated_disk_size')
def detach_encrypted_volumes(block_device_info, mock_get_alloc_size,
mock_get_domain, mock_delete_volume):
conn._detach_encrypted_volumes(instance, block_device_info)
mock_get_domain.assert_called_once_with(instance)
self.assertFalse(mock_delete_volume.called)
block_device_info = {'root_device_name': '/dev/vda',
'ephemerals': [],
'block_device_mapping': []}
detach_encrypted_volumes(block_device_info)
@mock.patch.object(libvirt_guest.Guest, "get_xml_desc")
def test_get_serial_ports_from_guest(self, mock_get_xml_desc):
i = self._test_get_serial_ports_from_guest(None,
mock_get_xml_desc)
self.assertEqual([
('127.0.0.1', 100),
('127.0.0.1', 101),
('127.0.0.2', 100),
('127.0.0.2', 101)], list(i))
@mock.patch.object(libvirt_guest.Guest, "get_xml_desc")
def test_get_serial_ports_from_guest_bind_only(self, mock_get_xml_desc):
i = self._test_get_serial_ports_from_guest('bind',
mock_get_xml_desc)
self.assertEqual([
('127.0.0.1', 101),
('127.0.0.2', 100)], list(i))
@mock.patch.object(libvirt_guest.Guest, "get_xml_desc")
def test_get_serial_ports_from_guest_connect_only(self,
mock_get_xml_desc):
i = self._test_get_serial_ports_from_guest('connect',
mock_get_xml_desc)
self.assertEqual([
('127.0.0.1', 100),
('127.0.0.2', 101)], list(i))
@mock.patch.object(libvirt_guest.Guest, "get_xml_desc")
def test_get_serial_ports_from_guest_on_s390(self, mock_get_xml_desc):
i = self._test_get_serial_ports_from_guest(None,
mock_get_xml_desc,
'console')
self.assertEqual([
('127.0.0.1', 100),
('127.0.0.1', 101),
('127.0.0.2', 100),
('127.0.0.2', 101)], list(i))
def _test_get_serial_ports_from_guest(self, mode, mock_get_xml_desc,
dev_name='serial'):
xml = """
<domain type='kvm'>
<devices>
<%(dev_name)s type="tcp">
<source host="127.0.0.1" service="100" mode="connect"/>
</%(dev_name)s>
<%(dev_name)s type="tcp">
<source host="127.0.0.1" service="101" mode="bind"/>
</%(dev_name)s>
<%(dev_name)s type="tcp">
<source host="127.0.0.2" service="100" mode="bind"/>
</%(dev_name)s>
<%(dev_name)s type="tcp">
<source host="127.0.0.2" service="101" mode="connect"/>
</%(dev_name)s>
</devices>
</domain>""" % {'dev_name': dev_name}
mock_get_xml_desc.return_value = xml
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
guest = libvirt_guest.Guest(FakeVirtDomain())
return drvr._get_serial_ports_from_guest(guest, mode=mode)
def test_get_guest_config_with_type_xen(self):
self.flags(enabled=True, group='vnc')
self.flags(virt_type='xen',
use_usb_tablet=False,
group='libvirt')
self.flags(enabled=False,
group='spice')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(len(cfg.devices), 6)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestConsole)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual(cfg.devices[3].type, "vnc")
self.assertEqual(cfg.devices[4].type, "xen")
@mock.patch.object(libvirt_driver.libvirt_utils, 'get_arch',
return_value=fields.Architecture.S390X)
def test_get_guest_config_with_type_kvm_on_s390(self, mock_get_arch):
self.flags(enabled=False, group='vnc')
self.flags(virt_type='kvm',
use_usb_tablet=False,
group='libvirt')
self._stub_host_capabilities_cpu_arch(fields.Architecture.S390X)
instance_ref = objects.Instance(**self.test_instance)
cfg = self._get_guest_config_via_fake_api(instance_ref)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
terminal_device = cfg.devices[2]
self.assertIsInstance(terminal_device,
vconfig.LibvirtConfigGuestConsole)
self.assertEqual("sclp", terminal_device.target_type)
self.assertEqual("pty", terminal_device.type)
self.assertEqual("s390-ccw-virtio", cfg.os_mach_type)
def _stub_host_capabilities_cpu_arch(self, cpu_arch):
def get_host_capabilities_stub(self):
cpu = vconfig.LibvirtConfigGuestCPU()
cpu.arch = cpu_arch
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = cpu
return caps
self.stub_out('nova.virt.libvirt.host.Host.get_capabilities',
get_host_capabilities_stub)
def _get_guest_config_via_fake_api(self, instance):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance,
image_meta)
return drvr._get_guest_config(instance, [],
image_meta, disk_info)
def test_get_guest_config_with_type_xen_pae_hvm(self):
self.flags(enabled=True, group='vnc')
self.flags(virt_type='xen',
use_usb_tablet=False,
group='libvirt')
self.flags(enabled=False,
group='spice')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref['vm_mode'] = fields.VMMode.HVM
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(cfg.os_type, fields.VMMode.HVM)
self.assertEqual(cfg.os_loader, CONF.libvirt.xen_hvmloader_path)
self.assertEqual(3, len(cfg.features))
self.assertIsInstance(cfg.features[0],
vconfig.LibvirtConfigGuestFeaturePAE)
self.assertIsInstance(cfg.features[1],
vconfig.LibvirtConfigGuestFeatureACPI)
self.assertIsInstance(cfg.features[2],
vconfig.LibvirtConfigGuestFeatureAPIC)
def test_get_guest_config_with_type_xen_pae_pvm(self):
self.flags(enabled=True, group='vnc')
self.flags(virt_type='xen',
use_usb_tablet=False,
group='libvirt')
self.flags(enabled=False,
group='spice')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(cfg.os_type, fields.VMMode.XEN)
self.assertEqual(1, len(cfg.features))
self.assertIsInstance(cfg.features[0],
vconfig.LibvirtConfigGuestFeaturePAE)
def test_get_guest_config_with_vnc_and_spice(self):
self.flags(enabled=True, group='vnc')
self.flags(virt_type='kvm',
use_usb_tablet=True,
group='libvirt')
self.flags(enabled=True,
agent_enabled=True,
group='spice')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(len(cfg.devices), 9)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestInput)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestChannel)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[7],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[8],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual(cfg.devices[3].type, "tablet")
self.assertEqual(cfg.devices[4].target_name, "com.redhat.spice.0")
self.assertEqual(cfg.devices[4].type, 'spicevmc')
self.assertEqual(cfg.devices[5].type, "vnc")
self.assertEqual(cfg.devices[6].type, "spice")
def test_get_guest_config_with_watchdog_action_image_meta(self):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_watchdog_action": "none"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [], image_meta, disk_info)
self.assertEqual(len(cfg.devices), 8)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestInput)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigGuestWatchdog)
self.assertIsInstance(cfg.devices[7],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual("none", cfg.devices[6].action)
def _test_get_guest_usb_tablet(self, vnc_enabled, spice_enabled, os_type,
agent_enabled=False, image_meta=None):
self.flags(enabled=vnc_enabled, group='vnc')
self.flags(enabled=spice_enabled,
agent_enabled=agent_enabled, group='spice')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
image_meta = objects.ImageMeta.from_dict(image_meta)
return drvr._get_guest_pointer_model(os_type, image_meta)
def test_use_ps2_mouse(self):
self.flags(pointer_model='ps2mouse')
tablet = self._test_get_guest_usb_tablet(
True, True, fields.VMMode.HVM)
self.assertIsNone(tablet)
def test_get_guest_usb_tablet_wipe(self):
self.flags(use_usb_tablet=True, group='libvirt')
tablet = self._test_get_guest_usb_tablet(
True, True, fields.VMMode.HVM)
self.assertIsNotNone(tablet)
tablet = self._test_get_guest_usb_tablet(
True, False, fields.VMMode.HVM)
self.assertIsNotNone(tablet)
tablet = self._test_get_guest_usb_tablet(
False, True, fields.VMMode.HVM)
self.assertIsNotNone(tablet)
tablet = self._test_get_guest_usb_tablet(
False, False, fields.VMMode.HVM)
self.assertIsNone(tablet)
tablet = self._test_get_guest_usb_tablet(
True, True, "foo")
self.assertIsNone(tablet)
tablet = self._test_get_guest_usb_tablet(
False, True, fields.VMMode.HVM, True)
self.assertIsNone(tablet)
def test_get_guest_usb_tablet_image_meta(self):
self.flags(use_usb_tablet=True, group='libvirt')
image_meta = {"properties": {"hw_pointer_model": "usbtablet"}}
tablet = self._test_get_guest_usb_tablet(
True, True, fields.VMMode.HVM, image_meta=image_meta)
self.assertIsNotNone(tablet)
tablet = self._test_get_guest_usb_tablet(
True, False, fields.VMMode.HVM, image_meta=image_meta)
self.assertIsNotNone(tablet)
tablet = self._test_get_guest_usb_tablet(
False, True, fields.VMMode.HVM, image_meta=image_meta)
self.assertIsNotNone(tablet)
tablet = self._test_get_guest_usb_tablet(
False, False, fields.VMMode.HVM, image_meta=image_meta)
self.assertIsNone(tablet)
tablet = self._test_get_guest_usb_tablet(
True, True, "foo", image_meta=image_meta)
self.assertIsNone(tablet)
tablet = self._test_get_guest_usb_tablet(
False, True, fields.VMMode.HVM, True, image_meta=image_meta)
self.assertIsNone(tablet)
def test_get_guest_usb_tablet_image_meta_no_vnc(self):
self.flags(use_usb_tablet=False, group='libvirt')
self.flags(pointer_model=None)
image_meta = {"properties": {"hw_pointer_model": "usbtablet"}}
self.assertRaises(
exception.UnsupportedPointerModelRequested,
self._test_get_guest_usb_tablet,
False, False, fields.VMMode.HVM, True, image_meta=image_meta)
def test_get_guest_no_pointer_model_usb_tablet_set(self):
self.flags(use_usb_tablet=True, group='libvirt')
self.flags(pointer_model=None)
tablet = self._test_get_guest_usb_tablet(True, True, fields.VMMode.HVM)
self.assertIsNotNone(tablet)
def test_get_guest_no_pointer_model_usb_tablet_not_set(self):
self.flags(use_usb_tablet=False, group='libvirt')
self.flags(pointer_model=None)
tablet = self._test_get_guest_usb_tablet(True, True, fields.VMMode.HVM)
self.assertIsNone(tablet)
def test_get_guest_pointer_model_usb_tablet(self):
self.flags(use_usb_tablet=False, group='libvirt')
self.flags(pointer_model='usbtablet')
tablet = self._test_get_guest_usb_tablet(True, True, fields.VMMode.HVM)
self.assertIsNotNone(tablet)
def test_get_guest_pointer_model_usb_tablet_image(self):
image_meta = {"properties": {"hw_pointer_model": "usbtablet"}}
tablet = self._test_get_guest_usb_tablet(
True, True, fields.VMMode.HVM, image_meta=image_meta)
self.assertIsNotNone(tablet)
def test_get_guest_pointer_model_usb_tablet_image_no_HVM(self):
self.flags(pointer_model=None)
self.flags(use_usb_tablet=False, group='libvirt')
image_meta = {"properties": {"hw_pointer_model": "usbtablet"}}
self.assertRaises(
exception.UnsupportedPointerModelRequested,
self._test_get_guest_usb_tablet,
True, True, fields.VMMode.XEN, image_meta=image_meta)
def test_get_guest_config_with_watchdog_action_flavor(self):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor.extra_specs = {"hw:watchdog_action": 'none'}
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(8, len(cfg.devices))
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestInput)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigGuestWatchdog)
self.assertIsInstance(cfg.devices[7],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual("none", cfg.devices[6].action)
def test_get_guest_config_with_watchdog_overrides_flavor(self):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor.extra_specs = {'hw:watchdog_action': 'none'}
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_watchdog_action": "pause"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(8, len(cfg.devices))
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestInput)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigGuestWatchdog)
self.assertIsInstance(cfg.devices[7],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual("pause", cfg.devices[6].action)
def test_get_guest_config_with_video_driver_image_meta(self):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_video_model": "vmvga"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [], image_meta, disk_info)
self.assertEqual(len(cfg.devices), 7)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestInput)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual(cfg.devices[4].type, "vnc")
self.assertEqual(cfg.devices[5].type, "vmvga")
def test_get_guest_config_with_qga_through_image_meta(self):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_qemu_guest_agent": "yes"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [], image_meta, disk_info)
self.assertEqual(len(cfg.devices), 8)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestInput)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigGuestChannel)
self.assertIsInstance(cfg.devices[7],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual(cfg.devices[3].type, "tablet")
self.assertEqual(cfg.devices[4].type, "vnc")
self.assertEqual(cfg.devices[6].type, "unix")
self.assertEqual(cfg.devices[6].target_name, "org.qemu.guest_agent.0")
def test_get_guest_config_with_video_driver_vram(self):
self.flags(enabled=False, group='vnc')
self.flags(virt_type='kvm', group='libvirt')
self.flags(enabled=True,
agent_enabled=True,
group='spice')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor.extra_specs = {'hw_video:ram_max_mb': "100"}
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_video_model": "qxl",
"hw_video_ram": "64"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(len(cfg.devices), 7)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestChannel)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual(cfg.devices[4].type, "spice")
self.assertEqual(cfg.devices[5].type, "qxl")
self.assertEqual(cfg.devices[5].vram, 64 * units.Mi / units.Ki)
@mock.patch('nova.virt.disk.api.teardown_container')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.get_info')
@mock.patch('nova.virt.disk.api.setup_container')
@mock.patch('oslo_utils.fileutils.ensure_tree')
@mock.patch('nova.virt.libvirt.utils.get_instance_path')
def test_unmount_fs_if_error_during_lxc_create_domain(self,
mock_get_inst_path, mock_ensure_tree, mock_setup_container,
mock_get_info, mock_teardown):
"""If we hit an error during a `_create_domain` call to `libvirt+lxc`
we need to ensure the guest FS is unmounted from the host so that any
future `lvremove` calls will work.
"""
self.flags(virt_type='lxc', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
mock_instance = mock.MagicMock()
mock_get_inst_path.return_value = '/tmp/'
mock_image_backend = mock.MagicMock()
drvr.image_backend = mock_image_backend
mock_image = mock.MagicMock()
mock_image.path = '/tmp/test.img'
drvr.image_backend.by_name.return_value = mock_image
mock_setup_container.return_value = '/dev/nbd0'
mock_get_info.side_effect = exception.InstanceNotFound(
instance_id='foo')
drvr._conn.defineXML = mock.Mock()
drvr._conn.defineXML.side_effect = ValueError('somethingbad')
with test.nested(
mock.patch.object(drvr, '_is_booted_from_volume',
return_value=False),
mock.patch.object(drvr, 'plug_vifs'),
mock.patch.object(drvr, 'firewall_driver'),
mock.patch.object(drvr, 'cleanup')):
self.assertRaises(ValueError,
drvr._create_domain_and_network,
self.context,
'xml',
mock_instance, None)
mock_teardown.assert_called_with(container_dir='/tmp/rootfs')
def test_video_driver_flavor_limit_not_set(self):
self.flags(virt_type='kvm', group='libvirt')
self.flags(enabled=True,
agent_enabled=True,
group='spice')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_video_model": "qxl",
"hw_video_ram": "64"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
with mock.patch.object(objects.Instance, 'save'):
self.assertRaises(exception.RequestedVRamTooHigh,
drvr._get_guest_config,
instance_ref,
[],
image_meta,
disk_info)
def test_video_driver_ram_above_flavor_limit(self):
self.flags(virt_type='kvm', group='libvirt')
self.flags(enabled=True,
agent_enabled=True,
group='spice')
instance_ref = objects.Instance(**self.test_instance)
instance_type = instance_ref.get_flavor()
instance_type.extra_specs = {'hw_video:ram_max_mb': "50"}
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_video_model": "qxl",
"hw_video_ram": "64"}})
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
with mock.patch.object(objects.Instance, 'save'):
self.assertRaises(exception.RequestedVRamTooHigh,
drvr._get_guest_config,
instance_ref,
[],
image_meta,
disk_info)
def test_get_guest_config_without_qga_through_image_meta(self):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_qemu_guest_agent": "no"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [], image_meta, disk_info)
self.assertEqual(len(cfg.devices), 7)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestInput)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual(cfg.devices[3].type, "tablet")
self.assertEqual(cfg.devices[4].type, "vnc")
def test_get_guest_config_with_rng_device(self):
self.flags(virt_type='kvm', group='libvirt')
self.flags(pointer_model='ps2mouse')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor.extra_specs = {'hw_rng:allowed': 'True'}
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_rng_model": "virtio"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(len(cfg.devices), 7)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestRng)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual(cfg.devices[5].model, 'random')
self.assertEqual(cfg.devices[5].backend, '/dev/urandom')
self.assertIsNone(cfg.devices[5].rate_bytes)
self.assertIsNone(cfg.devices[5].rate_period)
def test_get_guest_config_with_rng_not_allowed(self):
self.flags(virt_type='kvm', group='libvirt')
self.flags(pointer_model='ps2mouse')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_rng_model": "virtio"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(len(cfg.devices), 6)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigMemoryBalloon)
def test_get_guest_config_with_rng_limits(self):
self.flags(virt_type='kvm', group='libvirt')
self.flags(pointer_model='ps2mouse')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor.extra_specs = {'hw_rng:allowed': 'True',
'hw_rng:rate_bytes': '1024',
'hw_rng:rate_period': '2'}
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_rng_model": "virtio"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(len(cfg.devices), 7)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestRng)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual(cfg.devices[5].model, 'random')
self.assertEqual(cfg.devices[5].backend, '/dev/urandom')
self.assertEqual(cfg.devices[5].rate_bytes, 1024)
self.assertEqual(cfg.devices[5].rate_period, 2)
@mock.patch('nova.virt.libvirt.driver.os.path.exists')
def test_get_guest_config_with_rng_backend(self, mock_path):
self.flags(virt_type='kvm',
rng_dev_path='/dev/hw_rng',
group='libvirt')
self.flags(pointer_model='ps2mouse')
mock_path.return_value = True
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor.extra_specs = {'hw_rng:allowed': 'True'}
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_rng_model": "virtio"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(len(cfg.devices), 7)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestRng)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual(cfg.devices[5].model, 'random')
self.assertEqual(cfg.devices[5].backend, '/dev/hw_rng')
self.assertIsNone(cfg.devices[5].rate_bytes)
self.assertIsNone(cfg.devices[5].rate_period)
@mock.patch('nova.virt.libvirt.driver.os.path.exists')
def test_get_guest_config_with_rng_dev_not_present(self, mock_path):
self.flags(virt_type='kvm',
use_usb_tablet=False,
rng_dev_path='/dev/hw_rng',
group='libvirt')
mock_path.return_value = False
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor.extra_specs = {'hw_rng:allowed': 'True'}
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_rng_model": "virtio"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
self.assertRaises(exception.RngDeviceNotExist,
drvr._get_guest_config,
instance_ref,
[],
image_meta, disk_info)
@mock.patch.object(
host.Host, "is_cpu_control_policy_capable", return_value=True)
def test_guest_cpu_shares_with_multi_vcpu(self, is_able):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor.vcpus = 4
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(4096, cfg.cputune.shares)
@mock.patch.object(
host.Host, "is_cpu_control_policy_capable", return_value=True)
def test_get_guest_config_with_cpu_quota(self, is_able):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor.extra_specs = {'quota:cpu_shares': '10000',
'quota:cpu_period': '20000'}
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(10000, cfg.cputune.shares)
self.assertEqual(20000, cfg.cputune.period)
def test_get_guest_config_with_hiding_hypervisor_id(self):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"img_hide_hypervisor_id": "true"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
[],
image_meta,
disk_info)
self.assertTrue(
any(isinstance(feature, vconfig.LibvirtConfigGuestFeatureKvmHidden)
for feature in cfg.features))
def test_get_guest_config_with_hiding_hypervisor_id_flavor_extra_specs(
self):
# Input to the test: flavor extra_specs
flavor_hide_id = fake_flavor.fake_flavor_obj(self.context,
extra_specs={"hide_hypervisor_id": "true"},
expected_attrs={"extra_specs"})
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor = flavor_hide_id
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw"})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
[],
image_meta,
disk_info)
self.assertTrue(
any(isinstance(feature, vconfig.LibvirtConfigGuestFeatureKvmHidden)
for feature in cfg.features))
def test_get_guest_config_with_hiding_hypervisor_id_img_and_flavor(
self):
# Input to the test: image metadata (true) and flavor
# extra_specs (true)
flavor_hide_id = fake_flavor.fake_flavor_obj(self.context,
extra_specs={"hide_hypervisor_id": "true"},
expected_attrs={"extra_specs"})
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"img_hide_hypervisor_id": "true"}})
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor = flavor_hide_id
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
[],
image_meta,
disk_info)
self.assertTrue(
any(isinstance(feature, vconfig.LibvirtConfigGuestFeatureKvmHidden)
for feature in cfg.features))
def test_get_guest_config_with_hiding_hypervisor_id_img_or_flavor(
self):
# Input to the test: image metadata (false) and flavor
# extra_specs (true)
flavor_hide_id = fake_flavor.fake_flavor_obj(self.context,
extra_specs={"hide_hypervisor_id": "true"},
expected_attrs={"extra_specs"})
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"img_hide_hypervisor_id": "false"}})
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor = flavor_hide_id
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
[],
image_meta,
disk_info)
self.assertTrue(
any(isinstance(feature, vconfig.LibvirtConfigGuestFeatureKvmHidden)
for feature in cfg.features))
# Input to the test: image metadata (true) and flavor
# extra_specs (false)
flavor_hide_id = fake_flavor.fake_flavor_obj(self.context,
extra_specs={"hide_hypervisor_id": "false"},
expected_attrs={"extra_specs"})
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"img_hide_hypervisor_id": "true"}})
instance_ref.flavor = flavor_hide_id
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
[],
image_meta,
disk_info)
self.assertTrue(
any(isinstance(feature, vconfig.LibvirtConfigGuestFeatureKvmHidden)
for feature in cfg.features))
def test_get_guest_config_without_hiding_hypervisor_id(self):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"img_hide_hypervisor_id": "false"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
[],
image_meta,
disk_info)
self.assertFalse(
any(isinstance(feature, vconfig.LibvirtConfigGuestFeatureKvmHidden)
for feature in cfg.features))
def test_get_guest_config_without_hiding_hypervisor_id_flavor_extra_specs(
self):
flavor_hide_id = fake_flavor.fake_flavor_obj(self.context,
extra_specs={"hide_hypervisor_id": "false"},
expected_attrs={"extra_specs"})
self.flags(virt_type='qemu', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor = flavor_hide_id
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw"})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
[],
image_meta,
disk_info)
self.assertFalse(
any(isinstance(feature, vconfig.LibvirtConfigGuestFeatureKvmHidden)
for feature in cfg.features))
def _test_get_guest_config_disk_cachemodes(self, images_type):
# Verify that the configured cachemodes are propagated to the device
# configurations.
if images_type == 'flat':
cachemode = 'file=directsync'
elif images_type == 'lvm':
cachemode = 'block=writethrough'
elif images_type == 'rbd':
cachemode = 'network=writeback'
self.flags(disk_cachemodes=[cachemode], group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
for d in cfg.devices:
if isinstance(d, vconfig.LibvirtConfigGuestDisk):
expected = cachemode.split('=')
self.assertEqual(expected[0], d.source_type)
self.assertEqual(expected[1], d.driver_cache)
def test_get_guest_config_disk_cachemodes_file(self):
self.flags(images_type='flat', group='libvirt')
self._test_get_guest_config_disk_cachemodes('flat')
def test_get_guest_config_disk_cachemodes_block(self):
self.flags(images_type='lvm', group='libvirt')
self.flags(images_volume_group='vols', group='libvirt')
self._test_get_guest_config_disk_cachemodes('lvm')
@mock.patch.object(rbd_utils, 'rbd')
@mock.patch.object(rbd_utils, 'rados')
@mock.patch.object(rbd_utils.RBDDriver, 'get_mon_addrs',
return_value=(mock.Mock(), mock.Mock()))
def test_get_guest_config_disk_cachemodes_network(
self, mock_get_mon_addrs, mock_rados, mock_rbd):
self.flags(images_type='rbd', group='libvirt')
self._test_get_guest_config_disk_cachemodes('rbd')
@mock.patch.object(
host.Host, "is_cpu_control_policy_capable", return_value=True)
def test_get_guest_config_with_bogus_cpu_quota(self, is_able):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor.extra_specs = {'quota:cpu_shares': 'fishfood',
'quota:cpu_period': '20000'}
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
self.assertRaises(ValueError,
drvr._get_guest_config,
instance_ref, [], image_meta, disk_info)
@mock.patch.object(
host.Host, "is_cpu_control_policy_capable", return_value=False)
def test_get_update_guest_cputune(self, is_able):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor.extra_specs = {'quota:cpu_shares': '10000',
'quota:cpu_period': '20000'}
self.assertRaises(
exception.UnsupportedHostCPUControlPolicy,
drvr._update_guest_cputune, {}, instance_ref.flavor, "kvm")
def _create_fake_service_compute(self):
service_info = {
'id': 1729,
'host': 'fake',
'report_count': 0
}
service_ref = objects.Service(**service_info)
compute_info = {
'id': 1729,
'vcpus': 2,
'memory_mb': 1024,
'local_gb': 2048,
'vcpus_used': 0,
'memory_mb_used': 0,
'local_gb_used': 0,
'free_ram_mb': 1024,
'free_disk_gb': 2048,
'hypervisor_type': 'xen',
'hypervisor_version': 1,
'running_vms': 0,
'cpu_info': '',
'current_workload': 0,
'service_id': service_ref['id'],
'host': service_ref['host']
}
compute_ref = objects.ComputeNode(**compute_info)
return (service_ref, compute_ref)
def test_get_guest_config_with_pci_passthrough_kvm(self):
self.flags(virt_type='kvm', group='libvirt')
service_ref, compute_ref = self._create_fake_service_compute()
instance = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
pci_device_info = dict(test_pci_device.fake_db_dev)
pci_device_info.update(compute_node_id=1,
label='fake',
status=fields.PciDeviceStatus.ALLOCATED,
address='0000:00:00.1',
compute_id=compute_ref.id,
instance_uuid=instance.uuid,
request_id=None,
extra_info={})
pci_device = objects.PciDevice(**pci_device_info)
pci_list = objects.PciDeviceList()
pci_list.objects.append(pci_device)
instance.pci_devices = pci_list
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance,
image_meta)
cfg = drvr._get_guest_config(instance, [],
image_meta, disk_info)
had_pci = 0
# care only about the PCI devices
for dev in cfg.devices:
if type(dev) == vconfig.LibvirtConfigGuestHostdevPCI:
had_pci += 1
self.assertEqual(dev.type, 'pci')
self.assertEqual(dev.managed, 'yes')
self.assertEqual(dev.mode, 'subsystem')
self.assertEqual(dev.domain, "0000")
self.assertEqual(dev.bus, "00")
self.assertEqual(dev.slot, "00")
self.assertEqual(dev.function, "1")
self.assertEqual(had_pci, 1)
def test_get_guest_config_with_pci_passthrough_xen(self):
self.flags(virt_type='xen', group='libvirt')
service_ref, compute_ref = self._create_fake_service_compute()
instance = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
pci_device_info = dict(test_pci_device.fake_db_dev)
pci_device_info.update(compute_node_id=1,
label='fake',
status=fields.PciDeviceStatus.ALLOCATED,
address='0000:00:00.2',
compute_id=compute_ref.id,
instance_uuid=instance.uuid,
request_id=None,
extra_info={})
pci_device = objects.PciDevice(**pci_device_info)
pci_list = objects.PciDeviceList()
pci_list.objects.append(pci_device)
instance.pci_devices = pci_list
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance,
image_meta)
cfg = drvr._get_guest_config(instance, [],
image_meta, disk_info)
had_pci = 0
# care only about the PCI devices
for dev in cfg.devices:
if type(dev) == vconfig.LibvirtConfigGuestHostdevPCI:
had_pci += 1
self.assertEqual(dev.type, 'pci')
self.assertEqual(dev.managed, 'no')
self.assertEqual(dev.mode, 'subsystem')
self.assertEqual(dev.domain, "0000")
self.assertEqual(dev.bus, "00")
self.assertEqual(dev.slot, "00")
self.assertEqual(dev.function, "2")
self.assertEqual(had_pci, 1)
def test_get_guest_config_os_command_line_through_image_meta(self):
self.flags(virt_type="kvm",
cpu_mode='none',
group='libvirt')
self.test_instance['kernel_id'] = "fake_kernel_id"
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"os_command_line":
"fake_os_command_line"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertEqual(cfg.os_cmdline, "fake_os_command_line")
def test_get_guest_config_os_command_line_without_kernel_id(self):
self.flags(virt_type="kvm",
cpu_mode='none',
group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"os_command_line":
"fake_os_command_line"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertIsNone(cfg.os_cmdline)
def test_get_guest_config_os_command_empty(self):
self.flags(virt_type="kvm",
cpu_mode='none',
group='libvirt')
self.test_instance['kernel_id'] = "fake_kernel_id"
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"os_command_line": ""}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
# the instance has 'root=/dev/vda console=tty0 console=ttyS0
# console=hvc0' set by default, so testing an empty string and None
# value in the os_command_line image property must pass
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertNotEqual(cfg.os_cmdline, "")
@mock.patch.object(libvirt_driver.LibvirtDriver,
"_get_guest_storage_config")
@mock.patch.object(libvirt_driver.LibvirtDriver, "_has_numa_support")
def test_get_guest_config_armv7(self, mock_numa, mock_storage):
def get_host_capabilities_stub(self):
cpu = vconfig.LibvirtConfigGuestCPU()
cpu.arch = fields.Architecture.ARMV7
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = cpu
return caps
self.flags(virt_type="kvm",
group="libvirt")
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
self.stub_out('nova.virt.libvirt.host.Host.get_capabilities',
get_host_capabilities_stub)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertEqual(cfg.os_mach_type, "virt")
@mock.patch.object(libvirt_driver.LibvirtDriver,
"_get_guest_storage_config")
@mock.patch.object(libvirt_driver.LibvirtDriver, "_has_numa_support")
@mock.patch('os.path.exists', return_value=True)
def test_get_guest_config_aarch64(self, mock_path_exists,
mock_numa, mock_storage):
def get_host_capabilities_stub(self):
cpu = vconfig.LibvirtConfigGuestCPU()
cpu.arch = fields.Architecture.AARCH64
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = cpu
return caps
TEST_AMOUNT_OF_PCIE_SLOTS = 8
CONF.set_override("num_pcie_ports", TEST_AMOUNT_OF_PCIE_SLOTS,
group='libvirt')
self.flags(virt_type="kvm",
group="libvirt")
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
self.stub_out('nova.virt.libvirt.host.Host.get_capabilities',
get_host_capabilities_stub)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertTrue(mock_path_exists.called)
mock_path_exists.assert_called_with(
libvirt_driver.DEFAULT_UEFI_LOADER_PATH['aarch64'])
self.assertEqual(cfg.os_mach_type, "virt")
num_ports = 0
for device in cfg.devices:
try:
if (device.root_name == 'controller' and
device.model == 'pcie-root-port'):
num_ports += 1
except AttributeError:
pass
self.assertEqual(TEST_AMOUNT_OF_PCIE_SLOTS, num_ports)
@mock.patch.object(libvirt_driver.LibvirtDriver,
"_get_guest_storage_config")
@mock.patch.object(libvirt_driver.LibvirtDriver, "_has_numa_support")
@mock.patch('os.path.exists', return_value=True)
def test_get_guest_config_aarch64_with_graphics(self, mock_path_exists,
mock_numa, mock_storage):
def get_host_capabilities_stub(self):
cpu = vconfig.LibvirtConfigGuestCPU()
cpu.arch = fields.Architecture.AARCH64
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = cpu
return caps
self.stub_out('nova.virt.libvirt.host.Host.get_capabilities',
get_host_capabilities_stub)
self.flags(enabled=True,
server_listen='10.0.0.1',
keymap='en-ie',
group='vnc')
self.flags(virt_type='kvm', group='libvirt')
self.flags(enabled=False, group='spice')
cfg = self._get_guest_config_with_graphics()
self.assertTrue(mock_path_exists.called)
mock_path_exists.assert_called_with(
libvirt_driver.DEFAULT_UEFI_LOADER_PATH['aarch64'])
self.assertEqual(cfg.os_mach_type, "virt")
usbhost_exists = False
keyboard_exists = False
for device in cfg.devices:
if device.root_name == 'controller' and device.type == 'usb':
usbhost_exists = True
if device.root_name == 'input' and device.type == 'keyboard':
keyboard_exists = True
self.assertTrue(usbhost_exists)
self.assertTrue(keyboard_exists)
def test_get_guest_config_machine_type_s390(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigGuestCPU()
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
host_cpu_archs = (fields.Architecture.S390, fields.Architecture.S390X)
for host_cpu_arch in host_cpu_archs:
caps.host.cpu.arch = host_cpu_arch
os_mach_type = drvr._get_machine_type(image_meta, caps)
self.assertEqual('s390-ccw-virtio', os_mach_type)
def test_get_guest_config_machine_type_through_image_meta(self):
self.flags(virt_type="kvm",
group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict({
"disk_format": "raw",
"properties": {"hw_machine_type":
"fake_machine_type"}})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertEqual(cfg.os_mach_type, "fake_machine_type")
def test_get_guest_config_machine_type_from_config(self):
self.flags(virt_type='kvm', group='libvirt')
self.flags(hw_machine_type=['x86_64=fake_machine_type'],
group='libvirt')
def fake_getCapabilities():
return """
<capabilities>
<host>
<uuid>cef19ce0-0ca2-11df-855d-b19fbce37686</uuid>
<cpu>
<arch>x86_64</arch>
<model>Penryn</model>
<vendor>Intel</vendor>
<topology sockets='1' cores='2' threads='1'/>
<feature name='xtpr'/>
</cpu>
</host>
</capabilities>
"""
def fake_baselineCPU(cpu, flag):
return """<cpu mode='custom' match='exact'>
<model fallback='allow'>Penryn</model>
<vendor>Intel</vendor>
<feature policy='require' name='xtpr'/>
</cpu>
"""
# Make sure the host arch is mocked as x86_64
self.create_fake_libvirt_mock(getCapabilities=fake_getCapabilities,
baselineCPU=fake_baselineCPU,
getVersion=lambda: 1005001)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertEqual(cfg.os_mach_type, "fake_machine_type")
def _test_get_guest_config_ppc64(self, device_index):
"""Test for nova.virt.libvirt.driver.LibvirtDriver._get_guest_config.
"""
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
expected = (fields.Architecture.PPC64, fields.Architecture.PPC)
for guestarch in expected:
with mock.patch.object(libvirt_driver.libvirt_utils,
'get_arch',
return_value=guestarch):
cfg = drvr._get_guest_config(instance_ref, [],
image_meta,
disk_info)
self.assertIsInstance(cfg.devices[device_index],
vconfig.LibvirtConfigGuestVideo)
self.assertEqual(cfg.devices[device_index].type, 'vga')
def test_get_guest_config_ppc64_through_image_meta_vnc_enabled(self):
self.flags(enabled=True, group='vnc')
self._test_get_guest_config_ppc64(5)
def test_get_guest_config_ppc64_through_image_meta_spice_enabled(self):
self.flags(enabled=True,
agent_enabled=True,
group='spice')
self._test_get_guest_config_ppc64(7)
def _test_get_guest_config_bootmenu(self, image_meta, extra_specs):
self.flags(virt_type='kvm', group='libvirt')
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor.extra_specs = extra_specs
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref, image_meta)
conf = conn._get_guest_config(instance_ref, [], image_meta, disk_info)
self.assertTrue(conf.os_bootmenu)
def test_get_guest_config_bootmenu_via_image_meta(self):
image_meta = objects.ImageMeta.from_dict(
{"disk_format": "raw",
"properties": {"hw_boot_menu": "True"}})
self._test_get_guest_config_bootmenu(image_meta, {})
def test_get_guest_config_bootmenu_via_extra_specs(self):
image_meta = objects.ImageMeta.from_dict(
self.test_image_meta)
self._test_get_guest_config_bootmenu(image_meta,
{'hw:boot_menu': 'True'})
def test_get_guest_cpu_config_none(self):
self.flags(cpu_mode="none", group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
conf = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertIsInstance(conf.cpu,
vconfig.LibvirtConfigGuestCPU)
self.assertIsNone(conf.cpu.mode)
self.assertIsNone(conf.cpu.model)
self.assertEqual(conf.cpu.sockets, instance_ref.flavor.vcpus)
self.assertEqual(conf.cpu.cores, 1)
self.assertEqual(conf.cpu.threads, 1)
def test_get_guest_cpu_config_default_kvm(self):
self.flags(virt_type="kvm",
cpu_mode='none',
group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
conf = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertIsInstance(conf.cpu,
vconfig.LibvirtConfigGuestCPU)
self.assertIsNone(conf.cpu.mode)
self.assertIsNone(conf.cpu.model)
self.assertEqual(conf.cpu.sockets, instance_ref.flavor.vcpus)
self.assertEqual(conf.cpu.cores, 1)
self.assertEqual(conf.cpu.threads, 1)
def test_get_guest_cpu_config_default_uml(self):
self.flags(virt_type="uml",
cpu_mode='none',
group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
conf = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertIsNone(conf.cpu)
def test_get_guest_cpu_config_default_lxc(self):
self.flags(virt_type="lxc",
cpu_mode='none',
group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
conf = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertIsNone(conf.cpu)
def test_get_guest_cpu_config_host_passthrough(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
self.flags(cpu_mode="host-passthrough", group='libvirt')
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
conf = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertIsInstance(conf.cpu,
vconfig.LibvirtConfigGuestCPU)
self.assertEqual(conf.cpu.mode, "host-passthrough")
self.assertIsNone(conf.cpu.model)
self.assertEqual(conf.cpu.sockets, instance_ref.flavor.vcpus)
self.assertEqual(conf.cpu.cores, 1)
self.assertEqual(conf.cpu.threads, 1)
def test_get_guest_cpu_config_host_passthrough_aarch64(self):
expected = {
fields.Architecture.X86_64: "host-model",
fields.Architecture.I686: "host-model",
fields.Architecture.PPC: "host-model",
fields.Architecture.PPC64: "host-model",
fields.Architecture.ARMV7: "host-model",
fields.Architecture.AARCH64: "host-passthrough",
}
for guestarch, expect_mode in expected.items():
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = guestarch
with mock.patch.object(host.Host, "get_capabilities",
return_value=caps):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
if caps.host.cpu.arch == fields.Architecture.AARCH64:
drvr._has_uefi_support = mock.Mock(return_value=True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
conf = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertIsInstance(conf.cpu,
vconfig.LibvirtConfigGuestCPU)
self.assertEqual(conf.cpu.mode, expect_mode)
def test_get_guest_cpu_config_host_model(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
self.flags(cpu_mode="host-model", group='libvirt')
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
conf = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertIsInstance(conf.cpu,
vconfig.LibvirtConfigGuestCPU)
self.assertEqual(conf.cpu.mode, "host-model")
self.assertIsNone(conf.cpu.model)
self.assertEqual(conf.cpu.sockets, instance_ref.flavor.vcpus)
self.assertEqual(conf.cpu.cores, 1)
self.assertEqual(conf.cpu.threads, 1)
def test_get_guest_cpu_config_custom(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
self.flags(cpu_mode="custom",
cpu_model="Penryn",
group='libvirt')
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
conf = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertIsInstance(conf.cpu,
vconfig.LibvirtConfigGuestCPU)
self.assertEqual(conf.cpu.mode, "custom")
self.assertEqual(conf.cpu.model, "Penryn")
self.assertEqual(conf.cpu.sockets, instance_ref.flavor.vcpus)
self.assertEqual(conf.cpu.cores, 1)
self.assertEqual(conf.cpu.threads, 1)
@mock.patch.object(libvirt_driver.LOG, 'warning')
def test_get_guest_cpu_config_custom_with_extra_flags(self,
mock_warn):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
self.flags(cpu_mode="custom",
cpu_model="IvyBridge",
cpu_model_extra_flags="pcid",
group='libvirt')
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
conf = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertIsInstance(conf.cpu,
vconfig.LibvirtConfigGuestCPU)
self.assertEqual(conf.cpu.mode, "custom")
self.assertEqual(conf.cpu.model, "IvyBridge")
self.assertIn(conf.cpu.features.pop().name, "pcid")
self.assertEqual(conf.cpu.sockets, instance_ref.flavor.vcpus)
self.assertEqual(conf.cpu.cores, 1)
self.assertEqual(conf.cpu.threads, 1)
self.assertFalse(mock_warn.called)
@mock.patch.object(libvirt_driver.LOG, 'warning')
def test_get_guest_cpu_config_custom_with_extra_flags_upper_case(self,
mock_warn):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
self.flags(cpu_mode="custom",
cpu_model="IvyBridge",
cpu_model_extra_flags="PCID",
group='libvirt')
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
conf = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertIsInstance(conf.cpu,
vconfig.LibvirtConfigGuestCPU)
self.assertEqual("custom", conf.cpu.mode)
self.assertEqual("IvyBridge", conf.cpu.model)
# At this point the upper case CPU flag is normalized to lower
# case, so assert for that
self.assertEqual("pcid", conf.cpu.features.pop().name)
self.assertEqual(instance_ref.flavor.vcpus, conf.cpu.sockets)
self.assertEqual(1, conf.cpu.cores)
self.assertEqual(1, conf.cpu.threads)
mock_warn.assert_not_called()
@mock.patch.object(libvirt_driver.LOG, 'warning')
def test_get_guest_cpu_config_custom_with_multiple_extra_flags(self,
mock_warn):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
self.flags(cpu_mode="custom",
cpu_model="IvyBridge",
cpu_model_extra_flags=['pcid', 'vmx'],
group='libvirt')
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
conf = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
features = [feature.name for feature in conf.cpu.features]
self.assertIsInstance(conf.cpu,
vconfig.LibvirtConfigGuestCPU)
self.assertEqual(conf.cpu.mode, "custom")
self.assertEqual(conf.cpu.model, "IvyBridge")
self.assertIn("pcid", features)
self.assertIn("vmx", features)
self.assertEqual(conf.cpu.sockets, instance_ref.flavor.vcpus)
self.assertEqual(conf.cpu.cores, 1)
self.assertEqual(conf.cpu.threads, 1)
mock_warn.assert_not_called()
@mock.patch.object(libvirt_driver.LOG, 'warning')
def test_get_guest_cpu_config_host_model_with_extra_flags(self,
mock_warn):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
self.flags(cpu_mode="host-model",
cpu_model_extra_flags="pdpe1gb",
group='libvirt')
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
conf = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
features = [feature.name for feature in conf.cpu.features]
self.assertIsInstance(conf.cpu,
vconfig.LibvirtConfigGuestCPU)
self.assertEqual(conf.cpu.mode, "host-model")
self.assertIn("pdpe1gb", features)
self.assertEqual(conf.cpu.sockets, instance_ref.flavor.vcpus)
self.assertEqual(conf.cpu.cores, 1)
self.assertEqual(conf.cpu.threads, 1)
# For 'host-model', it is now valid to use 'extra_flags';
# assert that no warning is thrown
mock_warn.assert_not_called()
@mock.patch.object(libvirt_driver.LOG, 'warning')
def test_get_guest_cpu_config_host_passthrough_with_extra_flags(self,
mock_warn):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
self.flags(cpu_mode="host-passthrough",
cpu_model_extra_flags="invtsc",
group='libvirt')
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
conf = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
features = [feature.name for feature in conf.cpu.features]
self.assertIsInstance(conf.cpu,
vconfig.LibvirtConfigGuestCPU)
self.assertEqual(conf.cpu.mode, "host-passthrough")
self.assertIn("invtsc", features)
self.assertEqual(conf.cpu.sockets, instance_ref.flavor.vcpus)
self.assertEqual(conf.cpu.cores, 1)
self.assertEqual(conf.cpu.threads, 1)
# We have lifted the restriction for 'host-passthrough' as well;
# so here too, assert that no warning is thrown
mock_warn.assert_not_called()
def test_get_guest_cpu_topology(self):
instance_ref = objects.Instance(**self.test_instance)
instance_ref.flavor.vcpus = 8
instance_ref.flavor.extra_specs = {'hw:cpu_max_sockets': '4'}
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
conf = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertIsInstance(conf.cpu,
vconfig.LibvirtConfigGuestCPU)
self.assertEqual(conf.cpu.mode, "host-model")
self.assertEqual(conf.cpu.sockets, 4)
self.assertEqual(conf.cpu.cores, 2)
self.assertEqual(conf.cpu.threads, 1)
def test_get_guest_memory_balloon_config_by_default(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
for device in cfg.devices:
if device.root_name == 'memballoon':
self.assertIsInstance(device,
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual('virtio', device.model)
self.assertEqual(10, device.period)
def test_get_guest_memory_balloon_config_disable(self):
self.flags(mem_stats_period_seconds=0, group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
no_exist = True
for device in cfg.devices:
if device.root_name == 'memballoon':
no_exist = False
break
self.assertTrue(no_exist)
def test_get_guest_memory_balloon_config_period_value(self):
self.flags(mem_stats_period_seconds=21, group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
for device in cfg.devices:
if device.root_name == 'memballoon':
self.assertIsInstance(device,
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual('virtio', device.model)
self.assertEqual(21, device.period)
def test_get_guest_memory_balloon_config_qemu(self):
self.flags(virt_type='qemu', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
for device in cfg.devices:
if device.root_name == 'memballoon':
self.assertIsInstance(device,
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual('virtio', device.model)
self.assertEqual(10, device.period)
def test_get_guest_memory_balloon_config_xen(self):
self.flags(virt_type='xen', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
for device in cfg.devices:
if device.root_name == 'memballoon':
self.assertIsInstance(device,
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual('xen', device.model)
self.assertEqual(10, device.period)
def test_get_guest_memory_balloon_config_lxc(self):
self.flags(virt_type='lxc', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
no_exist = True
for device in cfg.devices:
if device.root_name == 'memballoon':
no_exist = False
break
self.assertTrue(no_exist)
@mock.patch('nova.virt.libvirt.driver.LOG.warning')
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
@mock.patch.object(host.Host, "get_capabilities")
def test_get_supported_perf_events_foo(self, mock_get_caps,
mock_min_version,
mock_warn):
self.flags(enabled_perf_events=['foo'], group='libvirt')
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology()
mock_get_caps.return_value = caps
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
events = drvr._get_supported_perf_events()
self.assertTrue(mock_warn.called)
self.assertEqual([], events)
@mock.patch.object(host.Host, "get_capabilities")
def _test_get_guest_with_perf(self, caps, events, mock_get_caps):
mock_get_caps.return_value = caps
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.init_host('test_perf')
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref, [],
image_meta, disk_info)
self.assertEqual(events, cfg.perf_events)
@mock.patch.object(host.Host, 'has_min_version')
def test_get_guest_with_perf_libvirt_unsupported(self, mock_min_version):
def fake_has_min_version(lv_ver=None, hv_ver=None, hv_type=None):
if lv_ver == libvirt_driver.MIN_LIBVIRT_PERF_VERSION:
return False
return True
mock_min_version.side_effect = fake_has_min_version
self.flags(enabled_perf_events=['cmt'], group='libvirt')
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
self._test_get_guest_with_perf(caps, [])
@mock.patch.object(fakelibvirt, 'VIR_PERF_PARAM_CMT', True,
create=True)
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
def test_get_guest_with_perf_host_unsupported(self,
mock_min_version):
self.flags(enabled_perf_events=['cmt'], group='libvirt')
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology()
self._test_get_guest_with_perf(caps, [])
@mock.patch.object(fakelibvirt, 'VIR_PERF_PARAM_CMT', True,
create=True)
@mock.patch.object(fakelibvirt, 'VIR_PERF_PARAM_MBMT', True,
create=True)
@mock.patch.object(fakelibvirt, 'VIR_PERF_PARAM_MBML', True,
create=True)
@mock.patch.object(libvirt_driver.LOG, 'warning')
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
def test_intel_cmt_perf_deprecation_warning(self,
mock_min_version,
mock_warn):
perf_events = ['cmt', 'mbml', 'mbmt']
self.flags(enabled_perf_events=['cmt', 'mbml', 'mbmt'],
group='libvirt')
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology()
features = []
for f in ('cmt', 'mbm_local', 'mbm_total'):
feature = vconfig.LibvirtConfigGuestCPUFeature()
feature.name = f
feature.policy = fields.CPUFeaturePolicy.REQUIRE
features.append(feature)
caps.host.cpu.features = set(features)
self._test_get_guest_with_perf(caps, ['cmt', 'mbml', 'mbmt'])
warning_count = 0
call_args_list = mock_warn.call_args_list
for call in call_args_list:
# Call can be unpackaged as a tuple of args and kwargs
# so we want to check the first arg in the args list
if (len(call) == 2 and len(call[0]) == 2 and
call[0][1] in perf_events and
'Monitoring Intel CMT' in call[0][0]):
warning_count += 1
self.assertEqual(3, warning_count)
def test_xml_and_uri_no_ramdisk_no_kernel(self):
instance_data = dict(self.test_instance)
self._check_xml_and_uri(instance_data,
expect_kernel=False, expect_ramdisk=False)
def test_xml_and_uri_no_ramdisk_no_kernel_xen_hvm(self):
instance_data = dict(self.test_instance)
instance_data.update({'vm_mode': fields.VMMode.HVM})
self._check_xml_and_uri(instance_data, expect_kernel=False,
expect_ramdisk=False, expect_xen_hvm=True)
def test_xml_and_uri_no_ramdisk_no_kernel_xen_pv(self):
instance_data = dict(self.test_instance)
instance_data.update({'vm_mode': fields.VMMode.XEN})
self._check_xml_and_uri(instance_data, expect_kernel=False,
expect_ramdisk=False, expect_xen_hvm=False,
xen_only=True)
def test_xml_and_uri_no_ramdisk(self):
instance_data = dict(self.test_instance)
instance_data['kernel_id'] = 'aki-deadbeef'
self._check_xml_and_uri(instance_data,
expect_kernel=True, expect_ramdisk=False)
def test_xml_and_uri_no_kernel(self):
instance_data = dict(self.test_instance)
instance_data['ramdisk_id'] = 'ari-deadbeef'
self._check_xml_and_uri(instance_data,
expect_kernel=False, expect_ramdisk=False)
def test_xml_and_uri(self):
instance_data = dict(self.test_instance)
instance_data['ramdisk_id'] = 'ari-deadbeef'
instance_data['kernel_id'] = 'aki-deadbeef'
self._check_xml_and_uri(instance_data,
expect_kernel=True, expect_ramdisk=True)
def test_xml_and_uri_rescue(self):
instance_data = dict(self.test_instance)
instance_data['ramdisk_id'] = 'ari-deadbeef'
instance_data['kernel_id'] = 'aki-deadbeef'
self._check_xml_and_uri(instance_data, expect_kernel=True,
expect_ramdisk=True, rescue=instance_data)
def test_xml_and_uri_rescue_no_kernel_no_ramdisk(self):
instance_data = dict(self.test_instance)
self._check_xml_and_uri(instance_data, expect_kernel=False,
expect_ramdisk=False, rescue=instance_data)
def test_xml_and_uri_rescue_no_kernel(self):
instance_data = dict(self.test_instance)
instance_data['ramdisk_id'] = 'aki-deadbeef'
self._check_xml_and_uri(instance_data, expect_kernel=False,
expect_ramdisk=True, rescue=instance_data)
def test_xml_and_uri_rescue_no_ramdisk(self):
instance_data = dict(self.test_instance)
instance_data['kernel_id'] = 'aki-deadbeef'
self._check_xml_and_uri(instance_data, expect_kernel=True,
expect_ramdisk=False, rescue=instance_data)
def test_xml_uuid(self):
self._check_xml_and_uuid(self.test_image_meta)
def test_lxc_container_and_uri(self):
instance_data = dict(self.test_instance)
self._check_xml_and_container(instance_data)
def test_xml_disk_prefix(self):
instance_data = dict(self.test_instance)
self._check_xml_and_disk_prefix(instance_data, None)
def test_xml_user_specified_disk_prefix(self):
instance_data = dict(self.test_instance)
self._check_xml_and_disk_prefix(instance_data, 'sd')
def test_xml_disk_driver(self):
instance_data = dict(self.test_instance)
self._check_xml_and_disk_driver(instance_data)
def test_xml_disk_bus_virtio(self):
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
self._check_xml_and_disk_bus(image_meta,
None,
(("disk", "virtio", "vda"),))
def test_xml_disk_bus_ide(self):
# It's necessary to check if the architecture is power, because
# power doesn't have support to ide, and so libvirt translate
# all ide calls to scsi
expected = {fields.Architecture.PPC: ("cdrom", "scsi", "sda"),
fields.Architecture.PPC64: ("cdrom", "scsi", "sda"),
fields.Architecture.PPC64LE: ("cdrom", "scsi", "sda"),
fields.Architecture.AARCH64: ("cdrom", "scsi", "sda")}
expec_val = expected.get(blockinfo.libvirt_utils.get_arch({}),
("cdrom", "ide", "hda"))
image_meta = objects.ImageMeta.from_dict({
"disk_format": "iso"})
self._check_xml_and_disk_bus(image_meta,
None,
(expec_val,))
def test_xml_disk_bus_sata(self):
# NOTE(sean-k-mooney): here we assert that when
# root_device_name is set in the block_device_info
# and hw_disk_bus is set in the image properties,
# we use the property value
expected = ("disk", "sata", "vda")
image_meta = objects.ImageMeta.from_dict({"properties": {
"hw_disk_bus": "sata"}})
block_device_info = {'root_device_name': "vda"}
self._check_xml_and_disk_bus(image_meta,
block_device_info,
(expected,))
def test_xml_disk_bus_ide_and_virtio(self):
# It's necessary to check if the architecture is power, because
# power doesn't have support to ide, and so libvirt translate
# all ide calls to scsi
expected = {fields.Architecture.PPC: ("cdrom", "scsi", "sda"),
fields.Architecture.PPC64: ("cdrom", "scsi", "sda"),
fields.Architecture.PPC64LE: ("cdrom", "scsi", "sda"),
fields.Architecture.AARCH64: ("cdrom", "scsi", "sda")}
swap = {'device_name': '/dev/vdc',
'swap_size': 1}
ephemerals = [{'device_type': 'disk',
'disk_bus': 'virtio',
'device_name': '/dev/vdb',
'size': 1}]
block_device_info = {
'swap': swap,
'ephemerals': ephemerals}
expec_val = expected.get(blockinfo.libvirt_utils.get_arch({}),
("cdrom", "ide", "hda"))
image_meta = objects.ImageMeta.from_dict({
"disk_format": "iso"})
self._check_xml_and_disk_bus(image_meta,
block_device_info,
(expec_val,
("disk", "virtio", "vdb"),
("disk", "virtio", "vdc")))
@mock.patch.object(host.Host, 'get_guest')
def test_instance_exists(self, mock_get_guest):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertTrue(drvr.instance_exists(None))
mock_get_guest.side_effect = exception.InstanceNotFound(
instance_id='something')
self.assertFalse(drvr.instance_exists(None))
mock_get_guest.side_effect = exception.InternalError(err='something')
self.assertFalse(drvr.instance_exists(None))
def test_estimate_instance_overhead_spawn(self):
# test that method when called with instance ref
instance_topology = objects.InstanceNUMATopology(
emulator_threads_policy=(
fields.CPUEmulatorThreadsPolicy.ISOLATE),
cells=[objects.InstanceNUMACell(
id=0, cpuset=set([0]), memory=1024)])
instance_info = objects.Instance(**self.test_instance)
instance_info.numa_topology = instance_topology
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
overhead = drvr.estimate_instance_overhead(instance_info)
self.assertEqual(1, overhead['vcpus'])
def test_estimate_instance_overhead_spawn_no_overhead(self):
# test that method when called with instance ref, no overhead
instance_topology = objects.InstanceNUMATopology(
emulator_threads_policy=(
fields.CPUEmulatorThreadsPolicy.SHARE),
cells=[objects.InstanceNUMACell(
id=0, cpuset=set([0]), memory=1024)])
instance_info = objects.Instance(**self.test_instance)
instance_info.numa_topology = instance_topology
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
overhead = drvr.estimate_instance_overhead(instance_info)
self.assertEqual(0, overhead['vcpus'])
def test_estimate_instance_overhead_migrate(self):
# test that method when called with flavor ref
instance_info = objects.Flavor(extra_specs={
'hw:emulator_threads_policy': (
fields.CPUEmulatorThreadsPolicy.ISOLATE),
'hw:cpu_policy': fields.CPUAllocationPolicy.DEDICATED,
})
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
overhead = drvr.estimate_instance_overhead(instance_info)
self.assertEqual(1, overhead['vcpus'])
def test_estimate_instance_overhead_migrate_no_overhead(self):
# test that method when called with flavor ref, no overhead
instance_info = objects.Flavor(extra_specs={
'hw:emulator_threads_policy': (
fields.CPUEmulatorThreadsPolicy.SHARE),
'hw:cpu_policy': fields.CPUAllocationPolicy.DEDICATED,
})
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
overhead = drvr.estimate_instance_overhead(instance_info)
self.assertEqual(0, overhead['vcpus'])
def test_estimate_instance_overhead_usage(self):
# test that method when called with usage dict
instance_info = objects.Flavor(extra_specs={
'hw:emulator_threads_policy': (
fields.CPUEmulatorThreadsPolicy.ISOLATE),
'hw:cpu_policy': fields.CPUAllocationPolicy.DEDICATED,
})
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
overhead = drvr.estimate_instance_overhead(instance_info)
self.assertEqual(1, overhead['vcpus'])
def test_estimate_instance_overhead_usage_no_overhead(self):
# test that method when called with usage dict, no overhead
instance_info = objects.Flavor(extra_specs={
'hw:emulator_threads_policy': (
fields.CPUEmulatorThreadsPolicy.SHARE),
'hw:cpu_policy': fields.CPUAllocationPolicy.DEDICATED,
})
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
overhead = drvr.estimate_instance_overhead(instance_info)
self.assertEqual(0, overhead['vcpus'])
@mock.patch.object(host.Host, "list_instance_domains")
def test_list_instances(self, mock_list):
vm1 = FakeVirtDomain(id=3, name="instance00000001")
vm2 = FakeVirtDomain(id=17, name="instance00000002")
vm3 = FakeVirtDomain(name="instance00000003")
vm4 = FakeVirtDomain(name="instance00000004")
mock_list.return_value = [vm1, vm2, vm3, vm4]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
names = drvr.list_instances()
self.assertEqual(names[0], vm1.name())
self.assertEqual(names[1], vm2.name())
self.assertEqual(names[2], vm3.name())
self.assertEqual(names[3], vm4.name())
mock_list.assert_called_with(only_guests=True, only_running=False)
@mock.patch.object(host.Host, "list_instance_domains")
def test_list_instance_uuids(self, mock_list):
vm1 = FakeVirtDomain(id=3, name="instance00000001")
vm2 = FakeVirtDomain(id=17, name="instance00000002")
vm3 = FakeVirtDomain(name="instance00000003")
vm4 = FakeVirtDomain(name="instance00000004")
mock_list.return_value = [vm1, vm2, vm3, vm4]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
uuids = drvr.list_instance_uuids()
self.assertEqual(len(uuids), 4)
self.assertEqual(uuids[0], vm1.UUIDString())
self.assertEqual(uuids[1], vm2.UUIDString())
self.assertEqual(uuids[2], vm3.UUIDString())
self.assertEqual(uuids[3], vm4.UUIDString())
mock_list.assert_called_with(only_guests=True, only_running=False)
@mock.patch('nova.virt.libvirt.host.Host.get_online_cpus',
return_value=None)
@mock.patch('nova.virt.libvirt.host.Host.get_cpu_count',
return_value=4)
def test_get_host_vcpus_is_empty(self, get_cpu_count, get_online_cpus):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.flags(vcpu_pin_set="")
vcpus = drvr._get_vcpu_total()
self.assertEqual(4, vcpus)
@mock.patch('nova.virt.libvirt.host.Host.get_online_cpus')
def test_get_host_vcpus(self, get_online_cpus):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.flags(vcpu_pin_set="4-5")
get_online_cpus.return_value = set([4, 5, 6])
expected_vcpus = 2
vcpus = drvr._get_vcpu_total()
self.assertEqual(expected_vcpus, vcpus)
@mock.patch('nova.virt.libvirt.host.Host.get_online_cpus')
def test_get_host_vcpus_out_of_range(self, get_online_cpus):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.flags(vcpu_pin_set="4-6")
get_online_cpus.return_value = set([4, 5])
self.assertRaises(exception.Invalid, drvr._get_vcpu_total)
@mock.patch('nova.virt.libvirt.host.Host.get_online_cpus')
def test_get_host_vcpus_libvirt_error(self, get_online_cpus):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
not_supported_exc = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
'this function is not supported by the connection driver:'
' virNodeNumOfDevices',
error_code=fakelibvirt.VIR_ERR_NO_SUPPORT)
self.flags(vcpu_pin_set="4-6")
get_online_cpus.side_effect = not_supported_exc
self.assertRaises(exception.Invalid, drvr._get_vcpu_total)
@mock.patch('nova.virt.libvirt.host.Host.get_online_cpus')
def test_get_host_vcpus_libvirt_error_success(self, get_online_cpus):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
not_supported_exc = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
'this function is not supported by the connection driver:'
' virNodeNumOfDevices',
error_code=fakelibvirt.VIR_ERR_NO_SUPPORT)
self.flags(vcpu_pin_set="1")
get_online_cpus.side_effect = not_supported_exc
expected_vcpus = 1
vcpus = drvr._get_vcpu_total()
self.assertEqual(expected_vcpus, vcpus)
@mock.patch('nova.virt.libvirt.host.Host.get_cpu_count')
def test_get_host_vcpus_after_hotplug(self, get_cpu_count):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
get_cpu_count.return_value = 2
expected_vcpus = 2
vcpus = drvr._get_vcpu_total()
self.assertEqual(expected_vcpus, vcpus)
get_cpu_count.return_value = 3
expected_vcpus = 3
vcpus = drvr._get_vcpu_total()
self.assertEqual(expected_vcpus, vcpus)
@mock.patch.object(host.Host, "has_min_version", return_value=True)
def test_quiesce(self, mock_has_min_version):
self.create_fake_libvirt_mock(lookupByUUIDString=self.fake_lookup)
with mock.patch.object(FakeVirtDomain, "fsFreeze") as mock_fsfreeze:
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
instance = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(
{"properties": {"hw_qemu_guest_agent": "yes"}})
self.assertIsNone(drvr.quiesce(self.context, instance, image_meta))
mock_fsfreeze.assert_called_once_with()
@mock.patch.object(host.Host, "has_min_version", return_value=True)
def test_unquiesce(self, mock_has_min_version):
self.create_fake_libvirt_mock(getLibVersion=lambda: 1002005,
lookupByUUIDString=self.fake_lookup)
with mock.patch.object(FakeVirtDomain, "fsThaw") as mock_fsthaw:
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
instance = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(
{"properties": {"hw_qemu_guest_agent": "yes"}})
self.assertIsNone(drvr.unquiesce(self.context, instance,
image_meta))
mock_fsthaw.assert_called_once_with()
def test_create_snapshot_metadata(self):
base = objects.ImageMeta.from_dict(
{'disk_format': 'raw'})
instance_data = {'kernel_id': 'kernel',
'project_id': 'prj_id',
'ramdisk_id': 'ram_id',
'os_type': None}
instance = objects.Instance(**instance_data)
img_fmt = 'raw'
snp_name = 'snapshot_name'
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
ret = drvr._create_snapshot_metadata(base, instance, img_fmt, snp_name)
expected = {'status': 'active',
'name': snp_name,
'properties': {
'kernel_id': instance['kernel_id'],
'image_location': 'snapshot',
'image_state': 'available',
'owner_id': instance['project_id'],
'ramdisk_id': instance['ramdisk_id'],
},
'disk_format': img_fmt,
'container_format': 'bare',
}
self.assertEqual(ret, expected)
# simulate an instance with os_type field defined
# disk format equals to ami
# container format not equals to bare
instance['os_type'] = 'linux'
base = objects.ImageMeta.from_dict(
{'disk_format': 'ami',
'container_format': 'test_container'})
expected['properties']['os_type'] = instance['os_type']
expected['disk_format'] = base.disk_format
expected['container_format'] = base.container_format
ret = drvr._create_snapshot_metadata(base, instance, img_fmt, snp_name)
self.assertEqual(ret, expected)
def test_get_volume_driver(self):
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
connection_info = {'driver_volume_type': 'fake',
'data': {'device_path': '/fake',
'access_mode': 'rw'}}
driver = conn._get_volume_driver(connection_info)
result = isinstance(driver, volume_drivers.LibvirtFakeVolumeDriver)
self.assertTrue(result)
def test_get_volume_driver_unknown(self):
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
connection_info = {'driver_volume_type': 'unknown',
'data': {'device_path': '/fake',
'access_mode': 'rw'}}
self.assertRaises(
exception.VolumeDriverNotFound,
conn._get_volume_driver,
connection_info
)
def _fake_libvirt_config_guest_disk(self):
fake_config = vconfig.LibvirtConfigGuestDisk()
fake_config.source_type = "network"
fake_config.source_device = "fake-type"
fake_config.driver_name = "qemu"
fake_config.driver_format = "raw"
fake_config.driver_cache = "none"
fake_config.source_protocol = "fake"
fake_config.source_name = "fake"
fake_config.target_bus = "fake-bus"
fake_config.target_dev = "vdb"
return fake_config
@mock.patch.object(volume_drivers.LibvirtFakeVolumeDriver, 'get_config')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_set_cache_mode')
def test_get_volume_config(self, _set_cache_mode, get_config):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
connection_info = {'driver_volume_type': 'fake',
'data': {'device_path': '/fake',
'access_mode': 'rw'}}
disk_info = {'bus': 'fake-bus', 'type': 'fake-type',
'dev': 'vdb'}
config_guest_disk = self._fake_libvirt_config_guest_disk()
get_config.return_value = copy.deepcopy(config_guest_disk)
config = drvr._get_volume_config(connection_info, disk_info)
get_config.assert_called_once_with(connection_info, disk_info)
_set_cache_mode.assert_called_once_with(config)
self.assertEqual(config_guest_disk.to_xml(), config.to_xml())
@mock.patch.object(libvirt_driver.LibvirtDriver, '_get_volume_driver')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_attach_encryptor')
def test_connect_volume_encryption_success(
self, mock_attach_encryptor, mock_get_volume_driver):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_volume_driver = mock.MagicMock(
spec=volume_drivers.LibvirtBaseVolumeDriver)
mock_get_volume_driver.return_value = mock_volume_driver
connection_info = {'driver_volume_type': 'fake',
'data': {'device_path': '/fake',
'access_mode': 'rw',
'volume_id': uuids.volume_id}}
encryption = {'provider': encryptors.LUKS,
'encryption_key_id': uuids.encryption_key_id}
instance = mock.sentinel.instance
drvr._connect_volume(self.context, connection_info, instance,
encryption=encryption)
mock_get_volume_driver.assert_called_once_with(connection_info)
mock_volume_driver.connect_volume.assert_called_once_with(
connection_info, instance)
mock_attach_encryptor.assert_called_once_with(
self.context, connection_info, encryption, True)
mock_volume_driver.disconnect_volume.assert_not_called()
@mock.patch.object(libvirt_driver.LibvirtDriver, '_get_volume_driver')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_attach_encryptor')
def test_connect_volume_encryption_fail(
self, mock_attach_encryptor, mock_get_volume_driver):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_volume_driver = mock.MagicMock(
spec=volume_drivers.LibvirtBaseVolumeDriver)
mock_get_volume_driver.return_value = mock_volume_driver
connection_info = {'driver_volume_type': 'fake',
'data': {'device_path': '/fake',
'access_mode': 'rw',
'volume_id': uuids.volume_id}}
encryption = {'provider': encryptors.LUKS,
'encryption_key_id': uuids.encryption_key_id}
instance = mock.sentinel.instance
mock_attach_encryptor.side_effect = processutils.ProcessExecutionError
self.assertRaises(processutils.ProcessExecutionError,
drvr._connect_volume,
self.context, connection_info, instance,
encryption=encryption)
mock_get_volume_driver.assert_called_once_with(connection_info)
mock_volume_driver.connect_volume.assert_called_once_with(
connection_info, instance)
mock_attach_encryptor.assert_called_once_with(
self.context, connection_info, encryption, True)
mock_volume_driver.disconnect_volume.assert_called_once_with(
connection_info, instance)
@mock.patch.object(key_manager, 'API')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_get_volume_encryption')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_use_native_luks')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_get_volume_encryptor')
@mock.patch('nova.virt.libvirt.host.Host')
@mock.patch('os_brick.encryptors.luks.is_luks')
def test_connect_volume_native_luks(self, mock_is_luks, mock_host,
mock_get_volume_encryptor, mock_use_native_luks,
mock_get_volume_encryption, mock_get_key_mgr):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
connection_info = {'driver_volume_type': 'fake',
'data': {'device_path': '/fake',
'access_mode': 'rw',
'volume_id': uuids.volume_id}}
encryption = {'provider': encryptors.LUKS,
'encryption_key_id': uuids.encryption_key_id}
instance = mock.sentinel.instance
# Mock out the encryptors
mock_encryptor = mock.Mock()
mock_get_volume_encryptor.return_value = mock_encryptor
mock_is_luks.return_value = True
# Mock out the key manager
key = u'3734363537333734'
key_encoded = binascii.unhexlify(key)
mock_key = mock.Mock()
mock_key_mgr = mock.Mock()
mock_get_key_mgr.return_value = mock_key_mgr
mock_key_mgr.get.return_value = mock_key
mock_key.get_encoded.return_value = key_encoded
# assert that the secret is created for the encrypted volume during
# _connect_volume when use_native_luks is True
mock_get_volume_encryption.return_value = encryption
mock_use_native_luks.return_value = True
drvr._connect_volume(self.context, connection_info, instance,
encryption=encryption)
drvr._host.create_secret.assert_called_once_with('volume',
uuids.volume_id, password=key)
mock_encryptor.attach_volume.assert_not_called()
# assert that the encryptor is used if use_native_luks is False
drvr._host.create_secret.reset_mock()
mock_get_volume_encryption.reset_mock()
mock_use_native_luks.return_value = False
drvr._connect_volume(self.context, connection_info, instance,
encryption=encryption)
drvr._host.create_secret.assert_not_called()
mock_encryptor.attach_volume.assert_called_once_with(self.context,
**encryption)
# assert that we format the volume if is_luks is False
mock_use_native_luks.return_value = True
mock_is_luks.return_value = False
drvr._connect_volume(self.context, connection_info, instance,
encryption=encryption)
mock_encryptor._format_volume.assert_called_once_with(key,
**encryption)
# assert that os-brick is used when allow_native_luks is False
mock_encryptor.attach_volume.reset_mock()
mock_is_luks.return_value = True
drvr._connect_volume(self.context, connection_info, instance,
encryption=encryption, allow_native_luks=False)
mock_encryptor.attach_volume.assert_called_once_with(self.context,
**encryption)
@mock.patch.object(libvirt_driver.LibvirtDriver, '_get_volume_encryptor')
def test_disconnect_volume_native_luks(self, mock_get_volume_encryptor):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._host = mock.Mock()
drvr._host.find_secret.return_value = mock.Mock()
connection_info = {'driver_volume_type': 'fake',
'data': {'device_path': '/fake',
'access_mode': 'rw',
'volume_id': uuids.volume_id}}
encryption = {'provider': encryptors.LUKS,
'encryption_key_id': uuids.encryption_key_id}
instance = mock.sentinel.instance
# Mock out the encryptors
mock_encryptor = mock.Mock()
mock_get_volume_encryptor.return_value = mock_encryptor
# assert that a secret is deleted if found
drvr._disconnect_volume(self.context, connection_info, instance)
drvr._host.delete_secret.assert_called_once_with('volume',
uuids.volume_id)
mock_encryptor.detach_volume.assert_not_called()
# assert that the encryptor is used if no secret is found
drvr._host.find_secret.reset_mock()
drvr._host.delete_secret.reset_mock()
drvr._host.find_secret.return_value = None
drvr._disconnect_volume(self.context, connection_info, instance,
encryption=encryption)
drvr._host.delete_secret.assert_not_called()
mock_encryptor.detach_volume.called_once_with(self.context,
**encryption)
@mock.patch.object(libvirt_driver.LibvirtDriver, '_detach_encryptor')
@mock.patch('nova.objects.InstanceList.get_uuids_by_host')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_driver')
@mock.patch('nova.volume.cinder.API.get')
def test_disconnect_multiattach_single_connection(
self, mock_volume_get, mock_get_volume_driver,
mock_get_instances, mock_detach_encryptor):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
mock_volume_driver = mock.MagicMock(
spec=volume_drivers.LibvirtBaseVolumeDriver)
mock_get_volume_driver.return_value = mock_volume_driver
attachments = (
[('70ab645f-6ffc-406a-b3d2-5007a0c01b82',
{'mountpoint': u'/dev/vdb',
'attachment_id': u'9402c249-99df-4f72-89e7-fd611493ee5d'}),
('00803490-f768-4049-aa7d-151f54e6311e',
{'mountpoint': u'/dev/vdb',
'attachment_id': u'd6128a7b-19c8-4a3e-8036-011396df95ac'})])
mock_volume_get.return_value = (
{'attachments': OrderedDict(attachments), 'multiattach': True,
'id': 'd30559cf-f092-4693-8589-0d0a1e7d9b1f'})
fake_connection_info = {
'multiattach': True,
'volume_id': 'd30559cf-f092-4693-8589-0d0a1e7d9b1f'}
fake_instance_1 = fake_instance.fake_instance_obj(
self.context,
host='fake-host-1')
mock_get_instances.return_value = (
['00803490-f768-4049-aa7d-151f54e6311e'])
drvr._disconnect_volume(
self.context, fake_connection_info, fake_instance_1)
mock_volume_driver.disconnect_volume.assert_called_once_with(
fake_connection_info, fake_instance_1)
@mock.patch.object(libvirt_driver.LibvirtDriver, '_detach_encryptor')
@mock.patch('nova.objects.InstanceList.get_uuids_by_host')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_driver')
@mock.patch('nova.volume.cinder.API.get')
def test_disconnect_multiattach_multi_connection(
self, mock_volume_get, mock_get_volume_driver,
mock_get_instances, mock_detach_encryptor):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
mock_volume_driver = mock.MagicMock(
spec=volume_drivers.LibvirtBaseVolumeDriver)
mock_get_volume_driver.return_value = mock_volume_driver
attachments = (
[('70ab645f-6ffc-406a-b3d2-5007a0c01b82',
{'mountpoint': u'/dev/vdb',
'attachment_id': u'9402c249-99df-4f72-89e7-fd611493ee5d'}),
('00803490-f768-4049-aa7d-151f54e6311e',
{'mountpoint': u'/dev/vdb',
'attachment_id': u'd6128a7b-19c8-4a3e-8036-011396df95ac'})])
mock_volume_get.return_value = (
{'attachments': OrderedDict(attachments), 'multiattach': True,
'id': 'd30559cf-f092-4693-8589-0d0a1e7d9b1f'})
fake_connection_info = {
'multiattach': True,
'volume_id': 'd30559cf-f092-4693-8589-0d0a1e7d9b1f'}
fake_instance_1 = fake_instance.fake_instance_obj(
self.context,
host='fake-host-1')
mock_get_instances.return_value = (
['00803490-f768-4049-aa7d-151f54e6311e',
'70ab645f-6ffc-406a-b3d2-5007a0c01b82'])
drvr._disconnect_volume(
self.context, fake_connection_info, fake_instance_1)
mock_volume_driver.disconnect_volume.assert_not_called()
def test_attach_invalid_volume_type(self):
self.create_fake_libvirt_mock()
libvirt_driver.LibvirtDriver._conn.lookupByUUIDString \
= self.fake_lookup
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertRaises(exception.VolumeDriverNotFound,
drvr.attach_volume, None,
{"driver_volume_type": "badtype"},
instance,
"/dev/sda")
def test_attach_blockio_invalid_hypervisor(self):
self.flags(virt_type='lxc', group='libvirt')
self.create_fake_libvirt_mock()
libvirt_driver.LibvirtDriver._conn.lookupByUUIDString \
= self.fake_lookup
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertRaises(exception.InvalidHypervisorType,
drvr.attach_volume, None,
{"driver_volume_type": "fake",
"data": {"logical_block_size": "4096",
"physical_block_size": "4096"}
},
instance,
"/dev/sda")
def _test_check_discard(self, mock_log, driver_discard=None,
bus=None, should_log=False):
mock_config = mock.Mock()
mock_config.driver_discard = driver_discard
mock_config.target_bus = bus
mock_instance = mock.Mock()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._check_discard_for_attach_volume(mock_config, mock_instance)
self.assertEqual(should_log, mock_log.called)
@mock.patch('nova.virt.libvirt.driver.LOG.debug')
def test_check_discard_for_attach_volume_no_unmap(self, mock_log):
self._test_check_discard(mock_log, driver_discard=None,
bus='scsi', should_log=False)
@mock.patch('nova.virt.libvirt.driver.LOG.debug')
def test_check_discard_for_attach_volume_blk_controller(self, mock_log):
self._test_check_discard(mock_log, driver_discard='unmap',
bus='virtio', should_log=True)
@mock.patch('nova.virt.libvirt.driver.LOG.debug')
def test_check_discard_for_attach_volume_valid_controller(self, mock_log):
self._test_check_discard(mock_log, driver_discard='unmap',
bus='scsi', should_log=False)
@mock.patch('nova.virt.libvirt.driver.LOG.debug')
def test_check_discard_for_attach_volume_blk_controller_no_unmap(self,
mock_log):
self._test_check_discard(mock_log, driver_discard=None,
bus='virtio', should_log=False)
@mock.patch('nova.virt.libvirt.blockinfo.get_info_from_bdm')
def test_attach_volume_with_libvirt_bug_breadcrumb(self, mock_get_info):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
connection_info = {"driver_volume_type": "fake",
"data": {"device_path": "/fake",
"access_mode": "rw"}}
bdm = {'device_name': 'vdb',
'disk_bus': 'fake-bus',
'device_type': 'fake-type'}
disk_info = {'bus': bdm['disk_bus'], 'type': bdm['device_type'],
'dev': 'vdb'}
libvirt_exc = fakelibvirt.make_libvirtError(fakelibvirt.libvirtError,
"unable to execute QEMU command 'object-add': Incorrect number"
" of padding bytes (56) found on decrypted data",
error_code=fakelibvirt.VIR_ERR_INTERNAL_ERROR)
with test.nested(
mock.patch.object(drvr._host, 'get_guest'),
mock.patch('nova.virt.libvirt.driver.LOG'),
mock.patch.object(drvr, '_connect_volume'),
mock.patch.object(drvr, '_disconnect_volume'),
mock.patch.object(drvr, '_get_volume_config'),
mock.patch.object(drvr, '_check_discard_for_attach_volume'),
mock.patch.object(drvr, '_build_device_metadata'),
) as (mock_get_guest, mock_log, mock_connect_volume,
mock_disconnect_volume, mock_get_volume_config,
mock_check_discard, mock_build_metadata):
mock_conf = mock.MagicMock()
mock_guest = mock.MagicMock()
mock_guest.attach_device.side_effect = libvirt_exc
mock_get_volume_config.return_value = mock_conf
mock_get_guest.return_value = mock_guest
mock_get_info.return_value = disk_info
mock_build_metadata.return_value = objects.InstanceDeviceMetadata()
self.assertRaises(fakelibvirt.libvirtError, drvr.attach_volume,
self.context, connection_info, instance, "/dev/vdb",
disk_bus=bdm['disk_bus'], device_type=bdm['device_type'])
mock_log.warning.assert_called_once()
mock_disconnect_volume.assert_called_once()
@mock.patch('nova.virt.libvirt.blockinfo.get_info_from_bdm')
def test_attach_volume_with_libvirt_exception(self, mock_get_info):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
connection_info = {"driver_volume_type": "fake",
"data": {"device_path": "/fake",
"access_mode": "rw"}}
bdm = {'device_name': 'vdb',
'disk_bus': 'fake-bus',
'device_type': 'fake-type'}
disk_info = {'bus': bdm['disk_bus'], 'type': bdm['device_type'],
'dev': 'vdb'}
libvirt_exc = fakelibvirt.make_libvirtError(fakelibvirt.libvirtError,
"Target vdb already exists', device is busy",
error_code=fakelibvirt.VIR_ERR_INTERNAL_ERROR)
with test.nested(
mock.patch.object(drvr._host, 'get_guest'),
mock.patch('nova.virt.libvirt.driver.LOG'),
mock.patch.object(drvr, '_connect_volume'),
mock.patch.object(drvr, '_disconnect_volume'),
mock.patch.object(drvr, '_get_volume_config'),
mock.patch.object(drvr, '_check_discard_for_attach_volume'),
mock.patch.object(drvr, '_build_device_metadata'),
) as (mock_get_guest, mock_log, mock_connect_volume,
mock_disconnect_volume, mock_get_volume_config,
mock_check_discard, mock_build_metadata):
mock_conf = mock.MagicMock()
mock_guest = mock.MagicMock()
mock_guest.attach_device.side_effect = libvirt_exc
mock_get_volume_config.return_value = mock_conf
mock_get_guest.return_value = mock_guest
mock_get_info.return_value = disk_info
mock_build_metadata.return_value = objects.InstanceDeviceMetadata()
self.assertRaises(fakelibvirt.libvirtError, drvr.attach_volume,
self.context, connection_info, instance, "/dev/vdb",
disk_bus=bdm['disk_bus'], device_type=bdm['device_type'])
mock_log.exception.assert_called_once_with(u'Failed to attach '
'volume at mountpoint: %s', '/dev/vdb', instance=instance)
mock_disconnect_volume.assert_called_once()
@mock.patch('nova.utils.get_image_from_system_metadata')
@mock.patch('nova.virt.libvirt.blockinfo.get_info_from_bdm')
@mock.patch('nova.virt.libvirt.host.Host._get_domain')
def test_attach_volume_with_vir_domain_affect_live_flag(self,
mock_get_domain, mock_get_info, get_image):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
image_meta = {}
get_image.return_value = image_meta
mock_dom = mock.MagicMock()
mock_get_domain.return_value = mock_dom
connection_info = {"driver_volume_type": "fake",
"data": {"device_path": "/fake",
"access_mode": "rw"}}
bdm = {'device_name': 'vdb',
'disk_bus': 'fake-bus',
'device_type': 'fake-type'}
disk_info = {'bus': bdm['disk_bus'], 'type': bdm['device_type'],
'dev': 'vdb'}
mock_get_info.return_value = disk_info
mock_conf = mock.MagicMock()
flags = (fakelibvirt.VIR_DOMAIN_AFFECT_CONFIG |
fakelibvirt.VIR_DOMAIN_AFFECT_LIVE)
with test.nested(
mock.patch.object(drvr, '_connect_volume'),
mock.patch.object(drvr, '_get_volume_config',
return_value=mock_conf),
mock.patch.object(drvr, '_check_discard_for_attach_volume'),
mock.patch.object(drvr, '_build_device_metadata'),
mock.patch.object(objects.Instance, 'save')
) as (mock_connect_volume, mock_get_volume_config, mock_check_discard,
mock_build_metadata, mock_save):
for state in (power_state.RUNNING, power_state.PAUSED):
mock_dom.info.return_value = [state, 512, 512, 2, 1234, 5678]
mock_build_metadata.return_value = \
objects.InstanceDeviceMetadata()
drvr.attach_volume(self.context, connection_info, instance,
"/dev/vdb", disk_bus=bdm['disk_bus'],
device_type=bdm['device_type'])
mock_get_domain.assert_called_with(instance)
mock_get_info.assert_called_with(
instance,
CONF.libvirt.virt_type,
test.MatchType(objects.ImageMeta),
bdm)
mock_connect_volume.assert_called_with(
self.context, connection_info, instance, encryption=None)
mock_get_volume_config.assert_called_with(
connection_info, disk_info)
mock_dom.attachDeviceFlags.assert_called_with(
mock_conf.to_xml(), flags=flags)
mock_check_discard.assert_called_with(mock_conf, instance)
mock_build_metadata.assert_called_with(self.context, instance)
mock_save.assert_called_with()
@mock.patch('nova.virt.libvirt.host.Host._get_domain')
def test_detach_volume_with_vir_domain_affect_live_flag(self,
mock_get_domain):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
mock_xml_with_disk = """<domain>
<devices>
<disk type='file'>
<source file='/path/to/fake-volume'/>
<target dev='vdc' bus='virtio'/>
</disk>
</devices>
</domain>"""
mock_xml_without_disk = """<domain>
<devices>
</devices>
</domain>"""
mock_dom = mock.MagicMock()
# Second time don't return anything about disk vdc so it looks removed
return_list = [mock_xml_with_disk, mock_xml_without_disk,
mock_xml_without_disk]
# Doubling the size of return list because we test with two guest power
# states
mock_dom.XMLDesc.side_effect = return_list + return_list
connection_info = {"driver_volume_type": "fake",
"data": {"device_path": "/fake",
"access_mode": "rw"}}
flags = (fakelibvirt.VIR_DOMAIN_AFFECT_CONFIG |
fakelibvirt.VIR_DOMAIN_AFFECT_LIVE)
with mock.patch.object(drvr, '_disconnect_volume') as \
mock_disconnect_volume:
for state in (power_state.RUNNING, power_state.PAUSED):
mock_dom.info.return_value = [state, 512, 512, 2, 1234, 5678]
mock_get_domain.return_value = mock_dom
drvr.detach_volume(
self.context, connection_info, instance, '/dev/vdc')
mock_get_domain.assert_called_with(instance)
mock_dom.detachDeviceFlags.assert_called_with(
"""<disk type="file" device="disk">
<source file="/path/to/fake-volume"/>
<target bus="virtio" dev="vdc"/>
</disk>
""", flags=flags)
mock_disconnect_volume.assert_called_with(
self.context, connection_info, instance, encryption=None)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._disconnect_volume')
@mock.patch('nova.virt.libvirt.host.Host._get_domain')
def test_detach_volume_disk_not_found(self, mock_get_domain,
mock_disconnect_volume):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
mock_xml_without_disk = """<domain>
<devices>
</devices>
</domain>"""
mock_dom = mock.MagicMock(return_value=mock_xml_without_disk)
connection_info = {"driver_volume_type": "fake",
"data": {"device_path": "/fake",
"access_mode": "rw"}}
mock_dom.info.return_value = [power_state.RUNNING, 512, 512, 2, 1234,
5678]
mock_get_domain.return_value = mock_dom
drvr.detach_volume(
self.context, connection_info, instance, '/dev/vdc')
mock_get_domain.assert_called_once_with(instance)
mock_disconnect_volume.assert_called_once_with(
self.context, connection_info, instance, encryption=None)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_encryptor')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._disconnect_volume')
@mock.patch('nova.virt.libvirt.host.Host._get_domain')
def test_detach_volume_disk_not_found_encryption(self, mock_get_domain,
mock_disconnect_volume,
mock_get_encryptor):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
mock_xml_without_disk = """<domain>
<devices>
</devices>
</domain>"""
mock_dom = mock.MagicMock(return_value=mock_xml_without_disk)
encryption = mock.MagicMock()
connection_info = {"driver_volume_type": "fake",
"data": {"device_path": "/fake",
"access_mode": "rw"}}
mock_dom.info.return_value = [power_state.RUNNING, 512, 512, 2, 1234,
5678]
mock_get_domain.return_value = mock_dom
drvr.detach_volume(self.context, connection_info, instance,
'/dev/vdc', encryption)
mock_disconnect_volume.assert_called_once_with(
self.context, connection_info, instance, encryption=encryption)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_driver')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_encryptor')
@mock.patch('nova.virt.libvirt.host.Host.get_guest')
def test_detach_volume_order_with_encryptors(self, mock_get_guest,
mock_get_encryptor, mock_get_volume_driver):
mock_volume_driver = mock.MagicMock(
spec=volume_drivers.LibvirtBaseVolumeDriver)
mock_get_volume_driver.return_value = mock_volume_driver
mock_guest = mock.MagicMock(spec=libvirt_guest.Guest)
mock_guest.get_power_state.return_value = power_state.RUNNING
mock_get_guest.return_value = mock_guest
mock_encryptor = mock.MagicMock(
spec=encryptors.nop.NoOpEncryptor)
mock_get_encryptor.return_value = mock_encryptor
mock_order = mock.Mock()
mock_order.attach_mock(mock_volume_driver.disconnect_volume,
'disconnect_volume')
mock_order.attach_mock(mock_guest.detach_device_with_retry(),
'detach_volume')
mock_order.attach_mock(mock_encryptor.detach_volume,
'detach_encryptor')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
connection_info = {"driver_volume_type": "fake",
"data": {"device_path": "/fake",
"access_mode": "rw"}}
encryption = {"provider": "NoOpEncryptor"}
drvr.detach_volume(
self.context, connection_info, instance, '/dev/vdc',
encryption=encryption)
mock_order.assert_has_calls([
mock.call.detach_volume(),
mock.call.detach_encryptor(**encryption),
mock.call.disconnect_volume(connection_info, instance)])
def test_extend_volume(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
connection_info = {
'driver_volume_type': 'fake',
'data': {'device_path': '/fake',
'access_mode': 'rw'}
}
new_size_in_kb = 20 * 1024 * 1024
guest = mock.Mock(spec=libvirt_guest.Guest)
# block_device
block_device = mock.Mock(spec=libvirt_guest.BlockDevice)
block_device.resize = mock.Mock()
guest.get_block_device = mock.Mock(return_value=block_device)
drvr._host.get_guest = mock.Mock(return_value=guest)
drvr._extend_volume = mock.Mock(return_value=new_size_in_kb)
for state in (power_state.RUNNING, power_state.PAUSED):
guest.get_power_state = mock.Mock(return_value=state)
drvr.extend_volume(connection_info,
instance, new_size_in_kb * 1024)
drvr._extend_volume.assert_called_with(connection_info,
instance,
new_size_in_kb * 1024)
guest.get_block_device.assert_called_with('/fake')
block_device.resize.assert_called_with(20480)
def test_extend_volume_with_volume_driver_without_support(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
with mock.patch.object(drvr, '_extend_volume',
side_effect=NotImplementedError()):
connection_info = {'driver_volume_type': 'fake'}
self.assertRaises(exception.ExtendVolumeNotSupported,
drvr.extend_volume,
connection_info, instance, 0)
def test_extend_volume_disk_not_found(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
connection_info = {
'driver_volume_type': 'fake',
'data': {'device_path': '/fake',
'access_mode': 'rw'}
}
new_size_in_kb = 20 * 1024 * 1024
xml_no_disk = "<domain><devices></devices></domain>"
dom = fakelibvirt.Domain(drvr._get_connection(), xml_no_disk, False)
guest = libvirt_guest.Guest(dom)
guest.get_power_state = mock.Mock(return_value=power_state.RUNNING)
drvr._host.get_guest = mock.Mock(return_value=guest)
drvr._extend_volume = mock.Mock(return_value=new_size_in_kb)
drvr.extend_volume(connection_info, instance, new_size_in_kb * 1024)
def test_extend_volume_with_instance_not_found(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
with test.nested(
mock.patch.object(host.Host, '_get_domain',
side_effect=exception.InstanceNotFound(
instance_id=instance.uuid)),
mock.patch.object(drvr, '_extend_volume')
) as (_get_domain, _extend_volume):
connection_info = {'driver_volume_type': 'fake'}
self.assertRaises(exception.InstanceNotFound,
drvr.extend_volume,
connection_info, instance, 0)
def test_extend_volume_with_libvirt_error(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
connection_info = {
'driver_volume_type': 'fake',
'data': {'device_path': '/fake',
'access_mode': 'rw'}
}
new_size_in_kb = 20 * 1024 * 1024
guest = mock.Mock(spec=libvirt_guest.Guest)
guest.get_power_state = mock.Mock(return_value=power_state.RUNNING)
# block_device
block_device = mock.Mock(spec=libvirt_guest.BlockDevice)
block_device.resize = mock.Mock(
side_effect=fakelibvirt.libvirtError('ERR'))
guest.get_block_device = mock.Mock(return_value=block_device)
drvr._host.get_guest = mock.Mock(return_value=guest)
drvr._extend_volume = mock.Mock(return_value=new_size_in_kb)
self.assertRaises(fakelibvirt.libvirtError,
drvr.extend_volume,
connection_info, instance, new_size_in_kb * 1024)
def test_extend_volume_with_no_device_path_attribute(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
connection_info = {
'serial': '58a84f6d-3f0c-4e19-a0af-eb657b790657',
'driver_volume_type': 'fake',
'data': {'cluster_name': 'fake',
'auth_enabled': False,
'volume_id': '58a84f6d-3f0c-4e19-a0af-eb657b790657',
'access_mode': 'rw'}
}
new_size_in_kb = 20 * 1024 * 1024
guest = mock.Mock(spec=libvirt_guest.Guest)
# block_device
block_device = mock.Mock(spec=libvirt_guest.BlockDevice)
block_device.resize = mock.Mock()
disk = mock.Mock(
spec=vconfig.LibvirtConfigGuestDisk,
serial='58a84f6d-3f0c-4e19-a0af-eb657b790657',
target_dev='vdb')
guest.get_block_device = mock.Mock(return_value=block_device)
guest.get_all_disks = mock.Mock(return_value=[disk])
drvr._host.get_guest = mock.Mock(return_value=guest)
drvr._extend_volume = mock.Mock(return_value=new_size_in_kb)
for state in (power_state.RUNNING, power_state.PAUSED):
guest.get_power_state = mock.Mock(return_value=state)
drvr.extend_volume(connection_info, instance,
new_size_in_kb * 1024)
drvr._extend_volume.assert_called_with(connection_info,
instance,
new_size_in_kb * 1024)
guest.get_block_device.assert_called_with('vdb')
block_device.resize.assert_called_with(20480)
def test_extend_volume_no_disk_found_by_serial(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
connection_info = {
'serial': '58a84f6d-3f0c-4e19-a0af-eb657b790657',
'driver_volume_type': 'fake',
'data': {'cluster_name': 'fake',
'auth_enabled': False,
'volume_id': '58a84f6d-3f0c-4e19-a0af-eb657b790657',
'access_mode': 'rw'}
}
new_size_in_kb = 20 * 1024 * 1024
guest = mock.Mock(spec=libvirt_guest.Guest)
# block_device
block_device = mock.Mock(spec=libvirt_guest.BlockDevice)
block_device.resize = mock.Mock()
disk = mock.Mock(
spec=vconfig.LibvirtConfigGuestDisk,
serial='12345678-abcd-abcd-abcd-0123456789012',
target_dev='vdb')
guest.get_block_device = mock.Mock(return_value=block_device)
guest.get_all_disks = mock.Mock(return_value=[disk])
drvr._host.get_guest = mock.Mock(return_value=guest)
drvr._extend_volume = mock.Mock(return_value=new_size_in_kb)
guest.get_power_state = mock.Mock(return_value=power_state.RUNNING)
self.assertRaises(
exception.VolumeNotFound,
drvr.extend_volume,
connection_info,
instance,
new_size_in_kb * 1024
)
@mock.patch('os_brick.encryptors.get_encryption_metadata')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_encryptor')
def test_use_encryptor_connection_info_incomplete(self,
mock_get_encryptor, mock_get_metadata):
"""Assert no attach attempt is made given incomplete connection_info.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
connection_info = {'data': {}}
drvr._attach_encryptor(self.context, connection_info, None, False)
mock_get_metadata.assert_not_called()
mock_get_encryptor.assert_not_called()
@mock.patch('os_brick.encryptors.get_encryption_metadata')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_encryptor')
def test_attach_encryptor_unencrypted_volume_meta_missing(self,
mock_get_encryptor, mock_get_metadata):
"""Assert that if not provided encryption metadata is fetched even
if the volume is ultimately unencrypted and no attempt to attach
is made.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
encryption = {}
connection_info = {'data': {'volume_id': uuids.volume_id}}
mock_get_metadata.return_value = encryption
drvr._attach_encryptor(self.context, connection_info, None, False)
mock_get_metadata.assert_called_once_with(self.context,
drvr._volume_api, uuids.volume_id, connection_info)
mock_get_encryptor.assert_not_called()
@mock.patch('os_brick.encryptors.get_encryption_metadata')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_encryptor')
def test_attach_encryptor_unencrypted_volume_meta_provided(self,
mock_get_encryptor, mock_get_metadata):
"""Assert that if an empty encryption metadata dict is provided that
there is no additional attempt to lookup the metadata or attach the
encryptor.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
encryption = {}
connection_info = {'data': {'volume_id': uuids.volume_id}}
drvr._attach_encryptor(self.context, connection_info, encryption,
False)
mock_get_metadata.assert_not_called()
mock_get_encryptor.assert_not_called()
@mock.patch('os_brick.encryptors.get_encryption_metadata')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_encryptor')
def test_attach_encryptor_encrypted_volume_meta_missing(self,
mock_get_encryptor, mock_get_metadata):
"""Assert that if missing the encryption metadata of an encrypted
volume is fetched and then used to attach the encryptor for the volume.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_encryptor = mock.MagicMock()
mock_get_encryptor.return_value = mock_encryptor
encryption = {'provider': 'luks', 'control_location': 'front-end'}
mock_get_metadata.return_value = encryption
connection_info = {'data': {'volume_id': uuids.volume_id}}
drvr._attach_encryptor(self.context, connection_info, None, False)
mock_get_metadata.assert_called_once_with(self.context,
drvr._volume_api, uuids.volume_id, connection_info)
mock_get_encryptor.assert_called_once_with(connection_info,
encryption)
mock_encryptor.attach_volume.assert_called_once_with(self.context,
**encryption)
@mock.patch('os_brick.encryptors.get_encryption_metadata')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_encryptor')
def test_attach_encryptor_encrypted_volume_meta_provided(self,
mock_get_encryptor, mock_get_metadata):
"""Assert that when provided there are no further attempts to fetch the
encryption metadata for the volume and that the provided metadata is
then used to attach the volume.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_encryptor = mock.MagicMock()
mock_get_encryptor.return_value = mock_encryptor
encryption = {'provider': 'luks', 'control_location': 'front-end'}
connection_info = {'data': {'volume_id': uuids.volume_id}}
drvr._attach_encryptor(self.context, connection_info,
encryption, False)
mock_get_metadata.assert_not_called()
mock_get_encryptor.assert_called_once_with(connection_info,
encryption)
mock_encryptor.attach_volume.assert_called_once_with(self.context,
**encryption)
@mock.patch.object(key_manager, 'API')
@mock.patch('os_brick.encryptors.get_encryption_metadata')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_encryptor')
def test_attach_encryptor_encrypted_native_luks_serial(self,
mock_get_encryptor, mock_get_metadata, mock_get_key_mgr):
"""Uses native luks encryption with a provider encryptor and the
connection_info has a serial but not volume_id in the 'data'
sub-dict.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_encryptor = mock.MagicMock()
mock_get_encryptor.return_value = mock_encryptor
encryption = {'provider': 'luks', 'control_location': 'front-end',
'encryption_key_id': uuids.encryption_key_id}
connection_info = {'serial': uuids.serial, 'data': {}}
# Mock out the key manager
key = u'3734363537333734'
key_encoded = binascii.unhexlify(key)
mock_key = mock.Mock()
mock_key_mgr = mock.Mock()
mock_get_key_mgr.return_value = mock_key_mgr
mock_key_mgr.get.return_value = mock_key
mock_key.get_encoded.return_value = key_encoded
with mock.patch.object(drvr, '_use_native_luks', return_value=True):
with mock.patch.object(drvr._host, 'create_secret') as crt_scrt:
drvr._attach_encryptor(self.context, connection_info,
encryption, allow_native_luks=True)
mock_get_metadata.assert_not_called()
mock_get_encryptor.assert_not_called()
crt_scrt.assert_called_once_with(
'volume', uuids.serial, password=key)
@mock.patch('os_brick.encryptors.get_encryption_metadata')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_encryptor')
def test_detach_encryptor_connection_info_incomplete(self,
mock_get_encryptor, mock_get_metadata):
"""Assert no detach attempt is made given incomplete connection_info.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
connection_info = {'data': {}}
drvr._detach_encryptor(self.context, connection_info, None)
mock_get_metadata.assert_not_called()
mock_get_encryptor.assert_not_called()
@mock.patch('os_brick.encryptors.get_encryption_metadata')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_encryptor')
def test_detach_encryptor_unencrypted_volume_meta_missing(self,
mock_get_encryptor, mock_get_metadata):
"""Assert that if not provided encryption metadata is fetched even
if the volume is ultimately unencrypted and no attempt to detach
is made.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
encryption = {}
connection_info = {'data': {'volume_id': uuids.volume_id}}
mock_get_metadata.return_value = encryption
drvr._detach_encryptor(self.context, connection_info, None)
mock_get_metadata.assert_called_once_with(self.context,
drvr._volume_api, uuids.volume_id, connection_info)
mock_get_encryptor.assert_not_called()
@mock.patch('os_brick.encryptors.get_encryption_metadata')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_encryptor')
def test_detach_encryptor_unencrypted_volume_meta_provided(self,
mock_get_encryptor, mock_get_metadata):
"""Assert that if an empty encryption metadata dict is provided that
there is no additional attempt to lookup the metadata or detach the
encryptor.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
encryption = {}
connection_info = {'data': {'volume_id': uuids.volume_id}}
drvr._detach_encryptor(self.context, connection_info, encryption)
mock_get_metadata.assert_not_called()
mock_get_encryptor.assert_not_called()
@mock.patch('os_brick.encryptors.get_encryption_metadata')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_encryptor')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._use_native_luks')
def test_detach_encryptor_encrypted_volume_meta_missing(self,
mock_use_native_luks, mock_get_encryptor, mock_get_metadata):
"""Assert that if missing the encryption metadata of an encrypted
volume is fetched and then used to detach the encryptor for the volume.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_encryptor = mock.MagicMock()
mock_get_encryptor.return_value = mock_encryptor
encryption = {'provider': 'luks', 'control_location': 'front-end'}
mock_get_metadata.return_value = encryption
connection_info = {'data': {'volume_id': uuids.volume_id}}
mock_use_native_luks.return_value = False
drvr._detach_encryptor(self.context, connection_info, None)
mock_get_metadata.assert_called_once_with(self.context,
drvr._volume_api, uuids.volume_id, connection_info)
mock_get_encryptor.assert_called_once_with(connection_info,
encryption)
mock_encryptor.detach_volume.assert_called_once_with(**encryption)
@mock.patch('os_brick.encryptors.get_encryption_metadata')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_encryptor')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._use_native_luks')
def test_detach_encryptor_encrypted_volume_meta_provided(self,
mock_use_native_luks, mock_get_encryptor, mock_get_metadata):
"""Assert that when provided there are no further attempts to fetch the
encryption metadata for the volume and that the provided metadata is
then used to detach the volume.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_encryptor = mock.MagicMock()
mock_get_encryptor.return_value = mock_encryptor
encryption = {'provider': 'luks', 'control_location': 'front-end'}
connection_info = {'data': {'volume_id': uuids.volume_id}}
mock_use_native_luks.return_value = False
drvr._detach_encryptor(self.context, connection_info, encryption)
mock_get_metadata.assert_not_called()
mock_get_encryptor.assert_called_once_with(connection_info,
encryption)
mock_encryptor.detach_volume.assert_called_once_with(**encryption)
@mock.patch('nova.virt.libvirt.host.Host.find_secret')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._use_native_luks')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_encryptor')
def test_detach_encryptor_native_luks_device_path_secret_missing(self,
mock_get_encryptor, mock_use_native_luks, mock_find_secret):
"""Assert that the encryptor is not built when native LUKS is
available, the associated volume secret is missing and device_path is
also missing from the connection_info.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
encryption = {'provider': 'luks', 'control_location': 'front-end',
'encryption_key_id': uuids.encryption_key_id}
connection_info = {'data': {'volume_id': uuids.volume_id}}
mock_find_secret.return_value = False
mock_use_native_luks.return_value = True
drvr._detach_encryptor(self.context, connection_info, encryption)
mock_find_secret.assert_called_once_with('volume', uuids.volume_id)
mock_get_encryptor.assert_not_called()
@mock.patch.object(host.Host, "has_min_version")
def test_use_native_luks(self, mock_has_min_version):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
# True only when the required QEMU and Libvirt versions are available
# on the host and a valid LUKS provider is present within the
# encryption metadata dict.
mock_has_min_version.return_value = True
self.assertFalse(drvr._use_native_luks({}))
self.assertFalse(drvr._use_native_luks({
'provider': 'nova.volume.encryptors.cryptsetup.CryptSetupEncryptor'
}))
self.assertFalse(drvr._use_native_luks({
'provider': 'CryptSetupEncryptor'}))
self.assertFalse(drvr._use_native_luks({
'provider': encryptors.PLAIN}))
self.assertTrue(drvr._use_native_luks({
'provider': 'nova.volume.encryptors.luks.LuksEncryptor'}))
self.assertTrue(drvr._use_native_luks({
'provider': 'LuksEncryptor'}))
self.assertTrue(drvr._use_native_luks({
'provider': encryptors.LUKS}))
# Always False when the required QEMU and Libvirt versions are not
# available on the host.
mock_has_min_version.return_value = False
self.assertFalse(drvr._use_native_luks({}))
self.assertFalse(drvr._use_native_luks({
'provider': 'nova.volume.encryptors.cryptsetup.CryptSetupEncryptor'
}))
self.assertFalse(drvr._use_native_luks({
'provider': 'CryptSetupEncryptor'}))
self.assertFalse(drvr._use_native_luks({
'provider': encryptors.PLAIN}))
self.assertFalse(drvr._use_native_luks({
'provider': 'nova.volume.encryptors.luks.LuksEncryptor'}))
self.assertFalse(drvr._use_native_luks({
'provider': 'LuksEncryptor'}))
self.assertFalse(drvr._use_native_luks({
'provider': encryptors.LUKS}))
def test_multi_nic(self):
network_info = _fake_network_info(self, 2)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
xml = drvr._get_guest_xml(self.context, instance_ref,
network_info, disk_info,
image_meta)
tree = etree.fromstring(xml)
interfaces = tree.findall("./devices/interface")
self.assertEqual(len(interfaces), 2)
self.assertEqual(interfaces[0].get('type'), 'bridge')
def _check_xml_and_container(self, instance):
instance_ref = objects.Instance(**instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
self.flags(virt_type='lxc', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertEqual(drvr._uri(), 'lxc:///')
network_info = _fake_network_info(self, 1)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
xml = drvr._get_guest_xml(self.context, instance_ref,
network_info, disk_info,
image_meta)
tree = etree.fromstring(xml)
check = [
(lambda t: t.find('.').get('type'), 'lxc'),
(lambda t: t.find('./os/type').text, 'exe'),
(lambda t: t.find('./devices/filesystem/target').get('dir'), '/')]
for i, (check, expected_result) in enumerate(check):
self.assertEqual(check(tree),
expected_result,
'%s failed common check %d' % (xml, i))
target = tree.find('./devices/filesystem/source').get('dir')
self.assertGreater(len(target), 0)
def _check_xml_and_disk_prefix(self, instance, prefix):
instance_ref = objects.Instance(**instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
def _get_prefix(p, default):
if p:
return p + 'a'
return default
type_disk_map = {
'qemu': [
(lambda t: t.find('.').get('type'), 'qemu'),
(lambda t: t.find('./devices/disk/target').get('dev'),
_get_prefix(prefix, 'vda'))],
'xen': [
(lambda t: t.find('.').get('type'), 'xen'),
(lambda t: t.find('./devices/disk/target').get('dev'),
_get_prefix(prefix, 'xvda'))],
'kvm': [
(lambda t: t.find('.').get('type'), 'kvm'),
(lambda t: t.find('./devices/disk/target').get('dev'),
_get_prefix(prefix, 'vda'))],
'uml': [
(lambda t: t.find('.').get('type'), 'uml'),
(lambda t: t.find('./devices/disk/target').get('dev'),
_get_prefix(prefix, 'ubda'))]
}
for (virt_type, checks) in type_disk_map.items():
self.flags(virt_type=virt_type, group='libvirt')
if prefix:
self.flags(disk_prefix=prefix, group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
network_info = _fake_network_info(self, 1)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
xml = drvr._get_guest_xml(self.context, instance_ref,
network_info, disk_info,
image_meta)
tree = etree.fromstring(xml)
for i, (check, expected_result) in enumerate(checks):
self.assertEqual(check(tree),
expected_result,
'%s != %s failed check %d' %
(check(tree), expected_result, i))
def _check_xml_and_disk_driver(self, image_meta):
os_open = os.open
directio_supported = True
def os_open_stub(path, flags, *args, **kwargs):
if flags & os.O_DIRECT:
if not directio_supported:
raise OSError(errno.EINVAL,
'%s: %s' % (os.strerror(errno.EINVAL), path))
flags &= ~os.O_DIRECT
return os_open(path, flags, *args, **kwargs)
self.stub_out('os.open', os_open_stub)
def connection_supports_direct_io_stub(dirpath):
return directio_supported
self.stub_out('nova.privsep.utils.supports_direct_io',
connection_supports_direct_io_stub)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
network_info = _fake_network_info(self, 1)
drv = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
xml = drv._get_guest_xml(self.context, instance_ref,
network_info, disk_info, image_meta)
tree = etree.fromstring(xml)
disks = tree.findall('./devices/disk/driver')
for guest_disk in disks:
self.assertEqual(guest_disk.get("cache"), "none")
directio_supported = False
# The O_DIRECT availability is cached on first use in
# LibvirtDriver, hence we re-create it here
drv = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
xml = drv._get_guest_xml(self.context, instance_ref,
network_info, disk_info, image_meta)
tree = etree.fromstring(xml)
disks = tree.findall('./devices/disk/driver')
for guest_disk in disks:
self.assertEqual(guest_disk.get("cache"), "writeback")
def _check_xml_and_disk_bus(self, image_meta,
block_device_info, wantConfig):
instance_ref = objects.Instance(**self.test_instance)
network_info = _fake_network_info(self, 1)
drv = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta,
block_device_info)
xml = drv._get_guest_xml(self.context, instance_ref,
network_info, disk_info, image_meta,
block_device_info=block_device_info)
tree = etree.fromstring(xml)
got_disks = tree.findall('./devices/disk')
got_disk_targets = tree.findall('./devices/disk/target')
for i in range(len(wantConfig)):
want_device_type = wantConfig[i][0]
want_device_bus = wantConfig[i][1]
want_device_dev = wantConfig[i][2]
got_device_type = got_disks[i].get('device')
got_device_bus = got_disk_targets[i].get('bus')
got_device_dev = got_disk_targets[i].get('dev')
self.assertEqual(got_device_type, want_device_type)
self.assertEqual(got_device_bus, want_device_bus)
self.assertEqual(got_device_dev, want_device_dev)
def _check_xml_and_uuid(self, image_meta):
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
network_info = _fake_network_info(self, 1)
drv = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
xml = drv._get_guest_xml(self.context, instance_ref,
network_info, disk_info, image_meta)
tree = etree.fromstring(xml)
self.assertEqual(tree.find('./uuid').text,
instance_ref['uuid'])
@mock.patch.object(libvirt_driver.LibvirtDriver,
"_get_host_sysinfo_serial_hardware",)
def _check_xml_and_uri(self, instance, mock_serial,
expect_ramdisk=False, expect_kernel=False,
rescue=None, expect_xen_hvm=False, xen_only=False):
mock_serial.return_value = "cef19ce0-0ca2-11df-855d-b19fbce37686"
instance_ref = objects.Instance(**instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
xen_vm_mode = fields.VMMode.XEN
if expect_xen_hvm:
xen_vm_mode = fields.VMMode.HVM
type_uri_map = {'qemu': ('qemu:///system',
[(lambda t: t.find('.').get('type'), 'qemu'),
(lambda t: t.find('./os/type').text,
fields.VMMode.HVM),
(lambda t: t.find('./devices/emulator'), None)]),
'kvm': ('qemu:///system',
[(lambda t: t.find('.').get('type'), 'kvm'),
(lambda t: t.find('./os/type').text,
fields.VMMode.HVM),
(lambda t: t.find('./devices/emulator'), None)]),
'uml': ('uml:///system',
[(lambda t: t.find('.').get('type'), 'uml'),
(lambda t: t.find('./os/type').text,
fields.VMMode.UML)]),
'xen': ('xen:///',
[(lambda t: t.find('.').get('type'), 'xen'),
(lambda t: t.find('./os/type').text,
xen_vm_mode)])}
if expect_xen_hvm or xen_only:
hypervisors_to_check = ['xen']
else:
hypervisors_to_check = ['qemu', 'kvm', 'xen']
for hypervisor_type in hypervisors_to_check:
check_list = type_uri_map[hypervisor_type][1]
if rescue:
suffix = '.rescue'
else:
suffix = ''
if expect_kernel:
check = (lambda t: self.relpath(t.find('./os/kernel').text).
split('/')[1], 'kernel' + suffix)
else:
check = (lambda t: t.find('./os/kernel'), None)
check_list.append(check)
if expect_kernel:
check = (lambda t: "no_timer_check" in t.find('./os/cmdline').
text, hypervisor_type == "qemu")
check_list.append(check)
# Hypervisors that only support vm_mode.HVM should not produce
# configuration that results in kernel arguments
if not expect_kernel and (hypervisor_type in
['qemu', 'kvm']):
check = (lambda t: t.find('./os/root'), None)
check_list.append(check)
check = (lambda t: t.find('./os/cmdline'), None)
check_list.append(check)
if expect_ramdisk:
check = (lambda t: self.relpath(t.find('./os/initrd').text).
split('/')[1], 'ramdisk' + suffix)
else:
check = (lambda t: t.find('./os/initrd'), None)
check_list.append(check)
if hypervisor_type in ['qemu', 'kvm']:
xpath = "./sysinfo/system/entry"
check = (lambda t: t.findall(xpath)[0].get("name"),
"manufacturer")
check_list.append(check)
check = (lambda t: t.findall(xpath)[0].text,
version.vendor_string())
check_list.append(check)
check = (lambda t: t.findall(xpath)[1].get("name"),
"product")
check_list.append(check)
check = (lambda t: t.findall(xpath)[1].text,
version.product_string())
check_list.append(check)
check = (lambda t: t.findall(xpath)[2].get("name"),
"version")
check_list.append(check)
# NOTE(sirp): empty strings don't roundtrip in lxml (they are
# converted to None), so we need an `or ''` to correct for that
check = (lambda t: t.findall(xpath)[2].text or '',
version.version_string_with_package())
check_list.append(check)
check = (lambda t: t.findall(xpath)[3].get("name"),
"serial")
check_list.append(check)
check = (lambda t: t.findall(xpath)[3].text,
"cef19ce0-0ca2-11df-855d-b19fbce37686")
check_list.append(check)
check = (lambda t: t.findall(xpath)[4].get("name"),
"uuid")
check_list.append(check)
check = (lambda t: t.findall(xpath)[4].text,
instance['uuid'])
check_list.append(check)
if hypervisor_type in ['qemu', 'kvm']:
check = (lambda t: t.findall('./devices/serial')[0].get(
'type'), 'pty')
check_list.append(check)
else:
check = (lambda t: t.find('./devices/console').get(
'type'), 'pty')
check_list.append(check)
common_checks = [
(lambda t: t.find('.').tag, 'domain'),
(lambda t: t.find('./memory').text, '2097152')]
if rescue:
common_checks += [
(lambda t: self.relpath(t.findall('./devices/disk/source')[0].
get('file')).split('/')[1], 'disk.rescue'),
(lambda t: self.relpath(t.findall('./devices/disk/source')[1].
get('file')).split('/')[1], 'disk')]
else:
common_checks += [(lambda t: self.relpath(t.findall(
'./devices/disk/source')[0].get('file')).split('/')[1],
'disk')]
common_checks += [(lambda t: self.relpath(t.findall(
'./devices/disk/source')[1].get('file')).split('/')[1],
'disk.local')]
for virt_type in hypervisors_to_check:
expected_uri = type_uri_map[virt_type][0]
checks = type_uri_map[virt_type][1]
self.flags(virt_type=virt_type, group='libvirt')
with mock.patch('nova.virt.libvirt.driver.libvirt') as old_virt:
del old_virt.VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertEqual(drvr._uri(), expected_uri)
network_info = _fake_network_info(self, 1)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta,
rescue=rescue)
xml = drvr._get_guest_xml(self.context, instance_ref,
network_info, disk_info,
image_meta,
rescue=rescue)
tree = etree.fromstring(xml)
for i, (check, expected_result) in enumerate(checks):
self.assertEqual(check(tree),
expected_result,
'%s != %s failed check %d' %
(check(tree), expected_result, i))
for i, (check, expected_result) in enumerate(common_checks):
self.assertEqual(check(tree),
expected_result,
'%s != %s failed common check %d' %
(check(tree), expected_result, i))
filterref = './devices/interface/filterref'
vif = network_info[0]
nic_id = vif['address'].lower().replace(':', '')
fw = firewall.NWFilterFirewall(drvr)
instance_filter_name = fw._instance_filter_name(instance_ref,
nic_id)
self.assertEqual(tree.find(filterref).get('filter'),
instance_filter_name)
# This test is supposed to make sure we don't
# override a specifically set uri
#
# Deliberately not just assigning this string to CONF.connection_uri
# and checking against that later on. This way we make sure the
# implementation doesn't fiddle around with the CONF.
testuri = 'something completely different'
self.flags(connection_uri=testuri, group='libvirt')
for virt_type in type_uri_map:
self.flags(virt_type=virt_type, group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertEqual(drvr._uri(), testuri)
def test_ensure_filtering_rules_for_instance_timeout(self):
# ensure_filtering_fules_for_instance() finishes with timeout.
# Preparing mocks
class FakeTime(object):
def __init__(self):
self.counter = 0
def sleep(self, t):
self.counter += t
fake_timer = FakeTime()
# _fake_network_info must be called before create_fake_libvirt_mock(),
# as _fake_network_info calls importutils.import_class() and
# create_fake_libvirt_mock() mocks importutils.import_class().
network_info = _fake_network_info(self, 1)
self.create_fake_libvirt_mock()
instance_ref = objects.Instance(**self.test_instance)
# Start test
try:
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.stub_out('nova.virt.libvirt.firewall.IptablesFirewallDriver.'
'setup_basic_filtering', lambda *a: None)
self.stub_out('nova.virt.libvirt.firewall.IptablesFirewallDriver.'
'prepare_instance_filter', lambda *a: None)
self.stub_out('nova.virt.libvirt.firewall.IptablesFirewallDriver.'
'instance_filter_exists', lambda *a: None)
self.stub_out('eventlet.greenthread.sleep',
lambda t: fake_timer.sleep(t))
drvr.ensure_filtering_rules_for_instance(instance_ref,
network_info)
except exception.NovaException as e:
msg = ('The firewall filter for %s does not exist' %
instance_ref['name'])
c1 = (0 <= six.text_type(e).find(msg))
self.assertTrue(c1)
self.assertEqual(29, fake_timer.counter, "Didn't wait the expected "
"amount of time")
@mock.patch.object(objects.Service, 'get_by_compute_host')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_create_shared_storage_test_file')
@mock.patch.object(fakelibvirt.Connection, 'compareCPU')
def test_check_can_live_migrate_dest_all_pass_with_block_migration(
self, mock_cpu, mock_test_file, mock_svc):
instance_ref = objects.Instance(**self.test_instance)
instance_ref.vcpu_model = test_vcpu_model.fake_vcpumodel
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
compute_info = {'disk_available_least': 400,
'cpu_info': 'asdf',
}
filename = "file"
# _check_cpu_match
mock_cpu.return_value = 1
# mounted_on_same_shared_storage
mock_test_file.return_value = filename
# No need for the src_compute_info
return_value = drvr.check_can_live_migrate_destination(self.context,
instance_ref, None, compute_info, True)
return_value.is_volume_backed = False
self.assertEqual({'filename': 'file',
'image_type': 'default',
'disk_available_mb': 409600,
'disk_over_commit': False,
'block_migration': True,
'is_volume_backed': False,
'dst_wants_file_backed_memory': False,
'file_backed_memory_discard': False,
'graphics_listen_addr_spice': '127.0.0.1',
'graphics_listen_addr_vnc': '127.0.0.1',
'serial_listen_addr': None},
return_value.obj_to_primitive()['nova_object.data'])
@mock.patch.object(objects.Service, 'get_by_compute_host')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_create_shared_storage_test_file')
@mock.patch.object(fakelibvirt.Connection, 'compareCPU')
def test_check_can_live_migrate_dest_all_pass_with_over_commit(
self, mock_cpu, mock_test_file, mock_svc):
instance_ref = objects.Instance(**self.test_instance)
instance_ref.vcpu_model = test_vcpu_model.fake_vcpumodel
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
compute_info = {'disk_available_least': -1000,
'free_disk_gb': 50,
'cpu_info': 'asdf',
}
filename = "file"
# _check_cpu_match
mock_cpu.return_value = 1
# mounted_on_same_shared_storage
mock_test_file.return_value = filename
# No need for the src_compute_info
return_value = drvr.check_can_live_migrate_destination(self.context,
instance_ref, None, compute_info, True, True)
return_value.is_volume_backed = False
self.assertEqual({'filename': 'file',
'image_type': 'default',
'disk_available_mb': 51200,
'disk_over_commit': True,
'block_migration': True,
'is_volume_backed': False,
'dst_wants_file_backed_memory': False,
'file_backed_memory_discard': False,
'graphics_listen_addr_spice': '127.0.0.1',
'graphics_listen_addr_vnc': '127.0.0.1',
'serial_listen_addr': None},
return_value.obj_to_primitive()['nova_object.data'])
@mock.patch.object(objects.Service, 'get_by_compute_host')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_create_shared_storage_test_file')
@mock.patch.object(fakelibvirt.Connection, 'compareCPU')
def test_check_can_live_migrate_dest_all_pass_no_block_migration(
self, mock_cpu, mock_test_file, mock_svc):
instance_ref = objects.Instance(**self.test_instance)
instance_ref.vcpu_model = test_vcpu_model.fake_vcpumodel
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
compute_info = {'disk_available_least': 400,
'cpu_info': 'asdf',
}
filename = "file"
# _check_cpu_match
mock_cpu.return_value = 1
# mounted_on_same_shared_storage
mock_test_file.return_value = filename
# No need for the src_compute_info
return_value = drvr.check_can_live_migrate_destination(self.context,
instance_ref, None, compute_info, False)
return_value.is_volume_backed = False
self.assertEqual({'filename': 'file',
'image_type': 'default',
'block_migration': False,
'disk_over_commit': False,
'disk_available_mb': 409600,
'is_volume_backed': False,
'dst_wants_file_backed_memory': False,
'file_backed_memory_discard': False,
'graphics_listen_addr_spice': '127.0.0.1',
'graphics_listen_addr_vnc': '127.0.0.1',
'serial_listen_addr': None},
return_value.obj_to_primitive()['nova_object.data'])
@mock.patch.object(objects.Service, 'get_by_compute_host')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_create_shared_storage_test_file',
return_value='fake')
@mock.patch.object(fakelibvirt.Connection, 'compareCPU')
def test_check_can_live_migrate_dest_fills_listen_addrs(
self, mock_cpu, mock_test_file, mock_svc):
# Tests that check_can_live_migrate_destination returns the listen
# addresses required by check_can_live_migrate_source.
self.flags(server_listen='192.0.2.12', group='vnc')
self.flags(server_listen='198.51.100.34', group='spice')
self.flags(proxyclient_address='203.0.113.56', group='serial_console')
self.flags(enabled=True, group='serial_console')
mock_cpu.return_value = 1
instance_ref = objects.Instance(**self.test_instance)
instance_ref.vcpu_model = test_vcpu_model.fake_vcpumodel
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
compute_info = {'cpu_info': 'asdf', 'disk_available_least': 1}
result = drvr.check_can_live_migrate_destination(
self.context, instance_ref, compute_info, compute_info)
self.assertEqual('192.0.2.12',
str(result.graphics_listen_addr_vnc))
self.assertEqual('198.51.100.34',
str(result.graphics_listen_addr_spice))
self.assertEqual('203.0.113.56',
str(result.serial_listen_addr))
@mock.patch.object(objects.Service, 'get_by_compute_host')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_create_shared_storage_test_file',
return_value='fake')
@mock.patch.object(fakelibvirt.Connection, 'compareCPU',
return_value=1)
def test_check_can_live_migrate_dest_ensure_serial_adds_not_set(
self, mock_cpu, mock_test_file, mock_svc):
self.flags(proxyclient_address='127.0.0.1', group='serial_console')
self.flags(enabled=False, group='serial_console')
instance_ref = objects.Instance(**self.test_instance)
instance_ref.vcpu_model = test_vcpu_model.fake_vcpumodel
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
compute_info = {'cpu_info': 'asdf', 'disk_available_least': 1}
result = drvr.check_can_live_migrate_destination(
self.context, instance_ref, compute_info, compute_info)
self.assertIsNone(result.serial_listen_addr)
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_create_shared_storage_test_file',
return_value='fake')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_compare_cpu')
def test_check_can_live_migrate_guest_cpu_none_model(
self, mock_cpu, mock_test_file):
# Tests that when instance.vcpu_model.model is None, the host cpu
# model is used for live migration.
instance_ref = objects.Instance(**self.test_instance)
instance_ref.vcpu_model = test_vcpu_model.fake_vcpumodel
instance_ref.vcpu_model.model = None
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
compute_info = {'cpu_info': 'asdf', 'disk_available_least': 1}
result = drvr.check_can_live_migrate_destination(
self.context, instance_ref, compute_info, compute_info)
result.is_volume_backed = False
mock_cpu.assert_called_once_with(None, 'asdf', instance_ref)
self.assertEqual({'filename': 'fake',
'image_type': CONF.libvirt.images_type,
'block_migration': False,
'disk_over_commit': False,
'disk_available_mb': 1024,
'is_volume_backed': False,
'dst_wants_file_backed_memory': False,
'file_backed_memory_discard': False,
'graphics_listen_addr_spice': '127.0.0.1',
'graphics_listen_addr_vnc': '127.0.0.1',
'serial_listen_addr': None},
result.obj_to_primitive()['nova_object.data'])
@mock.patch.object(objects.Service, 'get_by_compute_host')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_create_shared_storage_test_file')
@mock.patch.object(fakelibvirt.Connection, 'compareCPU')
def test_check_can_live_migrate_dest_no_instance_cpu_info(
self, mock_cpu, mock_test_file, mock_svc):
instance_ref = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
compute_info = {'cpu_info': jsonutils.dumps({
"vendor": "AMD",
"arch": fields.Architecture.I686,
"features": ["sse3"],
"model": "Opteron_G3",
"topology": {"cores": 2, "threads": 1, "sockets": 4}
}), 'disk_available_least': 1}
filename = "file"
# _check_cpu_match
mock_cpu.return_value = 1
# mounted_on_same_shared_storage
mock_test_file.return_value = filename
return_value = drvr.check_can_live_migrate_destination(self.context,
instance_ref, compute_info, compute_info, False)
# NOTE(danms): Compute manager would have set this, so set it here
return_value.is_volume_backed = False
self.assertEqual({'filename': 'file',
'image_type': 'default',
'block_migration': False,
'disk_over_commit': False,
'disk_available_mb': 1024,
'is_volume_backed': False,
'dst_wants_file_backed_memory': False,
'file_backed_memory_discard': False,
'graphics_listen_addr_spice': '127.0.0.1',
'graphics_listen_addr_vnc': '127.0.0.1',
'serial_listen_addr': None},
return_value.obj_to_primitive()['nova_object.data'])
@mock.patch.object(objects.Service, 'get_by_compute_host')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_create_shared_storage_test_file')
@mock.patch.object(fakelibvirt.Connection, 'compareCPU')
def test_check_can_live_migrate_dest_file_backed(
self, mock_cpu, mock_test_file, mock_svc):
self.flags(file_backed_memory=1024, group='libvirt')
instance_ref = objects.Instance(**self.test_instance)
instance_ref.vcpu_model = test_vcpu_model.fake_vcpumodel
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
compute_info = {'disk_available_least': 400,
'cpu_info': 'asdf',
}
filename = "file"
svc = objects.Service()
svc.version = 32
mock_svc.return_value = svc
# _check_cpu_match
mock_cpu.return_value = 1
# mounted_on_same_shared_storage
mock_test_file.return_value = filename
# No need for the src_compute_info
return_value = drvr.check_can_live_migrate_destination(self.context,
instance_ref, None, compute_info, False)
self.assertTrue(return_value.dst_wants_file_backed_memory)
@mock.patch.object(fakelibvirt.Connection, 'getVersion')
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion')
@mock.patch.object(objects.Service, 'get_by_compute_host')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_create_shared_storage_test_file')
@mock.patch.object(fakelibvirt.Connection, 'compareCPU')
def _test_check_can_live_migrate_dest_file_backed_discard(
self, libvirt_version, qemu_version, mock_cpu, mock_test_file,
mock_svc, mock_lib_version, mock_version):
self.flags(file_backed_memory=1024, group='libvirt')
mock_lib_version.return_value = libvirt_version
mock_version.return_value = qemu_version
instance_ref = objects.Instance(**self.test_instance)
instance_ref.vcpu_model = test_vcpu_model.fake_vcpumodel
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
compute_info = {'disk_available_least': 400,
'cpu_info': 'asdf',
}
filename = "file"
svc = objects.Service()
svc.version = 32
mock_svc.return_value = svc
# _check_cpu_match
mock_cpu.return_value = 1
# mounted_on_same_shared_storage
mock_test_file.return_value = filename
# No need for the src_compute_info
return_value = drvr.check_can_live_migrate_destination(self.context,
instance_ref, None, compute_info, False)
return return_value
def test_check_can_live_migrate_dest_file_backed_discard(self):
libvirt_version = versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_FILE_BACKED_DISCARD_VERSION)
qemu_version = versionutils.convert_version_to_int(
libvirt_driver.MIN_QEMU_FILE_BACKED_DISCARD_VERSION)
data = self._test_check_can_live_migrate_dest_file_backed_discard(
libvirt_version, qemu_version)
self.assertTrue(data.dst_wants_file_backed_memory)
self.assertTrue(data.file_backed_memory_discard)
def test_check_can_live_migrate_dest_file_backed_discard_bad_libvirt(self):
libvirt_version = versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_FILE_BACKED_DISCARD_VERSION) - 1
qemu_version = versionutils.convert_version_to_int(
libvirt_driver.MIN_QEMU_FILE_BACKED_DISCARD_VERSION)
data = self._test_check_can_live_migrate_dest_file_backed_discard(
libvirt_version, qemu_version)
self.assertTrue(data.dst_wants_file_backed_memory)
self.assertFalse(data.file_backed_memory_discard)
def test_check_can_live_migrate_dest_file_backed_discard_bad_qemu(self):
libvirt_version = versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_FILE_BACKED_DISCARD_VERSION)
qemu_version = versionutils.convert_version_to_int(
libvirt_driver.MIN_QEMU_FILE_BACKED_DISCARD_VERSION) - 1
data = self._test_check_can_live_migrate_dest_file_backed_discard(
libvirt_version, qemu_version)
self.assertTrue(data.dst_wants_file_backed_memory)
self.assertFalse(data.file_backed_memory_discard)
@mock.patch.object(objects.Service, 'get_by_compute_host')
@mock.patch.object(fakelibvirt.Connection, 'compareCPU')
def test_check_can_live_migrate_dest_incompatible_cpu_raises(
self, mock_cpu, mock_svc):
instance_ref = objects.Instance(**self.test_instance)
instance_ref.vcpu_model = test_vcpu_model.fake_vcpumodel
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
compute_info = {'cpu_info': 'asdf', 'disk_available_least': 1}
svc = objects.Service(host="old")
svc.version = 32
mock_svc.return_value = svc
mock_cpu.side_effect = exception.InvalidCPUInfo(reason='foo')
self.assertRaises(exception.InvalidCPUInfo,
drvr.check_can_live_migrate_destination,
self.context, instance_ref,
compute_info, compute_info, False)
@mock.patch.object(objects.Service, 'get_by_compute_host')
@mock.patch.object(fakelibvirt.Connection, 'compareCPU')
@mock.patch('nova.objects.Service.version', 30)
def test_check_can_live_migrate_dest_incompatible_file_backed(
self, mock_cpu, mock_svc):
self.flags(file_backed_memory=1024, group='libvirt')
instance_ref = objects.Instance(**self.test_instance)
# _check_cpu_match
mock_cpu.return_value = 1
svc = objects.Service(host="old")
svc.version = 31
mock_svc.return_value = svc
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
compute_info = {'cpu_info': 'asdf', 'disk_available_least': 1}
self.assertRaises(exception.MigrationPreCheckError,
drvr.check_can_live_migrate_destination,
self.context, instance_ref,
compute_info, compute_info, False)
@mock.patch.object(host.Host, 'compare_cpu')
@mock.patch.object(nova.virt.libvirt, 'config')
def test_compare_cpu_compatible_host_cpu(self, mock_vconfig, mock_compare):
instance = objects.Instance(**self.test_instance)
mock_compare.return_value = 5
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
ret = conn._compare_cpu(None, jsonutils.dumps(_fake_cpu_info),
instance)
self.assertIsNone(ret)
@mock.patch.object(host.Host, 'compare_cpu')
@mock.patch.object(nova.virt.libvirt, 'config')
def test_compare_cpu_handles_not_supported_error_gracefully(self,
mock_vconfig,
mock_compare):
instance = objects.Instance(**self.test_instance)
not_supported_exc = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
'this function is not supported by the connection driver:'
' virCompareCPU',
error_code=fakelibvirt.VIR_ERR_NO_SUPPORT)
mock_compare.side_effect = not_supported_exc
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
ret = conn._compare_cpu(None, jsonutils.dumps(_fake_cpu_info),
instance)
self.assertIsNone(ret)
@mock.patch.object(host.Host, 'compare_cpu')
@mock.patch.object(nova.virt.libvirt.LibvirtDriver,
'_vcpu_model_to_cpu_config')
def test_compare_cpu_compatible_guest_cpu(self, mock_vcpu_to_cpu,
mock_compare):
instance = objects.Instance(**self.test_instance)
mock_compare.return_value = 6
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
ret = conn._compare_cpu(jsonutils.dumps(_fake_cpu_info), None,
instance)
self.assertIsNone(ret)
def test_compare_cpu_virt_type_xen(self):
instance = objects.Instance(**self.test_instance)
self.flags(virt_type='xen', group='libvirt')
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
ret = conn._compare_cpu(None, None, instance)
self.assertIsNone(ret)
def test_compare_cpu_virt_type_qemu(self):
instance = objects.Instance(**self.test_instance)
self.flags(virt_type='qemu', group='libvirt')
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
ret = conn._compare_cpu(None, None, instance)
self.assertIsNone(ret)
@mock.patch.object(host.Host, 'compare_cpu')
@mock.patch.object(nova.virt.libvirt, 'config')
def test_compare_cpu_invalid_cpuinfo_raises(self, mock_vconfig,
mock_compare):
instance = objects.Instance(**self.test_instance)
mock_compare.return_value = 0
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertRaises(exception.InvalidCPUInfo,
conn._compare_cpu, None,
jsonutils.dumps(_fake_cpu_info),
instance)
@mock.patch.object(host.Host, 'compare_cpu')
@mock.patch.object(nova.virt.libvirt, 'config')
def test_compare_cpu_incompatible_cpu_raises(self, mock_vconfig,
mock_compare):
instance = objects.Instance(**self.test_instance)
mock_compare.side_effect = fakelibvirt.libvirtError('cpu')
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertRaises(exception.MigrationPreCheckError,
conn._compare_cpu, None,
jsonutils.dumps(_fake_cpu_info),
instance)
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_cleanup_shared_storage_test_file')
def test_check_can_live_migrate_dest_cleanup_works_correctly(
self, mock_clean):
objects.Instance(**self.test_instance)
dest_check_data = objects.LibvirtLiveMigrateData(
filename="file",
block_migration=True,
disk_over_commit=False,
disk_available_mb=1024)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr.cleanup_live_migration_destination_check(self.context,
dest_check_data)
mock_clean.assert_called_once_with('file')
@mock.patch('os.path.exists', return_value=True)
@mock.patch('os.utime')
def test_check_shared_storage_test_file_exists(self, mock_utime,
mock_path_exists):
tmpfile_path = os.path.join(CONF.instances_path, 'tmp123')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertTrue(drvr._check_shared_storage_test_file(
'tmp123', mock.sentinel.instance))
mock_utime.assert_called_once_with(CONF.instances_path, None)
mock_path_exists.assert_called_once_with(tmpfile_path)
@mock.patch('os.path.exists', return_value=False)
@mock.patch('os.utime')
def test_check_shared_storage_test_file_does_not_exist(self, mock_utime,
mock_path_exists):
tmpfile_path = os.path.join(CONF.instances_path, 'tmp123')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertFalse(drvr._check_shared_storage_test_file(
'tmp123', mock.sentinel.instance))
mock_utime.assert_called_once_with(CONF.instances_path, None)
mock_path_exists.assert_called_once_with(tmpfile_path)
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_check_shared_storage_test_file')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_is_shared_block_storage')
def _test_can_live_migrate_source(self, mock_is_shared, mock_check_shared,
block_migration=False,
is_shared_block_storage=False,
is_shared_instance_path=False,
disk_available_mb=1024,
exception=None):
instance = objects.Instance(**self.test_instance)
dest_check_data = objects.LibvirtLiveMigrateData(
filename='file',
image_type='default',
block_migration=block_migration,
disk_over_commit=False,
disk_available_mb=disk_available_mb)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_is_shared.return_value = is_shared_block_storage
mock_check_shared.return_value = is_shared_instance_path
if exception:
self.assertRaises(exception, drvr.check_can_live_migrate_source,
self.context, instance, dest_check_data)
else:
ret = drvr.check_can_live_migrate_source(self.context, instance,
dest_check_data)
mock_is_shared.assert_called_once_with(instance, dest_check_data, None)
mock_check_shared.assert_called_once_with('file', instance)
if exception:
return (instance, dest_check_data)
if block_migration:
self.assertIsInstance(ret, objects.LibvirtLiveMigrateData)
self.assertIn('is_shared_block_storage', ret)
self.assertFalse(ret.is_shared_block_storage)
self.assertIn('is_shared_instance_path', ret)
self.assertFalse(ret.is_shared_instance_path)
if is_shared_block_storage:
self.assertTrue(ret.is_shared_block_storage)
if is_shared_instance_path:
self.assertTrue(ret.is_shared_instance_path)
return (instance, dest_check_data)
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_assert_dest_node_has_enough_disk')
def test_check_can_live_migrate_source_block_migration(
self, mock_assert_dest):
instance, dest_check_data = self._test_can_live_migrate_source(
block_migration=True)
mock_assert_dest.assert_called_once_with(
self.context, instance, dest_check_data.disk_available_mb,
False, None)
def test_check_can_live_migrate_source_shared_block_storage(self):
self._test_can_live_migrate_source(is_shared_block_storage=True)
def test_check_can_live_migrate_source_shared_instance_path(self):
self._test_can_live_migrate_source(is_shared_instance_path=True)
def test_check_can_live_migrate_source_non_shared_fails(self):
self._test_can_live_migrate_source(
exception=exception.InvalidSharedStorage)
def test_check_can_live_migrate_source_shared_block_migration_fails(self):
self._test_can_live_migrate_source(
block_migration=True, is_shared_block_storage=True,
exception=exception.InvalidLocalStorage)
def test_check_can_live_migrate_shared_path_block_migration_fails(self):
self._test_can_live_migrate_source(
block_migration=True, is_shared_instance_path=True,
exception=exception.InvalidLocalStorage)
def test_check_can_live_migrate_non_shared_non_block_migration_fails(self):
self._test_can_live_migrate_source(
exception=exception.InvalidSharedStorage)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_get_instance_disk_info')
def test_check_can_live_migrate_source_with_dest_not_enough_disk(
self, mock_get_bdi):
mock_get_bdi.return_value = [{"virt_disk_size": 2}]
instance, _ = self._test_can_live_migrate_source(
block_migration=True, disk_available_mb=0,
exception=exception.MigrationError)
mock_get_bdi.assert_called_once_with(instance, None)
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_assert_dest_node_has_enough_disk')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_is_shared_block_storage', return_value=False)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_check_shared_storage_test_file', return_value=False)
def test_check_can_live_migrate_source_bm_with_bdm_tunnelled_error(
self, mock_check, mock_shared_block, mock_enough,
mock_min_version):
self.flags(live_migration_tunnelled=True,
group='libvirt')
bdi = {'block_device_mapping': ['bdm']}
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
dest_check_data = objects.LibvirtLiveMigrateData(
filename='file',
image_type='default',
block_migration=True,
disk_over_commit=False,
disk_available_mb=100)
drvr._parse_migration_flags()
self.assertRaises(exception.MigrationPreCheckError,
drvr.check_can_live_migrate_source,
self.context, instance, dest_check_data,
block_device_info=bdi)
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_assert_dest_node_has_enough_disk')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_is_shared_block_storage')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_check_shared_storage_test_file')
def _test_check_can_live_migrate_source_block_migration_none(
self, block_migrate, is_shared_instance_path, is_share_block,
mock_check, mock_shared_block, mock_enough, mock_verson):
mock_check.return_value = is_shared_instance_path
mock_shared_block.return_value = is_share_block
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
dest_check_data = objects.LibvirtLiveMigrateData(
filename='file',
image_type='default',
disk_over_commit=False,
disk_available_mb=100)
dest_check_data_ret = drvr.check_can_live_migrate_source(
self.context, instance, dest_check_data)
self.assertEqual(block_migrate, dest_check_data_ret.block_migration)
def test_check_can_live_migrate_source_block_migration_none_shared1(self):
self._test_check_can_live_migrate_source_block_migration_none(
False,
True,
False)
def test_check_can_live_migrate_source_block_migration_none_shared2(self):
self._test_check_can_live_migrate_source_block_migration_none(
False,
False,
True)
def test_check_can_live_migrate_source_block_migration_none_no_share(self):
self._test_check_can_live_migrate_source_block_migration_none(
True,
False,
False)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_assert_dest_node_has_enough_disk')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_assert_dest_node_has_enough_disk')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_is_shared_block_storage')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_check_shared_storage_test_file')
def test_check_can_live_migration_source_disk_over_commit_none(self,
mock_check, mock_shared_block, mock_enough, mock_disk_check):
mock_check.return_value = False
mock_shared_block.return_value = False
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
dest_check_data = objects.LibvirtLiveMigrateData(
filename='file',
image_type='default',
disk_available_mb=100)
drvr.check_can_live_migrate_source(
self.context, instance, dest_check_data)
self.assertFalse(mock_disk_check.called)
def _is_shared_block_storage_test_create_mocks(self, disks):
# Test data
instance_xml = ("<domain type='kvm'><name>instance-0000000a</name>"
"<devices>{}</devices></domain>")
disks_xml = ''
for dsk in disks:
if dsk['type'] is not 'network':
disks_xml = ''.join([disks_xml,
"<disk type='{type}'>"
"<driver name='qemu' type='{driver}'/>"
"<source {source}='{source_path}'/>"
"<target dev='{target_dev}' bus='virtio'/>"
"</disk>".format(**dsk)])
else:
disks_xml = ''.join([disks_xml,
"<disk type='{type}'>"
"<driver name='qemu' type='{driver}'/>"
"<source protocol='{source_proto}'"
"name='{source_image}' >"
"<host name='hostname' port='7000'/>"
"<config file='/path/to/file'/>"
"</source>"
"<target dev='{target_dev}'"
"bus='ide'/>".format(**dsk)])
# Preparing mocks
mock_virDomain = mock.Mock(fakelibvirt.virDomain)
mock_virDomain.XMLDesc = mock.Mock()
mock_virDomain.XMLDesc.return_value = (instance_xml.format(disks_xml))
mock_lookup = mock.Mock()
def mock_lookup_side_effect(name):
return mock_virDomain
mock_lookup.side_effect = mock_lookup_side_effect
mock_qemu_img_info = mock.Mock()
mock_qemu_img_info.return_value = mock.Mock(disk_size=10737418240,
virtual_size=10737418240)
mock_stat = mock.Mock()
mock_stat.return_value = mock.Mock(st_blocks=20971520)
mock_get_size = mock.Mock()
mock_get_size.return_value = 10737418240
return (mock_stat, mock_get_size, mock_qemu_img_info, mock_lookup)
def test_is_shared_block_storage_rbd(self):
self.flags(images_type='rbd', group='libvirt')
bdi = {'block_device_mapping': []}
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_get_instance_disk_info = mock.Mock()
data = objects.LibvirtLiveMigrateData(image_type='rbd')
with mock.patch.object(drvr, '_get_instance_disk_info',
mock_get_instance_disk_info):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertTrue(drvr._is_shared_block_storage(instance, data,
block_device_info=bdi))
self.assertEqual(0, mock_get_instance_disk_info.call_count)
self.assertTrue(drvr._is_storage_shared_with('foo', 'bar'))
def test_is_shared_block_storage_lvm(self):
self.flags(images_type='lvm', group='libvirt')
bdi = {'block_device_mapping': []}
instance = objects.Instance(**self.test_instance)
mock_get_instance_disk_info = mock.Mock()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
data = objects.LibvirtLiveMigrateData(image_type='lvm',
is_volume_backed=False,
is_shared_instance_path=False)
with mock.patch.object(drvr, '_get_instance_disk_info',
mock_get_instance_disk_info):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertFalse(drvr._is_shared_block_storage(
instance, data,
block_device_info=bdi))
self.assertEqual(0, mock_get_instance_disk_info.call_count)
def test_is_shared_block_storage_qcow2(self):
self.flags(images_type='qcow2', group='libvirt')
bdi = {'block_device_mapping': []}
instance = objects.Instance(**self.test_instance)
mock_get_instance_disk_info = mock.Mock()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
data = objects.LibvirtLiveMigrateData(image_type='qcow2',
is_volume_backed=False,
is_shared_instance_path=False)
with mock.patch.object(drvr, '_get_instance_disk_info',
mock_get_instance_disk_info):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertFalse(drvr._is_shared_block_storage(
instance, data,
block_device_info=bdi))
self.assertEqual(0, mock_get_instance_disk_info.call_count)
def test_is_shared_block_storage_rbd_only_source(self):
self.flags(images_type='rbd', group='libvirt')
bdi = {'block_device_mapping': []}
instance = objects.Instance(**self.test_instance)
mock_get_instance_disk_info = mock.Mock()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
data = objects.LibvirtLiveMigrateData(is_shared_instance_path=False,
is_volume_backed=False)
with mock.patch.object(drvr, '_get_instance_disk_info',
mock_get_instance_disk_info):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertFalse(drvr._is_shared_block_storage(
instance, data,
block_device_info=bdi))
self.assertEqual(0, mock_get_instance_disk_info.call_count)
def test_is_shared_block_storage_rbd_only_dest(self):
bdi = {'block_device_mapping': []}
instance = objects.Instance(**self.test_instance)
mock_get_instance_disk_info = mock.Mock()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
data = objects.LibvirtLiveMigrateData(image_type='rbd',
is_volume_backed=False,
is_shared_instance_path=False)
with mock.patch.object(drvr, '_get_instance_disk_info',
mock_get_instance_disk_info):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertFalse(drvr._is_shared_block_storage(
instance, data,
block_device_info=bdi))
self.assertEqual(0, mock_get_instance_disk_info.call_count)
def test_is_shared_block_storage_volume_backed(self):
disks = [{'type': 'block',
'driver': 'raw',
'source': 'dev',
'source_path': '/dev/disk',
'target_dev': 'vda'}]
bdi = {'block_device_mapping': [
{'connection_info': 'info', 'mount_device': '/dev/vda'}]}
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
(mock_stat, mock_get_size, mock_qemu_img_info, mock_lookup) =\
self._is_shared_block_storage_test_create_mocks(disks)
data = objects.LibvirtLiveMigrateData(is_volume_backed=True,
is_shared_instance_path=False)
with mock.patch.object(host.Host, '_get_domain', mock_lookup):
self.assertTrue(drvr._is_shared_block_storage(instance, data,
block_device_info = bdi))
mock_lookup.assert_called_once_with(instance)
def test_is_shared_block_storage_volume_backed_with_disk(self):
disks = [{'type': 'block',
'driver': 'raw',
'source': 'dev',
'source_path': '/dev/disk',
'target_dev': 'vda'},
{'type': 'file',
'driver': 'raw',
'source': 'file',
'source_path': '/instance/disk.local',
'target_dev': 'vdb'}]
bdi = {'block_device_mapping': [
{'connection_info': 'info', 'mount_device': '/dev/vda'}]}
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
(mock_stat, mock_get_size, mock_qemu_img_info, mock_lookup) =\
self._is_shared_block_storage_test_create_mocks(disks)
data = objects.LibvirtLiveMigrateData(is_volume_backed=True,
is_shared_instance_path=False)
with test.nested(
mock.patch('os.stat', mock_stat),
mock.patch('os.path.getsize', mock_get_size),
mock.patch.object(libvirt_driver.disk_api,
'get_disk_info', mock_qemu_img_info),
mock.patch.object(host.Host, '_get_domain', mock_lookup)):
self.assertFalse(drvr._is_shared_block_storage(
instance, data,
block_device_info = bdi))
mock_stat.assert_called_once_with('/instance/disk.local')
mock_get_size.assert_called_once_with('/instance/disk.local')
mock_lookup.assert_called_once_with(instance)
def test_is_shared_block_storage_nfs(self):
bdi = {'block_device_mapping': []}
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_image_backend = mock.MagicMock()
drvr.image_backend = mock_image_backend
mock_backend = mock.MagicMock()
mock_image_backend.backend.return_value = mock_backend
mock_backend.is_file_in_instance_path.return_value = True
mock_get_instance_disk_info = mock.Mock()
data = objects.LibvirtLiveMigrateData(
is_shared_instance_path=True,
image_type='foo')
with mock.patch.object(drvr, '_get_instance_disk_info',
mock_get_instance_disk_info):
self.assertTrue(drvr._is_shared_block_storage(
'instance', data, block_device_info=bdi))
self.assertEqual(0, mock_get_instance_disk_info.call_count)
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
@mock.patch.object(fakelibvirt.virDomain, "migrateToURI3")
@mock.patch.object(fakelibvirt.virDomain, "XMLDesc")
def test_live_migration_update_graphics_xml(self, mock_xml,
mock_migrateToURI3,
mock_min_version):
self.compute = manager.ComputeManager()
instance_ref = self.test_instance
target_connection = '127.0.0.2'
xml_tmpl = ("<domain type='kvm'>"
"<devices>"
"<graphics type='vnc' listen='{vnc}'>"
"<listen address='{vnc}'/>"
"</graphics>"
"<graphics type='spice' listen='{spice}'>"
"<listen address='{spice}'/>"
"</graphics>"
"</devices>"
"</domain>")
initial_xml = xml_tmpl.format(vnc='1.2.3.4',
spice='5.6.7.8')
target_xml = xml_tmpl.format(vnc='10.0.0.1',
spice='10.0.0.2')
target_xml = etree.tostring(etree.fromstring(target_xml),
encoding='unicode')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
# Preparing mocks
mock_xml.return_value = initial_xml
mock_migrateToURI3.side_effect = fakelibvirt.libvirtError("ERR")
disk_paths = ['vda', 'vdb']
_bandwidth = CONF.libvirt.live_migration_bandwidth
params = {
'migrate_uri': 'tcp://127.0.0.2',
'migrate_disks': disk_paths,
'bandwidth': _bandwidth,
'destination_xml': target_xml,
}
# start test
migrate_data = objects.LibvirtLiveMigrateData(
graphics_listen_addr_vnc='10.0.0.1',
graphics_listen_addr_spice='10.0.0.2',
serial_listen_addr='127.0.0.1',
target_connect_addr=target_connection,
bdms=[],
block_migration=False)
dom = fakelibvirt.virDomain
guest = libvirt_guest.Guest(dom)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertRaises(fakelibvirt.libvirtError,
drvr._live_migration_operation,
self.context, instance_ref, target_connection,
False, migrate_data, guest, disk_paths)
mock_xml.assert_called_once_with(
flags=fakelibvirt.VIR_DOMAIN_XML_MIGRATABLE)
mock_migrateToURI3.assert_called_once_with(
drvr._live_migration_uri(target_connection),
params=params, flags=0)
def test_live_migration_parallels_no_new_xml(self):
self.flags(virt_type='parallels', group='libvirt')
self.flags(enabled=False, group='vnc')
target_connection = None
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
instance_dict = dict(self.test_instance)
instance_dict.update({'host': 'fake',
'power_state': power_state.RUNNING,
'vm_state': vm_states.ACTIVE})
instance = objects.Instance(**instance_dict)
params = {
'bandwidth': CONF.libvirt.live_migration_bandwidth,
}
migrate_data = objects.LibvirtLiveMigrateData(
target_connect_addr=target_connection,
block_migration=False)
dom_mock = mock.MagicMock()
guest = libvirt_guest.Guest(dom_mock)
drvr._live_migration_operation(self.context, instance,
target_connection, False,
migrate_data, guest, None)
dom_mock.migrateToURI3.assert_called_once_with(
drvr._live_migration_uri(target_connection),
params=params, flags=0)
@mock.patch.object(utils, 'spawn')
@mock.patch.object(host.Host, 'get_guest')
@mock.patch.object(fakelibvirt.Connection, '_mark_running')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_live_migration_monitor')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_live_migration_copy_disk_paths')
def test_live_migration_parallels_no_migrate_disks(self,
mock_copy_disk_paths,
mock_monitor,
mock_running,
mock_guest,
mock_thread):
self.flags(virt_type='parallels', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
instance_dict = dict(self.test_instance)
instance_dict.update({'host': 'fake',
'power_state': power_state.RUNNING,
'vm_state': vm_states.ACTIVE})
instance = objects.Instance(**instance_dict)
migrate_data = objects.LibvirtLiveMigrateData(
block_migration=True)
dom = fakelibvirt.Domain(drvr._get_connection(), '<domain/>', True)
guest = libvirt_guest.Guest(dom)
mock_guest.return_value = guest
drvr._live_migration(self.context, instance, 'dest',
lambda: None, lambda: None, True,
migrate_data)
self.assertFalse(mock_copy_disk_paths.called)
mock_thread.assert_called_once_with(
drvr._live_migration_operation,
self.context, instance, 'dest', True,
migrate_data, guest, [])
@mock.patch.object(fakelibvirt.virDomain, "migrateToURI3")
@mock.patch.object(nova.virt.libvirt.migration,
'get_updated_guest_xml', return_value='')
@mock.patch.object(fakelibvirt.virDomain, "XMLDesc")
def test_live_migration_update_volume_xml(self, mock_xml,
mock_updated_guest_xml,
mock_migrateToURI3):
self.compute = manager.ComputeManager()
instance_ref = self.test_instance
target_connection = '127.0.0.2'
target_xml = self.device_xml_tmpl.format(
device_path='/dev/disk/by-path/'
'ip-1.2.3.4:3260-iqn.'
'cde.67890.opst-lun-Z')
# Prepare mocks
mock_xml.return_value = target_xml
disk_paths = ['vda', 'vdb']
params = {
'migrate_disks': disk_paths,
'migrate_uri': 'tcp://127.0.0.2',
'bandwidth': CONF.libvirt.live_migration_bandwidth,
'destination_xml': target_xml
}
# Start test
connection_info = {
u'driver_volume_type': u'iscsi',
u'serial': u'58a84f6d-3f0c-4e19-a0af-eb657b790657',
u'data': {
u'access_mode': u'rw', u'target_discovered': False,
u'target_iqn': u'ip-1.2.3.4:3260-iqn.cde.67890.opst-lun-Z',
u'volume_id': u'58a84f6d-3f0c-4e19-a0af-eb657b790657',
'device_path':
u'/dev/disk/by-path/ip-1.2.3.4:3260-iqn.cde.67890.opst-lun-Z',
},
}
bdm = objects.LibvirtLiveMigrateBDMInfo(
serial='58a84f6d-3f0c-4e19-a0af-eb657b790657',
bus='virtio', type='disk', dev='vdb',
connection_info=connection_info)
migrate_data = objects.LibvirtLiveMigrateData(
serial_listen_addr='',
target_connect_addr=target_connection,
bdms=[bdm],
block_migration=False)
dom = fakelibvirt.virDomain
guest = libvirt_guest.Guest(dom)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_updated_guest_xml.return_value = target_xml
drvr._live_migration_operation(
self.context, instance_ref, target_connection,
False, migrate_data, guest, disk_paths)
mock_migrateToURI3.assert_called_once_with(
drvr._live_migration_uri(target_connection),
params=params, flags=0)
mock_updated_guest_xml.assert_called_once_with(
guest, migrate_data, mock.ANY, get_vif_config=None)
def test_live_migration_update_vifs_xml(self):
"""Tests that when migrate_data.vifs is populated, the destination
guest xml is updated with the migrate_data.vifs configuration.
"""
instance = objects.Instance(**self.test_instance)
source_vif_normal = network_model.VIF(
id=uuids.port_id, type=network_model.VIF_TYPE_OVS,
vnic_type=network_model.VNIC_TYPE_NORMAL, details={'foo': 'bar'},
profile={'binding:host_id': 'fake-source-host'})
vif = objects.VIFMigrateData(port_id=uuids.port_id,
source_vif=source_vif_normal)
migrate_data = objects.LibvirtLiveMigrateData(
serial_listen_addr='',
target_connect_addr=None,
bdms=[],
block_migration=False,
vifs=[vif])
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
guest = libvirt_guest.Guest(mock.MagicMock())
fake_xml = '<domain type="qemu"/>'
def fake_get_updated_guest_xml(guest, migrate_data, get_volume_config,
get_vif_config=None):
self.assertIsNotNone(get_vif_config)
return fake_xml
@mock.patch.object(drvr, "detach_interface")
@mock.patch('nova.virt.libvirt.migration.get_updated_guest_xml',
side_effect=fake_get_updated_guest_xml)
@mock.patch.object(drvr._host, 'has_min_version', return_value=True)
@mock.patch.object(guest, 'migrate')
def _test_normal(migrate, has_min_version,
get_updated_guest_xml, detach):
drvr._live_migration_operation(
self.context, instance, 'dest.host', False,
migrate_data, guest, [])
get_updated_guest_xml.assert_called_once()
migrate.assert_called()
detach.assert_not_called()
_test_normal()
source_vif_direct = network_model.VIF(
id=uuids.port_id, type=network_model.VIF_TYPE_OVS,
vnic_type=network_model.VNIC_TYPE_DIRECT, details={'foo': 'bar'},
profile={'binding:host_id': 'fake-source-host'})
vif_direct = objects.VIFMigrateData(port_id=uuids.port_id,
source_vif=source_vif_direct)
migrate_data = objects.LibvirtLiveMigrateData(
serial_listen_addr='', target_connect_addr=None,
bdms=[], block_migration=False, vifs=[vif_direct])
@mock.patch.object(drvr, "detach_interface")
@mock.patch('nova.virt.libvirt.migration.get_updated_guest_xml',
side_effect=fake_get_updated_guest_xml)
@mock.patch.object(drvr._host, 'has_min_version', return_value=True)
@mock.patch.object(guest, 'migrate')
def _test_direct(migrate, has_min_version,
get_updated_guest_xml, detach):
drvr._live_migration_operation(
self.context, instance, 'dest.host', False,
migrate_data, guest, [])
get_updated_guest_xml.assert_called_once()
migrate.assert_called()
detach.asset_called()
_test_direct()
migrate_data = objects.LibvirtLiveMigrateData(
serial_listen_addr='', target_connect_addr=None,
bdms=[], block_migration=False, vifs=[vif, vif_direct])
@mock.patch.object(drvr, "detach_interface")
@mock.patch('nova.virt.libvirt.migration.get_updated_guest_xml',
side_effect=fake_get_updated_guest_xml)
@mock.patch.object(drvr._host, 'has_min_version', return_value=True)
@mock.patch.object(guest, 'migrate')
def _test_mix(migrate, has_min_version, get_updated_guest_xml, detach):
drvr._live_migration_operation(
self.context, instance, 'dest.host', False,
migrate_data, guest, [])
get_updated_guest_xml.assert_called_once()
migrate.assert_called()
detach.asset_called_once()
_test_mix()
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
@mock.patch.object(fakelibvirt.virDomain, "migrateToURI3")
@mock.patch.object(nova.virt.libvirt.migration,
'get_updated_guest_xml', return_value='')
@mock.patch.object(fakelibvirt.virDomain, "XMLDesc")
def test_live_migration_with_valid_target_connect_addr(self, mock_xml,
mock_updated_guest_xml,
mock_migrateToURI3,
mock_min_version):
self.compute = manager.ComputeManager()
instance_ref = self.test_instance
target_connection = '127.0.0.2'
target_xml = self.device_xml_tmpl.format(
device_path='/dev/disk/by-path/'
'ip-1.2.3.4:3260-iqn.'
'cde.67890.opst-lun-Z')
# Prepare mocks
mock_xml.return_value = target_xml
disk_paths = ['vda', 'vdb']
params = {
'migrate_disks': disk_paths,
'migrate_uri': 'tcp://127.0.0.2',
'bandwidth': CONF.libvirt.live_migration_bandwidth,
'destination_xml': target_xml,
}
# start test
connection_info = {
u'driver_volume_type': u'iscsi',
u'serial': u'58a84f6d-3f0c-4e19-a0af-eb657b790657',
u'data': {
u'access_mode': u'rw', u'target_discovered': False,
u'target_iqn': u'ip-1.2.3.4:3260-iqn.cde.67890.opst-lun-Z',
u'volume_id': u'58a84f6d-3f0c-4e19-a0af-eb657b790657',
'device_path':
u'/dev/disk/by-path/ip-1.2.3.4:3260-iqn.cde.67890.opst-lun-Z',
},
}
bdm = objects.LibvirtLiveMigrateBDMInfo(
serial='58a84f6d-3f0c-4e19-a0af-eb657b790657',
bus='virtio', type='disk', dev='vdb',
connection_info=connection_info)
migrate_data = objects.LibvirtLiveMigrateData(
serial_listen_addr='',
target_connect_addr=target_connection,
bdms=[bdm],
block_migration=False)
dom = fakelibvirt.virDomain
guest = libvirt_guest.Guest(dom)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_updated_guest_xml.return_value = target_xml
drvr._live_migration_operation(self.context, instance_ref,
target_connection, False, migrate_data,
guest, disk_paths)
mock_migrateToURI3.assert_called_once_with(
drvr._live_migration_uri(target_connection),
params=params, flags=0)
def test_update_volume_xml(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
initial_xml = self.device_xml_tmpl.format(
device_path='/dev/disk/by-path/'
'ip-1.2.3.4:3260-iqn.'
'abc.12345.opst-lun-X')
target_xml = self.device_xml_tmpl.format(
device_path='/dev/disk/by-path/'
'ip-1.2.3.4:3260-iqn.'
'cde.67890.opst-lun-Z')
target_xml = etree.tostring(etree.fromstring(target_xml),
encoding='unicode')
serial = "58a84f6d-3f0c-4e19-a0af-eb657b790657"
bdmi = objects.LibvirtLiveMigrateBDMInfo(serial=serial,
bus='virtio',
type='disk',
dev='vdb')
bdmi.connection_info = {u'driver_volume_type': u'iscsi',
'serial': u'58a84f6d-3f0c-4e19-a0af-eb657b790657',
u'data': {u'access_mode': u'rw', u'target_discovered': False,
u'target_iqn': u'ip-1.2.3.4:3260-iqn.cde.67890.opst-lun-Z',
u'volume_id': u'58a84f6d-3f0c-4e19-a0af-eb657b790657',
'device_path':
u'/dev/disk/by-path/ip-1.2.3.4:3260-iqn.cde.67890.opst-lun-Z'}}
conf = vconfig.LibvirtConfigGuestDisk()
conf.source_device = bdmi.type
conf.driver_name = "qemu"
conf.driver_format = "raw"
conf.driver_cache = "none"
conf.target_dev = bdmi.dev
conf.target_bus = bdmi.bus
conf.serial = bdmi.connection_info.get('serial')
conf.source_type = "block"
conf.source_path = bdmi.connection_info['data'].get('device_path')
guest = libvirt_guest.Guest(mock.MagicMock())
with test.nested(
mock.patch.object(drvr, '_get_volume_config',
return_value=conf),
mock.patch.object(guest, 'get_xml_desc',
return_value=initial_xml)):
config = libvirt_migrate.get_updated_guest_xml(guest,
objects.LibvirtLiveMigrateData(bdms=[bdmi]),
drvr._get_volume_config)
parser = etree.XMLParser(remove_blank_text=True)
config = etree.fromstring(config, parser)
target_xml = etree.fromstring(target_xml, parser)
self.assertEqual(etree.tostring(target_xml, encoding='unicode'),
etree.tostring(config, encoding='unicode'))
def test_live_migration_uri(self):
addresses = ('127.0.0.1', '127.0.0.1:4444', '[::1]:4444',
'[0:0:0:0:0:0:0:1]:4444', u'127.0.0.1', u'destination',
)
hypervisor_uri_map = (
('xen', 'xenmigr://%s/system'),
('kvm', 'qemu+tcp://%s/system'),
('qemu', 'qemu+tcp://%s/system'),
('parallels', 'parallels+tcp://%s/system'),
# anything else will return None
('lxc', None),
)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
for dest in addresses:
for hyperv, uri in hypervisor_uri_map:
self.flags(virt_type=hyperv, group='libvirt')
if uri is not None:
uri = uri % dest
self.assertEqual(uri, drvr._live_migration_uri(dest))
else:
self.assertRaises(exception.LiveMigrationURINotAvailable,
drvr._live_migration_uri,
dest)
def test_live_migration_uri_ipv6(self):
addresses = ('::1', '0:0:0:0:0:0:0:1', u'::1')
hypervisor_uri_map = (
('xen', 'xenmigr://[%s]/system'),
('kvm', 'qemu+tcp://[%s]/system'),
('qemu', 'qemu+tcp://[%s]/system'),
('parallels', 'parallels+tcp://[%s]/system'),
# anything else will return None
('lxc', None),
)
for dest in addresses:
for hyperv, uri in hypervisor_uri_map:
self.flags(virt_type=hyperv, group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
if uri is not None:
uri = uri % dest
self.assertEqual(uri, drvr._live_migration_uri(dest))
else:
self.assertRaises(exception.LiveMigrationURINotAvailable,
drvr._live_migration_uri,
dest)
def test_live_migration_uri_forced(self):
dest = 'destination'
for hyperv in ('kvm', 'xen'):
self.flags(virt_type=hyperv, group='libvirt')
forced_uri = 'foo://%s/bar'
self.flags(live_migration_uri=forced_uri, group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertEqual(forced_uri % dest, drvr._live_migration_uri(dest))
def test_live_migration_scheme(self):
self.flags(live_migration_scheme='ssh', group='libvirt')
dest = 'destination'
uri = 'qemu+ssh://%s/system'
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertEqual(uri % dest, drvr._live_migration_uri(dest))
def test_live_migration_scheme_does_not_override_uri(self):
forced_uri = 'qemu+ssh://%s/system'
self.flags(live_migration_uri=forced_uri, group='libvirt')
self.flags(live_migration_scheme='tcp', group='libvirt')
dest = 'destination'
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertEqual(forced_uri % dest, drvr._live_migration_uri(dest))
def test_migrate_uri(self):
hypervisor_uri_map = (
('xen', None),
('kvm', 'tcp://%s'),
('qemu', 'tcp://%s'),
)
dest = 'destination'
for hyperv, uri in hypervisor_uri_map:
self.flags(virt_type=hyperv, group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
if uri is not None:
uri = uri % dest
self.assertEqual(uri, drvr._migrate_uri(dest))
def test_migrate_uri_forced_live_migration_uri(self):
dest = 'destination'
self.flags(virt_type='kvm', group='libvirt')
forced_uri = 'qemu+tcp://user:pass@%s/system'
self.flags(live_migration_uri=forced_uri, group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertEqual('tcp://%s' % dest, drvr._migrate_uri(dest))
def test_migrate_uri_forced_live_migration_inboud_addr(self):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
addresses = ('127.0.0.1', '127.0.0.1:4444', '[::1]:4444',
'[0:0:0:0:0:0:0:1]:4444', u'127.0.0.1', u'destination',
)
for dest in addresses:
uri = 'tcp://%s'
result = drvr._migrate_uri(dest)
self.assertEqual(uri % dest, result)
self.assertIsInstance(result, str)
def test_migrate_uri_forced_live_migration_inboud_addr_ipv6(self):
self.flags(virt_type='kvm', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
addresses = ('::1', '0:0:0:0:0:0:0:1', u'::1')
for dest in addresses:
uri = 'tcp://[%s]'
result = drvr._migrate_uri(dest)
self.assertEqual(uri % dest, result)
self.assertIsInstance(result, str)
def test_update_volume_xml_no_serial(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
xml_tmpl = """
<domain type='kvm'>
<devices>
<disk type='block' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<source dev='{device_path}'/>
<target bus='virtio' dev='vdb'/>
<serial></serial>
<address type='pci' domain='0x0' bus='0x0' slot='0x04' \
function='0x0'/>
</disk>
</devices>
</domain>
"""
initial_xml = xml_tmpl.format(device_path='/dev/disk/by-path/'
'ip-1.2.3.4:3260-iqn.'
'abc.12345.opst-lun-X')
target_xml = xml_tmpl.format(device_path='/dev/disk/by-path/'
'ip-1.2.3.4:3260-iqn.'
'abc.12345.opst-lun-X')
target_xml = etree.tostring(etree.fromstring(target_xml),
encoding='unicode')
serial = "58a84f6d-3f0c-4e19-a0af-eb657b790657"
connection_info = {
u'driver_volume_type': u'iscsi',
'serial': u'58a84f6d-3f0c-4e19-a0af-eb657b790657',
u'data': {
u'access_mode': u'rw', u'target_discovered': False,
u'target_iqn': u'ip-1.2.3.4:3260-iqn.cde.67890.opst-lun-Z',
u'volume_id': u'58a84f6d-3f0c-4e19-a0af-eb657b790657',
u'device_path':
u'/dev/disk/by-path/ip-1.2.3.4:3260-iqn.cde.67890.opst-lun-Z',
},
}
bdmi = objects.LibvirtLiveMigrateBDMInfo(serial=serial,
bus='virtio',
dev='vdb',
type='disk')
bdmi.connection_info = connection_info
conf = vconfig.LibvirtConfigGuestDisk()
conf.source_device = bdmi.type
conf.driver_name = "qemu"
conf.driver_format = "raw"
conf.driver_cache = "none"
conf.target_dev = bdmi.dev
conf.target_bus = bdmi.bus
conf.serial = bdmi.connection_info.get('serial')
conf.source_type = "block"
conf.source_path = bdmi.connection_info['data'].get('device_path')
guest = libvirt_guest.Guest(mock.MagicMock())
with test.nested(
mock.patch.object(drvr, '_get_volume_config',
return_value=conf),
mock.patch.object(guest, 'get_xml_desc',
return_value=initial_xml)):
config = libvirt_migrate.get_updated_guest_xml(guest,
objects.LibvirtLiveMigrateData(bdms=[bdmi]),
drvr._get_volume_config)
self.assertEqual(target_xml, config)
def test_update_volume_xml_no_connection_info(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
initial_xml = self.device_xml_tmpl.format(
device_path='/dev/disk/by-path/'
'ip-1.2.3.4:3260-iqn.'
'abc.12345.opst-lun-X')
target_xml = self.device_xml_tmpl.format(
device_path='/dev/disk/by-path/'
'ip-1.2.3.4:3260-iqn.'
'abc.12345.opst-lun-X')
target_xml = etree.tostring(etree.fromstring(target_xml),
encoding='unicode')
serial = "58a84f6d-3f0c-4e19-a0af-eb657b790657"
bdmi = objects.LibvirtLiveMigrateBDMInfo(serial=serial,
dev='vdb',
type='disk',
bus='scsi',
format='qcow')
bdmi.connection_info = {}
conf = vconfig.LibvirtConfigGuestDisk()
guest = libvirt_guest.Guest(mock.MagicMock())
with test.nested(
mock.patch.object(drvr, '_get_volume_config',
return_value=conf),
mock.patch.object(guest, 'get_xml_desc',
return_value=initial_xml)):
config = libvirt_migrate.get_updated_guest_xml(
guest,
objects.LibvirtLiveMigrateData(bdms=[bdmi]),
drvr._get_volume_config)
self.assertEqual(target_xml, config)
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_get_serial_ports_from_guest')
@mock.patch.object(fakelibvirt.virDomain, "migrateToURI3")
@mock.patch.object(fakelibvirt.virDomain, "XMLDesc")
def test_live_migration_update_serial_console_xml(self, mock_xml,
mock_migrateToURI3,
mock_get,
mock_min_version):
self.compute = manager.ComputeManager()
instance_ref = self.test_instance
target_connection = '127.0.0.2'
xml_tmpl = ("<domain type='kvm'>"
"<devices>"
"<console type='tcp'>"
"<source mode='bind' host='{addr}' service='{port}'/>"
"<target type='serial' port='0'/>"
"</console>"
"</devices>"
"</domain>")
initial_xml = xml_tmpl.format(addr='9.0.0.1', port='10100')
target_xml = xml_tmpl.format(addr='9.0.0.12', port='10200')
target_xml = etree.tostring(etree.fromstring(target_xml),
encoding='unicode')
# Preparing mocks
mock_xml.return_value = initial_xml
mock_migrateToURI3.side_effect = fakelibvirt.libvirtError("ERR")
disk_paths = ['vda', 'vdb']
params = {
'migrate_uri': 'tcp://127.0.0.2',
'migrate_disks': ['vda', 'vdb'],
'bandwidth': CONF.libvirt.live_migration_bandwidth,
'destination_xml': target_xml,
}
# start test
migrate_data = objects.LibvirtLiveMigrateData(
graphics_listen_addr_vnc='10.0.0.1',
graphics_listen_addr_spice='10.0.0.2',
serial_listen_addr='9.0.0.12',
target_connect_addr=target_connection,
bdms=[],
block_migration=False,
serial_listen_ports=[10200])
dom = fakelibvirt.virDomain
guest = libvirt_guest.Guest(dom)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertRaises(fakelibvirt.libvirtError,
drvr._live_migration_operation,
self.context, instance_ref, target_connection,
False, migrate_data, guest, disk_paths)
mock_xml.assert_called_once_with(
flags=fakelibvirt.VIR_DOMAIN_XML_MIGRATABLE)
mock_migrateToURI3.assert_called_once_with(
drvr._live_migration_uri(target_connection),
params=params, flags=0)
def test_live_migration_fails_without_serial_console_address(self):
self.compute = manager.ComputeManager()
self.flags(enabled=True, group='serial_console')
self.flags(proxyclient_address='', group='serial_console')
instance_dict = dict(self.test_instance)
instance_dict.update({'host': 'fake',
'power_state': power_state.RUNNING,
'vm_state': vm_states.ACTIVE})
instance_ref = objects.Instance(**instance_dict)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
# Preparing mocks
dom = fakelibvirt.virDomain
guest = libvirt_guest.Guest(dom)
# start test
migrate_data = objects.LibvirtLiveMigrateData(
serial_listen_addr='',
target_connect_addr=None,
bdms=[],
block_migration=False)
self.assertRaises(exception.MigrationError,
drvr._live_migration_operation,
self.context, instance_ref, 'dest',
False, migrate_data, guest, [])
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
@mock.patch.object(fakelibvirt.virDomain, "migrateToURI3")
@mock.patch('nova.virt.libvirt.migration.get_updated_guest_xml',
return_value='')
@mock.patch('nova.virt.libvirt.guest.Guest.get_xml_desc',
return_value='<xml></xml>')
def test_live_migration_uses_migrateToURI3(
self, mock_old_xml, mock_new_xml, mock_migrateToURI3,
mock_min_version):
target_connection = '127.0.0.2'
# Preparing mocks
disk_paths = ['vda', 'vdb']
params = {
'migrate_uri': 'tcp://127.0.0.2',
'migrate_disks': ['vda', 'vdb'],
'bandwidth': CONF.libvirt.live_migration_bandwidth,
}
mock_migrateToURI3.side_effect = fakelibvirt.libvirtError("ERR")
# Start test
migrate_data = objects.LibvirtLiveMigrateData(
graphics_listen_addr_vnc='0.0.0.0',
graphics_listen_addr_spice='0.0.0.0',
serial_listen_addr='127.0.0.1',
target_connect_addr=target_connection,
bdms=[],
block_migration=False)
dom = fakelibvirt.virDomain
guest = libvirt_guest.Guest(dom)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
self.assertRaises(fakelibvirt.libvirtError,
drvr._live_migration_operation,
self.context, instance, target_connection,
False, migrate_data, guest, disk_paths)
mock_migrateToURI3.assert_called_once_with(
drvr._live_migration_uri(target_connection),
params=params, flags=0)
@mock.patch.object(fakelibvirt.virDomain, "migrateToURI3")
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
@mock.patch('nova.virt.libvirt.guest.Guest.get_xml_desc',
return_value='<xml/>')
def _test_live_migration_block_migration_flags(self,
device_names, expected_flags,
mock_old_xml, mock_min_version, mock_migrateToURI3):
target_connection = '127.0.0.2'
migrate_data = objects.LibvirtLiveMigrateData(
graphics_listen_addr_vnc='0.0.0.0',
graphics_listen_addr_spice='0.0.0.0',
serial_listen_addr='127.0.0.1',
target_connect_addr=target_connection,
bdms=[],
block_migration=True)
dom = fakelibvirt.virDomain
guest = libvirt_guest.Guest(dom)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._parse_migration_flags()
instance = objects.Instance(**self.test_instance)
drvr._live_migration_operation(self.context, instance,
target_connection,
True, migrate_data, guest,
device_names)
params = {
'migrate_uri': 'tcp://127.0.0.2',
'migrate_disks': device_names,
'bandwidth': CONF.libvirt.live_migration_bandwidth,
'destination_xml': '<xml/>',
}
if not params['migrate_disks']:
del params['migrate_disks']
mock_migrateToURI3.assert_called_once_with(
drvr._live_migration_uri(target_connection), params=params,
flags=expected_flags)
def test_live_migration_block_migration_with_devices(self):
device_names = ['vda']
expected_flags = (fakelibvirt.VIR_MIGRATE_NON_SHARED_INC |
fakelibvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
fakelibvirt.VIR_MIGRATE_PERSIST_DEST |
fakelibvirt.VIR_MIGRATE_PEER2PEER |
fakelibvirt.VIR_MIGRATE_LIVE)
self._test_live_migration_block_migration_flags(device_names,
expected_flags)
def test_live_migration_block_migration_all_filtered(self):
device_names = []
expected_flags = (fakelibvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
fakelibvirt.VIR_MIGRATE_PERSIST_DEST |
fakelibvirt.VIR_MIGRATE_PEER2PEER |
fakelibvirt.VIR_MIGRATE_LIVE)
self._test_live_migration_block_migration_flags(device_names,
expected_flags)
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
@mock.patch.object(fakelibvirt.virDomain, "migrateToURI3")
@mock.patch('nova.virt.libvirt.migration.get_updated_guest_xml',
return_value='')
@mock.patch('nova.virt.libvirt.guest.Guest.get_xml_desc', return_value='')
def test_block_live_migration_tunnelled_migrateToURI3(
self, mock_old_xml, mock_new_xml,
mock_migrateToURI3, mock_min_version):
self.flags(live_migration_tunnelled=True, group='libvirt')
target_connection = None
device_names = ['disk1', 'disk2']
# Preparing mocks
# Since we are passing the VIR_MIGRATE_TUNNELLED flag, the
# 'parms' dict will not (as expected) contain 'migrate_disks'
params = {
'bandwidth': CONF.libvirt.live_migration_bandwidth
}
# Start test
migrate_data = objects.LibvirtLiveMigrateData(
graphics_listen_addr_vnc='0.0.0.0',
graphics_listen_addr_spice='0.0.0.0',
serial_listen_addr='127.0.0.1',
target_connect_addr=target_connection,
bdms=[],
block_migration=True)
dom = fakelibvirt.virDomain
guest = libvirt_guest.Guest(dom)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._parse_migration_flags()
instance = objects.Instance(**self.test_instance)
drvr._live_migration_operation(self.context, instance,
target_connection, True, migrate_data,
guest, device_names)
expected_flags = (fakelibvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
fakelibvirt.VIR_MIGRATE_PERSIST_DEST |
fakelibvirt.VIR_MIGRATE_TUNNELLED |
fakelibvirt.VIR_MIGRATE_PEER2PEER |
fakelibvirt.VIR_MIGRATE_LIVE)
mock_migrateToURI3.assert_called_once_with(
drvr._live_migration_uri(target_connection),
params=params, flags=expected_flags)
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
@mock.patch.object(fakelibvirt.virDomain, "migrateToURI3")
@mock.patch('nova.virt.libvirt.migration.get_updated_guest_xml',
return_value='')
@mock.patch('nova.virt.libvirt.guest.Guest.get_xml_desc', return_value='')
def test_block_live_migration_native_tls(
self, mock_old_xml, mock_new_xml,
mock_migrateToURI3, mock_min_version):
self.flags(live_migration_with_native_tls=True, group='libvirt')
target_connection = None
disk_paths = ['vda', 'vdb']
params = {
'bandwidth': CONF.libvirt.live_migration_bandwidth,
'migrate_disks': disk_paths
}
# Start test
migrate_data = objects.LibvirtLiveMigrateData(
graphics_listen_addr_vnc='0.0.0.0',
graphics_listen_addr_spice='0.0.0.0',
serial_listen_addr='127.0.0.1',
target_connect_addr=target_connection,
bdms=[],
block_migration=True)
dom = fakelibvirt.virDomain
guest = libvirt_guest.Guest(dom)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._parse_migration_flags()
instance = objects.Instance(**self.test_instance)
drvr._live_migration_operation(self.context, instance,
target_connection, True, migrate_data,
guest, disk_paths)
expected_flags = (fakelibvirt.VIR_MIGRATE_UNDEFINE_SOURCE |
fakelibvirt.VIR_MIGRATE_PERSIST_DEST |
fakelibvirt.VIR_MIGRATE_PEER2PEER |
fakelibvirt.VIR_MIGRATE_NON_SHARED_INC |
fakelibvirt.VIR_MIGRATE_TLS |
fakelibvirt.VIR_MIGRATE_LIVE)
mock_migrateToURI3.assert_called_once_with(
drvr._live_migration_uri(target_connection),
params=params, flags=expected_flags)
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
@mock.patch.object(fakelibvirt.virDomain, "migrateToURI3")
@mock.patch('nova.virt.libvirt.guest.Guest.get_xml_desc',
return_value='<xml/>')
def test_live_migration_raises_exception(self, mock_xml,
mock_migrateToURI3,
mock_min_version):
# Prepare data
self.compute = manager.ComputeManager()
instance_ref = self.test_instance
target_connection = '127.0.0.2'
disk_paths = ['vda', 'vdb']
params = {
'migrate_uri': 'tcp://127.0.0.2',
'migrate_disks': disk_paths,
'bandwidth': CONF.libvirt.live_migration_bandwidth,
'destination_xml': '<xml/>',
}
# Prepare mocks
mock_migrateToURI3.side_effect = fakelibvirt.libvirtError("ERR")
# Start test
migrate_data = objects.LibvirtLiveMigrateData(
graphics_listen_addr_vnc='10.0.0.1',
graphics_listen_addr_spice='10.0.0.2',
serial_listen_addr='127.0.0.1',
target_connect_addr=target_connection,
bdms=[],
block_migration=False)
dom = fakelibvirt.virDomain
guest = libvirt_guest.Guest(dom)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertRaises(fakelibvirt.libvirtError,
drvr._live_migration_operation,
self.context, instance_ref, target_connection,
False, migrate_data, guest, disk_paths)
mock_migrateToURI3.assert_called_once_with(
drvr._live_migration_uri(target_connection),
params=params, flags=0)
@mock.patch('shutil.rmtree')
@mock.patch('os.path.exists', return_value=True)
@mock.patch('nova.virt.libvirt.utils.get_instance_path_at_destination')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.destroy')
def test_rollback_live_migration_at_dest_not_shared(self, mock_destroy,
mock_get_instance_path,
mock_exist,
mock_shutil
):
# destroy method may raise InstanceTerminationFailure or
# InstancePowerOffFailure, here use their base class Invalid.
mock_destroy.side_effect = exception.Invalid(reason='just test')
fake_instance_path = os.path.join(cfg.CONF.instances_path,
'/fake_instance_uuid')
mock_get_instance_path.return_value = fake_instance_path
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
migrate_data = objects.LibvirtLiveMigrateData(
is_shared_instance_path=False,
instance_relative_path=False)
self.assertRaises(exception.Invalid,
drvr.rollback_live_migration_at_destination,
"context", "instance", [], None, True, migrate_data)
mock_exist.assert_called_once_with(fake_instance_path)
mock_shutil.assert_called_once_with(fake_instance_path)
@mock.patch('shutil.rmtree')
@mock.patch('os.path.exists')
@mock.patch('nova.virt.libvirt.utils.get_instance_path_at_destination')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.destroy')
def test_rollback_live_migration_at_dest_shared(self, mock_destroy,
mock_get_instance_path,
mock_exist,
mock_shutil
):
def fake_destroy(ctxt, instance, network_info,
block_device_info=None, destroy_disks=True):
# This is just here to test the signature. Seems there should
# be a better way to do this with mock and autospec.
pass
mock_destroy.side_effect = fake_destroy
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
migrate_data = objects.LibvirtLiveMigrateData(
is_shared_instance_path=True,
instance_relative_path=False)
drvr.rollback_live_migration_at_destination("context", "instance", [],
None, True, migrate_data)
mock_destroy.assert_called_once_with("context", "instance", [],
None, True)
self.assertFalse(mock_get_instance_path.called)
self.assertFalse(mock_exist.called)
self.assertFalse(mock_shutil.called)
@mock.patch.object(fakelibvirt.Domain, "XMLDesc")
def test_live_migration_copy_disk_paths_tunnelled(self, mock_xml):
self.flags(live_migration_tunnelled=True, group='libvirt')
xml = """
<domain>
<name>dummy</name>
<uuid>d4e13113-918e-42fe-9fc9-861693ffd432</uuid>
<devices>
<disk type="file">
<source file="/var/lib/nova/instance/123/disk.root"/>
<target dev="vda"/>
</disk>
<disk type="file">
<source file="/var/lib/nova/instance/123/disk.shared"/>
<target dev="vdb"/>
<shareable/>
</disk>
<disk type="file">
<source file="/var/lib/nova/instance/123/disk.config"/>
<target dev="vdc"/>
<readonly/>
</disk>
<disk type="block">
<source dev="/dev/mapper/somevol"/>
<target dev="vdd"/>
</disk>
<disk type="network">
<source protocol="https" name="url_path">
<host name="hostname" port="443"/>
</source>
</disk>
</devices>
</domain>"""
mock_xml.return_value = xml
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._parse_migration_flags()
dom = fakelibvirt.Domain(drvr._get_connection(), xml, False)
guest = libvirt_guest.Guest(dom)
paths = drvr._live_migration_copy_disk_paths(None, None, guest)
self.assertEqual((["/var/lib/nova/instance/123/disk.root",
"/dev/mapper/somevol"], ['vda', 'vdd']), paths)
@mock.patch.object(host.Host, "get_connection")
@mock.patch.object(host.Host, "has_min_version", return_value=True)
@mock.patch('nova.virt.driver.get_block_device_info')
@mock.patch('nova.objects.BlockDeviceMappingList.get_by_instance_uuid')
@mock.patch.object(fakelibvirt.Domain, "XMLDesc")
def test_live_migration_copy_disk_paths_selective_block_migration(
self, mock_xml, mock_get_instance,
mock_block_device_info, mock_version, mock_conn):
xml = """
<domain>
<name>dummy</name>
<uuid>d4e13113-918e-42fe-9fc9-861693ffd432</uuid>
<devices>
<disk type="file">
<source file="/var/lib/nova/instance/123/disk.root"/>
<target dev="vda"/>
</disk>
<disk type="file">
<source file="/var/lib/nova/instance/123/disk.shared"/>
<target dev="vdb"/>
</disk>
<disk type="file">
<source file="/var/lib/nova/instance/123/disk.config"/>
<target dev="vdc"/>
</disk>
<disk type="block">
<source dev="/dev/mapper/somevol"/>
<target dev="vdd"/>
</disk>
<disk type="network">
<source protocol="https" name="url_path">
<host name="hostname" port="443"/>
</source>
</disk>
</devices>
</domain>"""
mock_xml.return_value = xml
instance = objects.Instance(**self.test_instance)
instance.root_device_name = '/dev/vda'
block_device_info = {
'swap': {
'disk_bus': u'virtio',
'swap_size': 10,
'device_name': u'/dev/vdc'
},
'root_device_name': u'/dev/vda',
'ephemerals': [{
'guest_format': u'ext3',
'device_name': u'/dev/vdb',
'disk_bus': u'virtio',
'device_type': u'disk',
'size': 1
}],
'block_device_mapping': [{
'guest_format': None,
'boot_index': None,
'mount_device': u'/dev/vdd',
'connection_info': {
u'driver_volume_type': u'iscsi',
'serial': u'147df29f-aec2-4851-b3fe-f68dad151834',
u'data': {
u'access_mode': u'rw',
u'target_discovered': False,
u'encrypted': False,
u'qos_specs': None,
u'target_iqn': u'iqn.2010-10.org.openstack:'
u'volume-147df29f-aec2-4851-b3fe-'
u'f68dad151834',
u'target_portal': u'10.102.44.141:3260', u'volume_id':
u'147df29f-aec2-4851-b3fe-f68dad151834',
u'target_lun': 1,
u'auth_password': u'cXELT66FngwzTwpf',
u'auth_username': u'QbQQjj445uWgeQkFKcVw',
u'auth_method': u'CHAP'
}
},
'disk_bus': None,
'device_type': None,
'delete_on_termination': False
}]
}
mock_block_device_info.return_value = block_device_info
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
dom = fakelibvirt.Domain(drvr._get_connection(), xml, False)
guest = libvirt_guest.Guest(dom)
return_value = drvr._live_migration_copy_disk_paths(self.context,
instance,
guest)
expected = (['/var/lib/nova/instance/123/disk.root',
'/var/lib/nova/instance/123/disk.shared',
'/var/lib/nova/instance/123/disk.config'],
['vda', 'vdb', 'vdc'])
self.assertEqual(expected, return_value)
@mock.patch.object(libvirt_driver.LibvirtDriver,
"_live_migration_copy_disk_paths")
def test_live_migration_data_gb_plain(self, mock_paths):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
data_gb = drvr._live_migration_data_gb(instance, [])
self.assertEqual(2, data_gb)
self.assertEqual(0, mock_paths.call_count)
def test_live_migration_data_gb_block(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
def fake_stat(path):
class StatResult(object):
def __init__(self, size):
self._size = size
@property
def st_size(self):
return self._size
if path == "/var/lib/nova/instance/123/disk.root":
return StatResult(10 * units.Gi)
elif path == "/dev/mapper/somevol":
return StatResult(1.5 * units.Gi)
else:
raise Exception("Should not be reached")
disk_paths = ["/var/lib/nova/instance/123/disk.root",
"/dev/mapper/somevol"]
with mock.patch.object(os, "stat") as mock_stat:
mock_stat.side_effect = fake_stat
data_gb = drvr._live_migration_data_gb(instance, disk_paths)
# Expecting 2 GB for RAM, plus 10 GB for disk.root
# and 1.5 GB rounded to 2 GB for somevol, so 14 GB
self.assertEqual(14, data_gb)
EXPECT_SUCCESS = 1
EXPECT_FAILURE = 2
EXPECT_ABORT = 3
@mock.patch.object(libvirt_guest.Guest, "migrate_start_postcopy")
@mock.patch.object(time, "time")
@mock.patch.object(time, "sleep",
side_effect=lambda x: eventlet.sleep(0))
@mock.patch.object(host.Host, "get_connection")
@mock.patch.object(libvirt_guest.Guest, "get_job_info")
@mock.patch.object(objects.Instance, "save")
@mock.patch.object(objects.Migration, "save")
@mock.patch.object(fakelibvirt.Connection, "_mark_running")
@mock.patch.object(fakelibvirt.virDomain, "abortJob")
@mock.patch.object(libvirt_guest.Guest, "pause")
def _test_live_migration_monitoring(self,
job_info_records,
time_records,
expect_result,
mock_pause,
mock_abort,
mock_running,
mock_save,
mock_mig_save,
mock_job_info,
mock_conn,
mock_sleep,
mock_time,
mock_postcopy_switch,
current_mig_status=None,
expected_mig_status=None,
scheduled_action=None,
scheduled_action_executed=False,
block_migration=False,
expected_switch=False):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
drvr.active_migrations[instance.uuid] = deque()
dom = fakelibvirt.Domain(drvr._get_connection(), "<domain/>", True)
guest = libvirt_guest.Guest(dom)
finish_event = eventlet.event.Event()
def fake_job_info():
while True:
self.assertGreater(len(job_info_records), 0)
rec = job_info_records.pop(0)
if type(rec) == str:
if rec == "thread-finish":
finish_event.send()
elif rec == "domain-stop":
dom.destroy()
elif rec == "force_complete":
drvr.active_migrations[instance.uuid].append(
"force-complete")
else:
if len(time_records) > 0:
time_records.pop(0)
return rec
return rec
def fake_time():
if len(time_records) > 0:
return time_records[0]
else:
return int(
datetime.datetime(2001, 1, 20, 20, 1, 0)
.strftime('%s'))
mock_job_info.side_effect = fake_job_info
mock_time.side_effect = fake_time
dest = mock.sentinel.migrate_dest
migration = objects.Migration(context=self.context, id=1)
migrate_data = objects.LibvirtLiveMigrateData(
migration=migration, block_migration=block_migration)
if current_mig_status:
migrate_data.migration.status = current_mig_status
else:
migrate_data.migration.status = "unset"
migrate_data.migration.save()
fake_post_method = mock.MagicMock()
fake_recover_method = mock.MagicMock()
drvr._live_migration_monitor(self.context, instance,
guest, dest,
fake_post_method,
fake_recover_method,
False,
migrate_data,
finish_event,
[])
if scheduled_action_executed:
if scheduled_action == 'pause':
self.assertTrue(mock_pause.called)
if scheduled_action == 'postcopy_switch':
self.assertTrue(mock_postcopy_switch.called)
else:
if scheduled_action == 'pause':
self.assertFalse(mock_pause.called)
if scheduled_action == 'postcopy_switch':
self.assertFalse(mock_postcopy_switch.called)
mock_mig_save.assert_called_with()
if expect_result == self.EXPECT_SUCCESS:
self.assertFalse(fake_recover_method.called,
'Recover method called when success expected')
self.assertFalse(mock_abort.called,
'abortJob not called when success expected')
if expected_switch:
self.assertTrue(mock_postcopy_switch.called)
fake_post_method.assert_called_once_with(
self.context, instance, dest, False, migrate_data)
else:
if expect_result == self.EXPECT_ABORT:
self.assertTrue(mock_abort.called,
'abortJob called when abort expected')
else:
self.assertFalse(mock_abort.called,
'abortJob not called when failure expected')
self.assertFalse(fake_post_method.called,
'Post method called when success not expected')
if expected_mig_status:
fake_recover_method.assert_called_once_with(
self.context, instance, dest, migrate_data,
migration_status=expected_mig_status)
else:
fake_recover_method.assert_called_once_with(
self.context, instance, dest, migrate_data)
self.assertNotIn(instance.uuid, drvr.active_migrations)
def test_live_migration_monitor_success(self):
# A normal sequence where see all the normal job states
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_COMPLETED),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_SUCCESS)
def test_live_migration_handle_pause_normal(self):
# A normal sequence where see all the normal job states, and pause
# scheduled in between VIR_DOMAIN_JOB_UNBOUNDED
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"force_complete",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_COMPLETED),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_SUCCESS,
current_mig_status="running",
scheduled_action="pause",
scheduled_action_executed=True)
def test_live_migration_handle_pause_on_start(self):
# A normal sequence where see all the normal job states, and pause
# scheduled in case of job type VIR_DOMAIN_JOB_NONE and finish_event is
# not ready yet
domain_info_records = [
"force_complete",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_COMPLETED),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_SUCCESS,
current_mig_status="preparing",
scheduled_action="pause",
scheduled_action_executed=True)
def test_live_migration_handle_pause_on_finish(self):
# A normal sequence where see all the normal job states, and pause
# scheduled in case of job type VIR_DOMAIN_JOB_NONE and finish_event is
# ready
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
"force_complete",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_COMPLETED),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_SUCCESS,
current_mig_status="completed",
scheduled_action="pause",
scheduled_action_executed=False)
def test_live_migration_handle_pause_on_cancel(self):
# A normal sequence where see all the normal job states, and pause
# scheduled in case of job type VIR_DOMAIN_JOB_CANCELLED
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
"force_complete",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_CANCELLED),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_FAILURE,
current_mig_status="cancelled",
expected_mig_status='cancelled',
scheduled_action="pause",
scheduled_action_executed=False)
def test_live_migration_handle_pause_on_failure(self):
# A normal sequence where see all the normal job states, and pause
# scheduled in case of job type VIR_DOMAIN_JOB_FAILED
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
"force_complete",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_FAILED),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_FAILURE,
scheduled_action="pause",
scheduled_action_executed=False)
@mock.patch.object(libvirt_driver.LibvirtDriver,
"_is_post_copy_enabled")
def test_live_migration_handle_postcopy_normal(self,
mock_postcopy_enabled):
# A normal sequence where see all the normal job states, and postcopy
# switch scheduled in between VIR_DOMAIN_JOB_UNBOUNDED
mock_postcopy_enabled.return_value = True
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"force_complete",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_COMPLETED),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_SUCCESS,
current_mig_status="running",
scheduled_action="postcopy_switch",
scheduled_action_executed=True)
@mock.patch.object(libvirt_driver.LibvirtDriver,
"_is_post_copy_enabled")
def test_live_migration_handle_postcopy_on_start(self,
mock_postcopy_enabled):
# A normal sequence where see all the normal job states, and postcopy
# switch scheduled in case of job type VIR_DOMAIN_JOB_NONE and
# finish_event is not ready yet
mock_postcopy_enabled.return_value = True
domain_info_records = [
"force_complete",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_COMPLETED),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_SUCCESS,
current_mig_status="preparing",
scheduled_action="postcopy_switch",
scheduled_action_executed=True)
@mock.patch.object(libvirt_driver.LibvirtDriver,
"_is_post_copy_enabled")
def test_live_migration_handle_postcopy_on_finish(self,
mock_postcopy_enabled):
# A normal sequence where see all the normal job states, and postcopy
# switch scheduled in case of job type VIR_DOMAIN_JOB_NONE and
# finish_event is ready
mock_postcopy_enabled.return_value = True
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
"force_complete",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_COMPLETED),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_SUCCESS,
current_mig_status="completed",
scheduled_action="postcopy_switch",
scheduled_action_executed=False)
@mock.patch.object(libvirt_driver.LibvirtDriver,
"_is_post_copy_enabled")
def test_live_migration_handle_postcopy_on_cancel(self,
mock_postcopy_enabled):
# A normal sequence where see all the normal job states, and postcopy
# scheduled in case of job type VIR_DOMAIN_JOB_CANCELLED
mock_postcopy_enabled.return_value = True
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
"force_complete",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_CANCELLED),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_FAILURE,
current_mig_status="cancelled",
expected_mig_status='cancelled',
scheduled_action="postcopy_switch",
scheduled_action_executed=False)
@mock.patch.object(libvirt_driver.LibvirtDriver,
"_is_post_copy_enabled")
def test_live_migration_handle_pause_on_postcopy(self,
mock_postcopy_enabled):
# A normal sequence where see all the normal job states, and pause
# scheduled after migration switched to postcopy
mock_postcopy_enabled.return_value = True
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"force_complete",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_COMPLETED),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_SUCCESS,
current_mig_status="running (post-copy)",
scheduled_action="pause",
scheduled_action_executed=False)
@mock.patch.object(libvirt_driver.LibvirtDriver,
"_is_post_copy_enabled")
def test_live_migration_handle_postcopy_on_postcopy(self,
mock_postcopy_enabled):
# A normal sequence where see all the normal job states, and pause
# scheduled after migration switched to postcopy
mock_postcopy_enabled.return_value = True
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"force_complete",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_COMPLETED),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_SUCCESS,
current_mig_status="running (post-copy)",
scheduled_action="postcopy_switch",
scheduled_action_executed=False)
@mock.patch.object(libvirt_driver.LibvirtDriver,
"_is_post_copy_enabled")
def test_live_migration_handle_postcopy_on_failure(self,
mock_postcopy_enabled):
# A normal sequence where see all the normal job states, and postcopy
# scheduled in case of job type VIR_DOMAIN_JOB_FAILED
mock_postcopy_enabled.return_value = True
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
"force_complete",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_FAILED),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_FAILURE,
scheduled_action="postcopy_switch",
scheduled_action_executed=False)
def test_live_migration_monitor_success_race(self):
# A normalish sequence but we're too slow to see the
# completed job state
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_SUCCESS)
def test_live_migration_monitor_failed(self):
# A failed sequence where we see all the expected events
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_FAILED),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_FAILURE)
def test_live_migration_monitor_failed_race(self):
# A failed sequence where we are too slow to see the
# failed event
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_FAILURE)
def test_live_migration_monitor_cancelled(self):
# A cancelled sequence where we see all the events
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_CANCELLED),
]
self._test_live_migration_monitoring(domain_info_records, [],
self.EXPECT_FAILURE,
expected_mig_status='cancelled')
@mock.patch.object(fakelibvirt.virDomain, "migrateSetMaxDowntime")
@mock.patch("nova.virt.libvirt.migration.downtime_steps")
def test_live_migration_monitor_downtime(self, mock_downtime_steps,
mock_set_downtime):
self.flags(live_migration_completion_timeout=1000000,
group='libvirt')
# We've setup 4 fake downtime steps - first value is the
# time delay, second is the downtime value
downtime_steps = [
(90, 10),
(180, 50),
(270, 200),
(500, 300),
]
mock_downtime_steps.return_value = downtime_steps
# Each one of these fake times is used for time.time()
# when a new domain_info_records entry is consumed.
# Times are chosen so that only the first 3 downtime
# steps are needed.
fake_times = [0, 1, 30, 95, 150, 200, 300]
# A normal sequence where see all the normal job states
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_COMPLETED),
]
self._test_live_migration_monitoring(domain_info_records,
fake_times, self.EXPECT_SUCCESS)
mock_set_downtime.assert_has_calls([mock.call(10),
mock.call(50),
mock.call(200)])
def test_live_migration_monitor_completion(self):
self.flags(live_migration_completion_timeout=100,
group='libvirt')
# Each one of these fake times is used for time.time()
# when a new domain_info_records entry is consumed.
fake_times = [0, 40, 80, 120, 160, 200, 240, 280, 320]
# A normal sequence where see all the normal job states
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_CANCELLED),
]
self._test_live_migration_monitoring(domain_info_records,
fake_times, self.EXPECT_ABORT,
expected_mig_status='cancelled')
@mock.patch.object(libvirt_driver.LibvirtDriver,
"_is_post_copy_enabled")
def test_live_migration_monitor_force_complete_postcopy(self,
mock_postcopy_enabled):
self.flags(live_migration_completion_timeout=40,
live_migration_timeout_action='force_complete',
group='libvirt')
mock_postcopy_enabled.return_value = True
# Each one of these fake times is used for time.time()
# when a new domain_info_records entry is consumed.
fake_times = [0, 40, 80, 120, 160, 200, 240, 280, 320]
domain_info_records = [
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_NONE),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_UNBOUNDED),
"thread-finish",
"domain-stop",
libvirt_guest.JobInfo(
type=fakelibvirt.VIR_DOMAIN_JOB_COMPLETED),
]
self._test_live_migration_monitoring(domain_info_records, fake_times,
self.EXPECT_SUCCESS,
expected_switch=True)
@mock.patch.object(host.Host, "get_connection")
@mock.patch.object(utils, "spawn")
@mock.patch.object(libvirt_driver.LibvirtDriver, "_live_migration_monitor")
@mock.patch.object(host.Host, "get_guest")
@mock.patch.object(fakelibvirt.Connection, "_mark_running")
@mock.patch.object(libvirt_driver.LibvirtDriver,
"_live_migration_copy_disk_paths")
def test_live_migration_main(self, mock_copy_disk_path, mock_running,
mock_guest, mock_monitor, mock_thread,
mock_conn):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
dom = fakelibvirt.Domain(drvr._get_connection(),
"<domain><name>demo</name></domain>", True)
guest = libvirt_guest.Guest(dom)
migrate_data = objects.LibvirtLiveMigrateData(block_migration=True)
disks_to_copy = (['/some/path/one', '/test/path/two'],
['vda', 'vdb'])
mock_copy_disk_path.return_value = disks_to_copy
mock_guest.return_value = guest
def fake_post():
pass
def fake_recover():
pass
drvr._live_migration(self.context, instance, "fakehost",
fake_post, fake_recover, True,
migrate_data)
mock_copy_disk_path.assert_called_once_with(self.context, instance,
guest)
class AnyEventletEvent(object):
def __eq__(self, other):
return type(other) == eventlet.event.Event
mock_thread.assert_called_once_with(
drvr._live_migration_operation,
self.context, instance, "fakehost", True,
migrate_data, guest, disks_to_copy[1])
mock_monitor.assert_called_once_with(
self.context, instance, guest, "fakehost",
fake_post, fake_recover, True,
migrate_data, AnyEventletEvent(), disks_to_copy[0])
@mock.patch('os.path.exists', return_value=False)
@mock.patch('nova.virt.libvirt.utils.create_image')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_fetch_instance_kernel_ramdisk')
def _do_test_create_images_and_backing(self, disk_type, mock_fetch,
mock_create, mock_exists):
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
disk_info = {'path': 'foo', 'type': disk_type,
'disk_size': 1 * 1024 ** 3,
'virt_disk_size': 20 * 1024 ** 3,
'backing_file': None}
drvr._create_images_and_backing(self.context, instance,
"/fake/instance/dir", [disk_info])
mock_fetch.assert_called_once_with(self.context, instance,
fallback_from_host=None)
mock_create.assert_called_once_with(
disk_info['type'], mock.ANY, disk_info['virt_disk_size'])
mock_exists.assert_called_once_with('/fake/instance/dir/foo')
def test_create_images_and_backing_qcow2(self):
self._do_test_create_images_and_backing('qcow2')
def test_create_images_and_backing_raw(self):
self._do_test_create_images_and_backing('raw')
def test_create_images_and_backing_images_not_exist_no_fallback(self):
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.test_instance.update({'user_id': 'fake-user',
'os_type': None,
'project_id': 'fake-project'})
instance = objects.Instance(**self.test_instance)
backing_file = imagecache.get_cache_fname(instance.image_ref)
disk_info = [
{u'backing_file': backing_file,
u'disk_size': 10747904,
u'path': u'disk_path',
u'type': u'qcow2',
u'virt_disk_size': 25165824}]
with mock.patch.object(libvirt_driver.libvirt_utils, 'fetch_image',
side_effect=exception.ImageNotFound(
image_id="fake_id")):
self.assertRaises(exception.ImageNotFound,
conn._create_images_and_backing,
self.context, instance,
"/fake/instance/dir", disk_info)
@mock.patch('nova.virt.libvirt.utils.create_cow_image')
@mock.patch('nova.privsep.path.utime')
def test_create_images_and_backing_images_not_exist_fallback(
self, mock_utime, mock_create_cow_image):
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
base_dir = os.path.join(CONF.instances_path,
CONF.image_cache_subdirectory_name)
trusted_certs = objects.TrustedCerts(
ids=['0b5d2c72-12cc-4ba6-a8d7-3ff5cc1d8cb8',
'674736e3-f25c-405c-8362-bbf991e0ce0a'])
self.test_instance.update({'user_id': 'fake-user',
'os_type': None,
'trusted_certs': trusted_certs,
'kernel_id': uuids.kernel_id,
'ramdisk_id': uuids.ramdisk_id,
'project_id': 'fake-project'})
instance = objects.Instance(**self.test_instance)
backing_file = imagecache.get_cache_fname(instance.image_ref)
backfile_path = os.path.join(base_dir, backing_file)
disk_size = 10747904
virt_disk_size = 25165824
disk_info = [
{u'backing_file': backing_file,
u'disk_size': disk_size,
u'path': u'disk_path',
u'type': u'qcow2',
u'virt_disk_size': virt_disk_size}]
def fake_copy_image(src, dest, **kwargs):
# backing file should be present and have a smaller size
# than instance root disk in order to assert resize_image()
if dest == backfile_path:
# dest is created under TempDir() fixture,
# it will go away after test cleanup
with open(dest, 'a'):
pass
with test.nested(
mock.patch.object(libvirt_driver.libvirt_utils, 'copy_image',
side_effect=fake_copy_image),
mock.patch.object(libvirt_driver.libvirt_utils, 'fetch_image',
side_effect=exception.ImageNotFound(
image_id=uuids.fake_id)),
mock.patch.object(imagebackend.Qcow2, 'resize_image'),
mock.patch.object(imagebackend.Image, 'get_disk_size',
return_value=disk_size),
) as (copy_image_mock, fetch_image_mock, resize_image_mock,
get_disk_size_mock):
conn._create_images_and_backing(self.context, instance,
"/fake/instance/dir", disk_info,
fallback_from_host="fake_host")
kernel_path = os.path.join(CONF.instances_path,
self.test_instance['uuid'],
'kernel')
ramdisk_path = os.path.join(CONF.instances_path,
self.test_instance['uuid'],
'ramdisk')
copy_image_mock.assert_has_calls([
mock.call(dest=backfile_path, src=backfile_path,
host='fake_host', receive=True),
mock.call(dest=kernel_path, src=kernel_path,
host='fake_host', receive=True),
mock.call(dest=ramdisk_path, src=ramdisk_path,
host='fake_host', receive=True)
])
fetch_image_mock.assert_has_calls([
mock.call(context=self.context,
target=backfile_path,
image_id=self.test_instance['image_ref'],
trusted_certs=trusted_certs),
mock.call(self.context, kernel_path, instance.kernel_id,
trusted_certs),
mock.call(self.context, ramdisk_path, instance.ramdisk_id,
trusted_certs)
])
resize_image_mock.assert_called_once_with(virt_disk_size)
mock_utime.assert_called()
mock_create_cow_image.assert_called_once_with(
backfile_path, '/fake/instance/dir/disk_path')
@mock.patch('nova.virt.libvirt.utils.create_image',
new=mock.NonCallableMock())
@mock.patch.object(libvirt_driver.libvirt_utils, 'fetch_image')
def test_create_images_and_backing_images_exist(
self, mock_fetch_image):
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.test_instance.update({'user_id': 'fake-user',
'os_type': None,
'kernel_id': 'fake_kernel_id',
'ramdisk_id': 'fake_ramdisk_id',
'project_id': 'fake-project'})
instance = objects.Instance(**self.test_instance)
disk_info = [
{u'backing_file': imagecache.get_cache_fname(instance.image_ref),
u'disk_size': 10747904,
u'path': u'disk_path',
u'type': u'qcow2',
u'virt_disk_size': 25165824}]
with test.nested(
mock.patch.object(imagebackend.Image, 'get_disk_size',
return_value=0),
mock.patch.object(os.path, 'exists', return_value=True)
):
conn._create_images_and_backing(self.context, instance,
'/fake/instance/dir', disk_info)
self.assertFalse(mock_fetch_image.called)
@mock.patch('nova.privsep.path.utime')
@mock.patch('nova.virt.libvirt.utils.create_cow_image')
def test_create_images_and_backing_ephemeral_gets_created(
self, mock_create_cow_image, mock_utime):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
base_dir = os.path.join(CONF.instances_path,
CONF.image_cache_subdirectory_name)
instance = objects.Instance(**self.test_instance)
disk_info_byname = fake_disk_info_byname(instance)
disk_info_byname['disk.local']['backing_file'] = 'ephemeral_foo'
disk_info_byname['disk.local']['virt_disk_size'] = 1 * units.Gi
disk_info = disk_info_byname.values()
with test.nested(
mock.patch.object(libvirt_driver.libvirt_utils, 'fetch_image'),
mock.patch.object(drvr, '_create_ephemeral'),
mock.patch.object(imagebackend.Image, 'verify_base_size'),
mock.patch.object(imagebackend.Image, 'get_disk_size')
) as (fetch_image_mock, create_ephemeral_mock, verify_base_size_mock,
disk_size_mock):
disk_size_mock.return_value = 0
drvr._create_images_and_backing(self.context, instance,
CONF.instances_path, disk_info)
self.assertEqual(len(create_ephemeral_mock.call_args_list), 1)
root_backing, ephemeral_backing = [
os.path.join(base_dir, name)
for name in (disk_info_byname['disk']['backing_file'],
'ephemeral_foo')
]
create_ephemeral_mock.assert_called_once_with(
ephemeral_size=1, fs_label='ephemeral_foo',
os_type='linux', target=ephemeral_backing)
fetch_image_mock.assert_called_once_with(
context=self.context, image_id=instance.image_ref,
target=root_backing, trusted_certs=instance.trusted_certs)
verify_base_size_mock.assert_has_calls([
mock.call(root_backing, instance.flavor.root_gb * units.Gi),
mock.call(ephemeral_backing, 1 * units.Gi)
])
mock_utime.assert_has_calls([
mock.call(root_backing),
mock.call(ephemeral_backing)])
# TODO(efried): Should these be disk_info[path]??
mock_create_cow_image.assert_has_calls([
mock.call(root_backing, CONF.instances_path + '/disk'),
mock.call(ephemeral_backing,
CONF.instances_path + '/disk.local')])
def test_create_images_and_backing_disk_info_none(self):
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
fake_backend = self.useFixture(fake_imagebackend.ImageBackendFixture())
drvr._create_images_and_backing(self.context, instance,
"/fake/instance/dir", None)
# Assert that we did nothing
self.assertEqual({}, fake_backend.created_disks)
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_fetch_instance_kernel_ramdisk')
def test_create_images_and_backing_parallels(self, mock_fetch):
self.flags(virt_type='parallels', group='libvirt')
instance = objects.Instance(**self.test_instance)
instance.vm_mode = fields.VMMode.EXE
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
drvr._create_images_and_backing(self.context, instance,
'/fake/instance/dir', None)
self.assertFalse(mock_fetch.called)
def _migrate_data_to_dict(self, migrate_data):
primitive = migrate_data.obj_to_primitive()['nova_object.data']
primitive['bdms'] = [bdm['nova_object.data'] for bdm in
primitive['bdms']]
return primitive
def _generate_target_ret(self, target_connect_addr=None):
return self._migrate_data_to_dict(objects.LibvirtLiveMigrateData(
block_migration=False,
instance_relative_path='foo',
is_shared_block_storage=False,
is_shared_instance_path=False,
serial_listen_ports=[],
src_supports_native_luks=True,
supported_perf_events=[],
graphics_listen_addr_spice='127.0.0.1',
graphics_listen_addr_vnc='127.0.0.1',
serial_listen_addr='127.0.0.1',
target_connect_addr=target_connect_addr,
bdms=[
objects.LibvirtLiveMigrateBDMInfo(
serial='12345', bus='scsi', dev='sda', type='disk',
boot_index=None, format=None,
connection_info_json=jsonutils.dumps({
'serial': '12345',
'data': {
'device_path': '/dev/disk/by-path/ip-1.2.3.4:3260'
'-iqn.abc.12345.opst-lun-X'}})),
objects.LibvirtLiveMigrateBDMInfo(
serial='67890', bus='scsi', dev='sdb', type='disk',
boot_index=None, format=None,
connection_info_json=jsonutils.dumps({
'serial': '67890',
'data': {
'device_path': '/dev/disk/by-path/ip-1.2.3.4:3260'
'-iqn.cde.67890.opst-lun-Z'}}))]))
def test_pre_live_migration_works_correctly_mocked(self):
self._test_pre_live_migration_works_correctly_mocked()
def test_pre_live_migration_with_transport_ip(self):
self.flags(live_migration_inbound_addr='127.0.0.2',
group='libvirt')
target_ret = self._generate_target_ret('127.0.0.2')
self._test_pre_live_migration_works_correctly_mocked(
target_ret=target_ret)
def test_pre_live_migration_only_dest_supports_native_luks(self):
# Assert that allow_native_luks is False when src_supports_native_luks
# is missing from migrate data during a P to Q LM.
self._test_pre_live_migration_works_correctly_mocked(
src_supports_native_luks=None, dest_supports_native_luks=True,
allow_native_luks=False)
def test_pre_live_migration_only_src_supports_native_luks(self):
# Assert that allow_native_luks is False when dest_supports_native_luks
# is False due to unmet QEMU and Libvirt deps on the dest compute.
self._test_pre_live_migration_works_correctly_mocked(
src_supports_native_luks=True, dest_supports_native_luks=False,
allow_native_luks=False)
@mock.patch.object(libvirt_driver.LibvirtDriver, 'plug_vifs')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_connect_volume')
@mock.patch('nova.virt.libvirt.utils.file_open',
side_effect=[io.BytesIO(b''), io.BytesIO(b'')])
def _test_pre_live_migration_works_correctly_mocked(
self, mock_file_open, mock_connect, mock_plug,
target_ret=None, src_supports_native_luks=True,
dest_supports_native_luks=True, allow_native_luks=True):
# Creating testdata
c = context.get_admin_context()
instance = objects.Instance(root_device_name='/dev/vda',
**self.test_instance)
bdms = objects.BlockDeviceMappingList(objects=[
fake_block_device.fake_bdm_object(c, {
'connection_info': jsonutils.dumps({
'serial': '12345',
'data': {
'device_path': '/dev/disk/by-path/ip-1.2.3.4:3260'
'-iqn.abc.12345.opst-lun-X'
}
}),
'device_name': '/dev/sda',
'volume_id': uuids.volume1,
'source_type': 'volume',
'destination_type': 'volume'
}),
fake_block_device.fake_bdm_object(c, {
'connection_info': jsonutils.dumps({
'serial': '67890',
'data': {
'device_path': '/dev/disk/by-path/ip-1.2.3.4:3260'
'-iqn.cde.67890.opst-lun-Z'
}
}),
'device_name': '/dev/sdb',
'volume_id': uuids.volume2,
'source_type': 'volume',
'destination_type': 'volume'
})
])
# We go through get_block_device_info to simulate what the
# ComputeManager sends to the driver (make sure we're using the
# correct type of BDM objects since there are many of them and
# they are super confusing).
block_device_info = driver.get_block_device_info(instance, bdms)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
class FakeNetworkInfo(object):
def fixed_ips(self):
return ["test_ip_addr"]
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver.'
'_create_images_and_backing',
lambda *args, **kwargs: None)
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver.'
'_is_native_luks_available',
lambda self: dest_supports_native_luks)
nw_info = FakeNetworkInfo()
expected_connect_calls = []
for v in block_device_info['block_device_mapping']:
expected_connect_calls.append(
mock.call(c, v['connection_info'], instance,
allow_native_luks=allow_native_luks))
migrate_data = migrate_data_obj.LibvirtLiveMigrateData(
block_migration=False,
instance_relative_path='foo',
is_shared_block_storage=False,
is_shared_instance_path=False,
graphics_listen_addr_vnc='127.0.0.1',
graphics_listen_addr_spice='127.0.0.1',
serial_listen_addr='127.0.0.1',
)
if not target_ret:
target_ret = self._generate_target_ret()
if src_supports_native_luks:
migrate_data.src_supports_native_luks = True
else:
target_ret.pop('src_supports_native_luks')
result = drvr.pre_live_migration(
c, instance, block_device_info, nw_info, None,
migrate_data=migrate_data)
result_dict = self._migrate_data_to_dict(result)
# connection_info_json is a string, needs special handling
for bdms in zip(target_ret.pop('bdms'), result_dict.pop('bdms')):
conninfo0 = jsonutils.loads(bdms[0].pop('connection_info_json'))
conninfo1 = jsonutils.loads(bdms[1].pop('connection_info_json'))
self.assertEqual(conninfo0, conninfo1)
self.assertThat(bdms[0], matchers.DictMatches(bdms[1]))
self.assertThat(target_ret, matchers.DictMatches(result_dict))
mock_connect.assert_has_calls(expected_connect_calls)
self.assertEqual(len(expected_connect_calls), mock_connect.call_count)
mock_plug.assert_called_once_with(test.MatchType(objects.Instance),
nw_info)
@mock.patch.object(os, 'mkdir')
@mock.patch('nova.virt.libvirt.utils.get_instance_path_at_destination')
@mock.patch('nova.virt.libvirt.driver.remotefs.'
'RemoteFilesystem.copy_file')
@mock.patch('nova.virt.driver.block_device_info_get_mapping')
@mock.patch('nova.virt.configdrive.required_by', return_value=True)
def test_pre_live_migration_block_with_config_drive_success(
self, mock_required_by, block_device_info_get_mapping,
mock_copy_file, mock_get_instance_path, mock_mkdir):
self.flags(config_drive_format='iso9660')
vol = {'block_device_mapping': [
{'connection_info': 'dummy', 'mount_device': '/dev/sda'},
{'connection_info': 'dummy', 'mount_device': '/dev/sdb'}]}
fake_instance_path = os.path.join(cfg.CONF.instances_path,
'/fake_instance_uuid')
mock_get_instance_path.return_value = fake_instance_path
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
migrate_data = objects.LibvirtLiveMigrateData()
migrate_data.is_shared_instance_path = False
migrate_data.is_shared_block_storage = False
migrate_data.block_migration = True
migrate_data.instance_relative_path = 'foo'
src = "%s:%s/disk.config" % (instance.host, fake_instance_path)
result = drvr.pre_live_migration(
self.context, instance, vol, [], None, migrate_data)
block_device_info_get_mapping.assert_called_once_with(
{'block_device_mapping': [
{'connection_info': 'dummy', 'mount_device': '/dev/sda'},
{'connection_info': 'dummy', 'mount_device': '/dev/sdb'}
]}
)
mock_copy_file.assert_called_once_with(src, fake_instance_path)
migrate_data.graphics_listen_addrs_vnc = '127.0.0.1'
migrate_data.graphics_listen_addrs_spice = '127.0.0.1'
migrate_data.serial_listen_addr = '127.0.0.1'
self.assertEqual(migrate_data, result)
@mock.patch('nova.virt.driver.block_device_info_get_mapping',
return_value=())
@mock.patch('nova.virt.libvirt.utils.file_open',
side_effect=[io.BytesIO(b''), io.BytesIO(b'')])
def test_pre_live_migration_block_with_config_drive_mocked_with_vfat(
self, mock_open, mock_block_device_info_get_mapping):
self.flags(config_drive_format='vfat')
# Creating testdata
vol = {'block_device_mapping': [
{'connection_info': 'dummy', 'mount_device': '/dev/sda'},
{'connection_info': 'dummy', 'mount_device': '/dev/sdb'}]}
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
instance.config_drive = 'True'
migrate_data = migrate_data_obj.LibvirtLiveMigrateData(
is_shared_instance_path=False,
is_shared_block_storage=False,
block_migration=False,
instance_relative_path='foo',
)
res_data = drvr.pre_live_migration(
self.context, instance, vol, [], None, migrate_data)
mock_block_device_info_get_mapping.assert_called_once_with(
{'block_device_mapping': [
{'connection_info': 'dummy', 'mount_device': '/dev/sda'},
{'connection_info': 'dummy', 'mount_device': '/dev/sdb'}
]}
)
self.assertEqual({'block_migration': False,
'instance_relative_path': 'foo',
'is_shared_block_storage': False,
'is_shared_instance_path': False,
'serial_listen_ports': [],
'supported_perf_events': [],
'target_connect_addr': None,
'bdms': []},
res_data.obj_to_primitive()['nova_object.data'])
def _test_pre_live_migration_volume_backed(self, encrypted_volumes=False):
inst_ref = objects.Instance(root_device_name='/dev/vda',
**self.test_instance)
bdms = objects.BlockDeviceMappingList(objects=[
fake_block_device.fake_bdm_object(self.context, {
'connection_info': jsonutils.dumps({
'serial': uuids.vol1,
'data': {
'device_path': '/dev/disk/path/lun-X'
}
}),
'device_name': '/dev/sda',
'volume_id': uuids.vol1,
'source_type': 'volume',
'destination_type': 'volume'
}),
fake_block_device.fake_bdm_object(self.context, {
'connection_info': jsonutils.dumps({
'serial': uuids.vol2,
'data': {
'device_path': '/dev/disk/path/lun-Z'
}
}),
'device_name': '/dev/sdb',
'volume_id': uuids.vol2,
'source_type': 'volume',
'destination_type': 'volume'
})
])
# We go through get_block_device_info to simulate what the
# ComputeManager sends to the driver (make sure we're using the
# correct type of BDM objects since there are many of them and
# they are super confusing).
block_device_info = driver.get_block_device_info(inst_ref, bdms)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with test.nested(
mock.patch.object(drvr, '_is_native_luks_available'),
mock.patch.object(drvr._host, 'find_secret'),
mock.patch.object(drvr, '_connect_volume'),
mock.patch.object(drvr, 'plug_vifs'),
) as (mock_is_luks_available, mock_find_secret,
mock_connect_volume, mock_plug_vifs):
mock_is_luks_available.return_value = True
mock_find_secret.return_value = None
if encrypted_volumes:
secret_vol1 = mock.Mock()
secret_vol1.UUIDString.return_value = uuids.secret_vol1
secret_vol2 = mock.Mock()
secret_vol2.UUIDString.return_value = uuids.secret_vol2
mock_find_secret.side_effect = [secret_vol1, secret_vol2]
migrate_data = migrate_data_obj.LibvirtLiveMigrateData(
is_shared_instance_path=True,
is_shared_block_storage=False,
is_volume_backed=True,
block_migration=False,
instance_relative_path=inst_ref['name'],
disk_over_commit=False,
disk_available_mb=123,
image_type='qcow2',
filename='foo',
src_supports_native_luks=True,
)
expected_migrate_data = migrate_data_obj.LibvirtLiveMigrateData(
is_shared_instance_path=True,
is_shared_block_storage=False,
is_volume_backed=True,
block_migration=False,
instance_relative_path=inst_ref['name'],
disk_over_commit=False,
disk_available_mb=123,
image_type='qcow2',
filename='foo',
serial_listen_ports=[],
supported_perf_events=[],
target_connect_addr=None,
src_supports_native_luks=True
)
bdmi_vol1 = migrate_data_obj.LibvirtLiveMigrateBDMInfo()
bdmi_vol1.boot_index = None
bdmi_vol1.format = None
bdmi_vol1.serial = uuids.vol1
bdmi_vol1.connection_info = {
u'data': {'device_path': u'/dev/disk/path/lun-X'},
u'serial': uuids.vol1}
bdmi_vol1.bus = 'scsi'
bdmi_vol1.dev = 'sda'
bdmi_vol1.type = 'disk'
bdmi_vol2 = migrate_data_obj.LibvirtLiveMigrateBDMInfo()
bdmi_vol2.boot_index = None
bdmi_vol2.format = None
bdmi_vol2.serial = uuids.vol2
bdmi_vol2.connection_info = {
u'data': {'device_path': u'/dev/disk/path/lun-Z'},
u'serial': uuids.vol2}
bdmi_vol2.bus = 'scsi'
bdmi_vol2.dev = 'sdb'
bdmi_vol2.type = 'disk'
if encrypted_volumes:
bdmi_vol1.encryption_secret_uuid = uuids.secret_vol1
bdmi_vol2.encryption_secret_uuid = uuids.secret_vol2
expected_migrate_data.bdms = [bdmi_vol1, bdmi_vol2]
returned_migrate_data = drvr.pre_live_migration(
self.context, inst_ref, block_device_info, [], None,
migrate_data)
expected_connect_volume_calls = []
for bdm in block_device_info['block_device_mapping']:
expected_call = mock.call(self.context, bdm['connection_info'],
inst_ref, allow_native_luks=True)
expected_connect_volume_calls.append(expected_call)
mock_connect_volume.assert_has_calls(expected_connect_volume_calls)
if encrypted_volumes:
mock_find_secret.assert_has_calls(
[mock.call('volume', uuids.vol1),
mock.call('volume', uuids.vol2)])
# FIXME(lyarwood): This is taken from test_os_vif_util.py and as
# noted there should be removed if the ComparableVersionedObject
# mix-in is ever used for these objects.
expected_migrate_data.obj_reset_changes(recursive=True)
returned_migrate_data.obj_reset_changes(recursive=True)
expected = expected_migrate_data.obj_to_primitive()
returned = returned_migrate_data.obj_to_primitive()
# We have to manually deserialize the connection_info_json so
# that the equality comparison uses a dict rather than a string
# with a random hashseed sort order on the keys.
for migrate_data in (expected, returned):
for bdm_data in migrate_data['nova_object.data']['bdms']:
bdm = bdm_data['nova_object.data']
bdm['connection_info_json'] = (
jsonutils.loads(bdm['connection_info_json']))
self.assertEqual(expected, returned)
def test_pre_live_migration_volume_backed(self):
self._test_pre_live_migration_volume_backed()
def test_pre_live_migration_volume_backed_encrypted(self):
self._test_pre_live_migration_volume_backed(encrypted_volumes=True)
@mock.patch.object(eventlet.greenthread, 'sleep',
side_effect=eventlet.sleep(0))
@mock.patch.object(libvirt_driver.LibvirtDriver, 'plug_vifs',
side_effect=processutils.ProcessExecutionError)
def test_pre_live_migration_plug_vifs_retry_fails(self, mock_plug,
mock_sleep):
self.flags(live_migration_retry_count=3)
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
disk_info_json = jsonutils.dumps({})
migrate_data = migrate_data_obj.LibvirtLiveMigrateData(
is_shared_block_storage=True,
is_shared_instance_path=True,
block_migration=False,
)
self.assertRaises(processutils.ProcessExecutionError,
drvr.pre_live_migration,
self.context, instance, block_device_info=None,
network_info=[], disk_info=disk_info_json,
migrate_data=migrate_data)
# Called 3 times because of live_migration_retry_count is 3
mock_plug.assert_has_calls([mock.call(instance, [])] * 3)
self.assertEqual(3, mock_plug.call_count)
# Called 'live_migration_retry_count - 1' times
mock_sleep.assert_has_calls([mock.call(1)] * 2)
self.assertEqual(2, mock_sleep.call_count)
@mock.patch.object(eventlet.greenthread, 'sleep',
side_effect=eventlet.sleep(0))
@mock.patch.object(libvirt_driver.LibvirtDriver, 'plug_vifs')
def test_pre_live_migration_plug_vifs_retry_works(self, mock_plug,
mock_sleep):
self.flags(live_migration_retry_count=3)
instance = objects.Instance(**self.test_instance)
mock_plug.side_effect = [processutils.ProcessExecutionError(),
processutils.ProcessExecutionError(), None]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
disk_info_json = jsonutils.dumps({})
migrate_data = migrate_data_obj.LibvirtLiveMigrateData(
is_shared_block_storage=True,
is_shared_instance_path=True,
block_migration=False,
)
drvr.pre_live_migration(self.context, instance, block_device_info=None,
network_info=[], disk_info=disk_info_json,
migrate_data=migrate_data)
# Called 3 times
mock_plug.assert_has_calls([mock.call(instance, [])] * 3)
self.assertEqual(3, mock_plug.call_count)
# Called 2 times because the third 'plug_vifs' call is successful.
mock_sleep.assert_has_calls([mock.call(1)] * 2)
self.assertEqual(2, mock_sleep.call_count)
def test_pre_live_migration_plug_vifs_with_dest_port_bindings(self):
"""Tests that we use the LibvirtLiveMigrateData.vifs destination host
port binding details when plugging VIFs during pre_live_migration.
"""
source_vif = network_model.VIF(
id=uuids.port_id, type=network_model.VIF_TYPE_OVS,
vnic_type=network_model.VNIC_TYPE_NORMAL, details={'foo': 'bar'},
profile={'binding:host_id': 'fake-source-host'})
migrate_vifs = [objects.VIFMigrateData(
port_id=uuids.port_id, vnic_type=network_model.VNIC_TYPE_NORMAL,
vif_type=network_model.VIF_TYPE_OVS, vif_details={'bar': 'baz'},
profile={'binding:host_id': 'fake-dest-host'},
host='fake-dest-host', source_vif=source_vif)]
migrate_data = migrate_data_obj.LibvirtLiveMigrateData(
vifs=migrate_vifs)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance()
network_info = mock.NonCallableMock()
with mock.patch.object(drvr, 'plug_vifs') as plug_vifs:
drvr._pre_live_migration_plug_vifs(
instance, network_info, migrate_data)
expected_network_info = network_model.NetworkInfo([
migrate_vifs[0].get_dest_vif()])
plug_vifs.assert_called_once_with(instance, expected_network_info)
def test_pre_live_migration_image_not_created_with_shared_storage(self):
migrate_data_set = [{'is_shared_block_storage': False,
'is_shared_instance_path': True,
'is_volume_backed': False,
'filename': 'foo',
'instance_relative_path': 'bar',
'disk_over_commit': False,
'disk_available_mb': 123,
'image_type': 'qcow2',
'block_migration': False},
{'is_shared_block_storage': True,
'is_shared_instance_path': True,
'is_volume_backed': False,
'filename': 'foo',
'instance_relative_path': 'bar',
'disk_over_commit': False,
'disk_available_mb': 123,
'image_type': 'qcow2',
'block_migration': False},
{'is_shared_block_storage': False,
'is_shared_instance_path': True,
'is_volume_backed': False,
'filename': 'foo',
'instance_relative_path': 'bar',
'disk_over_commit': False,
'disk_available_mb': 123,
'image_type': 'qcow2',
'block_migration': True}]
def _to_obj(d):
return migrate_data_obj.LibvirtLiveMigrateData(**d)
migrate_data_set = map(_to_obj, migrate_data_set)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
# creating mocks
with test.nested(
mock.patch.object(drvr,
'_create_images_and_backing'),
mock.patch.object(drvr,
'ensure_filtering_rules_for_instance'),
mock.patch.object(drvr, 'plug_vifs'),
) as (
create_image_mock,
rules_mock,
plug_mock,
):
disk_info_json = jsonutils.dumps({})
for migrate_data in migrate_data_set:
res = drvr.pre_live_migration(self.context, instance,
block_device_info=None,
network_info=[],
disk_info=disk_info_json,
migrate_data=migrate_data)
self.assertFalse(create_image_mock.called)
self.assertIsInstance(res,
objects.LibvirtLiveMigrateData)
@mock.patch('nova.virt.libvirt.utils.file_open',
side_effect=[io.BytesIO(b''), io.BytesIO(b'')])
def test_pre_live_migration_with_not_shared_instance_path(
self, mock_file_open):
migrate_data = migrate_data_obj.LibvirtLiveMigrateData(
is_shared_block_storage=False,
is_shared_instance_path=False,
block_migration=False,
instance_relative_path='foo',
)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
def check_instance_dir(context, instance,
instance_dir, disk_info,
fallback_from_host=False):
self.assertTrue(instance_dir)
# creating mocks
with test.nested(
mock.patch.object(drvr,
'_create_images_and_backing',
side_effect=check_instance_dir),
mock.patch.object(drvr,
'ensure_filtering_rules_for_instance'),
mock.patch.object(drvr, 'plug_vifs'),
) as (
create_image_mock,
rules_mock,
plug_mock,
):
disk_info_json = jsonutils.dumps({})
res = drvr.pre_live_migration(self.context, instance,
block_device_info=None,
network_info=[],
disk_info=disk_info_json,
migrate_data=migrate_data)
create_image_mock.assert_has_calls(
[mock.call(self.context, instance, mock.ANY, {},
fallback_from_host=instance.host)])
self.assertIsInstance(res, objects.LibvirtLiveMigrateData)
def test_pre_live_migration_recreate_disk_info(self):
migrate_data = migrate_data_obj.LibvirtLiveMigrateData(
is_shared_block_storage=False,
is_shared_instance_path=False,
block_migration=True,
instance_relative_path='/some/path/',
)
disk_info = [{'disk_size': 5368709120, 'type': 'raw',
'virt_disk_size': 5368709120,
'path': '/some/path/disk',
'backing_file': '', 'over_committed_disk_size': 0},
{'disk_size': 1073741824, 'type': 'raw',
'virt_disk_size': 1073741824,
'path': '/some/path/disk.eph0',
'backing_file': '', 'over_committed_disk_size': 0}]
image_disk_info = {'/some/path/disk': 'raw',
'/some/path/disk.eph0': 'raw'}
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
instance_path = os.path.dirname(disk_info[0]['path'])
disk_info_path = os.path.join(instance_path, 'disk.info')
with test.nested(
mock.patch.object(os, 'mkdir'),
mock.patch('nova.virt.libvirt.utils.write_to_file'),
mock.patch.object(drvr, '_create_images_and_backing')
) as (
mkdir, write_to_file, create_images_and_backing
):
drvr.pre_live_migration(self.context, instance,
block_device_info=None,
network_info=[],
disk_info=jsonutils.dumps(disk_info),
migrate_data=migrate_data)
write_to_file.assert_called_with(disk_info_path,
jsonutils.dumps(image_disk_info))
@mock.patch('nova.virt.libvirt.utils.file_open',
side_effect=[io.BytesIO(b''), io.BytesIO(b'')])
def test_pre_live_migration_with_perf_events(self, mock_file_open):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._supported_perf_events = ['cmt']
migrate_data = migrate_data_obj.LibvirtLiveMigrateData(
is_shared_block_storage=False,
is_shared_instance_path=False,
block_migration=False,
instance_relative_path='foo',
)
instance = objects.Instance(**self.test_instance)
res = drvr.pre_live_migration(self.context, instance,
block_device_info=None,
network_info=[],
disk_info=None,
migrate_data=migrate_data)
self.assertEqual(['cmt'], res.supported_perf_events)
@mock.patch('os.stat')
@mock.patch('os.path.getsize')
@mock.patch('nova.virt.disk.api.get_disk_info')
@mock.patch('nova.virt.libvirt.utils.get_disk_backing_file',
return_value='file')
def test_get_instance_disk_info_works_correctly(
self, mock_get_disk_backing_file, mock_qemu_img_info,
mock_get_size, mock_stat):
# Test data
instance = objects.Instance(**self.test_instance)
dummyxml = ("<domain type='kvm'><name>instance-0000000a</name>"
"<devices>"
"<disk type='file'><driver name='qemu' type='raw'/>"
"<source file='/test/disk'/>"
"<target dev='vda' bus='virtio'/></disk>"
"<disk type='file'><driver name='qemu' type='qcow2'/>"
"<source file='/test/disk.local'/>"
"<target dev='vdb' bus='virtio'/></disk>"
"</devices></domain>")
# Preparing mocks
vdmock = mock.Mock(autospec=fakelibvirt.virDomain)
vdmock.XMLDesc.return_value = dummyxml
mock_qemu_img_info.return_value = mock.Mock(disk_size=3328599655,
virtual_size=21474836480)
mock_stat.return_value = mock.Mock(st_blocks=20971520)
mock_get_size.return_value = 10737418240
def fake_lookup(_uuid):
if _uuid == instance.uuid:
return vdmock
self.create_fake_libvirt_mock(lookupByUUIDString=fake_lookup)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
info = drvr.get_instance_disk_info(instance)
info = jsonutils.loads(info)
self.assertEqual(info[0]['type'], 'raw')
self.assertEqual(info[0]['path'], '/test/disk')
self.assertEqual(info[0]['disk_size'], 10737418240)
self.assertEqual(info[0]['virt_disk_size'], 10737418240)
self.assertEqual(info[0]['backing_file'], "")
self.assertEqual(info[0]['over_committed_disk_size'], 0)
self.assertEqual(info[1]['type'], 'qcow2')
self.assertEqual(info[1]['path'], '/test/disk.local')
self.assertEqual(info[1]['disk_size'], 3328599655)
self.assertEqual(info[1]['virt_disk_size'], 21474836480)
self.assertEqual(info[1]['backing_file'], "file")
self.assertEqual(info[1]['over_committed_disk_size'], 18146236825)
vdmock.XMLDesc.assert_called_once_with(0)
mock_qemu_img_info.called_once_with('/test/disk.local')
mock_stat.called_once_with('/test/disk')
mock_get_size.called_once_with('/test/disk')
mock_get_disk_backing_file.assert_called()
def test_post_live_migration(self):
vol1_conn_info = {'data': {'test_data': mock.sentinel.vol1},
'serial': 'fake_serial1'}
vol2_conn_info = {'data': {'test_data': mock.sentinel.vol2},
'serial': 'fake_serial2'}
bdi = {'block_device_mapping': [
{'attachment_id': None,
'connection_info': vol1_conn_info,
'mount_device': '/dev/sda',
},
{'attachment_id': None,
'connection_info': vol2_conn_info,
'mount_device': '/dev/sdb', }]}
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
inst_ref = {'id': 'foo'}
cntx = context.get_admin_context()
# Set up the mock expectations
@mock.patch.object(driver, 'block_device_info_get_mapping',
return_value=bdi['block_device_mapping'])
@mock.patch.object(drvr, '_disconnect_volume')
def _test(_disconnect_volume, block_device_info_get_mapping):
drvr.post_live_migration(cntx, inst_ref, bdi)
block_device_info_get_mapping.assert_called_once_with(bdi)
_disconnect_volume.assert_has_calls([
mock.call(cntx, vol1_conn_info, inst_ref),
mock.call(cntx, vol2_conn_info, inst_ref)])
_test()
@mock.patch('os.stat')
@mock.patch('os.path.getsize')
@mock.patch('nova.virt.disk.api.get_disk_info')
@mock.patch('nova.virt.libvirt.utils.get_disk_backing_file',
return_value='file')
def test_get_instance_disk_info_excludes_volumes(
self, mock_get_disk_backing_file, mock_qemu_img_info,
mock_get_size, mock_stat):
# Test data
instance = objects.Instance(**self.test_instance)
dummyxml = ("<domain type='kvm'><name>instance-0000000a</name>"
"<devices>"
"<disk type='file'><driver name='qemu' type='raw'/>"
"<source file='/test/disk'/>"
"<target dev='vda' bus='virtio'/></disk>"
"<disk type='file'><driver name='qemu' type='qcow2'/>"
"<source file='/test/disk.local'/>"
"<target dev='vdb' bus='virtio'/></disk>"
"<disk type='file'><driver name='qemu' type='qcow2'/>"
"<source file='/fake/path/to/volume1'/>"
"<target dev='vdc' bus='virtio'/></disk>"
"<disk type='file'><driver name='qemu' type='qcow2'/>"
"<source file='/fake/path/to/volume2'/>"
"<target dev='vdd' bus='virtio'/></disk>"
"</devices></domain>")
# Preparing mocks
vdmock = mock.Mock(autospec=fakelibvirt.virDomain)
vdmock.XMLDesc.return_value = dummyxml
mock_qemu_img_info.return_value = mock.Mock(disk_size=3328599655,
virtual_size=21474836480)
mock_stat.return_value = mock.Mock(st_blocks=20971520)
mock_get_size.return_value = 10737418240
def fake_lookup(_uuid):
if _uuid == instance.uuid:
return vdmock
self.create_fake_libvirt_mock(lookupByUUIDString=fake_lookup)
conn_info = {'driver_volume_type': 'fake'}
info = {'block_device_mapping': [
{'connection_info': conn_info, 'mount_device': '/dev/vdc'},
{'connection_info': conn_info, 'mount_device': '/dev/vdd'}]}
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
info = drvr.get_instance_disk_info(instance,
block_device_info=info)
info = jsonutils.loads(info)
self.assertEqual(info[0]['type'], 'raw')
self.assertEqual(info[0]['path'], '/test/disk')
self.assertEqual(info[0]['disk_size'], 10737418240)
self.assertEqual(info[0]['backing_file'], "")
self.assertEqual(info[0]['over_committed_disk_size'], 0)
self.assertEqual(info[1]['type'], 'qcow2')
self.assertEqual(info[1]['path'], '/test/disk.local')
self.assertEqual(info[1]['virt_disk_size'], 21474836480)
self.assertEqual(info[1]['backing_file'], "file")
self.assertEqual(info[1]['over_committed_disk_size'], 18146236825)
vdmock.XMLDesc.assert_called_once_with(0)
mock_qemu_img_info.assert_called_once_with('/test/disk.local')
mock_stat.assert_called_once_with('/test/disk')
mock_get_size.assert_called_once_with('/test/disk')
mock_get_disk_backing_file.assert_called()
@mock.patch('os.stat')
@mock.patch('os.path.getsize')
def test_get_instance_disk_info_no_bdinfo_passed(self, mock_get_size,
mock_stat):
# NOTE(ndipanov): _get_disk_overcomitted_size_total calls this method
# without access to Nova's block device information. We want to make
# sure that we guess volumes mostly correctly in that case as well
instance = objects.Instance(**self.test_instance)
dummyxml = ("<domain type='kvm'><name>instance-0000000a</name>"
"<devices>"
"<disk type='file'><driver name='qemu' type='raw'/>"
"<source file='/test/disk'/>"
"<target dev='vda' bus='virtio'/></disk>"
"<disk type='block'><driver name='qemu' type='raw'/>"
"<source file='/fake/path/to/volume1'/>"
"<target dev='vdb' bus='virtio'/></disk>"
"</devices></domain>")
path = '/test/disk'
size = 10737418240
# Preparing mocks
vdmock = mock.Mock(autospec=fakelibvirt.virDomain)
vdmock.XMLDesc.return_value = dummyxml
mock_stat.return_value = mock.Mock(st_blocks=20971520)
mock_get_size.return_value = 10737418240
def fake_lookup(_uuid):
if _uuid == instance.uuid:
return vdmock
self.create_fake_libvirt_mock(lookupByUUIDString=fake_lookup)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
info = drvr.get_instance_disk_info(instance)
info = jsonutils.loads(info)
self.assertEqual(1, len(info))
self.assertEqual(info[0]['type'], 'raw')
self.assertEqual(info[0]['path'], path)
self.assertEqual(info[0]['disk_size'], size)
self.assertEqual(info[0]['backing_file'], "")
self.assertEqual(info[0]['over_committed_disk_size'], 0)
vdmock.XMLDesc.assert_called_once_with(0)
mock_stat.assert_called_once_with(path)
mock_get_size.assert_called_once_with(path)
def test_spawn_with_network_info(self):
def fake_getLibVersion():
return fakelibvirt.FAKE_LIBVIRT_VERSION
def fake_getCapabilities():
return """
<capabilities>
<host>
<uuid>cef19ce0-0ca2-11df-855d-b19fbce37686</uuid>
<cpu>
<arch>x86_64</arch>
<model>Penryn</model>
<vendor>Intel</vendor>
<topology sockets='1' cores='2' threads='1'/>
<feature name='xtpr'/>
</cpu>
</host>
</capabilities>
"""
def fake_baselineCPU(cpu, flag):
return """<cpu mode='custom' match='exact'>
<model fallback='allow'>Penryn</model>
<vendor>Intel</vendor>
<feature policy='require' name='xtpr'/>
</cpu>
"""
# _fake_network_info must be called before create_fake_libvirt_mock(),
# as _fake_network_info calls importutils.import_class() and
# create_fake_libvirt_mock() mocks importutils.import_class().
network_info = _fake_network_info(self, 1)
self.create_fake_libvirt_mock(getLibVersion=fake_getLibVersion,
getCapabilities=fake_getCapabilities,
getVersion=lambda: 1005001,
baselineCPU=fake_baselineCPU)
instance = objects.Instance(**self.test_instance)
instance.image_ref = uuids.image_ref
instance.config_drive = ''
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
self.useFixture(fake_imagebackend.ImageBackendFixture())
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with test.nested(
utils.tempdir(),
mock.patch('nova.virt.libvirt.driver.libvirt'),
mock.patch.object(drvr, '_build_device_metadata'),
mock.patch.object(drvr, 'get_info'),
mock.patch.object(drvr.firewall_driver, 'setup_basic_filtering'),
mock.patch.object(drvr.firewall_driver, 'prepare_instance_filter')
) as (
tmpdir,
mock_orig_libvirt,
mock_build_device_metadata,
mock_get_info,
mock_ignored, mock_ignored
):
self.flags(instances_path=tmpdir)
hw_running = hardware.InstanceInfo(state=power_state.RUNNING)
mock_get_info.return_value = hw_running
mock_build_device_metadata.return_value = None
del mock_orig_libvirt.VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES
drvr.spawn(self.context, instance, image_meta, [], 'herp', {},
network_info=network_info)
mock_get_info.assert_called_once_with(instance)
mock_build_device_metadata.assert_called_once_with(self.context,
instance)
# Methods called directly by spawn()
@mock.patch.object(libvirt_driver.LibvirtDriver, '_get_guest_xml')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_create_domain_and_network')
@mock.patch.object(libvirt_driver.LibvirtDriver, 'get_info')
# Methods called by _create_configdrive via post_xml_callback
@mock.patch('nova.virt.configdrive.ConfigDriveBuilder._make_iso9660')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_build_device_metadata')
@mock.patch.object(instance_metadata, 'InstanceMetadata')
def test_spawn_with_config_drive(self, mock_instance_metadata,
mock_build_device_metadata,
mock_mkisofs, mock_get_info,
mock_create_domain_and_network,
mock_get_guest_xml):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
instance.config_drive = 'True'
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
instance_info = hardware.InstanceInfo(state=power_state.RUNNING)
mock_build_device_metadata.return_value = None
def fake_create_domain_and_network(
context, xml, instance, network_info,
block_device_info=None, power_on=True,
vifs_already_plugged=False, post_xml_callback=None,
destroy_disks_on_failure=False):
# The config disk should be created by this callback, so we need
# to execute it.
post_xml_callback()
fake_backend = self.useFixture(
fake_imagebackend.ImageBackendFixture(exists=lambda _: False))
mock_get_info.return_value = instance_info
mock_create_domain_and_network.side_effect = \
fake_create_domain_and_network
drvr.spawn(self.context, instance, image_meta, [], None, {})
# We should have imported 'disk.config'
config_disk = fake_backend.disks['disk.config']
config_disk.import_file.assert_called_once_with(instance, mock.ANY,
'disk.config')
def test_spawn_without_image_meta(self):
instance_ref = self.test_instance
instance_ref['image_ref'] = 1
instance = objects.Instance(**instance_ref)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
fake_backend = self.useFixture(fake_imagebackend.ImageBackendFixture())
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver._get_guest_xml',
lambda *a, **kw: None)
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver.'
'_create_domain_and_network',
lambda *a, **kw: None)
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver.get_info',
lambda self, instance: hardware.InstanceInfo(
state=power_state.RUNNING))
drvr.spawn(self.context, instance, image_meta, [], None, {})
# We should have created a root disk and an ephemeral disk
self.assertEqual(['disk', 'disk.local'],
sorted(fake_backend.created_disks.keys()))
def _test_spawn_disks(self, image_ref, block_device_info):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
# Volume-backed instance created without image
instance = objects.Instance(**self.test_instance)
instance.image_ref = image_ref
instance.root_device_name = '/dev/vda'
instance.uuid = uuids.instance_uuid
backend = self.useFixture(fake_imagebackend.ImageBackendFixture())
with test.nested(
mock.patch.object(drvr, '_get_guest_xml'),
mock.patch.object(drvr, '_create_domain_and_network'),
mock.patch.object(drvr, 'get_info')
) as (
mock_get_guest_xml, mock_create_domain_and_network,
mock_get_info
):
hw_running = hardware.InstanceInfo(state=power_state.RUNNING)
mock_get_info.return_value = hw_running
drvr.spawn(self.context, instance,
image_meta, [], None, {},
block_device_info=block_device_info)
# Return a sorted list of created disks
return sorted(backend.created_disks.keys())
def test_spawn_from_volume_no_image_ref(self):
block_device_info = {'root_device_name': '/dev/vda',
'block_device_mapping': [
{'mount_device': 'vda',
'boot_index': 0}]}
disks_created = self._test_spawn_disks(None, block_device_info)
# We should have created the ephemeral disk, and nothing else
self.assertEqual(['disk.local'], disks_created)
def test_spawn_from_volume_with_image_ref(self):
block_device_info = {'root_device_name': '/dev/vda',
'block_device_mapping': [
{'mount_device': 'vda',
'boot_index': 0}]}
disks_created = self._test_spawn_disks(uuids.image_ref,
block_device_info)
# We should have created the ephemeral disk, and nothing else
self.assertEqual(['disk.local'], disks_created)
def test_spawn_from_image(self):
disks_created = self._test_spawn_disks(uuids.image_ref, None)
# We should have created the root and ephemeral disks
self.assertEqual(['disk', 'disk.local'], disks_created)
def test_start_lxc_from_volume(self):
self.flags(virt_type="lxc",
group='libvirt')
def check_setup_container(image, container_dir=None):
self.assertIsInstance(image, imgmodel.LocalBlockImage)
self.assertEqual(image.path, '/dev/path/to/dev')
return '/dev/nbd1'
bdm = {
'guest_format': None,
'boot_index': 0,
'mount_device': '/dev/sda',
'connection_info': {
'driver_volume_type': 'iscsi',
'serial': 'afc1',
'data': {
'access_mode': 'rw',
'target_discovered': False,
'encrypted': False,
'qos_specs': None,
'target_iqn': 'iqn: volume-afc1',
'target_portal': 'ip: 3260',
'volume_id': 'afc1',
'target_lun': 1,
'auth_password': 'uj',
'auth_username': '47',
'auth_method': 'CHAP'
}
},
'disk_bus': 'scsi',
'device_type': 'disk',
'delete_on_termination': False
}
def _connect_volume_side_effect(ctxt, connection_info, instance):
bdm['connection_info']['data']['device_path'] = '/dev/path/to/dev'
def _get(key, opt=None):
return bdm.get(key, opt)
def getitem(key):
return bdm[key]
def setitem(key, val):
bdm[key] = val
bdm_mock = mock.MagicMock()
bdm_mock.__getitem__.side_effect = getitem
bdm_mock.__setitem__.side_effect = setitem
bdm_mock.get = _get
disk_mock = mock.MagicMock()
disk_mock.source_path = '/dev/path/to/dev'
block_device_info = {'block_device_mapping': [bdm_mock],
'root_device_name': '/dev/sda'}
# Volume-backed instance created without image
instance_ref = self.test_instance
instance_ref['image_ref'] = ''
instance_ref['root_device_name'] = '/dev/sda'
instance_ref['ephemeral_gb'] = 0
instance_ref['uuid'] = uuids.fake
inst_obj = objects.Instance(**instance_ref)
image_meta = objects.ImageMeta.from_dict({})
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with test.nested(
mock.patch.object(drvr, 'plug_vifs'),
mock.patch.object(drvr.firewall_driver, 'setup_basic_filtering'),
mock.patch.object(drvr.firewall_driver, 'prepare_instance_filter'),
mock.patch.object(drvr.firewall_driver, 'apply_instance_filter'),
mock.patch.object(drvr, '_create_domain'),
mock.patch.object(drvr, '_connect_volume',
side_effect=_connect_volume_side_effect),
mock.patch.object(drvr, '_get_volume_config',
return_value=disk_mock),
mock.patch.object(drvr, 'get_info',
return_value=hardware.InstanceInfo(
state=power_state.RUNNING)),
mock.patch('nova.virt.disk.api.setup_container',
side_effect=check_setup_container),
mock.patch('nova.virt.disk.api.teardown_container'),
mock.patch.object(objects.Instance, 'save')):
drvr.spawn(self.context, inst_obj, image_meta, [], None, {},
network_info=[],
block_device_info=block_device_info)
self.assertEqual('/dev/nbd1',
inst_obj.system_metadata.get(
'rootfs_device_name'))
def test_spawn_with_pci_devices(self):
class FakeLibvirtPciDevice(object):
def dettach(self):
return None
def reset(self):
return None
def fake_node_device_lookup_by_name(address):
pattern = ("pci_%(hex)s{4}_%(hex)s{2}_%(hex)s{2}_%(oct)s{1}"
% dict(hex='[\da-f]', oct='[0-8]'))
pattern = re.compile(pattern)
if pattern.match(address) is None:
raise fakelibvirt.libvirtError()
return FakeLibvirtPciDevice()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver._get_guest_xml',
lambda *args, **kwargs: None)
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver.'
'_create_domain_and_network',
lambda *args, **kwargs: None)
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver.get_info',
lambda self, instance: hardware.InstanceInfo(
state=power_state.RUNNING))
mock_connection = mock.MagicMock(
nodeDeviceLookupByName=fake_node_device_lookup_by_name)
instance_ref = self.test_instance
instance_ref['image_ref'] = 'my_fake_image'
instance = objects.Instance(**instance_ref)
instance['pci_devices'] = objects.PciDeviceList(
objects=[objects.PciDevice(address='0000:00:00.0')])
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
self.useFixture(fake_imagebackend.ImageBackendFixture())
with mock.patch.object(drvr, '_get_connection',
return_value=mock_connection):
drvr.spawn(self.context, instance, image_meta, [], None, {})
def _test_create_image_plain(self, os_type='', filename='', mkfs=False):
gotFiles = []
instance_ref = self.test_instance
instance_ref['image_ref'] = 1
instance = objects.Instance(**instance_ref)
instance['os_type'] = os_type
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver._get_guest_xml',
lambda *args, **kwargs: None)
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver.'
'_create_domain_and_network',
lambda *args, **kwargs: None)
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver.get_info',
lambda self, instance: hardware.InstanceInfo(
state=power_state.RUNNING))
if mkfs:
self.stub_out(
'nova.privsep.fs._MKFS_COMMAND',
{os_type: 'mkfs.ext4 --label %(fs_label)s %(target)s'})
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance,
image_meta)
self.useFixture(
fake_imagebackend.ImageBackendFixture(got_files=gotFiles))
drvr._create_image(self.context, instance, disk_info['mapping'])
drvr._get_guest_xml(self.context, instance, None,
disk_info, image_meta)
wantFiles = [
{'filename': '356a192b7913b04c54574d18c28d46e6395428ab',
'size': 10 * units.Gi},
{'filename': filename,
'size': 20 * units.Gi},
]
self.assertEqual(gotFiles, wantFiles)
def test_create_image_plain_os_type_blank(self):
self._test_create_image_plain(os_type='',
filename=self._EPHEMERAL_20_DEFAULT,
mkfs=False)
def test_create_image_plain_os_type_none(self):
self._test_create_image_plain(os_type=None,
filename=self._EPHEMERAL_20_DEFAULT,
mkfs=False)
def test_create_image_plain_os_type_set_no_fs(self):
self._test_create_image_plain(os_type='test',
filename=self._EPHEMERAL_20_DEFAULT,
mkfs=False)
def test_create_image_plain_os_type_set_with_fs(self):
ephemeral_file_name = ('ephemeral_20_%s' % utils.get_hash_str(
'mkfs.ext4 --label %(fs_label)s %(target)s')[:7])
self._test_create_image_plain(os_type='test',
filename=ephemeral_file_name,
mkfs=True)
def test_create_image_initrd(self):
kernel_id = uuids.kernel_id
ramdisk_id = uuids.ramdisk_id
kernel_fname = imagecache.get_cache_fname(kernel_id)
ramdisk_fname = imagecache.get_cache_fname(ramdisk_id)
filename = self._EPHEMERAL_20_DEFAULT
gotFiles = []
instance_ref = self.test_instance
instance_ref['image_ref'] = uuids.instance_id
instance_ref['kernel_id'] = uuids.kernel_id
instance_ref['ramdisk_id'] = uuids.ramdisk_id
instance_ref['os_type'] = 'test'
instance = objects.Instance(**instance_ref)
driver = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
fake_backend = self.useFixture(
fake_imagebackend.ImageBackendFixture(got_files=gotFiles))
with test.nested(
mock.patch.object(driver, '_get_guest_xml'),
mock.patch.object(driver, '_create_domain_and_network'),
mock.patch.object(driver, 'get_info',
return_value=[hardware.InstanceInfo(state=power_state.RUNNING)])
):
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance,
image_meta)
driver._create_image(self.context, instance, disk_info['mapping'])
# Assert that kernel and ramdisk were fetched with fetch_raw_image
# and no size
for name, disk in fake_backend.disks.items():
cache = disk.cache
if name in ('kernel', 'ramdisk'):
cache.assert_called_once_with(
context=self.context, filename=mock.ANY, image_id=mock.ANY,
fetch_func=fake_backend.mock_fetch_raw_image)
wantFiles = [
{'filename': kernel_fname,
'size': None},
{'filename': ramdisk_fname,
'size': None},
{'filename': imagecache.get_cache_fname(uuids.instance_id),
'size': 10 * units.Gi},
{'filename': filename,
'size': 20 * units.Gi},
]
self.assertEqual(wantFiles, gotFiles)
def test_injection_info_is_sanitized(self):
info = get_injection_info(
network_info=mock.sentinel.network_info,
files=mock.sentinel.files,
admin_pass='verybadpass')
self.assertNotIn('verybadpass', str(info))
self.assertNotIn('verybadpass', repr(info))
@mock.patch(
'nova.virt.libvirt.driver.LibvirtDriver._build_device_metadata')
@mock.patch('nova.api.metadata.base.InstanceMetadata')
@mock.patch('nova.virt.configdrive.ConfigDriveBuilder.make_drive')
def test_create_configdrive(self, mock_make_drive,
mock_instance_metadata,
mock_build_device_metadata):
instance = objects.Instance(**self.test_instance)
instance.config_drive = 'True'
backend = self.useFixture(
fake_imagebackend.ImageBackendFixture(exists=lambda path: False))
mock_build_device_metadata.return_value = None
injection_info = get_injection_info(
network_info=mock.sentinel.network_info,
admin_pass=mock.sentinel.admin_pass,
files=mock.sentinel.files
)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._create_configdrive(self.context, instance, injection_info)
expected_config_drive_path = os.path.join(
CONF.instances_path, instance.uuid, 'disk.config')
mock_make_drive.assert_called_once_with(expected_config_drive_path)
mock_instance_metadata.assert_called_once_with(instance,
request_context=self.context,
network_info=mock.sentinel.network_info,
content=mock.sentinel.files,
extra_md={'admin_pass': mock.sentinel.admin_pass})
backend.disks['disk.config'].import_file.assert_called_once_with(
instance, mock.ANY, 'disk.config')
@ddt.unpack
@ddt.data({'expected': 200, 'flavor_size': 200},
{'expected': 100, 'flavor_size': 200, 'bdi_size': 100},
{'expected': 200, 'flavor_size': 200, 'bdi_size': 100,
'legacy': True})
def test_create_image_with_swap(self, expected,
flavor_size=None, bdi_size=None,
legacy=False):
# Test the precedence of swap disk size specified in both the bdm and
# the flavor.
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance_ref = self.test_instance
instance_ref['image_ref'] = ''
instance = objects.Instance(**instance_ref)
if flavor_size is not None:
instance.flavor.swap = flavor_size
bdi = {'block_device_mapping': [{'boot_index': 0}]}
if bdi_size is not None:
bdi['swap'] = {'swap_size': bdi_size, 'device_name': '/dev/vdb'}
create_image_kwargs = {}
if legacy:
create_image_kwargs['ignore_bdi_for_swap'] = True
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance, image_meta,
block_device_info=bdi)
backend = self.useFixture(fake_imagebackend.ImageBackendFixture())
drvr._create_image(self.context, instance, disk_info['mapping'],
block_device_info=bdi, **create_image_kwargs)
backend.mock_create_swap.assert_called_once_with(
target='swap_%i' % expected, swap_mb=expected,
context=self.context)
backend.disks['disk.swap'].cache.assert_called_once_with(
fetch_func=mock.ANY, filename='swap_%i' % expected,
size=expected * units.Mi, context=self.context, swap_mb=expected)
@mock.patch.object(nova.virt.libvirt.imagebackend.Image, 'cache')
def test_create_vz_container_with_swap(self, mock_cache):
self.flags(virt_type='parallels', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
instance_ref = copy.deepcopy(self.test_instance)
instance_ref['vm_mode'] = fields.VMMode.EXE
instance_ref['flavor'].swap = 1024
instance = objects.Instance(**instance_ref)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance, image_meta)
self.assertRaises(exception.Invalid,
drvr._create_image,
self.context, instance, disk_info['mapping'])
@mock.patch.object(nova.virt.libvirt.imagebackend.Image, 'cache',
side_effect=exception.ImageNotFound(image_id='fake-id'))
def test_create_image_not_exist_no_fallback(self, mock_cache):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance,
image_meta)
self.assertRaises(exception.ImageNotFound,
drvr._create_image,
self.context, instance, disk_info['mapping'])
@mock.patch.object(nova.virt.libvirt.imagebackend.Image, 'cache')
def test_create_image_not_exist_fallback(self, mock_cache):
def side_effect(fetch_func, filename, size=None, *args, **kwargs):
def second_call(fetch_func, filename, size=None, *args, **kwargs):
# call copy_from_host ourselves because we mocked image.cache()
fetch_func('fake-target')
# further calls have no side effect
mock_cache.side_effect = None
mock_cache.side_effect = second_call
# raise an error only the first call
raise exception.ImageNotFound(image_id='fake-id')
mock_cache.side_effect = side_effect
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance,
image_meta)
with mock.patch('nova.virt.libvirt.utils.copy_image') as mock_copy:
drvr._create_image(self.context, instance, disk_info['mapping'],
fallback_from_host='fake-source-host')
mock_copy.assert_called_once_with(src='fake-target',
dest='fake-target',
host='fake-source-host',
receive=True)
@mock.patch('nova.privsep.fs.get_file_extension_for_os_type')
def test_create_image_with_ephemerals(self, mock_get_ext):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance_ref = self.test_instance
instance_ref['image_ref'] = ''
instance = objects.Instance(**instance_ref)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
bdi = {'ephemerals': [{'size': 100}],
'block_device_mapping': [{'boot_index': 0}]}
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance, image_meta,
block_device_info=bdi)
mock_get_ext.return_value = mock.sentinel.file_ext
backend = self.useFixture(fake_imagebackend.ImageBackendFixture())
drvr._create_image(self.context, instance, disk_info['mapping'],
block_device_info=bdi)
filename = 'ephemeral_100_%s' % mock.sentinel.file_ext
backend.mock_create_ephemeral.assert_called_once_with(
target=filename, ephemeral_size=100, fs_label='ephemeral0',
is_block_dev=mock.sentinel.is_block_dev, os_type='linux',
specified_fs=None, context=self.context, vm_mode=None)
backend.disks['disk.eph0'].cache.assert_called_once_with(
fetch_func=mock.ANY, context=self.context,
filename=filename, size=100 * units.Gi, ephemeral_size=mock.ANY,
specified_fs=None)
@mock.patch.object(nova.virt.libvirt.imagebackend.Image, 'cache')
def test_create_image_resize_snap_backend(self, mock_cache):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
instance.task_state = task_states.RESIZE_FINISH
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance,
image_meta)
fake_backend = self.useFixture(fake_imagebackend.ImageBackendFixture())
drvr._create_image(self.context, instance, disk_info['mapping'])
# Assert we called create_snap on the root disk
fake_backend.disks['disk'].create_snap.assert_called_once_with(
libvirt_utils.RESIZE_SNAPSHOT_NAME)
@mock.patch('nova.privsep.fs.mkfs')
def test_create_ephemeral_specified_fs(self, fake_mkfs):
self.flags(default_ephemeral_format='ext3')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._create_ephemeral('/dev/something', 20, 'myVol', 'linux',
is_block_dev=True, specified_fs='ext4')
fake_mkfs.assert_has_calls([mock.call('ext4', '/dev/something',
'myVol')])
@mock.patch('nova.privsep.path.utime')
@mock.patch('nova.virt.libvirt.utils.fetch_image')
@mock.patch('nova.virt.libvirt.utils.create_cow_image')
def test_create_ephemeral_specified_fs_not_valid(
self, mock_create_cow_image, mock_fetch_image, mock_utime):
CONF.set_override('default_ephemeral_format', 'ext4')
ephemerals = [{'device_type': 'disk',
'disk_bus': 'virtio',
'device_name': '/dev/vdb',
'guest_format': 'dummy',
'size': 1}]
block_device_info = {
'ephemerals': ephemerals}
instance_ref = self.test_instance
instance_ref['image_ref'] = 1
instance = objects.Instance(**instance_ref)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
image_meta = objects.ImageMeta.from_dict({'disk_format': 'raw'})
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance,
image_meta)
disk_info['mapping'].pop('disk.local')
with test.nested(
mock.patch.object(utils, 'execute'),
mock.patch.object(drvr, 'get_info'),
mock.patch.object(drvr, '_create_domain_and_network'),
mock.patch.object(imagebackend.Image, 'verify_base_size'),
mock.patch.object(imagebackend.Image, 'get_disk_size')
) as (execute_mock, get_info_mock,
create_mock, verify_base_size_mock, disk_size_mock):
disk_size_mock.return_value = 0
self.assertRaises(exception.InvalidBDMFormat, drvr._create_image,
context, instance, disk_info['mapping'],
block_device_info=block_device_info)
@mock.patch('nova.privsep.fs.mkfs')
def test_create_ephemeral_default(self, fake_mkfs):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._create_ephemeral('/dev/something', 20, 'myVol', 'linux',
is_block_dev=True)
fake_mkfs.assert_has_calls([mock.call('ext4', '/dev/something',
'myVol')])
@mock.patch('nova.privsep.fs.mkfs')
def test_create_ephemeral_with_conf(self, fake_mkfs):
CONF.set_override('default_ephemeral_format', 'ext4')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._create_ephemeral('/dev/something', 20, 'myVol', 'linux',
is_block_dev=True)
fake_mkfs.assert_has_calls([mock.call('ext4', '/dev/something',
'myVol')])
@mock.patch('nova.privsep.fs.configurable_mkfs')
def test_create_ephemeral_with_arbitrary(self, fake_mkfs):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.stub_out('nova.privsep.fs._MKFS_COMMAND',
{'linux': 'mkfs.ext4 --label %(fs_label)s %(target)s'})
drvr._create_ephemeral('/dev/something', 20, 'myVol', 'linux',
is_block_dev=True)
fake_mkfs.assert_has_calls([mock.call('linux', 'myVol',
'/dev/something', True, None,
None)])
@mock.patch('nova.privsep.fs.configurable_mkfs')
def test_create_ephemeral_with_ext3(self, fake_mkfs):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.stub_out('nova.privsep.fs._MKFS_COMMAND',
{'linux': 'mkfs.ext3 --label %(fs_label)s %(target)s'})
drvr._create_ephemeral('/dev/something', 20, 'myVol', 'linux',
is_block_dev=True)
fake_mkfs.assert_has_calls([mock.call('linux', 'myVol',
'/dev/something', True, None,
None)])
@mock.patch('nova.virt.libvirt.utils.create_ploop_image')
def test_create_ephemeral_parallels(self, mock_create_ploop):
self.flags(virt_type='parallels', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._create_ephemeral('/dev/something', 20, 'myVol', 'linux',
is_block_dev=False,
specified_fs='fs_format',
vm_mode=fields.VMMode.EXE)
mock_create_ploop.assert_called_once_with('expanded',
'/dev/something',
'20G', 'fs_format')
@mock.patch('nova.privsep.fs.unprivileged_mkfs')
@mock.patch('nova.virt.libvirt.utils.create_image')
def test_create_swap_default(self, mock_create_image, mock_mkfs):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._create_swap('/dev/something', 1)
mock_mkfs.assert_has_calls([mock.call('swap', '/dev/something')])
def test_ensure_console_log_for_instance_pass(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with test.nested(
mock.patch.object(drvr, '_get_console_log_path'),
mock.patch('nova.virt.libvirt.utils.file_open')
) as (mock_path, mock_open):
drvr._ensure_console_log_for_instance(mock.ANY)
mock_path.assert_called_once()
mock_open.assert_called_once()
def test_ensure_console_log_for_instance_pass_w_permissions(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with test.nested(
mock.patch.object(drvr, '_get_console_log_path'),
mock.patch('nova.virt.libvirt.utils.file_open',
side_effect=IOError(errno.EACCES, 'exc'))
) as (mock_path, mock_open):
drvr._ensure_console_log_for_instance(mock.ANY)
mock_path.assert_called_once()
mock_open.assert_called_once()
def test_ensure_console_log_for_instance_fail(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with test.nested(
mock.patch.object(drvr, '_get_console_log_path'),
mock.patch('nova.virt.libvirt.utils.file_open',
side_effect=IOError(errno.EREMOTE, 'exc'))
) as (mock_path, mock_open):
self.assertRaises(
IOError,
drvr._ensure_console_log_for_instance,
mock.ANY)
@mock.patch('nova.privsep.path.last_bytes',
return_value=(b'67890', 0))
def test_get_console_output_file(self, mock_last_bytes):
with utils.tempdir() as tmpdir:
self.flags(instances_path=tmpdir)
instance_ref = self.test_instance
instance_ref['image_ref'] = 123456
instance = objects.Instance(**instance_ref)
console_dir = (os.path.join(tmpdir, instance['name']))
console_log = '%s/console.log' % (console_dir)
fake_dom_xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='filename'/>
</disk>
<console type='file'>
<source path='%s'/>
<target port='0'/>
</console>
</devices>
</domain>
""" % console_log
def fake_lookup(id):
return FakeVirtDomain(fake_dom_xml)
self.create_fake_libvirt_mock()
libvirt_driver.LibvirtDriver._conn.lookupByUUIDString = fake_lookup
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
try:
prev_max = libvirt_driver.MAX_CONSOLE_BYTES
libvirt_driver.MAX_CONSOLE_BYTES = 5
with mock.patch('os.path.exists', return_value=True):
output = drvr.get_console_output(self.context, instance)
finally:
libvirt_driver.MAX_CONSOLE_BYTES = prev_max
self.assertEqual(b'67890', output)
# this test resembles test_get_console_output_file() except
# that the instance was created with a tcp-based serial console
# which results in a different XML
@mock.patch('nova.privsep.path.last_bytes',
return_value=(b'67891', 0))
def test_get_console_output_tcp(self, mock_last_bytes):
with utils.tempdir() as tmpdir:
self.flags(instances_path=tmpdir)
# flags to enable the serial console are not necessary
# as we use a fake dom
instance_ref = self.test_instance
instance_ref['image_ref'] = 123456
instance = objects.Instance(**instance_ref)
console_dir = (os.path.join(tmpdir, instance['name']))
console_log = '%s/console.log' % (console_dir)
fake_dom_xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='filename'/>
</disk>
<console type='tcp'>
<log file='%s'/>
</console>
</devices>
</domain>
""" % console_log
def fake_lookup(id):
return FakeVirtDomain(fake_dom_xml)
self.create_fake_libvirt_mock()
libvirt_driver.LibvirtDriver._conn.lookupByUUIDString = fake_lookup
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
try:
prev_max = libvirt_driver.MAX_CONSOLE_BYTES
libvirt_driver.MAX_CONSOLE_BYTES = 5
with mock.patch('os.path.exists', return_value=True):
output = drvr.get_console_output(self.context, instance)
finally:
libvirt_driver.MAX_CONSOLE_BYTES = prev_max
self.assertEqual(b'67891', output)
def test_get_console_output_file_missing(self):
with utils.tempdir() as tmpdir:
self.flags(instances_path=tmpdir)
instance_ref = self.test_instance
instance_ref['image_ref'] = 123456
instance = objects.Instance(**instance_ref)
console_log = os.path.join(tmpdir, instance['name'],
'non-existent.log')
fake_dom_xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='filename'/>
</disk>
<console type='file'>
<source path='%s'/>
<target port='0'/>
</console>
</devices>
</domain>
""" % console_log
def fake_lookup(id):
return FakeVirtDomain(fake_dom_xml)
self.create_fake_libvirt_mock()
libvirt_driver.LibvirtDriver._conn.lookupByUUIDString = fake_lookup
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with mock.patch('os.path.exists', return_value=False):
output = drvr.get_console_output(self.context, instance)
self.assertEqual('', output)
@mock.patch('os.path.exists', return_value=True)
@mock.patch('nova.privsep.path.last_bytes',
return_value=(b'67890', 0))
@mock.patch('nova.privsep.path.writefile')
@mock.patch('nova.privsep.libvirt.readpty')
def test_get_console_output_pty(self, mocked_readfile, mocked_writefile,
mocked_last_bytes, mocked_path_exists):
with utils.tempdir() as tmpdir:
self.flags(instances_path=tmpdir)
instance_ref = self.test_instance
instance_ref['image_ref'] = 123456
instance = objects.Instance(**instance_ref)
console_dir = (os.path.join(tmpdir, instance['name']))
pty_file = '%s/fake_pty' % (console_dir)
fake_dom_xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='filename'/>
</disk>
<console type='pty'>
<source path='%s'/>
<target port='0'/>
</console>
</devices>
</domain>
""" % pty_file
def fake_lookup(id):
return FakeVirtDomain(fake_dom_xml)
mocked_readfile.return_value = 'foo'
self.create_fake_libvirt_mock()
libvirt_driver.LibvirtDriver._conn.lookupByUUIDString = fake_lookup
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
try:
prev_max = libvirt_driver.MAX_CONSOLE_BYTES
libvirt_driver.MAX_CONSOLE_BYTES = 5
output = drvr.get_console_output(self.context, instance)
finally:
libvirt_driver.MAX_CONSOLE_BYTES = prev_max
self.assertEqual(b'67890', output)
def test_get_console_output_pty_not_available(self):
instance = objects.Instance(**self.test_instance)
fake_dom_xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='filename'/>
</disk>
<console type='pty'>
<target port='0'/>
</console>
</devices>
</domain>
"""
def fake_lookup(id):
return FakeVirtDomain(fake_dom_xml)
self.create_fake_libvirt_mock()
libvirt_driver.LibvirtDriver._conn.lookupByUUIDString = fake_lookup
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertRaises(exception.ConsoleNotAvailable,
drvr.get_console_output, self.context, instance)
@mock.patch('nova.virt.libvirt.host.Host._get_domain')
@mock.patch.object(libvirt_guest.Guest, "get_xml_desc")
def test_get_console_output_not_available(self, mock_get_xml, get_domain):
xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='filename'/>
</disk>
<console type='foo'>
<source path='srcpath'/>
<target port='0'/>
</console>
</devices>
</domain>
"""
mock_get_xml.return_value = xml
get_domain.return_value = mock.MagicMock()
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertRaises(exception.ConsoleNotAvailable,
drvr.get_console_output, self.context, instance)
@mock.patch('nova.virt.libvirt.host.Host._get_domain')
@mock.patch.object(libvirt_guest.Guest, 'get_xml_desc')
def test_get_console_output_logrotate(self, mock_get_xml, get_domain):
fake_libvirt_utils.files['console.log'] = b'uvwxyz'
fake_libvirt_utils.files['console.log.0'] = b'klmnopqrst'
fake_libvirt_utils.files['console.log.1'] = b'abcdefghij'
def mock_path_exists(path):
return os.path.basename(path) in fake_libvirt_utils.files
def mock_last_bytes(path, count):
with fake_libvirt_utils.file_open(path) as flo:
return nova.privsep.path._last_bytes_inner(flo, count)
xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='filename'/>
</disk>
<console type='file'>
<source path='console.log'/>
<target port='0'/>
</console>
</devices>
</domain>
"""
mock_get_xml.return_value = xml
get_domain.return_value = mock.MagicMock()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance = objects.Instance(**self.test_instance)
def _get_logd_output(bytes_to_read):
with utils.tempdir() as tmp_dir:
self.flags(instances_path=tmp_dir)
log_data = ""
try:
prev_max = libvirt_driver.MAX_CONSOLE_BYTES
libvirt_driver.MAX_CONSOLE_BYTES = bytes_to_read
with mock.patch('os.path.exists',
side_effect=mock_path_exists):
with mock.patch('nova.privsep.path.last_bytes',
side_effect=mock_last_bytes):
log_data = drvr.get_console_output(self.context,
instance)
finally:
libvirt_driver.MAX_CONSOLE_BYTES = prev_max
return log_data
# span across only 1 file (with remaining bytes)
self.assertEqual(b'wxyz', _get_logd_output(4))
# span across only 1 file (exact bytes)
self.assertEqual(b'uvwxyz', _get_logd_output(6))
# span across 2 files (with remaining bytes)
self.assertEqual(b'opqrstuvwxyz', _get_logd_output(12))
# span across all files (exact bytes)
self.assertEqual(b'abcdefghijklmnopqrstuvwxyz', _get_logd_output(26))
# span across all files with more bytes than available
self.assertEqual(b'abcdefghijklmnopqrstuvwxyz', _get_logd_output(30))
# files are not available
fake_libvirt_utils.files = {}
self.assertEqual('', _get_logd_output(30))
# reset the file for other tests
fake_libvirt_utils.files['console.log'] = b'01234567890'
def test_get_host_ip_addr(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
ip = drvr.get_host_ip_addr()
self.assertEqual(ip, CONF.my_ip)
@mock.patch.object(libvirt_driver.LOG, 'warning')
@mock.patch('nova.compute.utils.get_machine_ips')
def test_get_host_ip_addr_failure(self, mock_ips, mock_log):
mock_ips.return_value = ['8.8.8.8', '75.75.75.75']
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr.get_host_ip_addr()
mock_log.assert_called_once_with(u'my_ip address (%(my_ip)s) was '
u'not found on any of the '
u'interfaces: %(ifaces)s',
{'ifaces': '8.8.8.8, 75.75.75.75',
'my_ip': mock.ANY})
def test_conn_event_handler(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
service_mock = mock.MagicMock()
service_mock.disabled.return_value = False
with test.nested(
mock.patch.object(drvr._host, "_connect",
side_effect=fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
"Failed to connect to host",
error_code=
fakelibvirt.VIR_ERR_INTERNAL_ERROR)),
mock.patch.object(drvr._host, "_init_events",
return_value=None),
mock.patch.object(objects.Service, "get_by_compute_host",
return_value=service_mock)):
# verify that the driver registers for the close callback
# and re-connects after receiving the callback
self.assertRaises(exception.HypervisorUnavailable,
drvr.init_host,
"wibble")
self.assertTrue(service_mock.disabled)
def test_command_with_broken_connection(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
service_mock = mock.MagicMock()
service_mock.disabled.return_value = False
with test.nested(
mock.patch.object(drvr._host, "_connect",
side_effect=fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
"Failed to connect to host",
error_code=
fakelibvirt.VIR_ERR_INTERNAL_ERROR)),
mock.patch.object(drvr._host, "_init_events",
return_value=None),
mock.patch.object(host.Host, "has_min_version",
return_value=True),
mock.patch.object(drvr, "_do_quality_warnings",
return_value=None),
mock.patch.object(objects.Service, "get_by_compute_host",
return_value=service_mock),
mock.patch.object(host.Host, "get_capabilities")):
self.assertRaises(exception.HypervisorUnavailable,
drvr.init_host, ("wibble",))
self.assertTrue(service_mock.disabled)
def test_service_resume_after_broken_connection(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
service_mock = mock.MagicMock()
service_mock.disabled.return_value = True
with test.nested(
mock.patch.object(drvr._host, "_connect",
return_value=mock.MagicMock()),
mock.patch.object(drvr._host, "_init_events",
return_value=None),
mock.patch.object(host.Host, "has_min_version",
return_value=True),
mock.patch.object(drvr, "_do_quality_warnings",
return_value=None),
mock.patch.object(objects.Service, "get_by_compute_host",
return_value=service_mock),
mock.patch.object(host.Host, "get_capabilities")):
drvr.init_host("wibble")
drvr.get_num_instances()
drvr._host._dispatch_conn_event()
self.assertFalse(service_mock.disabled)
self.assertIsNone(service_mock.disabled_reason)
@mock.patch.object(libvirt_driver.LibvirtDriver, 'delete_instance_files')
@mock.patch.object(host.Host, '_get_domain',
side_effect=exception.InstanceNotFound(
instance_id=uuids.instance))
@mock.patch.object(objects.Instance, 'save')
def test_immediate_delete(self, mock_save, mock_get, mock_delete):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(self.context, **self.test_instance)
drvr.destroy(self.context, instance, {})
mock_save.assert_called_once_with()
mock_get.assert_has_calls([mock.call(instance)] * 3)
self.assertEqual(3, mock_get.call_count)
mock_delete.assert_called_once_with(instance)
@mock.patch.object(objects.Instance, 'get_by_uuid')
@mock.patch.object(objects.Instance, 'obj_load_attr', autospec=True)
@mock.patch.object(objects.Instance, 'save', autospec=True)
@mock.patch.object(libvirt_driver.LibvirtDriver, '_destroy')
@mock.patch.object(libvirt_driver.LibvirtDriver, 'delete_instance_files')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_disconnect_volume')
@mock.patch.object(driver, 'block_device_info_get_mapping')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_undefine_domain')
def _test_destroy_removes_disk(self, mock_undefine_domain, mock_mapping,
mock_disconnect_volume,
mock_delete_instance_files, mock_destroy,
mock_inst_save, mock_inst_obj_load_attr,
mock_get_by_uuid, volume_fail=False):
instance = objects.Instance(self.context, **self.test_instance)
vol = {'block_device_mapping': [
{'connection_info': 'dummy', 'mount_device': '/dev/sdb'}]}
mock_mapping.return_value = vol['block_device_mapping']
mock_delete_instance_files.return_value = True
mock_get_by_uuid.return_value = instance
if volume_fail:
mock_disconnect_volume.return_value = (
exception.VolumeNotFound('vol'))
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr.destroy(self.context, instance, [], vol)
def test_destroy_removes_disk(self):
self._test_destroy_removes_disk(volume_fail=False)
def test_destroy_removes_disk_volume_fails(self):
self._test_destroy_removes_disk(volume_fail=True)
@mock.patch.object(libvirt_driver.LibvirtDriver, 'unplug_vifs')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_destroy')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_undefine_domain')
def test_destroy_not_removes_disk(self, mock_undefine_domain, mock_destroy,
mock_unplug_vifs):
instance = fake_instance.fake_instance_obj(
None, name='instancename', id=1,
uuid='875a8070-d0b9-4949-8b31-104d125c9a64')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr.destroy(self.context, instance, [], None, False)
@mock.patch.object(libvirt_driver.LibvirtDriver, 'cleanup')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_teardown_container')
@mock.patch.object(host.Host, '_get_domain')
def test_destroy_lxc_calls_teardown_container(self, mock_get_domain,
mock_teardown_container,
mock_cleanup):
self.flags(virt_type='lxc', group='libvirt')
fake_domain = FakeVirtDomain()
def destroy_side_effect(*args, **kwargs):
fake_domain._info[0] = power_state.SHUTDOWN
with mock.patch.object(fake_domain, 'destroy',
side_effect=destroy_side_effect) as mock_domain_destroy:
mock_get_domain.return_value = fake_domain
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
network_info = []
drvr.destroy(self.context, instance, network_info, None, False)
mock_get_domain.assert_has_calls([mock.call(instance),
mock.call(instance)])
mock_domain_destroy.assert_called_once_with()
mock_teardown_container.assert_called_once_with(instance)
mock_cleanup.assert_called_once_with(self.context, instance,
network_info, None, False)
@mock.patch.object(libvirt_driver.LibvirtDriver, 'cleanup')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_teardown_container')
@mock.patch.object(host.Host, '_get_domain')
def test_destroy_lxc_calls_teardown_container_when_no_domain(self,
mock_get_domain, mock_teardown_container, mock_cleanup):
self.flags(virt_type='lxc', group='libvirt')
instance = objects.Instance(**self.test_instance)
inf_exception = exception.InstanceNotFound(instance_id=instance.uuid)
mock_get_domain.side_effect = inf_exception
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
network_info = []
drvr.destroy(self.context, instance, network_info, None, False)
mock_get_domain.assert_has_calls([mock.call(instance),
mock.call(instance)])
mock_teardown_container.assert_called_once_with(instance)
mock_cleanup.assert_called_once_with(self.context, instance,
network_info, None, False)
@mock.patch.object(libvirt_driver.LibvirtDriver, '_create_domain')
@mock.patch.object(host.Host, '_get_domain')
def test_reboot_different_ids(self, mock_get, mock_create):
class FakeLoopingCall(object):
def start(self, *a, **k):
return self
def wait(self):
return None
self.flags(wait_soft_reboot_seconds=1, group='libvirt')
info_tuple = ('fake', 'fake', 'fake', 'also_fake')
# Mock domain
mock_domain = mock.create_autospec(fakelibvirt.virDomain)
mock_domain.info.side_effect = [
(libvirt_guest.VIR_DOMAIN_RUNNING,) + info_tuple,
(libvirt_guest.VIR_DOMAIN_CRASHED,) + info_tuple]
mock_domain.ID.side_effect = ['some_fake_id', 'some_fake_id',
'some_other_fake_id',
'some_other_fake_id']
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
mock_get.return_value = mock_domain
self.stub_out('oslo_service.loopingcall.FixedIntervalLoopingCall',
lambda *a, **k: FakeLoopingCall())
self.stub_out('nova.pci.manager.get_instance_pci_devs', lambda *a: [])
drvr.reboot(None, instance, [], 'SOFT')
mock_domain.info.assert_has_calls([mock.call()] * 2)
self.assertEqual(2, mock_domain.info.call_count)
mock_domain.ID.assert_has_calls([mock.call()] * 4)
self.assertEqual(4, mock_domain.ID.call_count)
mock_domain.shutdown.assert_called_once_with()
mock_get.assert_has_calls([mock.call(instance)] * 2, any_order=True)
self.assertEqual(2, mock_get.call_count)
mock_create.assert_called_once_with(domain=mock_domain)
@mock.patch.object(pci_manager, 'get_instance_pci_devs')
@mock.patch.object(loopingcall, 'FixedIntervalLoopingCall')
@mock.patch.object(greenthread, 'sleep')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_hard_reboot')
@mock.patch.object(host.Host, '_get_domain')
def test_reboot_same_ids(self, mock_get_domain, mock_hard_reboot,
mock_sleep, mock_loopingcall,
mock_get_instance_pci_devs):
class FakeLoopingCall(object):
def start(self, *a, **k):
return self
def wait(self):
return None
self.flags(wait_soft_reboot_seconds=1, group='libvirt')
info_tuple = ('fake', 'fake', 'fake', 'also_fake')
self.reboot_hard_reboot_called = False
# Mock domain
mock_domain = mock.Mock(fakelibvirt.virDomain)
return_values = [(libvirt_guest.VIR_DOMAIN_RUNNING,) + info_tuple,
(libvirt_guest.VIR_DOMAIN_CRASHED,) + info_tuple]
mock_domain.info.side_effect = return_values
mock_domain.ID.return_value = 'some_fake_id'
mock_domain.shutdown.side_effect = mock.Mock()
def fake_hard_reboot(*args, **kwargs):
self.reboot_hard_reboot_called = True
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
mock_get_domain.return_value = mock_domain
mock_hard_reboot.side_effect = fake_hard_reboot
mock_loopingcall.return_value = FakeLoopingCall()
mock_get_instance_pci_devs.return_value = []
drvr.reboot(None, instance, [], 'SOFT')
self.assertTrue(self.reboot_hard_reboot_called)
@mock.patch.object(libvirt_driver.LibvirtDriver, '_hard_reboot')
@mock.patch.object(host.Host, '_get_domain')
def test_soft_reboot_libvirt_exception(self, mock_get_domain,
mock_hard_reboot):
# Tests that a hard reboot is performed when a soft reboot results
# in raising a libvirtError.
info_tuple = ('fake', 'fake', 'fake', 'also_fake')
# setup mocks
mock_virDomain = mock.Mock(fakelibvirt.virDomain)
mock_virDomain.info.return_value = (
(libvirt_guest.VIR_DOMAIN_RUNNING,) + info_tuple)
mock_virDomain.ID.return_value = 'some_fake_id'
mock_virDomain.shutdown.side_effect = fakelibvirt.libvirtError('Err')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
context = None
instance = objects.Instance(**self.test_instance)
network_info = []
mock_get_domain.return_value = mock_virDomain
drvr.reboot(context, instance, network_info, 'SOFT')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_hard_reboot')
@mock.patch.object(host.Host, '_get_domain')
def _test_resume_state_on_host_boot_with_state(self, state,
mock_get_domain,
mock_hard_reboot):
mock_virDomain = mock.Mock(fakelibvirt.virDomain)
mock_virDomain.info.return_value = ([state, None, None, None, None])
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_get_domain.return_value = mock_virDomain
instance = objects.Instance(**self.test_instance)
network_info = _fake_network_info(self, 1)
drvr.resume_state_on_host_boot(self.context, instance, network_info,
block_device_info=None)
ignored_states = (power_state.RUNNING,
power_state.SUSPENDED,
power_state.NOSTATE,
power_state.PAUSED)
self.assertEqual(mock_hard_reboot.called, state not in ignored_states)
def test_resume_state_on_host_boot_with_running_state(self):
self._test_resume_state_on_host_boot_with_state(power_state.RUNNING)
def test_resume_state_on_host_boot_with_suspended_state(self):
self._test_resume_state_on_host_boot_with_state(power_state.SUSPENDED)
def test_resume_state_on_host_boot_with_paused_state(self):
self._test_resume_state_on_host_boot_with_state(power_state.PAUSED)
def test_resume_state_on_host_boot_with_nostate(self):
self._test_resume_state_on_host_boot_with_state(power_state.NOSTATE)
def test_resume_state_on_host_boot_with_shutdown_state(self):
self._test_resume_state_on_host_boot_with_state(power_state.RUNNING)
def test_resume_state_on_host_boot_with_crashed_state(self):
self._test_resume_state_on_host_boot_with_state(power_state.CRASHED)
@mock.patch.object(libvirt_driver.LibvirtDriver, '_hard_reboot')
@mock.patch.object(host.Host, '_get_domain')
def test_resume_state_on_host_boot_with_instance_not_found_on_driver(
self, mock_get_domain, mock_hard_reboot):
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_get_domain.side_effect = exception.InstanceNotFound(
instance_id='fake')
drvr.resume_state_on_host_boot(self.context, instance, network_info=[],
block_device_info=None)
mock_hard_reboot.assert_called_once_with(self.context,
instance, [], None)
@mock.patch('nova.virt.libvirt.LibvirtDriver.get_info')
@mock.patch('nova.virt.libvirt.LibvirtDriver._create_domain_and_network')
@mock.patch('nova.virt.libvirt.LibvirtDriver._get_guest_xml')
@mock.patch('nova.virt.libvirt.LibvirtDriver.'
'_get_instance_disk_info_from_config')
@mock.patch('nova.virt.libvirt.LibvirtDriver.destroy')
@mock.patch('nova.virt.libvirt.LibvirtDriver.'
'_get_all_assigned_mediated_devices')
def test_hard_reboot(self, mock_get_mdev, mock_destroy, mock_get_disk_info,
mock_get_guest_xml, mock_create_domain_and_network,
mock_get_info):
self.context.auth_token = True # any non-None value will suffice
instance = objects.Instance(**self.test_instance)
network_info = _fake_network_info(self, 1)
block_device_info = None
dummyxml = ("<domain type='kvm'><name>instance-0000000a</name>"
"<devices>"
"<disk type='file'><driver name='qemu' type='raw'/>"
"<source file='/test/disk'/>"
"<target dev='vda' bus='virtio'/></disk>"
"<disk type='file'><driver name='qemu' type='qcow2'/>"
"<source file='/test/disk.local'/>"
"<target dev='vdb' bus='virtio'/></disk>"
"</devices></domain>")
mock_get_mdev.return_value = {uuids.mdev1: uuids.inst1}
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
return_values = [hardware.InstanceInfo(state=power_state.SHUTDOWN),
hardware.InstanceInfo(state=power_state.RUNNING)]
mock_get_info.side_effect = return_values
mock_get_guest_xml.return_value = dummyxml
mock_get_disk_info.return_value = \
fake_disk_info_byname(instance).values()
backend = self.useFixture(fake_imagebackend.ImageBackendFixture())
with mock.patch('os.path.exists', return_value=True):
drvr._hard_reboot(self.context, instance, network_info,
block_device_info)
disks = backend.disks
# NOTE(mdbooth): _create_images_and_backing() passes a full path in
# 'disk_name' when creating a disk. This is wrong, but happens to
# work due to handling by each individual backend. This will be
# fixed in a subsequent commit.
#
# We translate all the full paths into disk names here to make the
# test readable
disks = {os.path.basename(name): value
for name, value in disks.items()}
# We should have called cache() on the root and ephemeral disks
for name in ('disk', 'disk.local'):
self.assertTrue(disks[name].cache.called)
mock_get_mdev.assert_called_once_with(instance)
mock_destroy.assert_called_once_with(self.context, instance,
network_info, destroy_disks=False,
block_device_info=block_device_info)
mock_get_guest_xml.assert_called_once_with(self.context, instance,
network_info, mock.ANY, mock.ANY,
block_device_info=block_device_info, mdevs=[uuids.mdev1])
mock_create_domain_and_network.assert_called_once_with(self.context,
dummyxml, instance, network_info,
block_device_info=block_device_info, vifs_already_plugged=True)
@mock.patch('oslo_utils.fileutils.ensure_tree')
@mock.patch('oslo_service.loopingcall.FixedIntervalLoopingCall')
@mock.patch('nova.pci.manager.get_instance_pci_devs')
@mock.patch('nova.virt.libvirt.LibvirtDriver._prepare_pci_devices_for_use')
@mock.patch('nova.virt.libvirt.LibvirtDriver._create_domain_and_network')
@mock.patch('nova.virt.libvirt.LibvirtDriver._create_images_and_backing')
@mock.patch('nova.virt.libvirt.LibvirtDriver.'
'_get_instance_disk_info_from_config')
@mock.patch('nova.virt.libvirt.utils.write_to_file')
@mock.patch('nova.virt.libvirt.utils.get_instance_path')
@mock.patch('nova.virt.libvirt.LibvirtDriver._get_guest_config')
@mock.patch('nova.virt.libvirt.blockinfo.get_disk_info')
@mock.patch('nova.virt.libvirt.LibvirtDriver._destroy')
@mock.patch('nova.virt.libvirt.LibvirtDriver.'
'_get_all_assigned_mediated_devices')
def test_hard_reboot_does_not_call_glance_show(self,
mock_get_mdev, mock_destroy, mock_get_disk_info,
mock_get_guest_config, mock_get_instance_path, mock_write_to_file,
mock_get_instance_disk_info, mock_create_images_and_backing,
mock_create_domand_and_network, mock_prepare_pci_devices_for_use,
mock_get_instance_pci_devs, mock_looping_call, mock_ensure_tree):
"""For a hard reboot, we shouldn't need an additional call to glance
to get the image metadata.
This is important for automatically spinning up instances on a
host-reboot, since we won't have a user request context that'll allow
the Glance request to go through. We have to rely on the cached image
metadata, instead.
https://bugs.launchpad.net/nova/+bug/1339386
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
mock_get_mdev.return_value = {}
network_info = mock.MagicMock()
block_device_info = mock.MagicMock()
mock_get_disk_info.return_value = {}
mock_get_guest_config.return_value = mock.MagicMock()
mock_get_instance_path.return_value = '/foo'
mock_looping_call.return_value = mock.MagicMock()
drvr._image_api = mock.MagicMock()
drvr._hard_reboot(self.context, instance, network_info,
block_device_info)
self.assertFalse(drvr._image_api.get.called)
mock_ensure_tree.assert_called_once_with('/foo')
def test_suspend(self):
guest = libvirt_guest.Guest(FakeVirtDomain(id=1))
dom = guest._domain
instance = objects.Instance(**self.test_instance)
instance.ephemeral_key_uuid = None
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
@mock.patch.object(dmcrypt, 'delete_volume')
@mock.patch.object(conn, '_get_instance_disk_info_from_config',
return_value=[])
@mock.patch.object(conn, '_detach_mediated_devices')
@mock.patch.object(conn, '_detach_direct_passthrough_ports')
@mock.patch.object(conn, '_detach_pci_devices')
@mock.patch.object(pci_manager, 'get_instance_pci_devs',
return_value='pci devs')
@mock.patch.object(conn._host, 'get_guest', return_value=guest)
def suspend(mock_get_guest, mock_get_instance_pci_devs,
mock_detach_pci_devices,
mock_detach_direct_passthrough_ports,
mock_detach_mediated_devices,
mock_get_instance_disk_info,
mock_delete_volume):
mock_managedSave = mock.Mock()
dom.managedSave = mock_managedSave
conn.suspend(self.context, instance)
mock_managedSave.assert_called_once_with(0)
self.assertFalse(mock_get_instance_disk_info.called)
mock_delete_volume.assert_has_calls([mock.call(disk['path'])
for disk in mock_get_instance_disk_info.return_value], False)
suspend()
@mock.patch.object(time, 'sleep')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_create_domain')
@mock.patch.object(host.Host, '_get_domain')
def _test_clean_shutdown(self, mock_get_domain, mock_create_domain,
mock_sleep, seconds_to_shutdown,
timeout, retry_interval,
shutdown_attempts, succeeds):
info_tuple = ('fake', 'fake', 'fake', 'also_fake')
shutdown_count = []
# Mock domain
mock_domain = mock.Mock(fakelibvirt.virDomain)
return_infos = [(libvirt_guest.VIR_DOMAIN_RUNNING,) + info_tuple]
return_shutdowns = [shutdown_count.append("shutdown")]
retry_countdown = retry_interval
for x in range(min(seconds_to_shutdown, timeout)):
return_infos.append(
(libvirt_guest.VIR_DOMAIN_RUNNING,) + info_tuple)
if retry_countdown == 0:
return_shutdowns.append(shutdown_count.append("shutdown"))
retry_countdown = retry_interval
else:
retry_countdown -= 1
if seconds_to_shutdown < timeout:
return_infos.append(
(libvirt_guest.VIR_DOMAIN_SHUTDOWN,) + info_tuple)
mock_domain.info.side_effect = return_infos
mock_domain.shutdown.side_effect = return_shutdowns
def fake_create_domain(**kwargs):
self.reboot_create_called = True
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
mock_get_domain.return_value = mock_domain
mock_create_domain.side_effect = fake_create_domain
result = drvr._clean_shutdown(instance, timeout, retry_interval)
self.assertEqual(succeeds, result)
self.assertEqual(shutdown_attempts, len(shutdown_count))
def test_clean_shutdown_first_time(self):
self._test_clean_shutdown(seconds_to_shutdown=2,
timeout=5,
retry_interval=3,
shutdown_attempts=1,
succeeds=True)
def test_clean_shutdown_with_retry(self):
self._test_clean_shutdown(seconds_to_shutdown=4,
timeout=5,
retry_interval=3,
shutdown_attempts=2,
succeeds=True)
def test_clean_shutdown_failure(self):
self._test_clean_shutdown(seconds_to_shutdown=6,
timeout=5,
retry_interval=3,
shutdown_attempts=2,
succeeds=False)
def test_clean_shutdown_no_wait(self):
self._test_clean_shutdown(seconds_to_shutdown=6,
timeout=0,
retry_interval=3,
shutdown_attempts=1,
succeeds=False)
@mock.patch.object(FakeVirtDomain, 'attachDeviceFlags')
@mock.patch.object(FakeVirtDomain, 'ID', return_value=1)
@mock.patch.object(utils, 'get_image_from_system_metadata',
return_value=None)
def test_attach_direct_passthrough_ports(self,
mock_get_image_metadata, mock_ID, mock_attachDevice):
instance = objects.Instance(**self.test_instance)
network_info = _fake_network_info(self, 1)
network_info[0]['vnic_type'] = network_model.VNIC_TYPE_DIRECT
guest = libvirt_guest.Guest(FakeVirtDomain())
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._attach_direct_passthrough_ports(
self.context, instance, guest, network_info)
mock_get_image_metadata.assert_called_once_with(
instance.system_metadata)
self.assertTrue(mock_attachDevice.called)
@mock.patch.object(FakeVirtDomain, 'attachDeviceFlags')
@mock.patch.object(FakeVirtDomain, 'ID', return_value=1)
@mock.patch.object(utils, 'get_image_from_system_metadata',
return_value=None)
def test_attach_direct_physical_passthrough_ports(self,
mock_get_image_metadata, mock_ID, mock_attachDevice):
instance = objects.Instance(**self.test_instance)
network_info = _fake_network_info(self, 1)
network_info[0]['vnic_type'] = network_model.VNIC_TYPE_DIRECT_PHYSICAL
guest = libvirt_guest.Guest(FakeVirtDomain())
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._attach_direct_passthrough_ports(
self.context, instance, guest, network_info)
mock_get_image_metadata.assert_called_once_with(
instance.system_metadata)
self.assertTrue(mock_attachDevice.called)
@mock.patch.object(FakeVirtDomain, 'attachDeviceFlags')
@mock.patch.object(FakeVirtDomain, 'ID', return_value=1)
@mock.patch.object(utils, 'get_image_from_system_metadata',
return_value=None)
def test_attach_direct_passthrough_ports_with_info_cache(self,
mock_get_image_metadata, mock_ID, mock_attachDevice):
instance = objects.Instance(**self.test_instance)
network_info = _fake_network_info(self, 1)
network_info[0]['vnic_type'] = network_model.VNIC_TYPE_DIRECT
instance.info_cache = objects.InstanceInfoCache(
network_info=network_info)
guest = libvirt_guest.Guest(FakeVirtDomain())
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._attach_direct_passthrough_ports(
self.context, instance, guest, None)
mock_get_image_metadata.assert_called_once_with(
instance.system_metadata)
self.assertTrue(mock_attachDevice.called)
@mock.patch.object(host.Host,
'has_min_version', return_value=True)
def _test_detach_direct_passthrough_ports(self,
mock_has_min_version, vif_type):
instance = objects.Instance(**self.test_instance)
expeted_pci_slot = "0000:00:00.0"
network_info = _fake_network_info(self, 1)
network_info[0]['vnic_type'] = network_model.VNIC_TYPE_DIRECT
# some more adjustments for the fake network_info so that
# the correct get_config function will be executed (vif's
# get_config_hw_veb - which is according to the real SRIOV vif)
# and most importantly the pci_slot which is translated to
# cfg.source_dev, then to PciDevice.address and sent to
# _detach_pci_devices
network_info[0]['profile'] = dict(pci_slot=expeted_pci_slot)
network_info[0]['type'] = vif_type
network_info[0]['details'] = dict(vlan="2145")
instance.info_cache = objects.InstanceInfoCache(
network_info=network_info)
# fill the pci_devices of the instance so that
# pci_manager.get_instance_pci_devs will not return an empty list
# which will eventually fail the assertion for detachDeviceFlags
expected_pci_device_obj = (
objects.PciDevice(address=expeted_pci_slot, request_id=None))
instance.pci_devices = objects.PciDeviceList()
instance.pci_devices.objects = [expected_pci_device_obj]
domain = FakeVirtDomain()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
guest = libvirt_guest.Guest(domain)
with mock.patch.object(drvr, '_detach_pci_devices') as mock_detach_pci:
drvr._detach_direct_passthrough_ports(
self.context, instance, guest)
mock_detach_pci.assert_called_once_with(
guest, [expected_pci_device_obj])
def test_detach_direct_passthrough_ports_interface_interface_hostdev(self):
# Note: test detach_direct_passthrough_ports method for vif with config
# LibvirtConfigGuestInterface
self._test_detach_direct_passthrough_ports(vif_type="hw_veb")
def test_detach_direct_passthrough_ports_interface_pci_hostdev(self):
# Note: test detach_direct_passthrough_ports method for vif with config
# LibvirtConfigGuestHostdevPCI
self._test_detach_direct_passthrough_ports(vif_type="ib_hostdev")
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
@mock.patch.object(FakeVirtDomain, 'detachDeviceFlags')
def test_detach_duplicate_mac_direct_passthrough_ports(
self, mock_detachDeviceFlags, mock_has_min_version):
instance = objects.Instance(**self.test_instance)
network_info = _fake_network_info(self, 2)
for network_info_inst in network_info:
network_info_inst['vnic_type'] = network_model.VNIC_TYPE_DIRECT
network_info_inst['type'] = "hw_veb"
network_info_inst['details'] = dict(vlan="2145")
network_info_inst['address'] = "fa:16:3e:96:2a:48"
network_info[0]['profile'] = dict(pci_slot="0000:00:00.0")
network_info[1]['profile'] = dict(pci_slot="0000:00:00.1")
instance.info_cache = objects.InstanceInfoCache(
network_info=network_info)
# fill the pci_devices of the instance so that
# pci_manager.get_instance_pci_devs will not return an empty list
# which will eventually fail the assertion for detachDeviceFlags
instance.pci_devices = objects.PciDeviceList()
instance.pci_devices.objects = [
objects.PciDevice(address='0000:00:00.0', request_id=None),
objects.PciDevice(address='0000:00:00.1', request_id=None)
]
domain = FakeVirtDomain()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
guest = libvirt_guest.Guest(domain)
drvr._detach_direct_passthrough_ports(self.context, instance, guest)
expected_xml = [
('<hostdev mode="subsystem" type="pci" managed="yes">\n'
' <source>\n'
' <address bus="0x00" domain="0x0000" \
function="0x0" slot="0x00"/>\n'
' </source>\n'
'</hostdev>\n'),
('<hostdev mode="subsystem" type="pci" managed="yes">\n'
' <source>\n'
' <address bus="0x00" domain="0x0000" \
function="0x1" slot="0x00"/>\n'
' </source>\n'
'</hostdev>\n')
]
mock_detachDeviceFlags.has_calls([
mock.call(expected_xml[0], flags=1),
mock.call(expected_xml[1], flags=1)
])
def test_resume(self):
dummyxml = ("<domain type='kvm'><name>instance-0000000a</name>"
"<devices>"
"<disk type='file'><driver name='qemu' type='raw'/>"
"<source file='/test/disk'/>"
"<target dev='vda' bus='virtio'/></disk>"
"<disk type='file'><driver name='qemu' type='qcow2'/>"
"<source file='/test/disk.local'/>"
"<target dev='vdb' bus='virtio'/></disk>"
"</devices></domain>")
instance = objects.Instance(**self.test_instance)
network_info = _fake_network_info(self, 1)
block_device_info = None
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
guest = libvirt_guest.Guest('fake_dom')
with test.nested(
mock.patch.object(drvr, '_get_existing_domain_xml',
return_value=dummyxml),
mock.patch.object(drvr, '_create_domain_and_network',
return_value=guest),
mock.patch.object(drvr, '_attach_pci_devices'),
mock.patch.object(pci_manager, 'get_instance_pci_devs',
return_value='fake_pci_devs'),
mock.patch.object(utils, 'get_image_from_system_metadata'),
mock.patch.object(guest, 'sync_guest_time'),
mock.patch.object(drvr, '_wait_for_running',
side_effect=loopingcall.LoopingCallDone()),
) as (_get_existing_domain_xml, _create_domain_and_network,
_attach_pci_devices, get_instance_pci_devs, get_image_metadata,
mock_sync_time, mock_wait):
get_image_metadata.return_value = {'bar': 234}
drvr.resume(self.context, instance, network_info,
block_device_info)
_get_existing_domain_xml.assert_has_calls([mock.call(instance,
network_info, block_device_info)])
_create_domain_and_network.assert_has_calls([mock.call(
self.context, dummyxml,
instance, network_info,
block_device_info=block_device_info,
vifs_already_plugged=True)])
self.assertTrue(mock_sync_time.called)
_attach_pci_devices.assert_has_calls([mock.call(guest,
'fake_pci_devs')])
@mock.patch.object(host.Host, '_get_domain')
@mock.patch.object(libvirt_driver.LibvirtDriver, 'get_info')
@mock.patch.object(libvirt_driver.LibvirtDriver, 'delete_instance_files')
@mock.patch.object(objects.Instance, 'save')
def test_destroy_undefines(self, mock_save, mock_delete_instance_files,
mock_get_info, mock_get_domain):
dom_mock = mock.MagicMock()
dom_mock.undefineFlags.return_value = 1
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_get_domain.return_value = dom_mock
mock_get_info.return_value = hardware.InstanceInfo(
state=power_state.SHUTDOWN, internal_id=-1)
mock_delete_instance_files.return_value = None
instance = objects.Instance(self.context, **self.test_instance)
drvr.destroy(self.context, instance, [])
mock_save.assert_called_once_with()
@mock.patch.object(rbd_utils.RBDDriver, '_destroy_volume')
@mock.patch.object(rbd_utils.RBDDriver, '_disconnect_from_rados')
@mock.patch.object(rbd_utils.RBDDriver, '_connect_to_rados')
@mock.patch.object(rbd_utils, 'rbd')
@mock.patch.object(rbd_utils, 'rados')
def test_cleanup_rbd(self, mock_rados, mock_rbd, mock_connect,
mock_disconnect, mock_destroy_volume):
mock_connect.return_value = mock.MagicMock(), mock.MagicMock()
instance = objects.Instance(**self.test_instance)
all_volumes = [uuids.other_instance + '_disk',
uuids.other_instance + '_disk.swap',
instance.uuid + '_disk',
instance.uuid + '_disk.swap']
mock_rbd.RBD.return_value.list.return_value = all_volumes
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr._cleanup_rbd(instance)
calls = [mock.call(mock.ANY, instance.uuid + '_disk'),
mock.call(mock.ANY, instance.uuid + '_disk.swap')]
mock_destroy_volume.assert_has_calls(calls)
self.assertEqual(2, mock_destroy_volume.call_count)
@mock.patch.object(rbd_utils.RBDDriver, '_destroy_volume')
@mock.patch.object(rbd_utils.RBDDriver, '_disconnect_from_rados')
@mock.patch.object(rbd_utils.RBDDriver, '_connect_to_rados')
@mock.patch.object(rbd_utils, 'rbd')
@mock.patch.object(rbd_utils, 'rados')
def test_cleanup_rbd_resize_reverting(self, mock_rados, mock_rbd,
mock_connect, mock_disconnect,
mock_destroy_volume):
mock_connect.return_value = mock.MagicMock(), mock.MagicMock()
instance = objects.Instance(**self.test_instance)
instance.task_state = task_states.RESIZE_REVERTING
all_volumes = [uuids.other_instance + '_disk',
uuids.other_instance + '_disk.local',
instance.uuid + '_disk',
instance.uuid + '_disk.local']
mock_rbd.RBD.return_value.list.return_value = all_volumes
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr._cleanup_rbd(instance)
mock_destroy_volume.assert_called_once_with(
mock.ANY, instance.uuid + '_disk.local')
@mock.patch.object(objects.Instance, 'save')
def test_destroy_undefines_no_undefine_flags(self, mock_save):
mock_domain = mock.Mock(fakelibvirt.virDomain)
mock_domain.undefineFlags.side_effect = fakelibvirt.libvirtError('Err')
mock_domain.ID.return_value = 123
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._host._get_domain = mock.Mock(return_value=mock_domain)
drvr._has_uefi_support = mock.Mock(return_value=False)
drvr.delete_instance_files = mock.Mock(return_value=None)
drvr.get_info = mock.Mock(return_value=
hardware.InstanceInfo(state=power_state.SHUTDOWN, internal_id=-1)
)
instance = objects.Instance(self.context, **self.test_instance)
drvr.destroy(self.context, instance, [])
self.assertEqual(2, mock_domain.ID.call_count)
mock_domain.destroy.assert_called_once_with()
mock_domain.undefineFlags.assert_called_once_with(1)
mock_domain.undefine.assert_called_once_with()
mock_save.assert_called_once_with()
@mock.patch.object(objects.Instance, 'save')
def test_destroy_undefines_no_attribute_with_managed_save(self, mock_save):
mock_domain = mock.Mock(fakelibvirt.virDomain)
mock_domain.undefineFlags.side_effect = AttributeError()
mock_domain.ID.return_value = 123
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._host._get_domain = mock.Mock(return_value=mock_domain)
drvr._has_uefi_support = mock.Mock(return_value=False)
drvr.delete_instance_files = mock.Mock(return_value=None)
drvr.get_info = mock.Mock(return_value=
hardware.InstanceInfo(state=power_state.SHUTDOWN, internal_id=-1)
)
instance = objects.Instance(self.context, **self.test_instance)
drvr.destroy(self.context, instance, [])
self.assertEqual(1, mock_domain.ID.call_count)
mock_domain.destroy.assert_called_once_with()
mock_domain.undefineFlags.assert_called_once_with(1)
mock_domain.hasManagedSaveImage.assert_has_calls([mock.call(0)])
mock_domain.managedSaveRemove.assert_called_once_with(0)
mock_domain.undefine.assert_called_once_with()
mock_save.assert_called_once_with()
@mock.patch.object(objects.Instance, 'save')
def test_destroy_undefines_no_attribute_no_managed_save(self, mock_save):
mock_domain = mock.Mock(fakelibvirt.virDomain)
mock_domain.undefineFlags.side_effect = AttributeError()
mock_domain.hasManagedSaveImage.side_effect = AttributeError()
mock_domain.ID.return_value = 123
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._host._get_domain = mock.Mock(return_value=mock_domain)
drvr._has_uefi_support = mock.Mock(return_value=False)
drvr.delete_instance_files = mock.Mock(return_value=None)
drvr.get_info = mock.Mock(return_value=
hardware.InstanceInfo(state=power_state.SHUTDOWN, internal_id=-1)
)
instance = objects.Instance(self.context, **self.test_instance)
drvr.destroy(self.context, instance, [])
self.assertEqual(1, mock_domain.ID.call_count)
mock_domain.destroy.assert_called_once_with()
mock_domain.undefineFlags.assert_called_once_with(1)
mock_domain.hasManagedSaveImage.assert_has_calls([mock.call(0)])
mock_domain.undefine.assert_called_once_with()
mock_save.assert_called_once_with()
@mock.patch.object(objects.Instance, 'save')
def test_destroy_removes_nvram(self, mock_save):
mock_domain = mock.Mock(fakelibvirt.virDomain)
mock_domain.ID.return_value = 123
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr._host._get_domain = mock.Mock(return_value=mock_domain)
drvr._has_uefi_support = mock.Mock(return_value=True)
drvr.delete_instance_files = mock.Mock(return_value=None)
drvr.get_info = mock.Mock(return_value=hardware.InstanceInfo(
state=power_state.SHUTDOWN, internal_id=-1))
instance = objects.Instance(self.context, **self.test_instance)
drvr.destroy(self.context, instance, [])
self.assertEqual(1, mock_domain.ID.call_count)
mock_domain.destroy.assert_called_once_with()
# undefineFlags should now be called with 5 as uefi us supported
mock_domain.undefineFlags.assert_called_once_with(
fakelibvirt.VIR_DOMAIN_UNDEFINE_MANAGED_SAVE |
fakelibvirt.VIR_DOMAIN_UNDEFINE_NVRAM
)
mock_domain.undefine.assert_not_called()
mock_save.assert_called_once_with()
def test_destroy_timed_out(self):
mock_virdomain = mock.Mock(autospec=fakelibvirt.virDomain)
mock_virdomain.destroy.side_effect = fakelibvirt.libvirtError(
'timed out')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.stub_out('nova.virt.libvirt.host.Host._get_domain',
lambda self, instance: mock_virdomain)
self.stub_out('nova.tests.unit.virt.libvirt.fakelibvirt.libvirtError.'
'get_error_code',
lambda self: fakelibvirt.VIR_ERR_OPERATION_TIMEOUT)
instance = objects.Instance(**self.test_instance)
self.assertRaises(exception.InstancePowerOffFailure,
drvr.destroy, self.context, instance, [])
mock_virdomain.ID.assert_called_once_with()
mock_virdomain.destroy.assert_called_once_with()
def test_private_destroy_not_found(self):
ex = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
"No such domain",
error_code=fakelibvirt.VIR_ERR_NO_DOMAIN)
mock_virdomain = mock.Mock(autospec=fakelibvirt.virDomain)
mock_virdomain.destroy.side_effect = ex
mock_virdomain.info.side_effect = ex
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.stub_out('nova.virt.libvirt.host.Host._get_domain',
lambda self, instance: mock_virdomain)
instance = objects.Instance(**self.test_instance)
# NOTE(vish): verifies destroy doesn't raise if the instance disappears
drvr._destroy(instance)
mock_virdomain.ID.assert_called_once_with()
mock_virdomain.destroy.assert_called_once_with()
mock_virdomain.info.assert_called_once_with()
mock_virdomain.UUIDString.assert_called_once_with()
def test_private_destroy_lxc_processes_refused_to_die(self):
self.flags(virt_type='lxc', group='libvirt')
ex = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError, "",
error_message="internal error: Some processes refused to die",
error_code=fakelibvirt.VIR_ERR_INTERNAL_ERROR)
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with mock.patch.object(conn._host, '_get_domain') as mock_get_domain, \
mock.patch.object(conn, 'get_info') as mock_get_info:
mock_domain = mock.MagicMock()
mock_domain.ID.return_value = 1
mock_get_domain.return_value = mock_domain
mock_domain.destroy.side_effect = ex
mock_info = mock.MagicMock()
mock_info.internal_id = 1
mock_info.state = power_state.SHUTDOWN
mock_get_info.return_value = mock_info
instance = objects.Instance(**self.test_instance)
conn._destroy(instance)
def test_private_destroy_processes_refused_to_die_still_raises(self):
ex = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError, "",
error_message="internal error: Some processes refused to die",
error_code=fakelibvirt.VIR_ERR_INTERNAL_ERROR)
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with mock.patch.object(conn._host, '_get_domain') as mock_get_domain:
mock_domain = mock.MagicMock()
mock_domain.ID.return_value = 1
mock_get_domain.return_value = mock_domain
mock_domain.destroy.side_effect = ex
instance = objects.Instance(**self.test_instance)
self.assertRaises(fakelibvirt.libvirtError, conn._destroy,
instance)
def test_private_destroy_ebusy_timeout(self):
# Tests that _destroy will retry 3 times to destroy the guest when an
# EBUSY is raised, but eventually times out and raises the libvirtError
ex = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
("Failed to terminate process 26425 with SIGKILL: "
"Device or resource busy"),
error_code=fakelibvirt.VIR_ERR_SYSTEM_ERROR,
int1=errno.EBUSY)
mock_guest = mock.Mock(libvirt_guest.Guest, id=1)
mock_guest.poweroff = mock.Mock(side_effect=ex)
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with mock.patch.object(drvr._host, 'get_guest',
return_value=mock_guest):
self.assertRaises(fakelibvirt.libvirtError, drvr._destroy,
instance)
self.assertEqual(3, mock_guest.poweroff.call_count)
def test_private_destroy_ebusy_multiple_attempt_ok(self):
# Tests that the _destroy attempt loop is broken when EBUSY is no
# longer raised.
ex = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
("Failed to terminate process 26425 with SIGKILL: "
"Device or resource busy"),
error_code=fakelibvirt.VIR_ERR_SYSTEM_ERROR,
int1=errno.EBUSY)
mock_guest = mock.Mock(libvirt_guest.Guest, id=1)
mock_guest.poweroff = mock.Mock(side_effect=[ex, None])
inst_info = hardware.InstanceInfo(power_state.SHUTDOWN, internal_id=1)
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with mock.patch.object(drvr._host, 'get_guest',
return_value=mock_guest):
with mock.patch.object(drvr, 'get_info', return_value=inst_info):
drvr._destroy(instance)
self.assertEqual(2, mock_guest.poweroff.call_count)
@mock.patch.object(fakelibvirt.libvirtError, 'get_error_code')
@mock.patch.object(host.Host, '_get_domain',
side_effect=exception.InstanceNotFound(
instance_id=uuids.instance))
def test_undefine_domain_with_not_found_instance(self, mock_get_domain,
mock_get_error):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
# NOTE(wenjianhn): verifies undefine doesn't raise if the
# instance disappears
drvr._undefine_domain(instance)
mock_get_domain.assert_called_once_with(instance)
mock_get_error.assert_not_called()
@mock.patch.object(libvirt_driver.LibvirtDriver, "_has_uefi_support")
@mock.patch.object(host.Host, "get_guest")
def test_undefine_domain_handles_libvirt_errors(self, mock_get,
mock_has_uefi):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
fake_guest = mock.Mock()
mock_get.return_value = fake_guest
unexpected = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError, "Random", error_code=1)
fake_guest.delete_configuration.side_effect = unexpected
# ensure raise unexpected error code
self.assertRaises(type(unexpected), drvr._undefine_domain, instance)
ignored = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError, "No such domain",
error_code=fakelibvirt.VIR_ERR_NO_DOMAIN)
fake_guest.delete_configuration.side_effect = ignored
# ensure no raise for no such domain
drvr._undefine_domain(instance)
@mock.patch.object(host.Host, "list_instance_domains")
@mock.patch.object(objects.BlockDeviceMappingList, "bdms_by_instance_uuid")
@mock.patch.object(objects.InstanceList, "get_by_filters")
def test_disk_over_committed_size_total(self, mock_get, mock_bdms,
mock_list):
# Ensure destroy calls managedSaveRemove for saved instance.
class DiagFakeDomain(object):
def __init__(self, name):
self._name = name
self._uuid = uuids.fake
def ID(self):
return 1
def name(self):
return self._name
def UUIDString(self):
return self._uuid
def XMLDesc(self, flags):
return "<domain><name>%s</name></domain>" % self._name
instance_domains = [
DiagFakeDomain("instance0000001"),
DiagFakeDomain("instance0000002")]
mock_list.return_value = instance_domains
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
fake_disks = {'instance0000001':
[{'type': 'qcow2', 'path': '/somepath/disk1',
'virt_disk_size': '10737418240',
'backing_file': '/somepath/disk1',
'disk_size': '83886080',
'over_committed_disk_size': '10653532160'}],
'instance0000002':
[{'type': 'raw', 'path': '/somepath/disk2',
'virt_disk_size': '0',
'backing_file': '/somepath/disk2',
'disk_size': '10737418240',
'over_committed_disk_size': '0'}]}
def get_info(cfg, block_device_info):
return fake_disks.get(cfg.name)
instance_uuids = [dom.UUIDString() for dom in instance_domains]
instances = [objects.Instance(
uuid=instance_uuids[0],
root_device_name='/dev/vda'),
objects.Instance(
uuid=instance_uuids[1],
root_device_name='/dev/vdb')
]
mock_get.return_value = instances
with mock.patch.object(
drvr, "_get_instance_disk_info_from_config") as mock_info:
mock_info.side_effect = get_info
result = drvr._get_disk_over_committed_size_total()
self.assertEqual(result, 10653532160)
mock_list.assert_called_once_with(only_running=False)
self.assertEqual(2, mock_info.call_count)
filters = {'uuid': instance_uuids}
mock_get.assert_called_once_with(mock.ANY, filters, use_slave=True)
mock_bdms.assert_called_with(mock.ANY, instance_uuids)
@mock.patch.object(host.Host, "list_instance_domains")
@mock.patch.object(objects.BlockDeviceMappingList, "bdms_by_instance_uuid")
@mock.patch.object(objects.InstanceList, "get_by_filters")
def test_disk_over_committed_size_total_eperm(self, mock_get, mock_bdms,
mock_list):
# Ensure destroy calls managedSaveRemove for saved instance.
class DiagFakeDomain(object):
def __init__(self, name):
self._name = name
self._uuid = uuidutils.generate_uuid()
def ID(self):
return 1
def name(self):
return self._name
def UUIDString(self):
return self._uuid
def XMLDesc(self, flags):
return "<domain><name>%s</name></domain>" % self._name
instance_domains = [
DiagFakeDomain("instance0000001"),
DiagFakeDomain("instance0000002"),
DiagFakeDomain("instance0000003"),
DiagFakeDomain("instance0000004"),
DiagFakeDomain("instance0000005")]
mock_list.return_value = instance_domains
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
fake_disks = {'instance0000001':
[{'type': 'qcow2', 'path': '/somepath/disk1',
'virt_disk_size': '10737418240',
'backing_file': '/somepath/disk1',
'disk_size': '83886080',
'over_committed_disk_size': '10653532160'}],
'instance0000002':
[{'type': 'raw', 'path': '/somepath/disk2',
'virt_disk_size': '0',
'backing_file': '/somepath/disk2',
'disk_size': '10737418240',
'over_committed_disk_size': '21474836480'}],
'instance0000003':
[{'type': 'raw', 'path': '/somepath/disk3',
'virt_disk_size': '0',
'backing_file': '/somepath/disk3',
'disk_size': '21474836480',
'over_committed_disk_size': '32212254720'}],
'instance0000004':
[{'type': 'raw', 'path': '/somepath/disk4',
'virt_disk_size': '0',
'backing_file': '/somepath/disk4',
'disk_size': '32212254720',
'over_committed_disk_size': '42949672960'}]}
def side_effect(cfg, block_device_info):
if cfg.name == 'instance0000001':
self.assertEqual('/dev/vda',
block_device_info['root_device_name'])
raise OSError(errno.ENOENT, 'No such file or directory')
if cfg.name == 'instance0000002':
self.assertEqual('/dev/vdb',
block_device_info['root_device_name'])
raise OSError(errno.ESTALE, 'Stale NFS file handle')
if cfg.name == 'instance0000003':
self.assertEqual('/dev/vdc',
block_device_info['root_device_name'])
raise OSError(errno.EACCES, 'Permission denied')
if cfg.name == 'instance0000004':
self.assertEqual('/dev/vdd',
block_device_info['root_device_name'])
return fake_disks.get(cfg.name)
get_disk_info = mock.Mock()
get_disk_info.side_effect = side_effect
drvr._get_instance_disk_info_from_config = get_disk_info
instance_uuids = [dom.UUIDString() for dom in instance_domains]
instances = [objects.Instance(
uuid=instance_uuids[0],
root_device_name='/dev/vda'),
objects.Instance(
uuid=instance_uuids[1],
root_device_name='/dev/vdb'),
objects.Instance(
uuid=instance_uuids[2],
root_device_name='/dev/vdc'),
objects.Instance(
uuid=instance_uuids[3],
root_device_name='/dev/vdd'),
]
mock_get.return_value = instances
# NOTE(danms): We need to have found bdms for our instances,
# but we don't really need them to be complete as we just need
# to make it to our side_effect above. Exclude the last domain
# to simulate the case where we have an instance with no BDMs.
mock_bdms.return_value = {uuid: [] for uuid in instance_uuids
if uuid != instance_domains[-1].UUIDString()}
result = drvr._get_disk_over_committed_size_total()
self.assertEqual(42949672960, result)
mock_list.assert_called_once_with(only_running=False)
self.assertEqual(5, get_disk_info.call_count)
filters = {'uuid': instance_uuids}
mock_get.assert_called_once_with(mock.ANY, filters, use_slave=True)
mock_bdms.assert_called_with(mock.ANY, instance_uuids)
@mock.patch.object(host.Host, "list_instance_domains")
@mock.patch.object(libvirt_driver.LibvirtDriver,
"_get_instance_disk_info_from_config",
side_effect=exception.VolumeBDMPathNotFound(path='bar'))
@mock.patch.object(objects.BlockDeviceMappingList, "bdms_by_instance_uuid")
@mock.patch.object(objects.InstanceList, "get_by_filters")
def test_disk_over_committed_size_total_bdm_not_found(self,
mock_get,
mock_bdms,
mock_get_disk_info,
mock_list_domains):
mock_dom = mock.Mock()
mock_dom.XMLDesc.return_value = "<domain/>"
mock_list_domains.return_value = [mock_dom]
# Tests that we handle VolumeBDMPathNotFound gracefully.
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertEqual(0, drvr._get_disk_over_committed_size_total())
@mock.patch('nova.virt.libvirt.host.Host.list_instance_domains')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_get_instance_disk_info_from_config',
side_effect=exception.DiskNotFound(location='/opt/stack/foo'))
@mock.patch('nova.objects.BlockDeviceMappingList.bdms_by_instance_uuid',
return_value=objects.BlockDeviceMappingList())
@mock.patch('nova.objects.InstanceList.get_by_filters',
return_value=objects.InstanceList(objects=[
objects.Instance(uuid=uuids.instance,
vm_state=vm_states.ACTIVE,
task_state=task_states.DELETING)]))
def test_disk_over_committed_size_total_disk_not_found_ignore_task_state(
self, mock_get, mock_bdms, mock_get_disk_info, mock_list_domains):
"""Tests that we handle DiskNotFound gracefully for an instance that
is undergoing a task_state transition.
"""
mock_dom = mock.Mock()
mock_dom.XMLDesc.return_value = "<domain/>"
mock_dom.UUIDString.return_value = uuids.instance
mock_list_domains.return_value = [mock_dom]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertEqual(0, drvr._get_disk_over_committed_size_total())
@mock.patch('nova.virt.libvirt.host.Host.list_instance_domains')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_get_instance_disk_info_from_config',
side_effect=exception.DiskNotFound(location='/opt/stack/foo'))
@mock.patch('nova.objects.BlockDeviceMappingList.bdms_by_instance_uuid',
return_value=objects.BlockDeviceMappingList())
@mock.patch('nova.objects.InstanceList.get_by_filters',
return_value=objects.InstanceList(objects=[
objects.Instance(uuid=uuids.instance,
task_state=None,
vm_state=vm_states.RESIZED)]))
def test_disk_over_committed_size_total_disk_not_found_ignore_vmstate(
self, mock_get, mock_bdms, mock_get_disk_info, mock_list_domains):
"""Tests that we handle DiskNotFound gracefully for an instance that
is resized but resize is not confirmed yet.
"""
mock_dom = mock.Mock()
mock_dom.XMLDesc.return_value = "<domain/>"
mock_dom.UUIDString.return_value = uuids.instance
mock_list_domains.return_value = [mock_dom]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertEqual(0, drvr._get_disk_over_committed_size_total())
@mock.patch('nova.virt.libvirt.host.Host.list_instance_domains')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_get_instance_disk_info_from_config',
side_effect=exception.DiskNotFound(location='/opt/stack/foo'))
@mock.patch('nova.objects.BlockDeviceMappingList.bdms_by_instance_uuid',
return_value=objects.BlockDeviceMappingList())
@mock.patch('nova.objects.InstanceList.get_by_filters',
return_value=objects.InstanceList(objects=[
objects.Instance(uuid=uuids.instance,
vm_state=vm_states.ACTIVE,
task_state=None)]))
def test_disk_over_committed_size_total_disk_not_found_reraise(
self, mock_get, mock_bdms, mock_get_disk_info, mock_list_domains):
"""Tests that we handle DiskNotFound gracefully for an instance that
is NOT undergoing a task_state transition and the error is re-raised.
"""
mock_dom = mock.Mock()
mock_dom.XMLDesc.return_value = "<domain/>"
mock_dom.UUIDString.return_value = uuids.instance
mock_list_domains.return_value = [mock_dom]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertRaises(exception.DiskNotFound,
drvr._get_disk_over_committed_size_total)
@mock.patch('nova.virt.libvirt.storage.lvm.get_volume_size')
@mock.patch('nova.virt.disk.api.get_disk_size',
new_callable=mock.NonCallableMock)
def test_get_instance_disk_info_from_config_block_devices(self,
mock_disk_api, mock_get_volume_size):
"""Test that for block devices the actual and virtual sizes are
reported as the same and that the disk_api is not used.
"""
c = context.get_admin_context()
instance = objects.Instance(root_device_name='/dev/vda',
**self.test_instance)
bdms = objects.BlockDeviceMappingList(objects=[
fake_block_device.fake_bdm_object(c, {
'device_name': '/dev/mapper/vg-lv',
'source_type': 'image',
'destination_type': 'local'
}),
])
block_device_info = driver.get_block_device_info(instance, bdms)
config = vconfig.LibvirtConfigGuest()
disk_config = vconfig.LibvirtConfigGuestDisk()
disk_config.source_type = "block"
disk_config.source_path = mock.sentinel.volume_path
config.devices.append(disk_config)
mock_get_volume_size.return_value = mock.sentinel.volume_size
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
disk_info = drvr._get_instance_disk_info_from_config(config,
block_device_info)
mock_get_volume_size.assert_called_once_with(mock.sentinel.volume_path)
self.assertEqual(disk_info[0]['disk_size'],
disk_info[0]['virt_disk_size'])
def test_cpu_info(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
def get_host_capabilities_stub(self):
cpu = vconfig.LibvirtConfigCPU()
cpu.model = "Opteron_G4"
cpu.vendor = "AMD"
cpu.arch = fields.Architecture.X86_64
cpu.cells = 1
cpu.cores = 2
cpu.threads = 1
cpu.sockets = 4
cpu.add_feature(vconfig.LibvirtConfigCPUFeature("extapic"))
cpu.add_feature(vconfig.LibvirtConfigCPUFeature("3dnow"))
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = cpu
guest = vconfig.LibvirtConfigGuest()
guest.ostype = fields.VMMode.HVM
guest.arch = fields.Architecture.X86_64
guest.domtype = ["kvm"]
caps.guests.append(guest)
guest = vconfig.LibvirtConfigGuest()
guest.ostype = fields.VMMode.HVM
guest.arch = fields.Architecture.I686
guest.domtype = ["kvm"]
caps.guests.append(guest)
return caps
self.stub_out('nova.virt.libvirt.host.Host.get_capabilities',
get_host_capabilities_stub)
want = {"vendor": "AMD",
"features": set(["extapic", "3dnow"]),
"model": "Opteron_G4",
"arch": fields.Architecture.X86_64,
"topology": {"cells": 1, "cores": 2, "threads": 1,
"sockets": 4}}
got = drvr._get_cpu_info()
self.assertEqual(want, got)
def test_get_pcinet_info(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
dev_name = "net_enp2s2_02_9a_a1_37_be_54"
parent_address = "pci_0000_04_11_7"
node_dev = FakeNodeDevice(_fake_NodeDevXml[dev_name])
with mock.patch.object(pci_utils, 'get_net_name_by_vf_pci_address',
return_value=dev_name) as mock_get_net_name, \
mock.patch.object(drvr._host, 'device_lookup_by_name',
return_value=node_dev) as mock_dev_lookup:
actualvf = drvr._get_pcinet_info(parent_address)
expect_vf = {
"name": dev_name,
"capabilities": ["rx", "tx", "sg", "tso", "gso", "gro",
"rxvlan", "txvlan"]
}
self.assertEqual(expect_vf, actualvf)
mock_get_net_name.called_once_with(parent_address)
mock_dev_lookup.called_once_with(dev_name)
@mock.patch.object(pci_utils, 'get_ifname_by_pci_address')
def test_get_pcidev_info_non_nic(self, mock_get_ifname):
self.stub_out('nova.virt.libvirt.host.Host.device_lookup_by_name',
lambda self, name: FakeNodeDevice(
_fake_NodeDevXml[name]))
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
id = "pci_0000_04_10_7"
mock_get_ifname.side_effect = exception.PciDeviceNotFoundById(id=id)
actualvf = drvr._get_pcidev_info(id)
expect_vf = {
"dev_id": id,
"address": "0000:04:10.7",
"product_id": '1520',
"numa_node": None,
"vendor_id": '8086',
"label": 'label_8086_1520',
"dev_type": fields.PciDeviceType.SRIOV_VF,
'parent_addr': '0000:04:00.3',
}
self.assertEqual(expect_vf, actualvf)
@mock.patch.object(pci_utils, 'get_ifname_by_pci_address',
return_value='ens1')
def test_get_pcidev_info(self, mock_get_ifname):
self.stub_out('nova.virt.libvirt.host.Host.device_lookup_by_name',
lambda self, name: FakeNodeDevice(
_fake_NodeDevXml[name]))
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
actualvf = drvr._get_pcidev_info("pci_0000_04_00_3")
expect_vf = {
"dev_id": "pci_0000_04_00_3",
"address": "0000:04:00.3",
"product_id": '1521',
"numa_node": None,
"vendor_id": '8086',
"label": 'label_8086_1521',
"dev_type": fields.PciDeviceType.SRIOV_PF,
}
self.assertEqual(expect_vf, actualvf)
actualvf = drvr._get_pcidev_info("pci_0000_04_10_7")
expect_vf = {
"dev_id": "pci_0000_04_10_7",
"address": "0000:04:10.7",
"product_id": '1520',
"numa_node": None,
"vendor_id": '8086',
"label": 'label_8086_1520',
"dev_type": fields.PciDeviceType.SRIOV_VF,
"parent_addr": '0000:04:00.3',
"parent_ifname": "ens1",
}
self.assertEqual(expect_vf, actualvf)
with mock.patch.object(pci_utils, 'get_net_name_by_vf_pci_address',
return_value="net_enp2s2_02_9a_a1_37_be_54"):
actualvf = drvr._get_pcidev_info("pci_0000_04_11_7")
expect_vf = {
"dev_id": "pci_0000_04_11_7",
"address": "0000:04:11.7",
"product_id": '1520',
"vendor_id": '8086',
"numa_node": 0,
"label": 'label_8086_1520',
"dev_type": fields.PciDeviceType.SRIOV_VF,
"parent_addr": '0000:04:00.3',
"capabilities": {
"network": ["rx", "tx", "sg", "tso", "gso", "gro",
"rxvlan", "txvlan"]},
"parent_ifname": "ens1",
}
self.assertEqual(expect_vf, actualvf)
actualvf = drvr._get_pcidev_info("pci_0000_04_00_1")
expect_vf = {
"dev_id": "pci_0000_04_00_1",
"address": "0000:04:00.1",
"product_id": '1013',
"numa_node": 0,
"vendor_id": '15b3',
"label": 'label_15b3_1013',
"dev_type": fields.PciDeviceType.STANDARD,
}
self.assertEqual(expect_vf, actualvf)
actualvf = drvr._get_pcidev_info("pci_0000_03_00_0")
expect_vf = {
"dev_id": "pci_0000_03_00_0",
"address": "0000:03:00.0",
"product_id": '1013',
"numa_node": 0,
"vendor_id": '15b3',
"label": 'label_15b3_1013',
"dev_type": fields.PciDeviceType.SRIOV_PF,
}
self.assertEqual(expect_vf, actualvf)
actualvf = drvr._get_pcidev_info("pci_0000_03_00_1")
expect_vf = {
"dev_id": "pci_0000_03_00_1",
"address": "0000:03:00.1",
"product_id": '1013',
"numa_node": 0,
"vendor_id": '15b3',
"label": 'label_15b3_1013',
"dev_type": fields.PciDeviceType.SRIOV_PF,
}
self.assertEqual(expect_vf, actualvf)
def test_list_devices_not_supported(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
# Handle just the NO_SUPPORT error
not_supported_exc = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
'this function is not supported by the connection driver:'
' virNodeNumOfDevices',
error_code=fakelibvirt.VIR_ERR_NO_SUPPORT)
with mock.patch.object(drvr._conn, 'listDevices',
side_effect=not_supported_exc):
self.assertEqual('[]', drvr._get_pci_passthrough_devices())
# We cache not supported status to avoid emitting too many logging
# messages. Clear this value to test the other exception case.
del drvr._list_devices_supported
# Other errors should not be caught
other_exc = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
'other exc',
error_code=fakelibvirt.VIR_ERR_NO_DOMAIN)
with mock.patch.object(drvr._conn, 'listDevices',
side_effect=other_exc):
self.assertRaises(fakelibvirt.libvirtError,
drvr._get_pci_passthrough_devices)
@mock.patch.object(pci_utils, 'get_ifname_by_pci_address',
return_value='ens1')
@mock.patch.object(host.Host, 'list_pci_devices',
return_value=['pci_0000_04_00_3', 'pci_0000_04_10_7',
'pci_0000_04_11_7'])
def test_get_pci_passthrough_devices(self, mock_list, mock_get_ifname):
self.stub_out('nova.virt.libvirt.host.Host.device_lookup_by_name',
lambda self, name: FakeNodeDevice(
_fake_NodeDevXml[name]))
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
actjson = drvr._get_pci_passthrough_devices()
expectvfs = [
{
"dev_id": "pci_0000_04_00_3",
"address": "0000:04:00.3",
"product_id": '1521',
"vendor_id": '8086',
"dev_type": fields.PciDeviceType.SRIOV_PF,
"phys_function": None,
"numa_node": None},
{
"dev_id": "pci_0000_04_10_7",
"domain": 0,
"address": "0000:04:10.7",
"product_id": '1520',
"vendor_id": '8086',
"numa_node": None,
"dev_type": fields.PciDeviceType.SRIOV_VF,
"phys_function": [('0x0000', '0x04', '0x00', '0x3')],
"parent_addr": "0000:04:00.3",
"parent_ifname": "ens1",
},
{
"dev_id": "pci_0000_04_11_7",
"domain": 0,
"address": "0000:04:11.7",
"product_id": '1520',
"vendor_id": '8086',
"numa_node": 0,
"dev_type": fields.PciDeviceType.SRIOV_VF,
"phys_function": [('0x0000', '0x04', '0x00', '0x3')],
"parent_addr": "0000:04:00.3",
"parent_ifname": "ens1",
}
]
actualvfs = jsonutils.loads(actjson)
for dev in range(len(actualvfs)):
for key in actualvfs[dev].keys():
if key not in ['phys_function', 'virt_functions', 'label']:
self.assertEqual(expectvfs[dev][key], actualvfs[dev][key])
mock_list.assert_called_once_with()
# The first call for every VF is to determine parent_ifname and
# the second call to determine the MAC address.
mock_get_ifname.assert_has_calls([
mock.call('0000:04:10.7', pf_interface=True),
mock.call('0000:04:10.7', False),
mock.call('0000:04:11.7', pf_interface=True),
mock.call('0000:04:11.7', False)
])
# TODO(stephenfin): This only has one caller. Flatten it and remove the
# 'mempages=False' branches or add the missing test
def _test_get_host_numa_topology(self, mempages):
self.flags(physnets=['foo', 'bar', 'baz'], group='neutron')
# we need to call the below again to ensure the updated 'physnets'
# value is read and the new groups created
nova.conf.neutron.register_dynamic_opts(CONF)
self.flags(numa_nodes=[0, 2], group='neutron_tunnel')
self.flags(numa_nodes=[1], group='neutron_physnet_foo')
self.flags(numa_nodes=[3], group='neutron_physnet_bar')
self.flags(numa_nodes=[1, 2, 3], group='neutron_physnet_baz')
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology()
if mempages:
for i, cell in enumerate(caps.host.topology.cells):
cell.mempages = fakelibvirt.create_mempages(
[(4, 1024 * i), (2048, i)])
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with test.nested(
mock.patch.object(host.Host, "get_capabilities",
return_value=caps),
mock.patch.object(
hardware, 'get_vcpu_pin_set',
return_value=set([0, 1, 3, 4, 5])),
mock.patch.object(host.Host, 'get_online_cpus',
return_value=set([0, 1, 2, 3, 6])),
):
got_topo = drvr._get_host_numa_topology()
if mempages:
# cells 0
self.assertEqual(4, got_topo.cells[0].mempages[0].size_kb)
self.assertEqual(0, got_topo.cells[0].mempages[0].total)
self.assertEqual(2048, got_topo.cells[0].mempages[1].size_kb)
self.assertEqual(0, got_topo.cells[0].mempages[1].total)
# cells 1
self.assertEqual(4, got_topo.cells[1].mempages[0].size_kb)
self.assertEqual(1024, got_topo.cells[1].mempages[0].total)
self.assertEqual(2048, got_topo.cells[1].mempages[1].size_kb)
self.assertEqual(1, got_topo.cells[1].mempages[1].total)
else:
self.assertEqual([], got_topo.cells[0].mempages)
self.assertEqual([], got_topo.cells[1].mempages)
self.assertEqual(set([]), got_topo.cells[0].pinned_cpus)
self.assertEqual(set([]), got_topo.cells[1].pinned_cpus)
self.assertEqual(set([]), got_topo.cells[2].pinned_cpus)
self.assertEqual(set([]), got_topo.cells[3].pinned_cpus)
self.assertEqual([set([0, 1])], got_topo.cells[0].siblings)
self.assertEqual([set([3])], got_topo.cells[1].siblings)
self.assertEqual(set(),
got_topo.cells[0].network_metadata.physnets)
self.assertEqual(set(['foo', 'baz']),
got_topo.cells[1].network_metadata.physnets)
self.assertEqual(set(['baz']),
got_topo.cells[2].network_metadata.physnets)
self.assertEqual(set(['bar', 'baz']),
got_topo.cells[3].network_metadata.physnets)
self.assertTrue(got_topo.cells[0].network_metadata.tunneled)
self.assertFalse(got_topo.cells[1].network_metadata.tunneled)
self.assertTrue(got_topo.cells[2].network_metadata.tunneled)
self.assertFalse(got_topo.cells[3].network_metadata.tunneled)
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
def test_get_host_numa_topology(self, mock_version):
self._test_get_host_numa_topology(mempages=True)
def test_get_host_numa_topology_empty(self):
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = None
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with test.nested(
mock.patch.object(host.Host, 'has_min_version', return_value=True),
mock.patch.object(host.Host, "get_capabilities",
return_value=caps)
) as (has_min_version, get_caps):
self.assertIsNone(drvr._get_host_numa_topology())
self.assertEqual(2, get_caps.call_count)
@mock.patch.object(fakelibvirt.Connection, 'getType')
@mock.patch.object(fakelibvirt.Connection, 'getVersion')
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion')
def test_get_host_numa_topology_xen(self, mock_lib_version,
mock_version, mock_type):
self.flags(virt_type='xen', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_lib_version.return_value = versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_VERSION)
mock_version.return_value = versionutils.convert_version_to_int(
libvirt_driver.MIN_QEMU_VERSION)
mock_type.return_value = host.HV_DRIVER_XEN
self.assertIsNone(drvr._get_host_numa_topology())
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
def test_get_host_numa_topology_missing_network_metadata(self,
mock_version):
self.flags(physnets=['bar'], group='neutron')
# we need to call the below again to ensure the updated 'physnets'
# value is read and the new groups created
nova.conf.neutron.register_dynamic_opts(CONF)
# we explicitly avoid registering a '[neutron_physnets_bar] numa_nodes'
# option here
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with test.nested(
mock.patch.object(host.Host, "get_capabilities",
return_value=caps),
mock.patch.object(hardware, 'get_vcpu_pin_set',
return_value=set([0, 1, 3, 4, 5])),
mock.patch.object(host.Host, 'get_online_cpus',
return_value=set([0, 1, 2, 3, 6])),
):
self.assertRaisesRegex(
exception.InvalidNetworkNUMAAffinity,
"Invalid NUMA network affinity configured: the physnet 'bar' "
"was listed in '\[neutron\] physnets' but no corresponding "
"'\[neutron_physnet_bar\] numa_nodes' option was defined.",
drvr._get_host_numa_topology)
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
def _test_get_host_numa_topology_invalid_network_affinity(self,
group_name, mock_version):
self.flags(physnets=['foo', 'bar'], group='neutron')
# we need to call the below again to ensure the updated 'physnets'
# value is read and the new groups created
nova.conf.neutron.register_dynamic_opts(CONF)
# set defaults...
for group_ in ['neutron_physnet_foo', 'neutron_physnet_bar',
'neutron_tunnel']:
self.flags(numa_nodes=[0], group=group_)
# but override them for the error case
self.flags(numa_nodes=[4], group=group_name)
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = vconfig.LibvirtConfigCPU()
caps.host.cpu.arch = fields.Architecture.X86_64
caps.host.topology = fakelibvirt.NUMATopology()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with test.nested(
mock.patch.object(host.Host, "get_capabilities",
return_value=caps),
mock.patch.object(hardware, 'get_vcpu_pin_set',
return_value=set([0, 1, 3, 4, 5])),
mock.patch.object(host.Host, 'get_online_cpus',
return_value=set([0, 1, 2, 3, 6])),
):
self.assertRaisesRegex(
exception.InvalidNetworkNUMAAffinity,
r'node 4 for \w+ \w+ is not present',
drvr._get_host_numa_topology)
def test_get_host_numa_topology_invalid_physical_network_affinity(self):
"""Ensure errors are raised for non-existent NUMA nodes.
If a physical network is affined to a non-existent NUMA node, an
exception should be raised. Prove this to be the case.
"""
self._test_get_host_numa_topology_invalid_network_affinity(
'neutron_physnet_bar')
def test_get_host_numa_topology_invalid_tunnel_network_affinity(self):
"""Ensure errors are raised for non-existent NUMA nodes.
If a tunneled network is affined to a non-existent NUMA node, an
exception should be raised. Prove this to be the case.
"""
self._test_get_host_numa_topology_invalid_network_affinity(
'neutron_tunnel')
def test_diagnostic_vcpus_exception(self):
xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='filename'/>
<target dev='vda' bus='virtio'/>
</disk>
<disk type='block'>
<source dev='/path/to/dev/1'/>
<target dev='vdb' bus='virtio'/>
</disk>
<interface type='network'>
<mac address='52:54:00:a4:38:38'/>
<source network='default'/>
<target dev='vnet0'/>
</interface>
</devices>
</domain>
"""
class DiagFakeDomain(FakeVirtDomain):
def __init__(self):
super(DiagFakeDomain, self).__init__(fake_xml=xml)
def vcpus(self):
raise fakelibvirt.libvirtError('vcpus missing')
def blockStats(self, path):
return (169, 688640, 0, 0, 1)
def interfaceStats(self, path):
return (4408, 82, 0, 0, 0, 0, 0, 0)
def memoryStats(self):
return {'actual': 220160, 'rss': 200164}
def maxMemory(self):
return 280160
self.stub_out('nova.virt.libvirt.host.Host._get_domain',
lambda self, instance: DiagFakeDomain())
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
actual = drvr.get_diagnostics(instance)
expect = {'vda_read': 688640,
'vda_read_req': 169,
'vda_write': 0,
'vda_write_req': 0,
'vda_errors': 1,
'vdb_read': 688640,
'vdb_read_req': 169,
'vdb_write': 0,
'vdb_write_req': 0,
'vdb_errors': 1,
'memory': 280160,
'memory-actual': 220160,
'memory-rss': 200164,
'vnet0_rx': 4408,
'vnet0_rx_drop': 0,
'vnet0_rx_errors': 0,
'vnet0_rx_packets': 82,
'vnet0_tx': 0,
'vnet0_tx_drop': 0,
'vnet0_tx_errors': 0,
'vnet0_tx_packets': 0,
}
self.assertEqual(actual, expect)
lt = datetime.datetime(2012, 11, 22, 12, 00, 00)
diags_time = datetime.datetime(2012, 11, 22, 12, 00, 10)
self.useFixture(utils_fixture.TimeFixture(diags_time))
instance.launched_at = lt
actual = drvr.get_instance_diagnostics(instance)
expected = fake_diagnostics_object(with_disks=True, with_nic=True)
self.assertDiagnosticsEqual(expected, actual)
def test_diagnostic_blockstats_exception(self):
xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='filename'/>
<target dev='vda' bus='virtio'/>
</disk>
<disk type='block'>
<source dev='/path/to/dev/1'/>
<target dev='vdb' bus='virtio'/>
</disk>
<interface type='network'>
<mac address='52:54:00:a4:38:38'/>
<source network='default'/>
<target dev='vnet0'/>
</interface>
</devices>
</domain>
"""
class DiagFakeDomain(FakeVirtDomain):
def __init__(self):
super(DiagFakeDomain, self).__init__(fake_xml=xml)
def vcpus(self):
return ([(0, 1, 15340000000, 0),
(1, 1, 1640000000, 0),
(2, 1, 3040000000, 0),
(3, 1, 1420000000, 0)],
[(True, False),
(True, False),
(True, False),
(True, False)])
def blockStats(self, path):
raise fakelibvirt.libvirtError('blockStats missing')
def interfaceStats(self, path):
return (4408, 82, 0, 0, 0, 0, 0, 0)
def memoryStats(self):
return {'actual': 220160, 'rss': 200164}
def maxMemory(self):
return 280160
self.stub_out('nova.virt.libvirt.host.Host._get_domain',
lambda self, instance: DiagFakeDomain())
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
actual = drvr.get_diagnostics(instance)
expect = {'cpu0_time': 15340000000,
'cpu1_time': 1640000000,
'cpu2_time': 3040000000,
'cpu3_time': 1420000000,
'memory': 280160,
'memory-actual': 220160,
'memory-rss': 200164,
'vnet0_rx': 4408,
'vnet0_rx_drop': 0,
'vnet0_rx_errors': 0,
'vnet0_rx_packets': 82,
'vnet0_tx': 0,
'vnet0_tx_drop': 0,
'vnet0_tx_errors': 0,
'vnet0_tx_packets': 0,
}
self.assertEqual(actual, expect)
lt = datetime.datetime(2012, 11, 22, 12, 00, 00)
diags_time = datetime.datetime(2012, 11, 22, 12, 00, 10)
self.useFixture(utils_fixture.TimeFixture(diags_time))
instance.launched_at = lt
actual = drvr.get_instance_diagnostics(instance)
expected = fake_diagnostics_object(with_cpus=True, with_nic=True)
self.assertDiagnosticsEqual(expected, actual)
def test_diagnostic_interfacestats_exception(self):
xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='filename'/>
<target dev='vda' bus='virtio'/>
</disk>
<disk type='block'>
<source dev='/path/to/dev/1'/>
<target dev='vdb' bus='virtio'/>
</disk>
<interface type='network'>
<mac address='52:54:00:a4:38:38'/>
<source network='default'/>
<target dev='vnet0'/>
</interface>
</devices>
</domain>
"""
class DiagFakeDomain(FakeVirtDomain):
def __init__(self):
super(DiagFakeDomain, self).__init__(fake_xml=xml)
def vcpus(self):
return ([(0, 1, 15340000000, 0),
(1, 1, 1640000000, 0),
(2, 1, 3040000000, 0),
(3, 1, 1420000000, 0)],
[(True, False),
(True, False),
(True, False),
(True, False)])
def blockStats(self, path):
return (169, 688640, 0, 0, 1)
def interfaceStats(self, path):
raise fakelibvirt.libvirtError('interfaceStat missing')
def memoryStats(self):
return {'actual': 220160, 'rss': 200164}
def maxMemory(self):
return 280160
self.stub_out('nova.virt.libvirt.host.Host._get_domain',
lambda self, instance: DiagFakeDomain())
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
actual = drvr.get_diagnostics(instance)
expect = {'cpu0_time': 15340000000,
'cpu1_time': 1640000000,
'cpu2_time': 3040000000,
'cpu3_time': 1420000000,
'vda_read': 688640,
'vda_read_req': 169,
'vda_write': 0,
'vda_write_req': 0,
'vda_errors': 1,
'vdb_read': 688640,
'vdb_read_req': 169,
'vdb_write': 0,
'vdb_write_req': 0,
'vdb_errors': 1,
'memory': 280160,
'memory-actual': 220160,
'memory-rss': 200164,
}
self.assertEqual(actual, expect)
lt = datetime.datetime(2012, 11, 22, 12, 00, 00)
diags_time = datetime.datetime(2012, 11, 22, 12, 00, 10)
self.useFixture(utils_fixture.TimeFixture(diags_time))
instance.launched_at = lt
actual = drvr.get_instance_diagnostics(instance)
expected = fake_diagnostics_object(with_cpus=True, with_disks=True)
self.assertDiagnosticsEqual(expected, actual)
def test_diagnostic_memorystats_exception(self):
xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='filename'/>
<target dev='vda' bus='virtio'/>
</disk>
<disk type='block'>
<source dev='/path/to/dev/1'/>
<target dev='vdb' bus='virtio'/>
</disk>
<interface type='network'>
<mac address='52:54:00:a4:38:38'/>
<source network='default'/>
<target dev='vnet0'/>
</interface>
</devices>
</domain>
"""
class DiagFakeDomain(FakeVirtDomain):
def __init__(self):
super(DiagFakeDomain, self).__init__(fake_xml=xml)
def vcpus(self):
return ([(0, 1, 15340000000, 0),
(1, 1, 1640000000, 0),
(2, 1, 3040000000, 0),
(3, 1, 1420000000, 0)],
[(True, False),
(True, False),
(True, False),
(True, False)])
def blockStats(self, path):
return (169, 688640, 0, 0, 1)
def interfaceStats(self, path):
return (4408, 82, 0, 0, 0, 0, 0, 0)
def memoryStats(self):
raise fakelibvirt.libvirtError('memoryStats missing')
def maxMemory(self):
return 280160
self.stub_out('nova.virt.libvirt.host.Host._get_domain',
lambda self, instance: DiagFakeDomain())
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
actual = drvr.get_diagnostics(instance)
expect = {'cpu0_time': 15340000000,
'cpu1_time': 1640000000,
'cpu2_time': 3040000000,
'cpu3_time': 1420000000,
'vda_read': 688640,
'vda_read_req': 169,
'vda_write': 0,
'vda_write_req': 0,
'vda_errors': 1,
'vdb_read': 688640,
'vdb_read_req': 169,
'vdb_write': 0,
'vdb_write_req': 0,
'vdb_errors': 1,
'memory': 280160,
'vnet0_rx': 4408,
'vnet0_rx_drop': 0,
'vnet0_rx_errors': 0,
'vnet0_rx_packets': 82,
'vnet0_tx': 0,
'vnet0_tx_drop': 0,
'vnet0_tx_errors': 0,
'vnet0_tx_packets': 0,
}
self.assertEqual(actual, expect)
lt = datetime.datetime(2012, 11, 22, 12, 00, 00)
diags_time = datetime.datetime(2012, 11, 22, 12, 00, 10)
self.useFixture(utils_fixture.TimeFixture(diags_time))
instance.launched_at = lt
actual = drvr.get_instance_diagnostics(instance)
expected = fake_diagnostics_object(with_cpus=True, with_disks=True,
with_nic=True)
self.assertDiagnosticsEqual(expected, actual)
def test_diagnostic_full(self):
xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='filename'/>
<target dev='vda' bus='virtio'/>
</disk>
<disk type='block'>
<source dev='/path/to/dev/1'/>
<target dev='vdb' bus='virtio'/>
</disk>
<interface type='network'>
<mac address='52:54:00:a4:38:38'/>
<source network='default'/>
<target dev='vnet0'/>
</interface>
</devices>
</domain>
"""
class DiagFakeDomain(FakeVirtDomain):
def __init__(self):
super(DiagFakeDomain, self).__init__(fake_xml=xml)
def vcpus(self):
return ([(0, 1, 15340000000, 0),
(1, 1, 1640000000, 0),
(2, 1, 3040000000, 0),
(3, 1, 1420000000, 0)],
[(True, False),
(True, False),
(True, False),
(True, False)])
def blockStats(self, path):
return (169, 688640, 0, 0, 1)
def interfaceStats(self, path):
return (4408, 82, 0, 0, 0, 0, 0, 0)
def memoryStats(self):
return {'actual': 220160, 'rss': 200164}
def maxMemory(self):
return 280160
self.stub_out('nova.virt.libvirt.host.Host._get_domain',
lambda self, instance: DiagFakeDomain())
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
actual = drvr.get_diagnostics(instance)
expect = {'cpu0_time': 15340000000,
'cpu1_time': 1640000000,
'cpu2_time': 3040000000,
'cpu3_time': 1420000000,
'vda_read': 688640,
'vda_read_req': 169,
'vda_write': 0,
'vda_write_req': 0,
'vda_errors': 1,
'vdb_read': 688640,
'vdb_read_req': 169,
'vdb_write': 0,
'vdb_write_req': 0,
'vdb_errors': 1,
'memory': 280160,
'memory-actual': 220160,
'memory-rss': 200164,
'vnet0_rx': 4408,
'vnet0_rx_drop': 0,
'vnet0_rx_errors': 0,
'vnet0_rx_packets': 82,
'vnet0_tx': 0,
'vnet0_tx_drop': 0,
'vnet0_tx_errors': 0,
'vnet0_tx_packets': 0,
}
self.assertEqual(actual, expect)
lt = datetime.datetime(2012, 11, 22, 12, 00, 00)
diags_time = datetime.datetime(2012, 11, 22, 12, 00, 10)
self.useFixture(utils_fixture.TimeFixture(diags_time))
instance.launched_at = lt
actual = drvr.get_instance_diagnostics(instance)
expected = fake_diagnostics_object(with_cpus=True, with_disks=True,
with_nic=True)
self.assertDiagnosticsEqual(expected, actual)
@mock.patch.object(host.Host, '_get_domain')
def test_diagnostic_full_with_multiple_interfaces(self, mock_get_domain):
xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='filename'/>
<target dev='vda' bus='virtio'/>
</disk>
<disk type='block'>
<source dev='/path/to/dev/1'/>
<target dev='vdb' bus='virtio'/>
</disk>
<interface type='network'>
<mac address='52:54:00:a4:38:38'/>
<source network='default'/>
<target dev='vnet0'/>
</interface>
<interface type="bridge">
<mac address="53:55:00:a5:39:39"/>
<model type="virtio"/>
<target dev="br0"/>
</interface>
<interface type='hostdev' managed='yes'>
<mac address="54:56:00:a6:40:40"/>
<driver name='vfio'/>
</interface>
</devices>
</domain>
"""
class DiagFakeDomain(FakeVirtDomain):
def __init__(self):
super(DiagFakeDomain, self).__init__(fake_xml=xml)
def vcpus(self):
return ([(0, 1, 15340000000, 0),
(1, 1, 1640000000, 0),
(2, 1, 3040000000, 0),
(3, 1, 1420000000, 0)],
[(True, False),
(True, False),
(True, False),
(True, False)])
def blockStats(self, path):
return (169, 688640, 0, 0, 1)
def interfaceStats(self, path):
return (4408, 82, 0, 0, 0, 0, 0, 0)
def memoryStats(self):
return {'actual': 220160, 'rss': 200164}
def maxMemory(self):
return 280160
def fake_get_domain(self):
return DiagFakeDomain()
mock_get_domain.side_effect = fake_get_domain
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
actual = drvr.get_diagnostics(instance)
expect = {'cpu0_time': 15340000000,
'cpu1_time': 1640000000,
'cpu2_time': 3040000000,
'cpu3_time': 1420000000,
'vda_read': 688640,
'vda_read_req': 169,
'vda_write': 0,
'vda_write_req': 0,
'vda_errors': 1,
'vdb_read': 688640,
'vdb_read_req': 169,
'vdb_write': 0,
'vdb_write_req': 0,
'vdb_errors': 1,
'memory': 280160,
'memory-actual': 220160,
'memory-rss': 200164,
'vnet0_rx': 4408,
'vnet0_rx_drop': 0,
'vnet0_rx_errors': 0,
'vnet0_rx_packets': 82,
'vnet0_tx': 0,
'vnet0_tx_drop': 0,
'vnet0_tx_errors': 0,
'vnet0_tx_packets': 0,
'br0_rx': 4408,
'br0_rx_drop': 0,
'br0_rx_errors': 0,
'br0_rx_packets': 82,
'br0_tx': 0,
'br0_tx_drop': 0,
'br0_tx_errors': 0,
'br0_tx_packets': 0,
}
self.assertEqual(actual, expect)
lt = datetime.datetime(2012, 11, 22, 12, 00, 00)
diags_time = datetime.datetime(2012, 11, 22, 12, 00, 10)
self.useFixture(utils_fixture.TimeFixture(diags_time))
instance.launched_at = lt
actual = drvr.get_instance_diagnostics(instance)
expected = fake_diagnostics_object(with_cpus=True, with_disks=True,
with_nic=True)
expected.add_nic(mac_address='53:55:00:a5:39:39',
rx_drop=0,
rx_errors=0,
rx_octets=4408,
rx_packets=82,
tx_drop=0,
tx_errors=0,
tx_octets=0,
tx_packets=0)
expected.add_nic(mac_address='54:56:00:a6:40:40')
self.assertDiagnosticsEqual(expected, actual)
@mock.patch.object(host.Host, "list_instance_domains")
def test_failing_vcpu_count(self, mock_list):
"""Domain can fail to return the vcpu description in case it's
just starting up or shutting down. Make sure None is handled
gracefully.
"""
class DiagFakeDomain(object):
def __init__(self, vcpus):
self._vcpus = vcpus
def vcpus(self):
if self._vcpus is None:
raise fakelibvirt.libvirtError("fake-error")
else:
return ([[1, 2, 3, 4]] * self._vcpus, [True] * self._vcpus)
def ID(self):
return 1
def name(self):
return "instance000001"
def UUIDString(self):
return "19479fee-07a5-49bb-9138-d3738280d63c"
mock_list.return_value = [
DiagFakeDomain(None), DiagFakeDomain(5)]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertEqual(6, drvr._get_vcpu_used())
mock_list.assert_called_with(only_guests=True, only_running=True)
def _test_get_instance_capabilities(self, want):
'''Base test for 'get_capabilities' function. '''
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
def get_host_capabilities_stub(self):
caps = vconfig.LibvirtConfigCaps()
guest = vconfig.LibvirtConfigGuest()
guest.ostype = 'hvm'
guest.arch = fields.Architecture.X86_64
guest.domtype = ['kvm', 'qemu']
caps.guests.append(guest)
guest = vconfig.LibvirtConfigGuest()
guest.ostype = 'hvm'
guest.arch = fields.Architecture.I686
guest.domtype = ['kvm']
caps.guests.append(guest)
# Include one that is not known to nova to make sure it
# does not trip us up.
guest = vconfig.LibvirtConfigGuest()
guest.ostype = 'hvm'
guest.arch = 'itanic'
guest.domtype = ['kvm']
caps.guests.append(guest)
return caps
self.stub_out('nova.virt.libvirt.host.Host.get_capabilities',
get_host_capabilities_stub)
got = drvr._get_instance_capabilities()
self.assertEqual(want, got)
def test_get_instance_capabilities_kvm(self):
self.flags(virt_type='kvm', group='libvirt')
# Because virt_type is set to kvm, we get only
# capabilities where the hypervisor_type is kvm
want = [(fields.Architecture.X86_64, 'kvm', 'hvm'),
(fields.Architecture.I686, 'kvm', 'hvm')]
self._test_get_instance_capabilities(want)
def test_get_instance_capabilities_qemu(self):
self.flags(virt_type='qemu', group='libvirt')
# Because virt_type is set to qemu, we get only
# capabilities where the hypervisor_type is qemu
want = [(fields.Architecture.X86_64, 'qemu', 'hvm')]
self._test_get_instance_capabilities(want)
def test_set_cache_mode(self):
self.flags(disk_cachemodes=['file=directsync'], group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
fake_conf = FakeConfigGuestDisk()
fake_conf.source_type = 'file'
drvr._set_cache_mode(fake_conf)
self.assertEqual(fake_conf.driver_cache, 'directsync')
def test_set_cache_mode_shareable(self):
"""Tests that when conf.shareable is True, the configuration is
ignored and the driver_cache is forced to 'none'.
"""
self.flags(disk_cachemodes=['block=writeback'], group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
fake_conf = FakeConfigGuestDisk()
fake_conf.shareable = True
fake_conf.source_type = 'block'
drvr._set_cache_mode(fake_conf)
self.assertEqual('none', fake_conf.driver_cache)
def test_set_cache_mode_invalid_mode(self):
self.flags(disk_cachemodes=['file=FAKE'], group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
fake_conf = FakeConfigGuestDisk()
fake_conf.source_type = 'file'
drvr._set_cache_mode(fake_conf)
self.assertIsNone(fake_conf.driver_cache)
def test_set_cache_mode_invalid_object(self):
self.flags(disk_cachemodes=['file=directsync'], group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
fake_conf = FakeConfigGuest()
fake_conf.driver_cache = 'fake'
drvr._set_cache_mode(fake_conf)
self.assertEqual(fake_conf.driver_cache, 'fake')
@mock.patch('os.unlink')
@mock.patch.object(os.path, 'exists')
def _test_shared_storage_detection(self, is_same,
mock_exists, mock_unlink):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.get_host_ip_addr = mock.MagicMock(return_value='bar')
mock_exists.return_value = is_same
with test.nested(
mock.patch.object(drvr._remotefs, 'create_file'),
mock.patch.object(drvr._remotefs, 'remove_file')
) as (mock_rem_fs_create, mock_rem_fs_remove):
result = drvr._is_storage_shared_with('host', '/path')
mock_rem_fs_create.assert_any_call('host', mock.ANY)
create_args, create_kwargs = mock_rem_fs_create.call_args
self.assertTrue(create_args[1].startswith('/path'))
if is_same:
mock_unlink.assert_called_once_with(mock.ANY)
else:
mock_rem_fs_remove.assert_called_with('host', mock.ANY)
remove_args, remove_kwargs = mock_rem_fs_remove.call_args
self.assertTrue(remove_args[1].startswith('/path'))
return result
def test_shared_storage_detection_same_host(self):
self.assertTrue(self._test_shared_storage_detection(True))
def test_shared_storage_detection_different_host(self):
self.assertFalse(self._test_shared_storage_detection(False))
@mock.patch.object(os, 'unlink')
@mock.patch.object(os.path, 'exists')
@mock.patch.object(utils, 'execute')
@mock.patch.object(libvirt_driver.LibvirtDriver, 'get_host_ip_addr',
return_value='foo')
def test_shared_storage_detection_easy(self, mock_get, mock_exec,
mock_exists, mock_unlink):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertTrue(drvr._is_storage_shared_with('foo', '/path'))
mock_get.assert_called_once_with()
mock_exec.assert_not_called()
mock_exists.assert_not_called()
mock_unlink.assert_not_called()
def test_store_pid_remove_pid(self):
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
popen = mock.Mock(pid=3)
drvr.job_tracker.add_job(instance, popen.pid)
self.assertIn(3, drvr.job_tracker.jobs[instance.uuid])
drvr.job_tracker.remove_job(instance, popen.pid)
self.assertNotIn(instance.uuid, drvr.job_tracker.jobs)
@mock.patch('nova.virt.libvirt.host.Host._get_domain')
def test_get_domain_info_with_more_return(self, mock_get_domain):
instance = objects.Instance(**self.test_instance)
dom_mock = mock.MagicMock()
dom_mock.info.return_value = [
1, 2048, 737, 8, 12345, 888888
]
dom_mock.ID.return_value = mock.sentinel.instance_id
mock_get_domain.return_value = dom_mock
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
info = drvr.get_info(instance)
self.assertEqual(1, info.state)
self.assertEqual(mock.sentinel.instance_id, info.internal_id)
dom_mock.info.assert_called_once_with()
dom_mock.ID.assert_called_once_with()
mock_get_domain.assert_called_once_with(instance)
def test_create_domain(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
mock_domain = mock.MagicMock()
guest = drvr._create_domain(domain=mock_domain)
self.assertEqual(mock_domain, guest._domain)
mock_domain.createWithFlags.assert_has_calls([mock.call(0)])
@mock.patch('nova.virt.disk.api.clean_lxc_namespace')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.get_info')
@mock.patch('nova.virt.disk.api.setup_container')
@mock.patch('oslo_utils.fileutils.ensure_tree')
@mock.patch('nova.virt.libvirt.utils.get_instance_path')
def test_create_domain_lxc(self, mock_get_inst_path, mock_ensure_tree,
mock_setup_container, mock_get_info, mock_clean):
self.flags(virt_type='lxc', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
mock_instance = mock.MagicMock()
inst_sys_meta = dict()
mock_instance.system_metadata = inst_sys_meta
mock_get_inst_path.return_value = '/tmp/'
mock_image_backend = mock.MagicMock()
drvr.image_backend = mock_image_backend
mock_image = mock.MagicMock()
mock_image.path = '/tmp/test.img'
drvr.image_backend.by_name.return_value = mock_image
mock_setup_container.return_value = '/dev/nbd0'
mock_get_info.return_value = hardware.InstanceInfo(
state=power_state.RUNNING)
with test.nested(
mock.patch.object(drvr, '_is_booted_from_volume',
return_value=False),
mock.patch.object(drvr, '_create_domain'),
mock.patch.object(drvr, 'plug_vifs'),
mock.patch.object(drvr.firewall_driver, 'setup_basic_filtering'),
mock.patch.object(drvr.firewall_driver, 'prepare_instance_filter'),
mock.patch.object(drvr.firewall_driver, 'apply_instance_filter')):
drvr._create_domain_and_network(self.context, 'xml',
mock_instance, [])
self.assertEqual('/dev/nbd0', inst_sys_meta['rootfs_device_name'])
self.assertFalse(mock_instance.called)
mock_get_inst_path.assert_has_calls([mock.call(mock_instance)])
mock_ensure_tree.assert_has_calls([mock.call('/tmp/rootfs')])
drvr.image_backend.by_name.assert_has_calls([mock.call(mock_instance,
'disk')])
setup_container_call = mock.call(
mock_image.get_model(),
container_dir='/tmp/rootfs')
mock_setup_container.assert_has_calls([setup_container_call])
mock_get_info.assert_has_calls([mock.call(mock_instance)])
mock_clean.assert_has_calls([mock.call(container_dir='/tmp/rootfs')])
@mock.patch('nova.virt.disk.api.clean_lxc_namespace')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.get_info')
@mock.patch('nova.virt.libvirt.utils.chown_for_id_maps')
@mock.patch('nova.virt.disk.api.setup_container')
@mock.patch('oslo_utils.fileutils.ensure_tree')
@mock.patch('nova.virt.libvirt.utils.get_instance_path')
def test_create_domain_lxc_id_maps(self, mock_get_inst_path,
mock_ensure_tree, mock_setup_container,
mock_chown, mock_get_info, mock_clean):
self.flags(virt_type='lxc', uid_maps=["0:1000:100"],
gid_maps=["0:1000:100"], group='libvirt')
def chown_side_effect(path, id_maps):
self.assertEqual('/tmp/rootfs', path)
self.assertIsInstance(id_maps[0], vconfig.LibvirtConfigGuestUIDMap)
self.assertEqual(0, id_maps[0].start)
self.assertEqual(1000, id_maps[0].target)
self.assertEqual(100, id_maps[0].count)
self.assertIsInstance(id_maps[1], vconfig.LibvirtConfigGuestGIDMap)
self.assertEqual(0, id_maps[1].start)
self.assertEqual(1000, id_maps[1].target)
self.assertEqual(100, id_maps[1].count)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
mock_instance = mock.MagicMock()
inst_sys_meta = dict()
mock_instance.system_metadata = inst_sys_meta
mock_get_inst_path.return_value = '/tmp/'
mock_image_backend = mock.MagicMock()
drvr.image_backend = mock_image_backend
mock_image = mock.MagicMock()
mock_image.path = '/tmp/test.img'
drvr.image_backend.by_name.return_value = mock_image
mock_setup_container.return_value = '/dev/nbd0'
mock_chown.side_effect = chown_side_effect
mock_get_info.return_value = hardware.InstanceInfo(
state=power_state.RUNNING)
with test.nested(
mock.patch.object(drvr, '_is_booted_from_volume',
return_value=False),
mock.patch.object(drvr, '_create_domain'),
mock.patch.object(drvr, 'plug_vifs'),
mock.patch.object(drvr.firewall_driver, 'setup_basic_filtering'),
mock.patch.object(drvr.firewall_driver, 'prepare_instance_filter'),
mock.patch.object(drvr.firewall_driver, 'apply_instance_filter')
) as (
mock_is_booted_from_volume, mock_create_domain, mock_plug_vifs,
mock_setup_basic_filtering, mock_prepare_instance_filter,
mock_apply_instance_filter
):
drvr._create_domain_and_network(self.context, 'xml',
mock_instance, [])
self.assertEqual('/dev/nbd0', inst_sys_meta['rootfs_device_name'])
self.assertFalse(mock_instance.called)
mock_get_inst_path.assert_has_calls([mock.call(mock_instance)])
mock_ensure_tree.assert_has_calls([mock.call('/tmp/rootfs')])
drvr.image_backend.by_name.assert_has_calls([mock.call(mock_instance,
'disk')])
setup_container_call = mock.call(
mock_image.get_model(),
container_dir='/tmp/rootfs')
mock_setup_container.assert_has_calls([setup_container_call])
mock_get_info.assert_has_calls([mock.call(mock_instance)])
mock_clean.assert_has_calls([mock.call(container_dir='/tmp/rootfs')])
@mock.patch('nova.virt.disk.api.teardown_container')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.get_info')
@mock.patch('nova.virt.disk.api.setup_container')
@mock.patch('oslo_utils.fileutils.ensure_tree')
@mock.patch('nova.virt.libvirt.utils.get_instance_path')
def test_create_domain_lxc_not_running(self, mock_get_inst_path,
mock_ensure_tree,
mock_setup_container,
mock_get_info, mock_teardown):
self.flags(virt_type='lxc', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
mock_instance = mock.MagicMock()
inst_sys_meta = dict()
mock_instance.system_metadata = inst_sys_meta
mock_get_inst_path.return_value = '/tmp/'
mock_image_backend = mock.MagicMock()
drvr.image_backend = mock_image_backend
mock_image = mock.MagicMock()
mock_image.path = '/tmp/test.img'
drvr.image_backend.by_name.return_value = mock_image
mock_setup_container.return_value = '/dev/nbd0'
mock_get_info.return_value = hardware.InstanceInfo(
state=power_state.SHUTDOWN)
with test.nested(
mock.patch.object(drvr, '_is_booted_from_volume',
return_value=False),
mock.patch.object(drvr, '_create_domain'),
mock.patch.object(drvr, 'plug_vifs'),
mock.patch.object(drvr.firewall_driver, 'setup_basic_filtering'),
mock.patch.object(drvr.firewall_driver, 'prepare_instance_filter'),
mock.patch.object(drvr.firewall_driver, 'apply_instance_filter')):
drvr._create_domain_and_network(self.context, 'xml',
mock_instance, [])
self.assertEqual('/dev/nbd0', inst_sys_meta['rootfs_device_name'])
self.assertFalse(mock_instance.called)
mock_get_inst_path.assert_has_calls([mock.call(mock_instance)])
mock_ensure_tree.assert_has_calls([mock.call('/tmp/rootfs')])
drvr.image_backend.by_name.assert_has_calls([mock.call(mock_instance,
'disk')])
setup_container_call = mock.call(
mock_image.get_model(),
container_dir='/tmp/rootfs')
mock_setup_container.assert_has_calls([setup_container_call])
mock_get_info.assert_has_calls([mock.call(mock_instance)])
teardown_call = mock.call(container_dir='/tmp/rootfs')
mock_teardown.assert_has_calls([teardown_call])
def test_create_domain_define_xml_fails(self):
"""Tests that the xml is logged when defining the domain fails."""
fake_xml = "<test>this is a test</test>"
def fake_defineXML(xml):
# In py2 env, xml is encoded in write_instance_config use
# encodeutils.safe_encode, it will be decode text before encoding
if six.PY2:
self.assertEqual(fake_safe_decode(fake_xml), xml)
else:
self.assertEqual(fake_xml, xml)
raise fakelibvirt.libvirtError('virDomainDefineXML() failed')
def fake_safe_decode(text, *args, **kwargs):
return text + 'safe decoded'
self.log_error_called = False
def fake_error(msg, *args, **kwargs):
self.log_error_called = True
self.assertIn(fake_xml, msg % args)
self.assertIn('safe decoded', msg % args)
self.stub_out('oslo_utils.encodeutils.safe_decode', fake_safe_decode)
self.stub_out('nova.virt.libvirt.guest.LOG.error', fake_error)
self.create_fake_libvirt_mock(defineXML=fake_defineXML)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertRaises(fakelibvirt.libvirtError, drvr._create_domain,
fake_xml)
self.assertTrue(self.log_error_called)
def test_create_domain_with_flags_fails(self):
"""Tests that the xml is logged when creating the domain with flags
fails
"""
fake_xml = "<test>this is a test</test>"
fake_domain = FakeVirtDomain(fake_xml)
def fake_createWithFlags(self, launch_flags):
raise fakelibvirt.libvirtError('virDomainCreateWithFlags() failed')
self.log_error_called = False
def fake_error(msg, *args, **kwargs):
self.log_error_called = True
self.assertIn(fake_xml, msg % args)
self.stub_out('nova.tests.unit.virt.libvirt.test_driver.'
'FakeVirtDomain.createWithFlags', fake_createWithFlags)
self.stub_out('nova.virt.libvirt.guest.LOG.error', fake_error)
self.create_fake_libvirt_mock()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertRaises(fakelibvirt.libvirtError, drvr._create_domain,
domain=fake_domain)
self.assertTrue(self.log_error_called)
@mock.patch('nova.privsep.libvirt.enable_hairpin')
def test_create_domain_enable_hairpin_fails(self, mock_writefile):
"""Tests that the xml is logged when enabling hairpin mode for the
domain fails.
"""
# Guest.enable_hairpin is only called for nova-network.
# TODO(mikal): remove this test when nova-net goes away
self.flags(use_neutron=False)
fake_xml = "<test>this is a test</test>"
fake_domain = FakeVirtDomain(fake_xml)
mock_writefile.side_effect = IOError
def fake_get_interfaces(*args):
return ["dev"]
self.log_error_called = False
def fake_error(msg, *args, **kwargs):
self.log_error_called = True
self.assertIn(fake_xml, msg % args)
self.stub_out('nova.virt.libvirt.guest.LOG.error', fake_error)
self.create_fake_libvirt_mock()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.stub_out(
'nova.virt.libvirt.guest.Guest.get_interfaces',
fake_get_interfaces)
self.assertRaises(IOError, drvr._create_domain, domain=fake_domain,
power_on=False)
self.assertTrue(self.log_error_called)
def test_get_vnc_console(self):
instance = objects.Instance(**self.test_instance)
dummyxml = ("<domain type='kvm'><name>instance-0000000a</name>"
"<devices>"
"<graphics type='vnc' port='5900'/>"
"</devices></domain>")
vdmock = mock.create_autospec(fakelibvirt.virDomain)
vdmock.XMLDesc.return_value = dummyxml
def fake_lookup(_uuid):
if _uuid == instance['uuid']:
return vdmock
self.create_fake_libvirt_mock(lookupByUUIDString=fake_lookup)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
vnc_dict = drvr.get_vnc_console(self.context, instance)
self.assertEqual(vnc_dict.port, '5900')
vdmock.XMLDesc.assert_called_once_with(flags=0)
def test_get_vnc_console_unavailable(self):
instance = objects.Instance(**self.test_instance)
dummyxml = ("<domain type='kvm'><name>instance-0000000a</name>"
"<devices></devices></domain>")
vdmock = mock.create_autospec(fakelibvirt.virDomain)
vdmock.XMLDesc.return_value = dummyxml
def fake_lookup(_uuid):
if _uuid == instance['uuid']:
return vdmock
self.create_fake_libvirt_mock(lookupByUUIDString=fake_lookup)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertRaises(exception.ConsoleTypeUnavailable,
drvr.get_vnc_console, self.context, instance)
vdmock.XMLDesc.assert_called_once_with(flags=0)
def test_get_spice_console(self):
instance = objects.Instance(**self.test_instance)
dummyxml = ("<domain type='kvm'><name>instance-0000000a</name>"
"<devices>"
"<graphics type='spice' port='5950'/>"
"</devices></domain>")
vdmock = mock.create_autospec(fakelibvirt.virDomain)
vdmock.XMLDesc.return_value = dummyxml
def fake_lookup(_uuid):
if _uuid == instance['uuid']:
return vdmock
self.create_fake_libvirt_mock(lookupByUUIDString=fake_lookup)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
spice_dict = drvr.get_spice_console(self.context, instance)
self.assertEqual(spice_dict.port, '5950')
vdmock.XMLDesc.assert_called_once_with(flags=0)
def test_get_spice_console_unavailable(self):
instance = objects.Instance(**self.test_instance)
dummyxml = ("<domain type='kvm'><name>instance-0000000a</name>"
"<devices></devices></domain>")
vdmock = mock.create_autospec(fakelibvirt.virDomain)
vdmock.XMLDesc.return_value = dummyxml
def fake_lookup(_uuid):
if _uuid == instance['uuid']:
return vdmock
self.create_fake_libvirt_mock(lookupByUUIDString=fake_lookup)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertRaises(exception.ConsoleTypeUnavailable,
drvr.get_spice_console, self.context, instance)
vdmock.XMLDesc.assert_called_once_with(flags=0)
def test_detach_volume_with_instance_not_found(self):
# Test that detach_volume() method does not raise exception,
# if the instance does not exist.
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with test.nested(
mock.patch.object(host.Host, '_get_domain',
side_effect=exception.InstanceNotFound(
instance_id=instance.uuid)),
mock.patch.object(drvr, '_disconnect_volume')
) as (_get_domain, _disconnect_volume):
connection_info = {'driver_volume_type': 'fake'}
drvr.detach_volume(
self.context, connection_info, instance, '/dev/sda')
_get_domain.assert_called_once_with(instance)
_disconnect_volume.assert_called_once_with(
self.context, connection_info, instance, encryption=None)
def _test_attach_detach_interface_get_config(self, method_name):
"""Tests that the get_config() method is properly called in
attach_interface() and detach_interface().
method_name: either \"attach_interface\" or \"detach_interface\"
depending on the method to test.
"""
self.stub_out('nova.virt.libvirt.host.Host._get_domain',
lambda self, instance: FakeVirtDomain())
instance = objects.Instance(**self.test_instance)
network_info = _fake_network_info(self, 1)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
fake_image_meta = objects.ImageMeta.from_dict(
{'id': instance['image_ref']})
if method_name == "attach_interface":
mock_setup = self.useFixture(fixtures.MockPatchObject(
drvr.firewall_driver, 'setup_basic_filtering')).mock
mock_build = self.useFixture(fixtures.MockPatchObject(
drvr, '_build_device_metadata')).mock
mock_build.return_value = objects.InstanceDeviceMetadata()
mock_save = self.useFixture(fixtures.MockPatchObject(
objects.Instance, 'save')).mock
expected = drvr.vif_driver.get_config(instance, network_info[0],
fake_image_meta,
instance.get_flavor(),
CONF.libvirt.virt_type,
drvr._host)
mock_get_config = self.useFixture(fixtures.MockPatchObject(
drvr.vif_driver, 'get_config')).mock
mock_get_config.return_value = expected
if method_name == "attach_interface":
drvr.attach_interface(self.context, instance, fake_image_meta,
network_info[0])
mock_setup.assert_called_once_with(instance, network_info)
mock_build.assert_called_once_with(self.context, instance)
mock_save.assert_called_once_with()
elif method_name == "detach_interface":
drvr.detach_interface(self.context, instance, network_info[0])
else:
raise ValueError("Unhandled method %s" % method_name)
mock_get_config.assert_called_once_with(
instance, network_info[0], test.MatchType(objects.ImageMeta),
test.MatchType(objects.Flavor), CONF.libvirt.virt_type, drvr._host)
@mock.patch.object(lockutils, "external_lock")
def test_attach_interface_get_config(self, mock_lock):
"""Tests that the get_config() method is properly called in
attach_interface().
"""
mock_lock.return_value = threading.Semaphore()
self._test_attach_detach_interface_get_config("attach_interface")
def test_detach_interface_get_config(self):
"""Tests that the get_config() method is properly called in
detach_interface().
"""
self._test_attach_detach_interface_get_config("detach_interface")
@mock.patch.object(blockinfo, 'get_root_info')
@mock.patch.object(blockinfo, 'get_disk_bus_for_device_type')
def test_default_root_device_name(self, mock_get_disk, mock_get_root):
instance = {'uuid': 'fake_instance'}
image_meta = objects.ImageMeta.from_dict({'id': uuids.image_id})
root_bdm = {'source_type': 'image',
'destination_type': 'volume',
'image_id': 'fake_id'}
self.flags(virt_type='qemu', group='libvirt')
mock_get_disk.side_effect = ['virtio', 'ide']
mock_get_root.return_value = {'dev': 'vda'}
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertEqual(drvr.default_root_device_name(instance, image_meta,
root_bdm), '/dev/vda')
self.assertEqual(2, mock_get_disk.call_count)
mock_get_disk.assert_has_calls([
mock.call(instance, 'qemu', image_meta, 'disk'),
mock.call(instance, 'qemu', image_meta, 'cdrom')])
mock_get_root.assert_called_once_with(instance, 'qemu', image_meta,
root_bdm, 'virtio', 'ide')
@mock.patch.object(objects.BlockDeviceMapping, "save")
def test_default_device_names_for_instance(self, save_mock):
instance = objects.Instance(**self.test_instance)
instance.root_device_name = '/dev/vda'
ephemerals = [objects.BlockDeviceMapping(
**fake_block_device.AnonFakeDbBlockDeviceDict(
{'device_name': 'vdb',
'source_type': 'blank',
'volume_size': 2,
'destination_type': 'local'}))]
swap = [objects.BlockDeviceMapping(
**fake_block_device.AnonFakeDbBlockDeviceDict(
{'device_name': 'vdg',
'source_type': 'blank',
'volume_size': 512,
'guest_format': 'swap',
'destination_type': 'local'}))]
block_device_mapping = [
objects.BlockDeviceMapping(
**fake_block_device.AnonFakeDbBlockDeviceDict(
{'source_type': 'volume',
'destination_type': 'volume',
'volume_id': 'fake-image-id',
'device_name': '/dev/vdxx',
'disk_bus': 'scsi'}))]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr.default_device_names_for_instance(instance,
instance.root_device_name,
ephemerals, swap,
block_device_mapping)
# Ephemeral device name was correct so no changes
self.assertEqual('/dev/vdb', ephemerals[0].device_name)
# Swap device name was incorrect so it was changed
self.assertEqual('/dev/vdc', swap[0].device_name)
# Volume device name was changed too, taking the bus into account
self.assertEqual('/dev/sda', block_device_mapping[0].device_name)
self.assertEqual(3, save_mock.call_count)
def _test_get_device_name_for_instance(self, new_bdm, expected_dev):
instance = objects.Instance(**self.test_instance)
instance.root_device_name = '/dev/vda'
instance.ephemeral_gb = 0
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
got_dev = drvr.get_device_name_for_instance(
instance, [], new_bdm)
self.assertEqual(expected_dev, got_dev)
def test_get_device_name_for_instance_simple(self):
new_bdm = objects.BlockDeviceMapping(
context=context,
source_type='volume', destination_type='volume',
boot_index=-1, volume_id='fake-id',
device_name=None, guest_format=None,
disk_bus=None, device_type=None)
self._test_get_device_name_for_instance(new_bdm, '/dev/vdb')
def test_get_device_name_for_instance_suggested(self):
new_bdm = objects.BlockDeviceMapping(
context=context,
source_type='volume', destination_type='volume',
boot_index=-1, volume_id='fake-id',
device_name='/dev/vdg', guest_format=None,
disk_bus=None, device_type=None)
self._test_get_device_name_for_instance(new_bdm, '/dev/vdb')
def test_get_device_name_for_instance_bus(self):
new_bdm = objects.BlockDeviceMapping(
context=context,
source_type='volume', destination_type='volume',
boot_index=-1, volume_id='fake-id',
device_name=None, guest_format=None,
disk_bus='scsi', device_type=None)
self._test_get_device_name_for_instance(new_bdm, '/dev/sda')
def test_get_device_name_for_instance_device_type(self):
new_bdm = objects.BlockDeviceMapping(
context=context,
source_type='volume', destination_type='volume',
boot_index=-1, volume_id='fake-id',
device_name=None, guest_format=None,
disk_bus=None, device_type='floppy')
self._test_get_device_name_for_instance(new_bdm, '/dev/fda')
def test_is_supported_fs_format(self):
supported_fs = [nova.privsep.fs.FS_FORMAT_EXT2,
nova.privsep.fs.FS_FORMAT_EXT3,
nova.privsep.fs.FS_FORMAT_EXT4,
nova.privsep.fs.FS_FORMAT_XFS]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
for fs in supported_fs:
self.assertTrue(drvr.is_supported_fs_format(fs))
supported_fs = ['', 'dummy']
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
for fs in supported_fs:
self.assertFalse(drvr.is_supported_fs_format(fs))
@mock.patch("nova.objects.instance.Instance.image_meta",
new_callable=mock.PropertyMock())
@mock.patch("nova.virt.libvirt.driver.LibvirtDriver.attach_interface")
@mock.patch('nova.virt.libvirt.guest.Guest.get_interfaces')
@mock.patch('nova.virt.libvirt.host.Host.write_instance_config')
@mock.patch('nova.virt.libvirt.host.Host.get_guest')
def test_post_live_migration_at_destination(
self, mock_get_guest, mock_write_instance_config,
mock_get_interfaces, mock_attach, mock_image_meta):
instance = objects.Instance(id=1, uuid=uuids.instance)
dom = mock.MagicMock()
guest = libvirt_guest.Guest(dom)
mock_get_guest.return_value = guest
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
net_info = network_model.NetworkInfo()
mock_get_interfaces.return_type = []
drvr.post_live_migration_at_destination(mock.ANY, instance, net_info)
# Assert that we don't try to write anything to the destination node
# since the source live migrated with the VIR_MIGRATE_PERSIST_DEST flag
mock_write_instance_config.assert_not_called()
mock_attach.assert_not_called()
vif = network_model.VIF(id=uuids.port_id,
vnic_type=network_model.VNIC_TYPE_NORMAL)
vif_direct = network_model.VIF(id=uuids.port_id,
vnic_type=network_model.VNIC_TYPE_DIRECT)
net_info = network_model.NetworkInfo([vif, vif_direct])
mock_get_interfaces.return_type = [vif]
drvr.post_live_migration_at_destination(mock.ANY, instance, net_info)
mock_attach.assert_called_once_with(mock.ANY, instance,
mock_image_meta, vif_direct)
def test_create_propagates_exceptions(self):
self.flags(virt_type='lxc', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(id=1, uuid=uuids.instance,
image_ref='my_fake_image')
with test.nested(
mock.patch.object(drvr, '_create_domain_setup_lxc'),
mock.patch.object(drvr, '_create_domain_cleanup_lxc'),
mock.patch.object(drvr, '_is_booted_from_volume',
return_value=False),
mock.patch.object(drvr, 'plug_vifs'),
mock.patch.object(drvr, 'firewall_driver'),
mock.patch.object(drvr, '_create_domain',
side_effect=exception.NovaException),
mock.patch.object(drvr, 'cleanup')):
self.assertRaises(exception.NovaException,
drvr._create_domain_and_network,
self.context,
'xml',
instance, None)
def test_create_without_pause(self):
self.flags(virt_type='lxc', group='libvirt')
@contextlib.contextmanager
def fake_lxc_disk_handler(*args, **kwargs):
yield
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
with test.nested(
mock.patch.object(drvr, '_lxc_disk_handler',
side_effect=fake_lxc_disk_handler),
mock.patch.object(drvr, 'plug_vifs'),
mock.patch.object(drvr, 'firewall_driver'),
mock.patch.object(drvr, '_create_domain'),
mock.patch.object(drvr, 'cleanup')) as (
_handler, cleanup, firewall_driver, create, plug_vifs):
domain = drvr._create_domain_and_network(self.context, 'xml',
instance, None)
self.assertEqual(0, create.call_args_list[0][1]['pause'])
self.assertEqual(0, domain.resume.call_count)
def _test_create_with_network_events(self, neutron_failure=None,
power_on=True):
generated_events = []
def wait_timeout():
event = mock.MagicMock()
if neutron_failure == 'timeout':
raise eventlet.timeout.Timeout()
elif neutron_failure == 'error':
event.status = 'failed'
else:
event.status = 'completed'
return event
def fake_prepare(instance, name, tag):
m = mock.MagicMock()
m.instance = instance
m.event_name = '%s-%s' % (name, tag)
m.wait.side_effect = wait_timeout
generated_events.append(m)
return m
virtapi = manager.ComputeVirtAPI(mock.MagicMock())
prepare = virtapi._compute.instance_events.prepare_for_instance_event
prepare.side_effect = fake_prepare
drvr = libvirt_driver.LibvirtDriver(virtapi, False)
instance = objects.Instance(vm_state=vm_states.BUILDING,
**self.test_instance)
vifs = [{'id': uuids.vif_1, 'active': False},
{'id': uuids.vif_2, 'active': False}]
@mock.patch.object(drvr, 'plug_vifs')
@mock.patch.object(drvr, 'firewall_driver')
@mock.patch.object(drvr, '_create_domain')
@mock.patch.object(drvr, 'cleanup')
def test_create(cleanup, create, fw_driver, plug_vifs):
domain = drvr._create_domain_and_network(self.context, 'xml',
instance, vifs,
power_on=power_on)
plug_vifs.assert_called_with(instance, vifs)
pause = self._get_pause_flag(drvr, vifs, power_on=power_on)
self.assertEqual(pause,
create.call_args_list[0][1]['pause'])
if pause:
domain.resume.assert_called_once_with()
if neutron_failure and CONF.vif_plugging_is_fatal:
cleanup.assert_called_once_with(self.context,
instance, network_info=vifs,
block_device_info=None)
test_create()
if utils.is_neutron() and CONF.vif_plugging_timeout and power_on:
prepare.assert_has_calls([
mock.call(instance, 'network-vif-plugged', uuids.vif_1),
mock.call(instance, 'network-vif-plugged', uuids.vif_2)])
for event in generated_events:
if neutron_failure and generated_events.index(event) != 0:
self.assertEqual(0, event.call_count)
elif (neutron_failure == 'error' and
not CONF.vif_plugging_is_fatal):
event.wait.assert_called_once_with()
else:
self.assertEqual(0, prepare.call_count)
@mock.patch('nova.utils.is_neutron', return_value=True)
def test_create_with_network_events_neutron(self, is_neutron):
self._test_create_with_network_events()
@mock.patch('nova.utils.is_neutron', return_value=True)
def test_create_with_network_events_neutron_power_off(self,
is_neutron):
# Tests that we don't wait for events if we don't start the instance.
self._test_create_with_network_events(power_on=False)
@mock.patch('nova.utils.is_neutron', return_value=True)
def test_create_with_network_events_neutron_nowait(self, is_neutron):
self.flags(vif_plugging_timeout=0)
self._test_create_with_network_events()
@mock.patch('nova.utils.is_neutron', return_value=True)
def test_create_with_network_events_neutron_failed_nonfatal_timeout(
self, is_neutron):
self.flags(vif_plugging_is_fatal=False)
self._test_create_with_network_events(neutron_failure='timeout')
@mock.patch('nova.utils.is_neutron', return_value=True)
def test_create_with_network_events_neutron_failed_fatal_timeout(
self, is_neutron):
self.assertRaises(exception.VirtualInterfaceCreateException,
self._test_create_with_network_events,
neutron_failure='timeout')
@mock.patch('nova.utils.is_neutron', return_value=True)
def test_create_with_network_events_neutron_failed_nonfatal_error(
self, is_neutron):
self.flags(vif_plugging_is_fatal=False)
self._test_create_with_network_events(neutron_failure='error')
@mock.patch('nova.utils.is_neutron', return_value=True)
def test_create_with_network_events_neutron_failed_fatal_error(
self, is_neutron):
self.assertRaises(exception.VirtualInterfaceCreateException,
self._test_create_with_network_events,
neutron_failure='error')
@mock.patch('nova.utils.is_neutron', return_value=False)
def test_create_with_network_events_non_neutron(self, is_neutron):
self._test_create_with_network_events()
def test_create_with_other_error(self):
drvr = libvirt_driver.LibvirtDriver(mock.MagicMock(), False)
@mock.patch.object(drvr, 'plug_vifs')
@mock.patch.object(drvr, 'firewall_driver')
@mock.patch.object(drvr, '_create_domain')
@mock.patch.object(drvr, '_cleanup_failed_start')
def the_test(mock_cleanup, mock_create, mock_fw, mock_plug):
instance = objects.Instance(**self.test_instance)
mock_create.side_effect = test.TestingException
self.assertRaises(test.TestingException,
drvr._create_domain_and_network,
self.context, 'xml', instance, [], None)
mock_cleanup.assert_called_once_with(self.context, instance,
[], None, None, False)
# destroy_disks_on_failure=True, used only by spawn()
mock_cleanup.reset_mock()
self.assertRaises(test.TestingException,
drvr._create_domain_and_network,
self.context, 'xml', instance, [], None,
destroy_disks_on_failure=True)
mock_cleanup.assert_called_once_with(self.context, instance,
[], None, None, True)
the_test()
def test_cleanup_failed_start_no_guest(self):
drvr = libvirt_driver.LibvirtDriver(mock.MagicMock(), False)
with mock.patch.object(drvr, 'cleanup') as mock_cleanup:
drvr._cleanup_failed_start(None, None, None, None, None, False)
self.assertTrue(mock_cleanup.called)
def test_cleanup_failed_start_inactive_guest(self):
drvr = libvirt_driver.LibvirtDriver(mock.MagicMock(), False)
guest = mock.MagicMock()
guest.is_active.return_value = False
with mock.patch.object(drvr, 'cleanup') as mock_cleanup:
drvr._cleanup_failed_start(None, None, None, None, guest, False)
self.assertTrue(mock_cleanup.called)
self.assertFalse(guest.poweroff.called)
def test_cleanup_failed_start_active_guest(self):
drvr = libvirt_driver.LibvirtDriver(mock.MagicMock(), False)
guest = mock.MagicMock()
guest.is_active.return_value = True
with mock.patch.object(drvr, 'cleanup') as mock_cleanup:
drvr._cleanup_failed_start(None, None, None, None, guest, False)
self.assertTrue(mock_cleanup.called)
self.assertTrue(guest.poweroff.called)
def test_cleanup_failed_start_failed_poweroff(self):
drvr = libvirt_driver.LibvirtDriver(mock.MagicMock(), False)
guest = mock.MagicMock()
guest.is_active.return_value = True
guest.poweroff.side_effect = test.TestingException
with mock.patch.object(drvr, 'cleanup') as mock_cleanup:
self.assertRaises(test.TestingException,
drvr._cleanup_failed_start,
None, None, None, None, guest, False)
self.assertTrue(mock_cleanup.called)
self.assertTrue(guest.poweroff.called)
def test_cleanup_failed_start_failed_poweroff_destroy_disks(self):
drvr = libvirt_driver.LibvirtDriver(mock.MagicMock(), False)
guest = mock.MagicMock()
guest.is_active.return_value = True
guest.poweroff.side_effect = test.TestingException
with mock.patch.object(drvr, 'cleanup') as mock_cleanup:
self.assertRaises(test.TestingException,
drvr._cleanup_failed_start,
None, None, None, None, guest, True)
mock_cleanup.called_once_with(None, None, network_info=None,
block_device_info=None, destroy_disks=True)
self.assertTrue(guest.poweroff.called)
@mock.patch('os_brick.encryptors.get_encryption_metadata')
@mock.patch('nova.virt.libvirt.blockinfo.get_info_from_bdm')
def test_create_with_bdm(self, get_info_from_bdm, get_encryption_metadata):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
mock_dom = mock.MagicMock()
mock_encryption_meta = mock.MagicMock()
get_encryption_metadata.return_value = mock_encryption_meta
fake_xml = """
<domain>
<name>instance-00000001</name>
<memory>1048576</memory>
<vcpu>1</vcpu>
<devices>
<disk type='file' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<source file='/path/fake-volume1'/>
<target dev='vda' bus='virtio'/>
</disk>
</devices>
</domain>
"""
fake_volume_id = "fake-volume-id"
connection_info = {"driver_volume_type": "fake",
"data": {"access_mode": "rw",
"volume_id": fake_volume_id}}
def fake_getitem(*args, **kwargs):
fake_bdm = {'connection_info': connection_info,
'mount_device': '/dev/vda'}
return fake_bdm.get(args[0])
mock_volume = mock.MagicMock()
mock_volume.__getitem__.side_effect = fake_getitem
block_device_info = {'block_device_mapping': [mock_volume]}
network_info = [network_model.VIF(id='1'),
network_model.VIF(id='2', active=True)]
with test.nested(
mock.patch.object(drvr, 'plug_vifs'),
mock.patch.object(drvr.firewall_driver, 'setup_basic_filtering'),
mock.patch.object(drvr.firewall_driver,
'prepare_instance_filter'),
mock.patch.object(drvr, '_create_domain'),
mock.patch.object(drvr.firewall_driver, 'apply_instance_filter'),
) as (plug_vifs, setup_basic_filtering, prepare_instance_filter,
create_domain, apply_instance_filter):
create_domain.return_value = libvirt_guest.Guest(mock_dom)
guest = drvr._create_domain_and_network(
self.context, fake_xml, instance, network_info,
block_device_info=block_device_info)
plug_vifs.assert_called_once_with(instance, network_info)
setup_basic_filtering.assert_called_once_with(instance,
network_info)
prepare_instance_filter.assert_called_once_with(instance,
network_info)
pause = self._get_pause_flag(drvr, network_info)
create_domain.assert_called_once_with(
fake_xml, pause=pause, power_on=True, post_xml_callback=None)
self.assertEqual(mock_dom, guest._domain)
def test_get_guest_storage_config(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
test_instance = copy.deepcopy(self.test_instance)
test_instance["default_swap_device"] = None
instance = objects.Instance(**test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
flavor = instance.get_flavor()
conn_info = {'driver_volume_type': 'fake', 'data': {}}
bdm = objects.BlockDeviceMapping(
self.context,
**fake_block_device.FakeDbBlockDeviceDict({
'id': 1,
'source_type': 'volume',
'destination_type': 'volume',
'device_name': '/dev/vdc'}))
bdi = {'block_device_mapping':
driver_block_device.convert_volumes([bdm])}
bdm = bdi['block_device_mapping'][0]
bdm['connection_info'] = conn_info
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance,
image_meta,
bdi)
mock_conf = mock.MagicMock(source_path='fake')
with test.nested(
mock.patch.object(driver_block_device.DriverVolumeBlockDevice,
'save'),
mock.patch.object(drvr, '_connect_volume'),
mock.patch.object(drvr, '_get_volume_config',
return_value=mock_conf)
) as (volume_save, connect_volume, get_volume_config):
devices = drvr._get_guest_storage_config(self.context, instance,
image_meta, disk_info, False, bdi, flavor, "hvm")
self.assertEqual(3, len(devices))
self.assertEqual('/dev/vdb', instance.default_ephemeral_device)
self.assertIsNone(instance.default_swap_device)
connect_volume.assert_called_with(self.context,
bdm['connection_info'], instance)
get_volume_config.assert_called_with(bdm['connection_info'],
{'bus': 'virtio', 'type': 'disk', 'dev': 'vdc'})
volume_save.assert_called_once_with()
def test_get_neutron_events(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
network_info = [network_model.VIF(id='1'),
network_model.VIF(id='2', active=True)]
events = drvr._get_neutron_events(network_info)
self.assertEqual([('network-vif-plugged', '1')], events)
def test_unplug_vifs_ignores_errors(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
with mock.patch.object(drvr, 'vif_driver') as vif_driver:
vif_driver.unplug.side_effect = exception.AgentError(
method='unplug')
drvr._unplug_vifs('inst', [1], ignore_errors=True)
vif_driver.unplug.assert_called_once_with('inst', 1)
def test_unplug_vifs_reports_errors(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
with mock.patch.object(drvr, 'vif_driver') as vif_driver:
vif_driver.unplug.side_effect = exception.AgentError(
method='unplug')
self.assertRaises(exception.AgentError,
drvr.unplug_vifs, 'inst', [1])
vif_driver.unplug.assert_called_once_with('inst', 1)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._unplug_vifs')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._undefine_domain')
def test_cleanup_pass_with_no_mount_device(self, undefine, unplug):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
drvr.firewall_driver = mock.Mock()
drvr._disconnect_volume = mock.Mock()
fake_inst = {'name': 'foo'}
fake_bdms = [{'connection_info': 'foo',
'mount_device': None}]
with mock.patch('nova.virt.driver'
'.block_device_info_get_mapping',
return_value=fake_bdms):
drvr.cleanup('ctxt', fake_inst, 'netinfo', destroy_disks=False)
self.assertTrue(drvr._disconnect_volume.called)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._unplug_vifs')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._undefine_domain')
def test_cleanup_wants_vif_errors_ignored(self, undefine, unplug):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
fake_inst = {'name': 'foo'}
with mock.patch.object(drvr._conn, 'lookupByUUIDString') as lookup:
lookup.return_value = fake_inst
# NOTE(danms): Make unplug cause us to bail early, since
# we only care about how it was called
unplug.side_effect = test.TestingException
self.assertRaises(test.TestingException,
drvr.cleanup, 'ctxt', fake_inst, 'netinfo')
unplug.assert_called_once_with(fake_inst, 'netinfo', True)
@mock.patch.object(libvirt_driver.LibvirtDriver, 'unfilter_instance')
@mock.patch.object(libvirt_driver.LibvirtDriver, 'delete_instance_files',
return_value=True)
@mock.patch.object(objects.Instance, 'save')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_undefine_domain')
def test_cleanup_migrate_data_shared_block_storage(self,
_undefine_domain,
save,
delete_instance_files,
unfilter_instance):
# Tests the cleanup method when migrate_data has
# is_shared_block_storage=True and destroy_disks=False.
instance = objects.Instance(self.context, **self.test_instance)
migrate_data = objects.LibvirtLiveMigrateData(
is_shared_block_storage=True)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
drvr.cleanup(
self.context, instance, network_info={}, destroy_disks=False,
migrate_data=migrate_data, destroy_vifs=False)
delete_instance_files.assert_called_once_with(instance)
self.assertEqual(1, int(instance.system_metadata['clean_attempts']))
self.assertTrue(instance.cleaned)
save.assert_called_once_with()
@mock.patch.object(libvirt_driver.LibvirtDriver, 'unfilter_instance')
@mock.patch.object(libvirt_driver.LibvirtDriver, 'delete_instance_files',
return_value=True)
@mock.patch.object(objects.Instance, 'save')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_undefine_domain')
def test_cleanup_instance_dir_with_rbd_workaround(self,
_undefine_domain, save, delete_instance_files, unfilter_instance):
self.flags(images_type='rbd', group='libvirt')
self.flags(ensure_libvirt_rbd_instance_dir_cleanup=True,
group='workarounds')
instance = objects.Instance(self.context, **self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
# destroy_disks=False here as check_instance_shared_storage_local call
# would return None when using the rbd imagebackend
drvr.cleanup(self.context, instance, network_info={},
destroy_disks=False)
delete_instance_files.assert_called_once_with(instance)
self.assertEqual(1, int(instance.system_metadata['clean_attempts']))
self.assertTrue(instance.cleaned)
save.assert_called_once_with()
@mock.patch.object(libvirt_driver.LibvirtDriver, '_get_volume_encryption')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_use_native_luks')
def test_swap_volume_native_luks_blocked(self, mock_use_native_luks,
mock_get_encryption):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
mock_use_native_luks.return_value = True
# dest volume is encrypted
mock_get_encryption.side_effect = [{}, {'provider': 'luks'}]
self.assertRaises(NotImplementedError, drvr.swap_volume, self.context,
{}, {}, None, None, None)
# src volume is encrypted
mock_get_encryption.side_effect = [{'provider': 'luks'}, {}]
self.assertRaises(NotImplementedError, drvr.swap_volume, self.context,
{}, {}, None, None, None)
# both volumes are encrypted
mock_get_encryption.side_effect = [{'provider': 'luks'},
{'provider': 'luks'}]
self.assertRaises(NotImplementedError, drvr.swap_volume, self.context,
{}, {}, None, None, None)
@mock.patch('nova.virt.libvirt.guest.BlockDevice.is_job_complete',
return_value=True)
def _test_swap_volume(self, mock_is_job_complete, source_type,
resize=False, fail=False):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
mock_dom = mock.MagicMock()
guest = libvirt_guest.Guest(mock_dom)
with mock.patch.object(drvr._conn, 'defineXML',
create=True) as mock_define:
srcfile = "/first/path"
dstfile = "/second/path"
orig_xml = six.text_type(mock.sentinel.orig_xml)
new_xml = six.text_type(mock.sentinel.new_xml)
mock_dom.XMLDesc.return_value = orig_xml
mock_dom.isPersistent.return_value = True
def fake_rebase_success(*args, **kwargs):
# Make sure the XML is set after the rebase so we know
# get_xml_desc was called after the update.
mock_dom.XMLDesc.return_value = new_xml
if not fail:
mock_dom.blockRebase.side_effect = fake_rebase_success
# If the swap succeeds, make sure we use the new XML to
# redefine the domain.
expected_xml = new_xml
else:
if resize:
mock_dom.blockResize.side_effect = test.TestingException()
expected_exception = test.TestingException
else:
mock_dom.blockRebase.side_effect = test.TestingException()
expected_exception = exception.VolumeRebaseFailed
# If the swap fails, make sure we use the original domain XML
# to redefine the domain.
expected_xml = orig_xml
# Run the swap volume code.
mock_conf = mock.MagicMock(source_type=source_type,
source_path=dstfile)
if not fail:
drvr._swap_volume(guest, srcfile, mock_conf, 1)
else:
self.assertRaises(expected_exception, drvr._swap_volume, guest,
srcfile, mock_conf, 1)
# Verify we read the original persistent config.
expected_call_count = 1
expected_calls = [mock.call(
flags=(fakelibvirt.VIR_DOMAIN_XML_INACTIVE |
fakelibvirt.VIR_DOMAIN_XML_SECURE))]
if not fail:
# Verify we read the updated live config.
expected_call_count = 2
expected_calls.append(
mock.call(flags=fakelibvirt.VIR_DOMAIN_XML_SECURE))
self.assertEqual(expected_call_count, mock_dom.XMLDesc.call_count)
mock_dom.XMLDesc.assert_has_calls(expected_calls)
# Verify we called with the correct flags.
expected_flags = (fakelibvirt.VIR_DOMAIN_BLOCK_REBASE_COPY |
fakelibvirt.VIR_DOMAIN_BLOCK_REBASE_REUSE_EXT)
if source_type == 'block':
expected_flags = (expected_flags |
fakelibvirt.VIR_DOMAIN_BLOCK_REBASE_COPY_DEV)
mock_dom.blockRebase.assert_called_once_with(srcfile, dstfile, 0,
flags=expected_flags)
# Verify we defined the expected XML.
mock_define.assert_called_once_with(expected_xml)
# Verify we called resize with the correct args.
if resize:
mock_dom.blockResize.assert_called_once_with(
srcfile, 1 * units.Gi / units.Ki)
def test_swap_volume_file(self):
self._test_swap_volume('file')
def test_swap_volume_block(self):
"""If the swapped volume is type="block", make sure that we give
libvirt the correct VIR_DOMAIN_BLOCK_REBASE_COPY_DEV flag to ensure the
correct type="block" XML is generated (bug 1691195)
"""
self._test_swap_volume('block')
def test_swap_volume_rebase_fail(self):
self._test_swap_volume('block', fail=True)
def test_swap_volume_resize_fail(self):
self._test_swap_volume('file', resize=True, fail=True)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._disconnect_volume')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._swap_volume')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_config')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._connect_volume')
@mock.patch('nova.virt.libvirt.host.Host.get_guest')
def test_swap_volume(self, get_guest, connect_volume, get_volume_config,
swap_volume, disconnect_volume):
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
instance = objects.Instance(**self.test_instance)
old_connection_info = {'driver_volume_type': 'fake',
'serial': 'old-volume-id',
'data': {'device_path': '/fake-old-volume',
'access_mode': 'rw'}}
new_connection_info = {'driver_volume_type': 'fake',
'serial': 'new-volume-id',
'data': {'device_path': '/fake-new-volume',
'access_mode': 'rw'}}
mock_dom = mock.MagicMock()
guest = libvirt_guest.Guest(mock_dom)
mock_dom.XMLDesc.return_value = """<domain>
<devices>
<disk type='file'>
<source file='/fake-old-volume'/>
<target dev='vdb' bus='virtio'/>
</disk>
</devices>
</domain>
"""
mock_dom.name.return_value = 'inst'
mock_dom.UUIDString.return_value = 'uuid'
get_guest.return_value = guest
conf = mock.MagicMock(source_path='/fake-new-volume')
get_volume_config.return_value = conf
conn.swap_volume(self.context, old_connection_info,
new_connection_info, instance, '/dev/vdb', 1)
get_guest.assert_called_once_with(instance)
connect_volume.assert_called_once_with(self.context,
new_connection_info, instance)
swap_volume.assert_called_once_with(guest, 'vdb', conf, 1)
disconnect_volume.assert_called_once_with(self.context,
old_connection_info,
instance)
@mock.patch.object(libvirt_driver.LibvirtDriver, '_get_volume_encryption')
@mock.patch('nova.virt.libvirt.guest.BlockDevice.rebase')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._disconnect_volume')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._connect_volume')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_config')
@mock.patch('nova.virt.libvirt.guest.Guest.get_disk')
@mock.patch('nova.virt.libvirt.host.Host.get_guest')
@mock.patch('nova.virt.libvirt.host.Host.write_instance_config')
def test_swap_volume_disconnect_new_volume_on_rebase_error(self,
write_config, get_guest, get_disk, get_volume_config,
connect_volume, disconnect_volume, rebase, get_volume_encryption):
"""Assert that disconnect_volume is called for the new volume if an
error is encountered while rebasing
"""
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
instance = objects.Instance(**self.test_instance)
guest = libvirt_guest.Guest(mock.MagicMock())
get_guest.return_value = guest
get_volume_encryption.return_value = {}
exc = fakelibvirt.make_libvirtError(fakelibvirt.libvirtError,
'internal error', error_code=fakelibvirt.VIR_ERR_INTERNAL_ERROR)
rebase.side_effect = exc
self.assertRaises(exception.VolumeRebaseFailed, conn.swap_volume,
self.context, mock.sentinel.old_connection_info,
mock.sentinel.new_connection_info,
instance, '/dev/vdb', 0)
connect_volume.assert_called_once_with(self.context,
mock.sentinel.new_connection_info, instance)
disconnect_volume.assert_called_once_with(self.context,
mock.sentinel.new_connection_info, instance)
@mock.patch.object(libvirt_driver.LibvirtDriver, '_get_volume_encryption')
@mock.patch('nova.virt.libvirt.guest.BlockDevice.is_job_complete')
@mock.patch('nova.virt.libvirt.guest.BlockDevice.abort_job')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._disconnect_volume')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._connect_volume')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_volume_config')
@mock.patch('nova.virt.libvirt.guest.Guest.get_disk')
@mock.patch('nova.virt.libvirt.host.Host.get_guest')
@mock.patch('nova.virt.libvirt.host.Host.write_instance_config')
def test_swap_volume_disconnect_new_volume_on_pivot_error(self,
write_config, get_guest, get_disk, get_volume_config,
connect_volume, disconnect_volume, abort_job, is_job_complete,
get_volume_encryption):
"""Assert that disconnect_volume is called for the new volume if an
error is encountered while pivoting to the new volume
"""
conn = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
instance = objects.Instance(**self.test_instance)
guest = libvirt_guest.Guest(mock.MagicMock())
get_guest.return_value = guest
get_volume_encryption.return_value = {}
exc = fakelibvirt.make_libvirtError(fakelibvirt.libvirtError,
'internal error', error_code=fakelibvirt.VIR_ERR_INTERNAL_ERROR)
is_job_complete.return_value = True
abort_job.side_effect = [None, exc]
self.assertRaises(exception.VolumeRebaseFailed, conn.swap_volume,
self.context, mock.sentinel.old_connection_info,
mock.sentinel.new_connection_info,
instance, '/dev/vdb', 0)
connect_volume.assert_called_once_with(self.context,
mock.sentinel.new_connection_info, instance)
disconnect_volume.assert_called_once_with(self.context,
mock.sentinel.new_connection_info, instance)
@mock.patch('nova.virt.libvirt.guest.BlockDevice.is_job_complete')
@mock.patch('nova.privsep.path.chown')
def _test_live_snapshot(
self, mock_chown, mock_is_job_complete,
can_quiesce=False, require_quiesce=False):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
mock_dom = mock.MagicMock()
test_image_meta = self.test_image_meta.copy()
if require_quiesce:
test_image_meta = {'properties': {'os_require_quiesce': 'yes'}}
with test.nested(
mock.patch.object(drvr._conn, 'defineXML', create=True),
mock.patch('nova.virt.libvirt.utils.get_disk_size'),
mock.patch('nova.virt.libvirt.utils.get_disk_backing_file'),
mock.patch('nova.virt.libvirt.utils.create_cow_image'),
mock.patch('nova.virt.libvirt.utils.extract_snapshot'),
mock.patch.object(drvr, '_set_quiesced')
) as (mock_define, mock_size, mock_backing, mock_create_cow,
mock_snapshot, mock_quiesce):
xmldoc = "<domain/>"
srcfile = "/first/path"
dstfile = "/second/path"
bckfile = "/other/path"
dltfile = dstfile + ".delta"
mock_dom.XMLDesc.return_value = xmldoc
mock_dom.isPersistent.return_value = True
mock_size.return_value = 1004009
mock_backing.return_value = bckfile
guest = libvirt_guest.Guest(mock_dom)
if not can_quiesce:
mock_quiesce.side_effect = (
exception.InstanceQuiesceNotSupported(
instance_id=self.test_instance['id'], reason='test'))
image_meta = objects.ImageMeta.from_dict(test_image_meta)
mock_is_job_complete.return_value = True
drvr._live_snapshot(self.context, self.test_instance, guest,
srcfile, dstfile, "qcow2", "qcow2", image_meta)
mock_dom.XMLDesc.assert_called_once_with(flags=(
fakelibvirt.VIR_DOMAIN_XML_INACTIVE |
fakelibvirt.VIR_DOMAIN_XML_SECURE))
mock_dom.blockRebase.assert_called_once_with(
srcfile, dltfile, 0, flags=(
fakelibvirt.VIR_DOMAIN_BLOCK_REBASE_COPY |
fakelibvirt.VIR_DOMAIN_BLOCK_REBASE_REUSE_EXT |
fakelibvirt.VIR_DOMAIN_BLOCK_REBASE_SHALLOW))
mock_size.assert_called_once_with(srcfile, format="qcow2")
mock_backing.assert_called_once_with(srcfile, basename=False,
format="qcow2")
mock_create_cow.assert_called_once_with(bckfile, dltfile, 1004009)
mock_chown.assert_called_once_with(dltfile, uid=os.getuid())
mock_snapshot.assert_called_once_with(dltfile, "qcow2",
dstfile, "qcow2")
mock_define.assert_called_once_with(xmldoc)
mock_quiesce.assert_any_call(mock.ANY, self.test_instance,
mock.ANY, True)
if can_quiesce:
mock_quiesce.assert_any_call(mock.ANY, self.test_instance,
mock.ANY, False)
def test_live_snapshot(self):
self._test_live_snapshot()
def test_live_snapshot_with_quiesce(self):
self._test_live_snapshot(can_quiesce=True)
def test_live_snapshot_with_require_quiesce(self):
self._test_live_snapshot(can_quiesce=True, require_quiesce=True)
def test_live_snapshot_with_require_quiesce_fails(self):
self.assertRaises(exception.InstanceQuiesceNotSupported,
self._test_live_snapshot,
can_quiesce=False, require_quiesce=True)
@mock.patch.object(libvirt_driver.LibvirtDriver, "_live_migration")
def test_live_migration_hostname_valid(self, mock_lm):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr.live_migration(self.context, self.test_instance,
"host1.example.com",
lambda x: x,
lambda x: x)
self.assertEqual(1, mock_lm.call_count)
@mock.patch.object(libvirt_driver.LibvirtDriver, "_live_migration")
@mock.patch.object(fake_libvirt_utils, "is_valid_hostname")
def test_live_migration_hostname_invalid(self, mock_hostname, mock_lm):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_hostname.return_value = False
self.assertRaises(exception.InvalidHostname,
drvr.live_migration,
self.context, self.test_instance,
"foo/?com=/bin/sh",
lambda x: x,
lambda x: x)
def test_live_migration_force_complete(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = fake_instance.fake_instance_obj(
None, name='instancename', id=1,
uuid='c83a75d4-4d53-4be5-9a40-04d9c0389ff8')
drvr.active_migrations[instance.uuid] = deque()
drvr.live_migration_force_complete(instance)
self.assertEqual(
1, drvr.active_migrations[instance.uuid].count("force-complete"))
@mock.patch.object(host.Host, "get_connection")
@mock.patch.object(fakelibvirt.virDomain, "abortJob")
def test_live_migration_abort(self, mock_abort, mock_conn):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
dom = fakelibvirt.Domain(drvr._get_connection(), "<domain/>", False)
guest = libvirt_guest.Guest(dom)
with mock.patch.object(nova.virt.libvirt.host.Host, 'get_guest',
return_value=guest):
drvr.live_migration_abort(self.test_instance)
self.assertTrue(mock_abort.called)
@mock.patch('os.path.exists', return_value=True)
@mock.patch('tempfile.mkstemp')
@mock.patch('os.close', return_value=None)
def test_check_instance_shared_storage_local_raw(self,
mock_close,
mock_mkstemp,
mock_exists):
instance_uuid = uuids.fake
self.flags(images_type='raw', group='libvirt')
self.flags(instances_path='/tmp')
mock_mkstemp.return_value = (-1,
'/tmp/{0}/file'.format(instance_uuid))
driver = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
temp_file = driver.check_instance_shared_storage_local(self.context,
instance)
self.assertEqual('/tmp/{0}/file'.format(instance_uuid),
temp_file['filename'])
def test_check_instance_shared_storage_local_rbd(self):
self.flags(images_type='rbd', group='libvirt')
driver = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(**self.test_instance)
self.assertIsNone(driver.
check_instance_shared_storage_local(self.context,
instance))
def test_version_to_string(self):
string_ver = libvirt_utils.version_to_string((4, 33, 173))
self.assertEqual("4.33.173", string_ver)
def test_virtuozzo_min_version_fail(self):
self.flags(virt_type='parallels', group='libvirt')
driver = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with mock.patch.object(driver._conn, 'getVersion') as mock_getver:
mock_getver.return_value = \
versionutils.convert_version_to_int(
libvirt_driver.MIN_VIRTUOZZO_VERSION) - 1
self.assertRaises(exception.NovaException,
driver.init_host, 'wibble')
@mock.patch.object(fakelibvirt.Connection, 'getVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.MIN_VIRTUOZZO_VERSION))
def test_virtuozzo_min_version_ok(self, mock_get_virtuozzo_version):
self.flags(virt_type='parallels', group='libvirt')
driver = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
driver.init_host('wibble')
def test_get_guest_config_parallels_vm(self):
self.flags(virt_type='parallels', group='libvirt')
self.flags(images_type='ploop', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info)
self.assertEqual("parallels", cfg.virt_type)
self.assertEqual(instance_ref["uuid"], cfg.uuid)
self.assertEqual(instance_ref.flavor.memory_mb * units.Ki, cfg.memory)
self.assertEqual(instance_ref.flavor.vcpus, cfg.vcpus)
self.assertEqual(fields.VMMode.HVM, cfg.os_type)
self.assertIsNone(cfg.os_root)
self.assertEqual(6, len(cfg.devices))
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertEqual(cfg.devices[0].driver_format, "ploop")
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestInterface)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestInput)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestVideo)
def test_get_guest_config_parallels_ct_rescue(self):
self._test_get_guest_config_parallels_ct(rescue=True)
def test_get_guest_config_parallels_ct(self):
self._test_get_guest_config_parallels_ct(rescue=False)
def _test_get_guest_config_parallels_ct(self, rescue=False):
self.flags(virt_type='parallels', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
ct_instance = self.test_instance.copy()
ct_instance["vm_mode"] = fields.VMMode.EXE
instance_ref = objects.Instance(**ct_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
if rescue:
rescue_data = ct_instance
else:
rescue_data = None
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, {'mapping': {'disk': {}}},
rescue_data)
self.assertEqual("parallels", cfg.virt_type)
self.assertEqual(instance_ref["uuid"], cfg.uuid)
self.assertEqual(instance_ref.flavor.memory_mb * units.Ki, cfg.memory)
self.assertEqual(instance_ref.flavor.vcpus, cfg.vcpus)
self.assertEqual(fields.VMMode.EXE, cfg.os_type)
self.assertEqual("/sbin/init", cfg.os_init_path)
self.assertIsNone(cfg.os_root)
if rescue:
self.assertEqual(5, len(cfg.devices))
else:
self.assertEqual(4, len(cfg.devices))
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestFilesys)
device_index = 0
fs = cfg.devices[device_index]
self.assertEqual(fs.source_type, "file")
self.assertEqual(fs.driver_type, "ploop")
self.assertEqual(fs.target_dir, "/")
if rescue:
device_index = 1
fs = cfg.devices[device_index]
self.assertEqual(fs.source_type, "file")
self.assertEqual(fs.driver_type, "ploop")
self.assertEqual(fs.target_dir, "/mnt/rescue")
self.assertIsInstance(cfg.devices[device_index + 1],
vconfig.LibvirtConfigGuestInterface)
self.assertIsInstance(cfg.devices[device_index + 2],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[device_index + 3],
vconfig.LibvirtConfigGuestVideo)
def _test_get_guest_config_parallels_volume(self, vmmode, devices):
self.flags(virt_type='parallels', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
ct_instance = self.test_instance.copy()
ct_instance["vm_mode"] = vmmode
instance_ref = objects.Instance(**ct_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
conn_info = {'driver_volume_type': 'fake', 'data': {}}
bdm = objects.BlockDeviceMapping(
self.context,
**fake_block_device.FakeDbBlockDeviceDict(
{'id': 0,
'source_type': 'volume', 'destination_type': 'volume',
'device_name': '/dev/sda'}))
info = {'block_device_mapping': driver_block_device.convert_volumes(
[bdm])}
info['block_device_mapping'][0]['connection_info'] = conn_info
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta,
info)
with mock.patch.object(
driver_block_device.DriverVolumeBlockDevice, 'save'
) as mock_save:
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, disk_info, None, info)
mock_save.assert_called_once_with()
self.assertEqual("parallels", cfg.virt_type)
self.assertEqual(instance_ref["uuid"], cfg.uuid)
self.assertEqual(instance_ref.flavor.memory_mb * units.Ki, cfg.memory)
self.assertEqual(instance_ref.flavor.vcpus, cfg.vcpus)
self.assertEqual(vmmode, cfg.os_type)
self.assertIsNone(cfg.os_root)
self.assertEqual(devices, len(cfg.devices))
disk_found = False
for dev in cfg.devices:
result = isinstance(dev, vconfig.LibvirtConfigGuestFilesys)
self.assertFalse(result)
if (isinstance(dev, vconfig.LibvirtConfigGuestDisk) and
(dev.source_path is None or
'disk.local' not in dev.source_path)):
self.assertEqual("disk", dev.source_device)
self.assertEqual("sda", dev.target_dev)
disk_found = True
self.assertTrue(disk_found)
def test_get_guest_config_parallels_volume(self):
self._test_get_guest_config_parallels_volume(fields.VMMode.EXE, 4)
self._test_get_guest_config_parallels_volume(fields.VMMode.HVM, 6)
def test_get_guest_disk_config_rbd_older_config_drive_fall_back(self):
# New config drives are stored in rbd but existing instances have
# config drives in the old location under the instances path.
# Test that the driver falls back to 'flat' for config drive if it
# doesn't exist in rbd.
self.flags(images_type='rbd', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr.image_backend = mock.Mock()
mock_rbd_image = mock.Mock()
mock_flat_image = mock.Mock()
mock_flat_image.libvirt_info.return_value = mock.sentinel.diskconfig
drvr.image_backend.by_name.side_effect = [mock_rbd_image,
mock_flat_image]
mock_rbd_image.exists.return_value = False
instance = objects.Instance()
disk_mapping = {'disk.config': {'bus': 'ide',
'dev': 'hda',
'type': 'file'}}
flavor = objects.Flavor(extra_specs={})
diskconfig = drvr._get_guest_disk_config(
instance, 'disk.config', disk_mapping, flavor,
drvr._get_disk_config_image_type())
self.assertEqual(2, drvr.image_backend.by_name.call_count)
call1 = mock.call(instance, 'disk.config', 'rbd')
call2 = mock.call(instance, 'disk.config', 'flat')
drvr.image_backend.by_name.assert_has_calls([call1, call2])
self.assertEqual(mock.sentinel.diskconfig, diskconfig)
def _test_prepare_domain_for_snapshot(self, live_snapshot, state):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance_ref = objects.Instance(**self.test_instance)
with mock.patch.object(drvr, "suspend") as mock_suspend:
drvr._prepare_domain_for_snapshot(
self.context, live_snapshot, state, instance_ref)
return mock_suspend.called
def test_prepare_domain_for_snapshot(self):
# Ensure that suspend() is only called on RUNNING or PAUSED instances
for test_power_state in power_state.STATE_MAP.keys():
if test_power_state in (power_state.RUNNING, power_state.PAUSED):
self.assertTrue(self._test_prepare_domain_for_snapshot(
False, test_power_state))
else:
self.assertFalse(self._test_prepare_domain_for_snapshot(
False, test_power_state))
def test_prepare_domain_for_snapshot_lxc(self):
self.flags(virt_type='lxc', group='libvirt')
# Ensure that suspend() is never called with LXC
for test_power_state in power_state.STATE_MAP.keys():
self.assertFalse(self._test_prepare_domain_for_snapshot(
False, test_power_state))
def test_prepare_domain_for_snapshot_live_snapshots(self):
# Ensure that suspend() is never called for live snapshots
for test_power_state in power_state.STATE_MAP.keys():
self.assertFalse(self._test_prepare_domain_for_snapshot(
True, test_power_state))
@mock.patch('os.walk')
@mock.patch('os.path.exists')
@mock.patch('os.path.getsize')
@mock.patch('os.path.isdir')
@mock.patch('oslo_concurrency.processutils.execute')
@mock.patch.object(host.Host, '_get_domain')
def test_get_instance_disk_info_parallels_ct(self, mock_get_domain,
mock_execute,
mock_isdir,
mock_getsize,
mock_exists,
mock_walk):
dummyxml = ("<domain type='parallels'><name>instance-0000000a</name>"
"<os><type>exe</type></os>"
"<devices>"
"<filesystem type='file'>"
"<driver format='ploop' type='ploop'/>"
"<source file='/test/disk'/>"
"<target dir='/'/></filesystem>"
"</devices></domain>")
ret = ("image: /test/disk/root.hds\n"
"file format: parallels\n"
"virtual size: 20G (21474836480 bytes)\n"
"disk size: 789M\n")
self.flags(virt_type='parallels', group='libvirt')
instance = objects.Instance(**self.test_instance)
instance.vm_mode = fields.VMMode.EXE
fake_dom = FakeVirtDomain(fake_xml=dummyxml)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
mock_get_domain.return_value = fake_dom
mock_walk.return_value = [('/test/disk', [],
['DiskDescriptor.xml', 'root.hds'])]
def getsize_sideeffect(*args, **kwargs):
if args[0] == '/test/disk/DiskDescriptor.xml':
return 790
if args[0] == '/test/disk/root.hds':
return 827326464
mock_getsize.side_effect = getsize_sideeffect
mock_exists.return_value = True
mock_isdir.return_value = True
mock_execute.return_value = (ret, '')
info = drvr.get_instance_disk_info(instance)
info = jsonutils.loads(info)
self.assertEqual(info[0]['type'], 'ploop')
self.assertEqual(info[0]['path'], '/test/disk')
self.assertEqual(info[0]['disk_size'], 827327254)
self.assertEqual(info[0]['over_committed_disk_size'], 20647509226)
self.assertEqual(info[0]['virt_disk_size'], 21474836480)
def test_get_guest_config_with_mdevs(self):
mdevs = [uuids.mdev1]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance_ref = objects.Instance(**self.test_instance)
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self, 1),
image_meta, {'mapping': {}},
mdevs=mdevs)
# Loop over all devices to make sure we have at least one mediated one.
for device in cfg.devices:
if isinstance(device, vconfig.LibvirtConfigGuestHostdevMDEV):
# Make sure we use the provided UUID
self.assertEqual(uuids.mdev1, device.uuid)
break
else:
assert False, "Unable to find any mediated device for the guest."
class TestGuestConfigSysinfoSerialOS(test.NoDBTestCase):
def setUp(self):
super(TestGuestConfigSysinfoSerialOS, self).setUp()
# Don't import libvirt
self.useFixture(fixtures.MockPatch('nova.virt.libvirt.driver.libvirt'))
# Don't initialise the Host
self.useFixture(fixtures.MockPatch('nova.virt.libvirt.driver.host'))
def _test_get_guest_config_sysinfo_serial(self, expected_serial):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
test_instance = _create_test_instance()
instance_ref = objects.Instance(**test_instance)
cfg = drvr._get_guest_config_sysinfo(instance_ref)
self.assertIsInstance(cfg, vconfig.LibvirtConfigGuestSysinfo)
self.assertEqual(version.vendor_string(),
cfg.system_manufacturer)
self.assertEqual(version.product_string(),
cfg.system_product)
self.assertEqual(version.version_string_with_package(),
cfg.system_version)
if expected_serial == 'instance_uuid':
expected_serial = instance_ref.uuid
self.assertEqual(expected_serial,
cfg.system_serial)
self.assertEqual(instance_ref['uuid'],
cfg.system_uuid)
self.assertEqual("Virtual Machine",
cfg.system_family)
def test_get_guest_config_sysinfo_serial_none(self):
self.flags(sysinfo_serial="none", group="libvirt")
self._test_get_guest_config_sysinfo_serial(None)
@mock.patch.object(libvirt_driver.LibvirtDriver,
"_get_host_sysinfo_serial_hardware")
def test_get_guest_config_sysinfo_serial_hardware(self, mock_uuid):
self.flags(sysinfo_serial="hardware", group="libvirt")
theuuid = "56b40135-a973-4eb3-87bb-a2382a3e6dbc"
mock_uuid.return_value = theuuid
self._test_get_guest_config_sysinfo_serial(theuuid)
def test_get_guest_config_sysinfo_serial_os(self):
self.flags(sysinfo_serial="os", group="libvirt")
theuuid = "56b40135-a973-4eb3-87bb-a2382a3e6dbc"
with test.nested(
mock.patch.object(six.moves.builtins, "open",
mock.mock_open(read_data=theuuid)),
self.patch_exists("/etc/machine-id", True)):
self._test_get_guest_config_sysinfo_serial(theuuid)
def test_get_guest_config_sysinfo_serial_os_empty_machine_id(self):
self.flags(sysinfo_serial="os", group="libvirt")
with test.nested(
mock.patch.object(six.moves.builtins, "open",
mock.mock_open(read_data="")),
self.patch_exists("/etc/machine-id", True)):
self.assertRaises(exception.NovaException,
self._test_get_guest_config_sysinfo_serial,
None)
def test_get_guest_config_sysinfo_serial_os_no_machine_id_file(self):
self.flags(sysinfo_serial="os", group="libvirt")
with self.patch_exists("/etc/machine-id", False):
self.assertRaises(exception.NovaException,
self._test_get_guest_config_sysinfo_serial,
None)
theuuid = "56b40135-a973-4eb3-87bb-a2382a3e6dbc"
@test.patch_exists("/etc/machine-id", False)
def test_get_guest_config_sysinfo_serial_auto_hardware(self):
self.flags(sysinfo_serial="auto", group="libvirt")
with mock.patch.object(libvirt_driver.LibvirtDriver,
"_get_host_sysinfo_serial_hardware") \
as mock_uuid:
mock_uuid.return_value = self.theuuid
self._test_get_guest_config_sysinfo_serial(self.theuuid)
@test.patch_exists("/etc/machine-id", True)
@test.patch_open("/etc/machine-id", theuuid)
def test_get_guest_config_sysinfo_serial_auto_os(self):
self.flags(sysinfo_serial="auto", group="libvirt")
self._test_get_guest_config_sysinfo_serial(self.theuuid)
def test_get_guest_config_sysinfo_serial_unique(self):
self.flags(sysinfo_serial="unique", group="libvirt")
self._test_get_guest_config_sysinfo_serial('instance_uuid')
class HostStateTestCase(test.NoDBTestCase):
cpu_info = {"vendor": "Intel", "model": "pentium", "arch": "i686",
"features": ["ssse3", "monitor", "pni", "sse2", "sse",
"fxsr", "clflush", "pse36", "pat", "cmov", "mca", "pge",
"mtrr", "sep", "apic"],
"topology": {"cores": "1", "threads": "1", "sockets": "1"}}
instance_caps = [(fields.Architecture.X86_64, "kvm", "hvm"),
(fields.Architecture.I686, "kvm", "hvm")]
pci_devices = [{
"dev_id": "pci_0000_04_00_3",
"address": "0000:04:10.3",
"product_id": '1521',
"vendor_id": '8086',
"dev_type": fields.PciDeviceType.SRIOV_PF,
"phys_function": None}]
numa_topology = objects.NUMATopology(cells=[
objects.NUMACell(
id=1, cpuset=set([1, 2]), memory=1024, cpu_usage=0, memory_usage=0,
mempages=[], siblings=[set([1]), set([2])], pinned_cpus=set([])),
objects.NUMACell(
id=2, cpuset=set([3, 4]), memory=1024, cpu_usage=0, memory_usage=0,
mempages=[], siblings=[set([3]), set([4])], pinned_cpus=set([]))])
class FakeConnection(libvirt_driver.LibvirtDriver):
"""Fake connection object."""
def __init__(self):
super(HostStateTestCase.FakeConnection,
self).__init__(fake.FakeVirtAPI(), True)
self._host = host.Host("qemu:///system")
def _get_memory_mb_total():
return 497
def _get_memory_mb_used():
return 88
self._host.get_memory_mb_total = _get_memory_mb_total
self._host.get_memory_mb_used = _get_memory_mb_used
def _get_vcpu_total(self):
return 1
def _get_vcpu_used(self):
return 0
def _get_cpu_info(self):
return HostStateTestCase.cpu_info
def _get_disk_over_committed_size_total(self):
return 0
def _get_local_gb_info(self):
return {'total': 100, 'used': 20, 'free': 80}
def get_host_uptime(self):
return ('10:01:16 up 1:36, 6 users, '
'load average: 0.21, 0.16, 0.19')
def _get_disk_available_least(self):
return 13091
def _get_instance_capabilities(self):
return HostStateTestCase.instance_caps
def _get_pci_passthrough_devices(self):
return jsonutils.dumps(HostStateTestCase.pci_devices)
def _get_mdev_capable_devices(self, types=None):
return []
def _get_mediated_devices(self, types=None):
return []
def _get_host_numa_topology(self):
return HostStateTestCase.numa_topology
def setUp(self):
super(HostStateTestCase, self).setUp()
self.useFixture(fakelibvirt.FakeLibvirtFixture())
@mock.patch.object(fakelibvirt, "openAuth")
def test_update_status(self, mock_open):
mock_open.return_value = fakelibvirt.Connection("qemu:///system")
drvr = HostStateTestCase.FakeConnection()
stats = drvr.get_available_resource("compute1")
self.assertEqual(stats["vcpus"], 1)
self.assertEqual(stats["memory_mb"], 497)
self.assertEqual(stats["local_gb"], 100)
self.assertEqual(stats["vcpus_used"], 0)
self.assertEqual(stats["memory_mb_used"], 88)
self.assertEqual(stats["local_gb_used"], 20)
self.assertEqual(stats["hypervisor_type"], 'QEMU')
self.assertEqual(stats["hypervisor_version"],
fakelibvirt.FAKE_QEMU_VERSION)
self.assertEqual(stats["hypervisor_hostname"], 'compute1')
cpu_info = jsonutils.loads(stats["cpu_info"])
self.assertEqual(cpu_info,
{"vendor": "Intel", "model": "pentium",
"arch": fields.Architecture.I686,
"features": ["ssse3", "monitor", "pni", "sse2", "sse",
"fxsr", "clflush", "pse36", "pat", "cmov",
"mca", "pge", "mtrr", "sep", "apic"],
"topology": {"cores": "1", "threads": "1", "sockets": "1"}
})
self.assertEqual(stats["disk_available_least"], 80)
self.assertEqual(jsonutils.loads(stats["pci_passthrough_devices"]),
HostStateTestCase.pci_devices)
self.assertEqual(objects.NUMATopology.obj_from_db_obj(
stats['numa_topology']),
HostStateTestCase.numa_topology)
class TestUpdateProviderTree(test.NoDBTestCase):
vcpus = 24
memory_mb = 1024
disk_gb = 200
cpu_traits = {t: False for t in libvirt_utils.CPU_TRAITS_MAPPING.values()}
def setUp(self):
super(TestUpdateProviderTree, self).setUp()
self.useFixture(fakelibvirt.FakeLibvirtFixture())
self.driver = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
# create compute node resource provider
self.cn_rp = dict(
uuid=uuids.cn,
name='compute-node',
)
# create shared storage resource provider
self.shared_rp = dict(
uuid=uuids.shared_storage,
name='shared_storage_rp',
)
self.pt = provider_tree.ProviderTree()
self.pt.new_root(self.cn_rp['name'], self.cn_rp['uuid'], generation=0)
self.pt.new_root(self.shared_rp['name'], self.shared_rp['uuid'],
generation=0)
self.cpu_traits['HW_CPU_X86_AVX512F'] = True
self.cpu_traits['HW_CPU_X86_BMI'] = True
def _get_inventory(self):
return {
orc.VCPU: {
'total': self.vcpus,
'min_unit': 1,
'max_unit': self.vcpus,
'step_size': 1,
'allocation_ratio': 16.0,
'reserved': 0,
},
orc.MEMORY_MB: {
'total': self.memory_mb,
'min_unit': 1,
'max_unit': self.memory_mb,
'step_size': 1,
'allocation_ratio': 1.5,
'reserved': 512,
},
orc.DISK_GB: {
'total': self.disk_gb,
'min_unit': 1,
'max_unit': self.disk_gb,
'step_size': 1,
'allocation_ratio': 1.0,
'reserved': 0,
},
}
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_cpu_traits',
new=mock.Mock(return_value=cpu_traits))
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_gpu_inventories')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_local_gb_info',
return_value={'total': disk_gb})
@mock.patch('nova.virt.libvirt.host.Host.get_memory_mb_total',
return_value=memory_mb)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_vcpu_total',
return_value=vcpus)
def _test_update_provider_tree(self, mock_vcpu, mock_mem, mock_disk,
mock_gpu_invs, gpu_invs=None):
if gpu_invs:
self.flags(enabled_vgpu_types=['nvidia-11'], group='devices')
mock_gpu_invs.return_value = gpu_invs
self.driver.update_provider_tree(self.pt,
self.cn_rp['name'])
def test_update_provider_tree(self):
self._test_update_provider_tree()
self.assertEqual(self._get_inventory(),
(self.pt.data(self.cn_rp['uuid'])).inventory)
self.assertEqual(set(['HW_CPU_X86_AVX512F', 'HW_CPU_X86_BMI']),
self.pt.data(self.cn_rp['uuid']).traits)
def test_update_provider_tree_with_vgpus(self):
pci_devices = ['pci_0000_06_00_0', 'pci_0000_07_00_0']
gpu_inventory_dicts = {
pci_devices[0]: {'total': 16,
'max_unit': 16,
'min_unit': 1,
'step_size': 1,
'reserved': 0,
'allocation_ratio': 1.0,
},
pci_devices[1]: {'total': 8,
'max_unit': 8,
'min_unit': 1,
'step_size': 1,
'reserved': 0,
'allocation_ratio': 1.0,
},
}
self._test_update_provider_tree(gpu_invs=gpu_inventory_dicts)
inventory = self._get_inventory()
# root compute node provider inventory is unchanged
self.assertEqual(inventory,
(self.pt.data(self.cn_rp['uuid'])).inventory)
# We should have two new pGPU child providers in the tree under the
# compute node root provider.
compute_node_tree_uuids = self.pt.get_provider_uuids(
self.cn_rp['name'])
self.assertEqual(3, len(compute_node_tree_uuids))
# Create a default GPU inventory with no total and max_unit amounts yet
default_gpu_inventory = {
orc.VGPU: {
'step_size': 1, 'min_unit': 1, 'reserved': 0,
'allocation_ratio': 1.0
}
}
# The pGPU child providers should be any item in the list but the first
# which is the root provider UUID
for rp_uuid in compute_node_tree_uuids[1:]:
pgpu_provider_data = self.pt.data(rp_uuid)
# Identify which PCI device is related to this Resource Provider
pci_device = (pci_devices[0]
if pci_devices[0] in pgpu_provider_data.name
else pci_devices[1])
self.assertEqual('%s_%s' % (self.cn_rp['name'], pci_device),
pgpu_provider_data.name)
pgpu_inventory = default_gpu_inventory.copy()
inventory_dict = gpu_inventory_dicts[pci_device]
pgpu_inventory[orc.VGPU][
'total'] = inventory_dict['total']
pgpu_inventory[orc.VGPU][
'max_unit'] = inventory_dict['max_unit']
self.assertEqual(pgpu_inventory, pgpu_provider_data.inventory)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_local_gb_info',
return_value={'total': disk_gb})
@mock.patch('nova.virt.libvirt.host.Host.get_memory_mb_total',
return_value=memory_mb)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_vcpu_total',
return_value=vcpus)
# TODO(efried): Bug #1784020
@unittest.expectedFailure
def test_update_provider_tree_for_shared_disk_gb_resource(
self, mock_vcpu, mock_mem, mock_disk):
"""Test to check DISK_GB is reported from shared resource
provider.
"""
shared_rp_inv = {
orc.DISK_GB: {
'total': self.disk_gb,
'min_unit': 1,
'max_unit': self.disk_gb,
'step_size': 1,
}
}
# report inventory for shared storage resource provider
self.pt.update_inventory(self.shared_rp['uuid'], shared_rp_inv)
# add trait to shared storage resource provider
self.pt.update_traits(self.shared_rp['uuid'],
['MISC_SHARES_VIA_AGGREGATE'])
self.driver.update_provider_tree(self.pt,
self.cn_rp['name'])
inventory = self._get_inventory()
# Remove DISK_GB resource from inventory as you don't expect it to be
# reported by the compute node resource provider.
del inventory[orc.DISK_GB]
self.assertEqual(inventory,
(self.pt.data(self.cn_rp['uuid'])).inventory)
self.assertEqual(shared_rp_inv,
(self.pt.data(self.shared_rp['uuid'])).inventory)
def test_update_provider_tree_with_file_backed_memory(self):
self.flags(file_backed_memory=1024,
group="libvirt")
self._test_update_provider_tree()
self.assertEqual(self._get_inventory(),
(self.pt.data(self.cn_rp['uuid'])).inventory)
def test_update_provider_tree_with_cpu_traits(self):
# These two traits should be unset when update_provider_tree is called
self.pt.add_traits(self.cn_rp['uuid'],
'HW_CPU_X86_VMX', 'HW_CPU_X86_XOP')
self._test_update_provider_tree()
self.assertEqual(set(['HW_CPU_X86_AVX512F', 'HW_CPU_X86_BMI']),
self.pt.data(self.cn_rp['uuid']).traits)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_cpu_traits',
new=mock.Mock(return_value=cpu_traits))
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_get_mediated_device_information')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_get_all_assigned_mediated_devices')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_gpu_inventories')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_local_gb_info',
return_value={'total': disk_gb})
@mock.patch('nova.virt.libvirt.host.Host.get_memory_mb_total',
return_value=memory_mb)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_vcpu_total',
return_value=vcpus)
def test_update_provider_tree_for_vgpu_reshape(
self, mock_vcpu, mock_mem, mock_disk, mock_gpus, mock_get_devs,
mock_get_mdev_info):
"""Tests the VGPU reshape scenario."""
self.flags(enabled_vgpu_types=['nvidia-11'], group='devices')
# Let's assume we have two PCI devices each having 4 pGPUs for this
# type
pci_devices = ['pci_0000_06_00_0', 'pci_0000_07_00_0']
gpu_inventory_dicts = {
pci_devices[0]: {'total': 4,
'max_unit': 4,
'min_unit': 1,
'step_size': 1,
'reserved': 0,
'allocation_ratio': 1.0,
},
pci_devices[1]: {'total': 4,
'max_unit': 4,
'min_unit': 1,
'step_size': 1,
'reserved': 0,
'allocation_ratio': 1.0,
},
}
mock_gpus.return_value = gpu_inventory_dicts
# Fake the fact that we have one vGPU allocated to one instance and
# this vGPU is on the first PCI device
mock_get_devs.return_value = {uuids.mdev1: uuids.consumer1}
mock_get_mdev_info.side_effect = [
{"dev_id": "mdev_fake",
"uuid": uuids.mdev1,
"parent": pci_devices[0],
"type": "nvidia-11",
"iommu_group": 12
}]
# First create a provider tree with VGPU inventory on the root node
# provider. Since we have 2 devices with 4 pGPUs each, the total is 8
# as we were flattening all resources in one single inventory before
inventory = self._get_inventory()
vgpu_inventory = {
orc.VGPU: {
'step_size': 1, 'min_unit': 1, 'max_unit': 8, 'total': 8
}
}
inventory.update(vgpu_inventory)
self.pt.update_inventory(self.cn_rp['uuid'], inventory)
# Call update_provider_tree which will raise ReshapeNeeded because
# there is VGPU inventory on the root node provider.
self.assertRaises(exception.ReshapeNeeded,
self.driver.update_provider_tree,
self.pt, self.cn_rp['name'])
# Now make up some fake allocations to pass back to the upt method
# for the reshape.
allocations = {
uuids.consumer1: {
'allocations': {
# This consumer has ram and vgpu allocations on the root
# node provider and should be changed.
self.cn_rp['uuid']: {
'resources': {
orc.MEMORY_MB: 512,
orc.VGPU: 1
}
}
}
},
uuids.consumer2: {
'allocations': {
# This consumer has ram and vcpu allocations on the root
# node provider and should not be changed.
self.cn_rp['uuid']: {
'resources': {
orc.MEMORY_MB: 256,
orc.VCPU: 2
}
}
}
}
}
original_allocations = copy.deepcopy(allocations)
# Initiate the reshape.
self.driver.update_provider_tree(
self.pt, self.cn_rp['name'], allocations=allocations)
# We should have two new VGPU child providers in the tree under the
# compute node root provider.
compute_node_tree_uuids = self.pt.get_provider_uuids(
self.cn_rp['name'])
self.assertEqual(3, len(compute_node_tree_uuids))
rp_per_pci_device = {}
# The VGPU child providers should be the 2nd and 3rd UUIDs in that list
for rp_uuid in compute_node_tree_uuids[1:]:
# The VGPU inventory should be on the VGPU child provider
pgpu_provider_data = self.pt.data(rp_uuid)
# We want to map the PCI device with the RP UUID
if pci_devices[0] in pgpu_provider_data.name:
rp_per_pci_device[pci_devices[0]] = rp_uuid
elif pci_devices[1] in pgpu_provider_data.name:
rp_per_pci_device[pci_devices[1]] = rp_uuid
# Make sure we have two child resource providers
self.assertEqual(2, len(rp_per_pci_device))
# The compute node root provider should not have VGPU inventory.
del inventory[orc.VGPU]
self.assertEqual(inventory, self.pt.data(self.cn_rp['uuid']).inventory)
# consumer1 should now have allocations against two providers,
# MEMORY_MB on the root compute node provider and VGPU on the child
# provider.
consumer1_allocs = allocations[uuids.consumer1]['allocations']
self.assertEqual(2, len(consumer1_allocs))
self.assertEqual({orc.MEMORY_MB: 512},
consumer1_allocs[self.cn_rp['uuid']]['resources'])
# Make sure the VGPU allocation moved to the corresponding child RP
self.assertEqual(
{orc.VGPU: 1},
consumer1_allocs[rp_per_pci_device[pci_devices[0]]]['resources'])
# The allocations on consumer2 should be unchanged.
self.assertEqual(original_allocations[uuids.consumer2],
allocations[uuids.consumer2])
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_cpu_traits',
new=mock.Mock(return_value=cpu_traits))
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_gpu_inventories')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_local_gb_info',
return_value={'total': disk_gb})
@mock.patch('nova.virt.libvirt.host.Host.get_memory_mb_total',
return_value=memory_mb)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._get_vcpu_total',
return_value=vcpus)
def test_update_provider_tree_for_vgpu_reshape_fails(
self, mock_vcpu, mock_mem, mock_disk, mock_gpus):
"""Tests the VGPU reshape failure scenario where VGPU allocations
are not on the root compute node provider as expected.
"""
self.flags(enabled_vgpu_types=['nvidia-11'], group='devices')
# Let's assume we have two PCI devices each having 4 pGPUs for this
# type
pci_devices = ['pci_0000_06_00_0', 'pci_0000_07_00_0']
gpu_inventory_dicts = {
pci_devices[0]: {'total': 4,
'max_unit': 4,
'min_unit': 1,
'step_size': 1,
'reserved': 0,
'allocation_ratio': 1.0,
},
pci_devices[1]: {'total': 4,
'max_unit': 4,
'min_unit': 1,
'step_size': 1,
'reserved': 0,
'allocation_ratio': 1.0,
},
}
mock_gpus.return_value = gpu_inventory_dicts
# First create a provider tree with VGPU inventory on the root node
# provider.
inventory = self._get_inventory()
vgpu_inventory = {
orc.VGPU: {
'step_size': 1, 'min_unit': 1, 'max_unit': 8, 'total': 8
}
}
inventory.update(vgpu_inventory)
self.pt.update_inventory(self.cn_rp['uuid'], inventory)
# Now make up some fake allocations to pass back to the upt method
# for the reshape.
allocations = {
uuids.consumer1: {
'allocations': {
# This consumer has invalid VGPU allocations on a non-root
# compute node provider.
uuids.other_rp: {
'resources': {
orc.MEMORY_MB: 512,
orc.VGPU: 1
}
}
}
}
}
# Initiate the reshape.
ex = self.assertRaises(exception.ReshapeFailed,
self.driver.update_provider_tree,
self.pt, self.cn_rp['name'],
allocations=allocations)
self.assertIn('Unexpected VGPU resource allocation on provider %s'
% uuids.other_rp, six.text_type(ex))
class TraitsComparisonMixin(object):
def assertTraitsEqual(self, expected, actual):
exp = {t: t in expected
for t in libvirt_utils.CPU_TRAITS_MAPPING.values()}
self.assertEqual(exp, actual)
class LibvirtDriverTestCase(test.NoDBTestCase, TraitsComparisonMixin):
"""Test for nova.virt.libvirt.libvirt_driver.LibvirtDriver."""
def setUp(self):
super(LibvirtDriverTestCase, self).setUp()
self.flags(sysinfo_serial="none", group="libvirt")
self.flags(instances_path=self.useFixture(fixtures.TempDir()).path)
self.useFixture(fakelibvirt.FakeLibvirtFixture())
os_vif.initialize()
self.drvr = libvirt_driver.LibvirtDriver(
fake.FakeVirtAPI(), read_only=True)
self.context = context.get_admin_context()
self.test_image_meta = {
"disk_format": "raw",
}
def _create_instance(self, params=None):
"""Create a test instance."""
if not params:
params = {}
flavor = objects.Flavor(memory_mb=512,
swap=0,
vcpu_weight=None,
root_gb=10,
id=2,
name=u'm1.tiny',
ephemeral_gb=20,
rxtx_factor=1.0,
flavorid=u'1',
vcpus=1,
extra_specs={})
flavor.update(params.pop('flavor', {}))
inst = {}
inst['id'] = 1
inst['uuid'] = uuids.fake_instance_id
inst['os_type'] = 'linux'
inst['image_ref'] = uuids.fake_image_ref
inst['reservation_id'] = 'r-fakeres'
inst['user_id'] = 'fake'
inst['project_id'] = 'fake'
inst['instance_type_id'] = 2
inst['ami_launch_index'] = 0
inst['host'] = 'host1'
inst['root_gb'] = flavor.root_gb
inst['ephemeral_gb'] = flavor.ephemeral_gb
inst['config_drive'] = True
inst['kernel_id'] = 2
inst['ramdisk_id'] = 3
inst['key_data'] = 'ABCDEFG'
inst['system_metadata'] = {}
inst['metadata'] = {}
inst['task_state'] = None
inst.update(params)
instance = fake_instance.fake_instance_obj(
self.context, expected_attrs=['metadata', 'system_metadata',
'pci_devices'],
flavor=flavor, **inst)
# Attributes which we need to be set so they don't touch the db,
# but it's not worth the effort to fake properly
for field in ['numa_topology', 'vcpu_model', 'trusted_certs']:
setattr(instance, field, None)
return instance
@mock.patch(('nova.virt.libvirt.driver.LibvirtDriver.'
'_get_instance_disk_info'), return_value=[])
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._destroy')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.get_host_ip_addr',
return_value='10.0.0.1')
@mock.patch(('nova.virt.libvirt.driver.LibvirtDriver.'
'_is_storage_shared_with'), return_value=False)
@mock.patch('os.rename')
@mock.patch('os.path.exists', return_value=True)
@mock.patch('oslo_concurrency.processutils.execute',
side_effect=test.TestingException)
def test_migrate_disk_and_power_off_exception(
self, mock_execute, mock_exists, mock_rename, mock_is_shared,
mock_get_host_ip, mock_destroy, mock_get_disk_info):
"""Test for nova.virt.libvirt.libvirt_driver.LivirtConnection
.migrate_disk_and_power_off.
"""
ins_ref = self._create_instance()
flavor = {'root_gb': 10, 'ephemeral_gb': 20}
flavor_obj = objects.Flavor(**flavor)
self.assertRaises(test.TestingException,
self.drvr.migrate_disk_and_power_off,
context.get_admin_context(), ins_ref, '10.0.0.2',
flavor_obj, None)
@mock.patch(('nova.virt.libvirt.driver.LibvirtDriver.'
'_get_instance_disk_info'))
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._destroy')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.get_host_ip_addr',
return_value='10.0.0.1')
@mock.patch(('nova.virt.libvirt.driver.LibvirtDriver.'
'_is_storage_shared_with'), return_value=False)
@mock.patch('os.rename')
@mock.patch('os.path.exists', return_value=True)
@mock.patch('oslo_concurrency.processutils.execute')
def _test_migrate_disk_and_power_off(
self, ctxt, flavor_obj, mock_execute, mock_exists, mock_rename,
mock_is_shared, mock_get_host_ip, mock_destroy,
mock_get_disk_info, block_device_info=None,
params_for_instance=None):
"""Test for nova.virt.libvirt.libvirt_driver.LivirtConnection
.migrate_disk_and_power_off.
"""
instance = self._create_instance(params=params_for_instance)
disk_info = list(fake_disk_info_byname(instance).values())
disk_info_text = jsonutils.dumps(disk_info)
mock_get_disk_info.return_value = disk_info
# dest is different host case
out = self.drvr.migrate_disk_and_power_off(
ctxt, instance, '10.0.0.2', flavor_obj, None,
block_device_info=block_device_info)
self.assertEqual(out, disk_info_text)
# dest is same host case
out = self.drvr.migrate_disk_and_power_off(
ctxt, instance, '10.0.0.1', flavor_obj, None,
block_device_info=block_device_info)
self.assertEqual(out, disk_info_text)
def test_migrate_disk_and_power_off(self):
flavor = {'root_gb': 10, 'ephemeral_gb': 20}
flavor_obj = objects.Flavor(**flavor)
self._test_migrate_disk_and_power_off(self.context, flavor_obj)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._disconnect_volume')
def test_migrate_disk_and_power_off_boot_from_volume(self,
disconnect_volume):
info = {
'block_device_mapping': [
{'boot_index': None,
'mount_device': '/dev/vdd',
'connection_info': mock.sentinel.conn_info_vdd},
{'boot_index': 0,
'mount_device': '/dev/vda',
'connection_info': mock.sentinel.conn_info_vda}]}
flavor = {'root_gb': 1, 'ephemeral_gb': 0}
flavor_obj = objects.Flavor(**flavor)
# Note(Mike_D): The size of instance's ephemeral_gb is 0 gb.
self._test_migrate_disk_and_power_off(self.context,
flavor_obj, block_device_info=info,
params_for_instance={'image_ref': None,
'root_gb': 10,
'ephemeral_gb': 0,
'flavor': {'root_gb': 10,
'ephemeral_gb': 0}})
disconnect_volume.assert_called_with(self.context,
mock.sentinel.conn_info_vda, mock.ANY)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._disconnect_volume')
def test_migrate_disk_and_power_off_boot_from_volume_backed_snapshot(
self, disconnect_volume):
# Such instance has not empty image_ref, but must be considered as
# booted from volume.
info = {
'block_device_mapping': [
{'boot_index': None,
'mount_device': '/dev/vdd',
'connection_info': mock.sentinel.conn_info_vdd},
{'boot_index': 0,
'mount_device': '/dev/vda',
'connection_info': mock.sentinel.conn_info_vda}]}
flavor = {'root_gb': 1, 'ephemeral_gb': 0}
flavor_obj = objects.Flavor(**flavor)
self._test_migrate_disk_and_power_off(self.context,
flavor_obj, block_device_info=info,
params_for_instance={
'image_ref': uuids.fake_volume_backed_image_ref,
'root_gb': 10,
'ephemeral_gb': 0,
'flavor': {'root_gb': 10,
'ephemeral_gb': 0}})
disconnect_volume.assert_called_with(self.context,
mock.sentinel.conn_info_vda, mock.ANY)
@mock.patch('os.rename')
@mock.patch('nova.virt.libvirt.utils.copy_image')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._destroy')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.get_host_ip_addr')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver'
'._get_instance_disk_info')
def test_migrate_disk_and_power_off_swap(self, mock_get_disk_info,
get_host_ip_addr,
mock_destroy,
mock_copy_image,
mock_rename):
"""Test for nova.virt.libvirt.libvirt_driver.LivirtConnection
.migrate_disk_and_power_off.
"""
# Original instance config
instance = self._create_instance({'flavor': {'root_gb': 10,
'ephemeral_gb': 0}})
disk_info = list(fake_disk_info_byname(instance).values())
mock_get_disk_info.return_value = disk_info
get_host_ip_addr.return_value = '10.0.0.1'
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
# Re-size fake instance to 20G root and 1024M swap disk
flavor = {'root_gb': 20, 'ephemeral_gb': 0, 'swap': 1024}
flavor_obj = objects.Flavor(**flavor)
# Destination is same host
out = drvr.migrate_disk_and_power_off(context.get_admin_context(),
instance, '10.0.0.1',
flavor_obj, None)
mock_get_disk_info.assert_called_once_with(instance, None)
self.assertTrue(get_host_ip_addr.called)
mock_destroy.assert_called_once_with(instance)
disk_info_text = jsonutils.dumps(disk_info)
self.assertEqual(disk_info_text, out)
# disk.swap isn't moved
for call in mock_rename.mock_calls:
self.assertFalse(call[0].endswith('.swap'))
# disk.swap isn't copied
for call in mock_copy_image.mock_calls:
self.assertFalse(call[0].endswith('.swap'))
def _test_migrate_disk_and_power_off_resize_check(self, expected_exc):
"""Test for nova.virt.libvirt.libvirt_driver.LibvirtConnection
.migrate_disk_and_power_off.
"""
instance = self._create_instance()
flavor = {'root_gb': 10, 'ephemeral_gb': 20}
flavor_obj = objects.Flavor(**flavor)
# Migration is not implemented for LVM backed instances
self.assertRaises(expected_exc,
self.drvr.migrate_disk_and_power_off,
None, instance, '10.0.0.1', flavor_obj, None)
@mock.patch('oslo_concurrency.processutils.execute')
@mock.patch('os.rename')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._destroy')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver'
'._get_instance_disk_info')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver'
'._is_storage_shared_with')
def _test_migrate_disk_and_power_off_backing_file(self,
shared_storage,
mock_is_shared_storage,
mock_get_disk_info,
mock_destroy,
mock_rename,
mock_execute):
self.convert_file_called = False
flavor = {'root_gb': 20, 'ephemeral_gb': 30, 'swap': 0}
flavor_obj = objects.Flavor(**flavor)
disk_info = [{'type': 'qcow2', 'path': '/test/disk',
'virt_disk_size': '10737418240',
'backing_file': '/base/disk',
'disk_size': '83886080'}]
mock_get_disk_info.return_value = disk_info
mock_is_shared_storage.return_value = shared_storage
def fake_execute(*args, **kwargs):
self.assertNotEqual(args[0:2], ['qemu-img', 'convert'])
mock_execute.side_effect = fake_execute
instance = self._create_instance()
out = self.drvr.migrate_disk_and_power_off(
context.get_admin_context(), instance, '10.0.0.2',
flavor_obj, None)
self.assertTrue(mock_is_shared_storage.called)
mock_destroy.assert_called_once_with(instance)
disk_info_text = jsonutils.dumps(disk_info)
self.assertEqual(out, disk_info_text)
def test_migrate_disk_and_power_off_shared_storage(self):
self._test_migrate_disk_and_power_off_backing_file(True)
def test_migrate_disk_and_power_off_non_shared_storage(self):
self._test_migrate_disk_and_power_off_backing_file(False)
def test_migrate_disk_and_power_off_lvm(self):
self.flags(images_type='lvm', group='libvirt')
expected_exc = exception.InstanceFaultRollback
self._test_migrate_disk_and_power_off_resize_check(expected_exc)
@mock.patch.object(libvirt_driver.LibvirtDriver, '_is_storage_shared_with',
return_value=False)
def test_migrate_disk_and_power_off_resize_cannot_ssh(self,
mock_is_shared):
def fake_execute(*args, **kwargs):
raise processutils.ProcessExecutionError()
self.stub_out('oslo_concurrency.processutils.execute', fake_execute)
expected_exc = exception.InstanceFaultRollback
self._test_migrate_disk_and_power_off_resize_check(expected_exc)
mock_is_shared.assert_called_once_with('10.0.0.1', test.MatchType(str))
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver'
'._get_instance_disk_info')
def test_migrate_disk_and_power_off_resize_error(self, mock_get_disk_info):
instance = self._create_instance()
flavor = {'root_gb': 5, 'ephemeral_gb': 10}
flavor_obj = objects.Flavor(**flavor)
mock_get_disk_info.return_value = fake_disk_info_json(instance)
self.assertRaises(
exception.InstanceFaultRollback,
self.drvr.migrate_disk_and_power_off,
'ctx', instance, '10.0.0.1', flavor_obj, None)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver'
'._get_instance_disk_info')
def test_migrate_disk_and_power_off_resize_error_rbd(self,
mock_get_disk_info):
# Check error on resize root disk down for rbd.
# The difference is that get_instance_disk_info always returns
# an emply list for rbd.
# Ephemeral size is not changed in this case (otherwise other check
# will raise the same error).
self.flags(images_type='rbd', group='libvirt')
instance = self._create_instance()
flavor = {'root_gb': 5, 'ephemeral_gb': 20}
flavor_obj = objects.Flavor(**flavor)
mock_get_disk_info.return_value = []
self.assertRaises(
exception.InstanceFaultRollback,
self.drvr.migrate_disk_and_power_off,
'ctx', instance, '10.0.0.1', flavor_obj, None)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver'
'._get_instance_disk_info')
def test_migrate_disk_and_power_off_resize_error_default_ephemeral(
self, mock_get_disk_info):
# Note(Mike_D): The size of this instance's ephemeral_gb is 20 gb.
instance = self._create_instance()
flavor = {'root_gb': 10, 'ephemeral_gb': 0}
flavor_obj = objects.Flavor(**flavor)
mock_get_disk_info.return_value = fake_disk_info_json(instance)
self.assertRaises(exception.InstanceFaultRollback,
self.drvr.migrate_disk_and_power_off,
'ctx', instance, '10.0.0.1', flavor_obj, None)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver'
'._get_instance_disk_info')
@mock.patch('nova.virt.driver.block_device_info_get_ephemerals')
def test_migrate_disk_and_power_off_resize_error_eph(self, mock_get,
mock_get_disk_info):
mappings = [
{
'device_name': '/dev/sdb4',
'source_type': 'blank',
'destination_type': 'local',
'device_type': 'disk',
'guest_format': 'swap',
'boot_index': -1,
'volume_size': 1
},
{
'device_name': '/dev/sda1',
'source_type': 'volume',
'destination_type': 'volume',
'device_type': 'disk',
'volume_id': 1,
'guest_format': None,
'boot_index': 1,
'volume_size': 6
},
{
'device_name': '/dev/sda2',
'source_type': 'snapshot',
'destination_type': 'volume',
'snapshot_id': 1,
'device_type': 'disk',
'guest_format': None,
'boot_index': 0,
'volume_size': 4
},
{
'device_name': '/dev/sda3',
'source_type': 'blank',
'destination_type': 'local',
'device_type': 'disk',
'guest_format': None,
'boot_index': -1,
'volume_size': 3
}
]
mock_get.return_value = mappings
instance = self._create_instance()
# Old flavor, eph is 20, real disk is 3, target is 2, fail
flavor = {'root_gb': 10, 'ephemeral_gb': 2}
flavor_obj = objects.Flavor(**flavor)
mock_get_disk_info.return_value = fake_disk_info_json(instance)
self.assertRaises(
exception.InstanceFaultRollback,
self.drvr.migrate_disk_and_power_off,
'ctx', instance, '10.0.0.1', flavor_obj, None)
# Old flavor, eph is 20, real disk is 3, target is 4
flavor = {'root_gb': 10, 'ephemeral_gb': 4}
flavor_obj = objects.Flavor(**flavor)
self._test_migrate_disk_and_power_off(self.context, flavor_obj)
@mock.patch('os.rename')
@mock.patch('oslo_concurrency.processutils.execute')
@mock.patch('nova.virt.libvirt.utils.copy_image')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._destroy')
@mock.patch('nova.virt.libvirt.utils.get_instance_path')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver'
'._is_storage_shared_with')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver'
'._get_instance_disk_info')
def test_migrate_disk_and_power_off_resize_copy_disk_info(
self, mock_disk_info, mock_shared, mock_path, mock_destroy,
mock_copy, mock_execute, mock_rename):
instance = self._create_instance()
disk_info = list(fake_disk_info_byname(instance).values())
instance_base = os.path.dirname(disk_info[0]['path'])
flavor = {'root_gb': 10, 'ephemeral_gb': 25}
flavor_obj = objects.Flavor(**flavor)
mock_disk_info.return_value = disk_info
mock_path.return_value = instance_base
mock_shared.return_value = False
src_disk_info_path = os.path.join(instance_base + '_resize',
'disk.info')
with mock.patch.object(os.path, 'exists', autospec=True) \
as mock_exists:
# disk.info exists on the source
mock_exists.side_effect = \
lambda path: path == src_disk_info_path
self.drvr.migrate_disk_and_power_off(context.get_admin_context(),
instance, mock.sentinel,
flavor_obj, None)
self.assertTrue(mock_exists.called)
dst_disk_info_path = os.path.join(instance_base, 'disk.info')
mock_copy.assert_any_call(src_disk_info_path, dst_disk_info_path,
host=mock.sentinel, on_execute=mock.ANY,
on_completion=mock.ANY)
def test_wait_for_running(self):
def fake_get_info(self, instance):
if instance['name'] == "not_found":
raise exception.InstanceNotFound(instance_id=instance['uuid'])
elif instance['name'] == "running":
return hardware.InstanceInfo(state=power_state.RUNNING)
else:
return hardware.InstanceInfo(state=power_state.SHUTDOWN)
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver.get_info',
fake_get_info)
# instance not found case
self.assertRaises(exception.InstanceNotFound,
self.drvr._wait_for_running,
{'name': 'not_found',
'uuid': 'not_found_uuid'})
# instance is running case
self.assertRaises(loopingcall.LoopingCallDone,
self.drvr._wait_for_running,
{'name': 'running',
'uuid': 'running_uuid'})
# else case
self.drvr._wait_for_running({'name': 'else',
'uuid': 'other_uuid'})
@mock.patch.object(compute_utils, 'disk_ops_semaphore')
@mock.patch('nova.privsep.utils.supports_direct_io', return_value=True)
@mock.patch('oslo_concurrency.processutils.execute')
@mock.patch('os.rename')
def test_disk_raw_to_qcow2(self, mock_rename, mock_execute, mock_direct_io,
mock_disk_op_sema):
path = '/test/disk'
_path_qcow = path + '_qcow'
self.drvr._disk_raw_to_qcow2(path)
mock_disk_op_sema.__enter__.assert_called_once()
mock_direct_io.assert_called_once_with(CONF.instances_path)
mock_execute.assert_has_calls([
mock.call('qemu-img', 'convert', '-t', 'none',
'-O', 'qcow2', '-f', 'raw', path, _path_qcow)])
mock_rename.assert_has_calls([
mock.call(_path_qcow, path)])
@mock.patch.object(compute_utils, 'disk_ops_semaphore')
@mock.patch('nova.privsep.utils.supports_direct_io', return_value=False)
@mock.patch('oslo_concurrency.processutils.execute')
@mock.patch('os.rename')
def test_disk_raw_to_qcow2_no_directio(self, mock_rename, mock_execute,
mock_direct_io, mock_disk_op_sema):
# Test the scenario where we have no support for direct IO.
# This could be removed when we add unit tests for convert_image().
path = '/test/disk'
_path_qcow = path + '_qcow'
self.drvr._disk_raw_to_qcow2(path)
mock_disk_op_sema.__enter__.assert_called_once()
mock_direct_io.assert_called_once_with(CONF.instances_path)
mock_execute.assert_has_calls([
mock.call('qemu-img', 'convert', '-t', 'writeback',
'-O', 'qcow2', '-f', 'raw', path, _path_qcow)])
mock_rename.assert_has_calls([
mock.call(_path_qcow, path)])
@mock.patch.object(libvirt_driver.LibvirtDriver, '_inject_data')
@mock.patch.object(libvirt_driver.LibvirtDriver, 'get_info')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_create_domain_and_network')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_disk_raw_to_qcow2')
# Don't write libvirt xml to disk
@mock.patch.object(libvirt_utils, 'write_to_file')
# NOTE(mdbooth): The following 4 mocks are required to execute
# get_guest_xml().
@mock.patch.object(libvirt_driver.LibvirtDriver, '_set_host_enabled')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_build_device_metadata')
@mock.patch('nova.privsep.utils.supports_direct_io')
@mock.patch('nova.api.metadata.base.InstanceMetadata')
def _test_finish_migration(self, mock_instance_metadata,
mock_supports_direct_io,
mock_build_device_metadata,
mock_set_host_enabled, mock_write_to_file,
mock_raw_to_qcow2,
mock_create_domain_and_network,
mock_get_info, mock_inject_data,
power_on=True, resize_instance=False):
"""Test for nova.virt.libvirt.libvirt_driver.LivirtConnection
.finish_migration.
"""
self.flags(use_cow_images=True)
if power_on:
state = power_state.RUNNING
else:
state = power_state.SHUTDOWN
mock_get_info.return_value = hardware.InstanceInfo(state=state)
instance = self._create_instance(
{'config_drive': str(True),
'task_state': task_states.RESIZE_FINISH,
'flavor': {'swap': 500}})
bdi = {'block_device_mapping': []}
migration = objects.Migration()
migration.source_compute = 'fake-source-compute'
migration.dest_compute = 'fake-dest-compute'
migration.source_node = 'fake-source-node'
migration.dest_node = 'fake-dest-node'
image_meta = objects.ImageMeta.from_dict(self.test_image_meta)
# Source disks are raw to test conversion
disk_info = list(fake_disk_info_byname(instance, type='raw').values())
disk_info_text = jsonutils.dumps(disk_info)
backend = self.useFixture(fake_imagebackend.ImageBackendFixture())
mock_create_domain_and_network.return_value = \
libvirt_guest.Guest('fake_dom')
self.drvr.finish_migration(
context.get_admin_context(), migration, instance,
disk_info_text, [], image_meta,
resize_instance, bdi, power_on)
# Assert that we converted the root, ephemeral, and swap disks
instance_path = libvirt_utils.get_instance_path(instance)
convert_calls = [mock.call(os.path.join(instance_path, name))
for name in ('disk', 'disk.local', 'disk.swap')]
mock_raw_to_qcow2.assert_has_calls(convert_calls, any_order=True)
# Implicitly assert that we did not convert the config disk
self.assertEqual(len(convert_calls), mock_raw_to_qcow2.call_count)
disks = backend.disks
# Assert that we called cache() on kernel, ramdisk, disk,
# and disk.local.
# This results in creation of kernel, ramdisk, and disk.swap.
# This results in backing file check and resize of disk and disk.local.
for name in ('kernel', 'ramdisk', 'disk', 'disk.local', 'disk.swap'):
self.assertTrue(disks[name].cache.called,
'cache() not called for %s' % name)
# Assert that we created a snapshot for the root disk
root_disk = disks['disk']
self.assertTrue(root_disk.create_snap.called)
# Assert that we didn't import a config disk
# Note that some path currently creates a config disk object,
# but only uses it for an exists() check. Therefore the object may
# exist, but shouldn't have been imported.
if 'disk.config' in disks:
self.assertFalse(disks['disk.config'].import_file.called)
# We shouldn't be injecting data during migration
self.assertFalse(mock_inject_data.called)
# NOTE(mdbooth): If we wanted to check the generated xml, we could
# insert a hook here
mock_create_domain_and_network.assert_called_once_with(
mock.ANY, mock.ANY, instance, [],
block_device_info=bdi, power_on=power_on,
vifs_already_plugged=True, post_xml_callback=mock.ANY)
def test_finish_migration_resize(self):
with mock.patch('nova.virt.libvirt.guest.Guest.sync_guest_time'
) as mock_guest_time:
self._test_finish_migration(resize_instance=True)
self.assertTrue(mock_guest_time.called)
def test_finish_migration_power_on(self):
with mock.patch('nova.virt.libvirt.guest.Guest.sync_guest_time'
) as mock_guest_time:
self._test_finish_migration()
self.assertTrue(mock_guest_time.called)
def test_finish_migration_power_off(self):
self._test_finish_migration(power_on=False)
def _test_finish_revert_migration(self, power_on):
"""Test for nova.virt.libvirt.libvirt_driver.LivirtConnection
.finish_revert_migration.
"""
powered_on = power_on
self.fake_create_domain_called = False
def fake_execute(*args, **kwargs):
pass
def fake_plug_vifs(self, instance, network_info):
pass
def fake_create_domain(_self, context, xml, instance, network_info,
block_device_info=None, power_on=None,
vifs_already_plugged=None):
self.fake_create_domain_called = True
self.assertEqual(powered_on, power_on)
self.assertFalse(vifs_already_plugged)
return mock.MagicMock()
def fake_enable_hairpin(self):
pass
def fake_get_info(self, instance):
if powered_on:
return hardware.InstanceInfo(state=power_state.RUNNING)
else:
return hardware.InstanceInfo(state=power_state.SHUTDOWN)
def fake_to_xml(self, context, instance, network_info, disk_info,
image_meta=None, rescue=None,
block_device_info=None):
return ""
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver._get_guest_xml',
fake_to_xml)
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver.plug_vifs',
fake_plug_vifs)
self.stub_out('oslo_concurrency.processutils.execute', fake_execute)
fw = base_firewall.NoopFirewallDriver()
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver.firewall_driver',
fw)
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver.'
'_create_domain_and_network', fake_create_domain)
self.stub_out('nova.virt.libvirt.guest.Guest.enable_hairpin',
fake_enable_hairpin)
self.stub_out('nova.virt.libvirt.driver.LibvirtDriver.get_info',
fake_get_info)
self.stub_out('nova.utils.get_image_from_system_metadata',
lambda *a: self.test_image_meta)
with utils.tempdir() as tmpdir:
self.flags(instances_path=tmpdir)
ins_ref = self._create_instance()
os.mkdir(os.path.join(tmpdir, ins_ref['name']))
libvirt_xml_path = os.path.join(tmpdir,
ins_ref['name'],
'libvirt.xml')
f = open(libvirt_xml_path, 'w')
f.close()
self.drvr.finish_revert_migration(
context.get_admin_context(), ins_ref,
[], None, power_on)
self.assertTrue(self.fake_create_domain_called)
def test_finish_revert_migration_power_on(self):
self._test_finish_revert_migration(True)
def test_finish_revert_migration_power_off(self):
self._test_finish_revert_migration(False)
def _test_finish_revert_migration_after_crash(self, backup_made=True,
del_inst_failed=False):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr.image_backend = mock.Mock()
drvr.image_backend.by_name.return_value = drvr.image_backend
context = 'fake_context'
ins_ref = self._create_instance()
with test.nested(
mock.patch.object(os.path, 'exists', return_value=backup_made),
mock.patch.object(libvirt_utils, 'get_instance_path'),
mock.patch.object(os, 'rename'),
mock.patch.object(drvr, '_create_domain_and_network'),
mock.patch.object(drvr, '_get_guest_xml'),
mock.patch.object(shutil, 'rmtree'),
mock.patch.object(loopingcall, 'FixedIntervalLoopingCall'),
) as (mock_stat, mock_path, mock_rename, mock_cdn, mock_ggx,
mock_rmtree, mock_looping_call):
mock_path.return_value = '/fake/foo'
if del_inst_failed:
mock_rmtree.side_effect = OSError(errno.ENOENT,
'test exception')
drvr.finish_revert_migration(context, ins_ref, [])
if backup_made:
mock_rename.assert_called_once_with('/fake/foo_resize',
'/fake/foo')
else:
self.assertFalse(mock_rename.called)
def test_finish_revert_migration_after_crash(self):
self._test_finish_revert_migration_after_crash(backup_made=True)
def test_finish_revert_migration_after_crash_before_new(self):
self._test_finish_revert_migration_after_crash(backup_made=True)
def test_finish_revert_migration_after_crash_before_backup(self):
self._test_finish_revert_migration_after_crash(backup_made=False)
def test_finish_revert_migration_after_crash_delete_failed(self):
self._test_finish_revert_migration_after_crash(backup_made=True,
del_inst_failed=True)
def test_finish_revert_migration_preserves_disk_bus(self):
def fake_get_guest_xml(context, instance, network_info, disk_info,
image_meta, block_device_info=None):
self.assertEqual('ide', disk_info['disk_bus'])
image_meta = {"disk_format": "raw",
"properties": {"hw_disk_bus": "ide"}}
instance = self._create_instance()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with test.nested(
mock.patch.object(drvr, 'image_backend'),
mock.patch.object(drvr, '_create_domain_and_network'),
mock.patch.object(utils, 'get_image_from_system_metadata',
return_value=image_meta),
mock.patch.object(drvr, '_get_guest_xml',
side_effect=fake_get_guest_xml)):
drvr.finish_revert_migration('', instance, None, power_on=False)
def test_finish_revert_migration_snap_backend(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr.image_backend = mock.Mock()
drvr.image_backend.by_name.return_value = drvr.image_backend
ins_ref = self._create_instance()
with test.nested(
mock.patch.object(utils, 'get_image_from_system_metadata'),
mock.patch.object(drvr, '_create_domain_and_network'),
mock.patch.object(drvr, '_get_guest_xml')) as (
mock_image, mock_cdn, mock_ggx):
mock_image.return_value = {'disk_format': 'raw'}
drvr.finish_revert_migration('', ins_ref, None, power_on=False)
drvr.image_backend.rollback_to_snap.assert_called_once_with(
libvirt_utils.RESIZE_SNAPSHOT_NAME)
drvr.image_backend.remove_snap.assert_called_once_with(
libvirt_utils.RESIZE_SNAPSHOT_NAME)
def test_finish_revert_migration_snap_backend_snapshot_not_found(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr.image_backend = mock.Mock()
drvr.image_backend.by_name.return_value = drvr.image_backend
ins_ref = self._create_instance()
with test.nested(
mock.patch.object(utils, 'get_image_from_system_metadata'),
mock.patch.object(drvr, '_create_domain_and_network'),
mock.patch.object(drvr, '_get_guest_xml')) as (
mock_image, mock_cdn, mock_ggx):
mock_image.return_value = {'disk_format': 'raw'}
drvr.image_backend.rollback_to_snap.side_effect = (
exception.SnapshotNotFound(snapshot_id='testing'))
self.assertRaises(exception.SnapshotNotFound,
drvr.finish_revert_migration,
'', ins_ref, None, power_on=False)
drvr.image_backend.remove_snap.assert_not_called()
def test_finish_revert_migration_snap_backend_image_does_not_exist(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr.image_backend = mock.Mock()
drvr.image_backend.by_name.return_value = drvr.image_backend
drvr.image_backend.exists.return_value = False
ins_ref = self._create_instance()
with test.nested(
mock.patch.object(rbd_utils, 'RBDDriver'),
mock.patch.object(utils, 'get_image_from_system_metadata'),
mock.patch.object(drvr, '_create_domain_and_network'),
mock.patch.object(drvr, '_get_guest_xml')) as (
mock_rbd, mock_image, mock_cdn, mock_ggx):
mock_image.return_value = {'disk_format': 'raw'}
drvr.finish_revert_migration('', ins_ref, None, power_on=False)
self.assertFalse(drvr.image_backend.rollback_to_snap.called)
self.assertFalse(drvr.image_backend.remove_snap.called)
@mock.patch.object(shutil, 'rmtree')
def test_cleanup_failed_migration(self, mock_rmtree):
self.drvr._cleanup_failed_migration('/fake/inst')
mock_rmtree.assert_called_once_with('/fake/inst')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_cleanup_resize')
def test_confirm_migration(self, mock_cleanup):
ins_ref = self._create_instance()
self.drvr.confirm_migration(self.context, "migration_ref", ins_ref,
_fake_network_info(self, 1))
mock_cleanup.assert_called_once_with(
self.context, ins_ref, _fake_network_info(self, 1))
def test_cleanup_resize_same_host(self):
CONF.set_override('policy_dirs', [], group='oslo_policy')
ins_ref = self._create_instance({'host': CONF.host})
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr.image_backend = mock.Mock()
drvr.image_backend.by_name.return_value = drvr.image_backend
with test.nested(
mock.patch.object(os.path, 'exists'),
mock.patch.object(libvirt_utils, 'get_instance_path'),
mock.patch.object(shutil, 'rmtree')) as (
mock_exists, mock_get_path, mock_rmtree):
mock_exists.return_value = True
mock_get_path.return_value = '/fake/inst'
drvr._cleanup_resize(
self.context, ins_ref, _fake_network_info(self, 1))
mock_get_path.assert_called_once_with(ins_ref)
self.assertEqual(5, mock_rmtree.call_count)
def test_cleanup_resize_not_same_host(self):
CONF.set_override('policy_dirs', [], group='oslo_policy')
host = 'not' + CONF.host
ins_ref = self._create_instance({'host': host})
fake_net = _fake_network_info(self, 1)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with test.nested(
mock.patch('nova.compute.utils.is_volume_backed_instance',
return_value=False),
mock.patch.object(os.path, 'exists'),
mock.patch.object(libvirt_utils, 'get_instance_path'),
mock.patch.object(shutil, 'rmtree'),
mock.patch.object(drvr.image_backend, 'by_name',
new_callable=mock.NonCallableMock),
mock.patch.object(drvr, '_undefine_domain'),
mock.patch.object(drvr, 'unplug_vifs'),
mock.patch.object(drvr, 'unfilter_instance')
) as (mock_volume_backed, mock_exists, mock_get_path,
mock_rmtree, mock_image_by_name, mock_undef, mock_unplug,
mock_unfilter):
mock_exists.return_value = True
mock_get_path.return_value = '/fake/inst'
drvr._cleanup_resize(self.context, ins_ref, fake_net)
mock_get_path.assert_called_once_with(ins_ref)
self.assertEqual(5, mock_rmtree.call_count)
mock_undef.assert_called_once_with(ins_ref)
mock_unplug.assert_called_once_with(ins_ref, fake_net)
mock_unfilter.assert_called_once_with(ins_ref, fake_net)
def test_cleanup_resize_not_same_host_volume_backed(self):
"""Tests cleaning up after a resize is confirmed with a volume-backed
instance. The key point is that the instance base directory should not
be removed for volume-backed instances.
"""
CONF.set_override('policy_dirs', [], group='oslo_policy')
host = 'not' + CONF.host
ins_ref = self._create_instance({'host': host})
fake_net = _fake_network_info(self, 1)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr.image_backend = mock.Mock()
drvr.image_backend.by_name.return_value = drvr.image_backend
drvr.image_backend.exists.return_value = False
with test.nested(
mock.patch('nova.compute.utils.is_volume_backed_instance',
return_value=True),
mock.patch.object(os.path, 'exists'),
mock.patch.object(libvirt_utils, 'get_instance_path'),
mock.patch.object(shutil, 'rmtree'),
mock.patch.object(drvr, '_undefine_domain'),
mock.patch.object(drvr, 'unplug_vifs'),
mock.patch.object(drvr, 'unfilter_instance')
) as (mock_volume_backed, mock_exists, mock_get_path,
mock_rmtree, mock_undef, mock_unplug, mock_unfilter):
mock_exists.return_value = True
mock_get_path.return_value = '/fake/inst'
drvr._cleanup_resize(self.context, ins_ref, fake_net)
mock_get_path.assert_called_once_with(ins_ref)
self.assertEqual(5, mock_rmtree.call_count)
mock_undef.assert_called_once_with(ins_ref)
mock_unplug.assert_called_once_with(ins_ref, fake_net)
mock_unfilter.assert_called_once_with(ins_ref, fake_net)
def test_cleanup_resize_snap_backend(self):
CONF.set_override('policy_dirs', [], group='oslo_policy')
self.flags(images_type='rbd', group='libvirt')
ins_ref = self._create_instance({'host': CONF.host})
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr.image_backend = mock.Mock()
drvr.image_backend.by_name.return_value = drvr.image_backend
with test.nested(
mock.patch.object(os.path, 'exists'),
mock.patch.object(libvirt_utils, 'get_instance_path'),
mock.patch.object(shutil, 'rmtree'),
mock.patch.object(drvr.image_backend, 'remove_snap')) as (
mock_exists, mock_get_path, mock_rmtree, mock_remove):
mock_exists.return_value = True
mock_get_path.return_value = '/fake/inst'
drvr._cleanup_resize(
self.context, ins_ref, _fake_network_info(self, 1))
mock_get_path.assert_called_once_with(ins_ref)
mock_remove.assert_called_once_with(
libvirt_utils.RESIZE_SNAPSHOT_NAME)
self.assertEqual(5, mock_rmtree.call_count)
def test_cleanup_resize_snap_backend_image_does_not_exist(self):
CONF.set_override('policy_dirs', [], group='oslo_policy')
ins_ref = self._create_instance({'host': CONF.host})
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
drvr.image_backend = mock.Mock()
drvr.image_backend.by_name.return_value = drvr.image_backend
drvr.image_backend.exists.return_value = False
with test.nested(
mock.patch('nova.compute.utils.is_volume_backed_instance',
return_value=False),
mock.patch.object(os.path, 'exists'),
mock.patch.object(libvirt_utils, 'get_instance_path'),
mock.patch.object(shutil, 'rmtree'),
mock.patch.object(drvr.image_backend, 'remove_snap')) as (
mock_volume_backed, mock_exists, mock_get_path,
mock_rmtree, mock_remove):
mock_exists.return_value = True
mock_get_path.return_value = '/fake/inst'
drvr._cleanup_resize(
self.context, ins_ref, _fake_network_info(self, 1))
mock_get_path.assert_called_once_with(ins_ref)
self.assertFalse(mock_remove.called)
mock_rmtree.called_once_with('/fake/inst')
def test_get_instance_disk_info_exception(self):
instance = self._create_instance()
class FakeExceptionDomain(FakeVirtDomain):
def __init__(self):
super(FakeExceptionDomain, self).__init__()
def XMLDesc(self, flags):
raise fakelibvirt.libvirtError("Libvirt error")
def fake_get_domain(self, instance):
return FakeExceptionDomain()
self.stub_out('nova.virt.libvirt.host.Host._get_domain',
fake_get_domain)
self.assertRaises(exception.InstanceNotFound,
self.drvr.get_instance_disk_info,
instance)
@mock.patch('os.path.exists')
@mock.patch.object(lvm, 'list_volumes')
def test_lvm_disks(self, listlvs, exists):
instance = objects.Instance(uuid=uuids.instance, id=1)
self.flags(images_volume_group='vols', group='libvirt')
exists.return_value = True
listlvs.return_value = ['%s_foo' % uuids.instance,
'other-uuid_foo']
disks = self.drvr._lvm_disks(instance)
self.assertEqual(['/dev/vols/%s_foo' % uuids.instance], disks)
def test_is_booted_from_volume(self):
func = libvirt_driver.LibvirtDriver._is_booted_from_volume
bdm = []
bdi = {'block_device_mapping': bdm}
self.assertFalse(func(bdi))
bdm.append({'boot_index': -1})
self.assertFalse(func(bdi))
bdm.append({'boot_index': None})
self.assertFalse(func(bdi))
bdm.append({'boot_index': 1})
self.assertFalse(func(bdi))
bdm.append({'boot_index': 0})
self.assertTrue(func(bdi))
@mock.patch('nova.virt.libvirt.driver.imagebackend')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._inject_data')
@mock.patch('nova.virt.libvirt.driver.imagecache')
def test_data_not_injects_with_configdrive(self, mock_image, mock_inject,
mock_backend):
self.flags(inject_partition=-1, group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
# config_drive is True by default, configdrive.required_by()
# returns True
instance_ref = self._create_instance()
disk_images = {'image_id': None}
drvr._create_and_inject_local_root(self.context, instance_ref, False,
'', disk_images, get_injection_info(),
None)
self.assertFalse(mock_inject.called)
@mock.patch('nova.virt.netutils.get_injected_network_template')
@mock.patch('nova.virt.disk.api.inject_data')
@mock.patch.object(libvirt_driver.LibvirtDriver, "_conn")
def _test_inject_data(self, instance, injection_info, path, disk_params,
mock_conn, disk_inject_data, inj_network,
called=True):
class ImageBackend(object):
path = '/path'
def get_model(self, connection):
return imgmodel.LocalFileImage(self.path,
imgmodel.FORMAT_RAW)
def fake_inj_network(*args, **kwds):
return args[0] or None
inj_network.side_effect = fake_inj_network
image_backend = ImageBackend()
image_backend.path = path
with mock.patch.object(self.drvr.image_backend, 'by_name',
return_value=image_backend):
self.flags(inject_partition=0, group='libvirt')
self.drvr._inject_data(image_backend, instance, injection_info)
if called:
disk_inject_data.assert_called_once_with(
mock.ANY,
*disk_params,
partition=None, mandatory=('files',))
self.assertEqual(disk_inject_data.called, called)
def test_inject_data_adminpass(self):
self.flags(inject_password=True, group='libvirt')
instance = self._create_instance()
injection_info = get_injection_info(admin_pass='foobar')
disk_params = [
None, # key
None, # net
{}, # metadata
'foobar', # admin_pass
None, # files
]
self._test_inject_data(instance, injection_info, "/path", disk_params)
# Test with the configuration setted to false.
self.flags(inject_password=False, group='libvirt')
self._test_inject_data(instance, injection_info, "/path", disk_params,
called=False)
def test_inject_data_key(self):
instance = self._create_instance(params={'key_data': 'key-content'})
injection_info = get_injection_info()
self.flags(inject_key=True, group='libvirt')
disk_params = [
'key-content', # key
None, # net
{}, # metadata
None, # admin_pass
None, # files
]
self._test_inject_data(instance, injection_info, "/path",
disk_params)
# Test with the configuration setted to false.
self.flags(inject_key=False, group='libvirt')
self._test_inject_data(instance, injection_info, "/path", disk_params,
called=False)
def test_inject_data_metadata(self):
instance = self._create_instance(params={'metadata': {'data': 'foo'}})
injection_info = get_injection_info()
disk_params = [
None, # key
None, # net
{'data': 'foo'}, # metadata
None, # admin_pass
None, # files
]
self._test_inject_data(instance, injection_info, "/path", disk_params)
def test_inject_data_files(self):
instance = self._create_instance()
injection_info = get_injection_info(files=['file1', 'file2'])
disk_params = [
None, # key
None, # net
{}, # metadata
None, # admin_pass
['file1', 'file2'], # files
]
self._test_inject_data(instance, injection_info, "/path", disk_params)
def test_inject_data_net(self):
instance = self._create_instance()
injection_info = get_injection_info(network_info={'net': 'eno1'})
disk_params = [
None, # key
{'net': 'eno1'}, # net
{}, # metadata
None, # admin_pass
None, # files
]
self._test_inject_data(instance, injection_info, "/path", disk_params)
def test_inject_not_exist_image(self):
instance = self._create_instance()
injection_info = get_injection_info()
disk_params = [
'key-content', # key
None, # net
None, # metadata
None, # admin_pass
None, # files
]
self._test_inject_data(instance, injection_info, "/fail/path",
disk_params, called=False)
def test_attach_interface_build_metadata_fails(self):
instance = self._create_instance()
network_info = _fake_network_info(self, 1)
domain = FakeVirtDomain(fake_xml="""
<domain type='kvm'>
<devices>
<interface type='bridge'>
<mac address='52:54:00:f6:35:8f'/>
<model type='virtio'/>
<source bridge='br0'/>
<target dev='tap12345678'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x03' function='0x0'/>
</interface>
</devices>
</domain>""")
fake_image_meta = objects.ImageMeta.from_dict(
{'id': instance.image_ref})
expected = self.drvr.vif_driver.get_config(
instance, network_info[0], fake_image_meta, instance.flavor,
CONF.libvirt.virt_type, self.drvr._host)
with test.nested(
mock.patch.object(host.Host, '_get_domain', return_value=domain),
mock.patch.object(self.drvr.firewall_driver,
'setup_basic_filtering'),
mock.patch.object(domain, 'attachDeviceFlags'),
mock.patch.object(domain, 'info',
return_value=[power_state.RUNNING, 1, 2, 3, 4]),
mock.patch.object(self.drvr.vif_driver, 'get_config',
return_value=expected),
mock.patch.object(self.drvr, '_build_device_metadata',
side_effect=exception.NovaException),
mock.patch.object(self.drvr, 'detach_interface'),
) as (
mock_get_domain, mock_setup_basic_filtering,
mock_attach_device_flags, mock_info, mock_get_config,
mock_build_device_metadata, mock_detach_interface
):
self.assertRaises(exception.InterfaceAttachFailed,
self.drvr.attach_interface, self.context,
instance, fake_image_meta, network_info[0])
mock_get_domain.assert_called_with(instance)
mock_info.assert_called_with()
mock_setup_basic_filtering.assert_called_with(
instance, [network_info[0]])
mock_get_config.assert_called_with(
instance, network_info[0], fake_image_meta, instance.flavor,
CONF.libvirt.virt_type, self.drvr._host)
mock_build_device_metadata.assert_called_with(self.context,
instance)
mock_attach_device_flags.assert_called_with(
expected.to_xml(),
flags=(fakelibvirt.VIR_DOMAIN_AFFECT_CONFIG |
fakelibvirt.VIR_DOMAIN_AFFECT_LIVE))
mock_detach_interface.assert_called_with(self.context, instance,
network_info[0])
@mock.patch.object(objects.Instance, 'save')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_build_device_metadata')
@mock.patch.object(FakeVirtDomain, 'info')
@mock.patch.object(FakeVirtDomain, 'attachDeviceFlags')
@mock.patch.object(host.Host, '_get_domain')
def _test_attach_interface(self, power_state, expected_flags,
mock_get_domain, mock_attach,
mock_info, mock_build, mock_save):
instance = self._create_instance()
network_info = _fake_network_info(self, 1)
domain = FakeVirtDomain(fake_xml="""
<domain type='kvm'>
<devices>
<interface type='bridge'>
<mac address='52:54:00:f6:35:8f'/>
<model type='virtio'/>
<source bridge='br0'/>
<target dev='tap12345678'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x03' function='0x0'/>
</interface>
</devices>
</domain>""")
mock_get_domain.return_value = domain
mock_info.return_value = [power_state, 1, 2, 3, 4]
fake_image_meta = objects.ImageMeta.from_dict(
{'id': instance.image_ref})
expected = self.drvr.vif_driver.get_config(
instance, network_info[0], fake_image_meta, instance.flavor,
CONF.libvirt.virt_type, self.drvr._host)
mock_build.return_value = objects.InstanceDeviceMetadata()
with test.nested(
mock.patch.object(self.drvr.vif_driver, 'get_config',
return_value=expected),
mock.patch.object(self.drvr.firewall_driver,
'setup_basic_filtering')
) as (mock_get_config, mock_setup):
self.drvr.attach_interface(
self.context, instance, fake_image_meta, network_info[0])
mock_get_config.assert_called_once_with(
instance, network_info[0], test.MatchType(objects.ImageMeta),
test.MatchType(objects.Flavor), CONF.libvirt.virt_type,
self.drvr._host)
mock_get_domain.assert_called_once_with(instance)
mock_info.assert_called_once_with()
mock_setup.assert_called_once_with(instance, [network_info[0]])
mock_build.assert_called_once_with(self.context, instance)
mock_save.assert_called_once_with()
mock_attach.assert_called_once_with(expected.to_xml(),
flags=expected_flags)
def test_attach_interface_with_running_instance(self):
self._test_attach_interface(
power_state.RUNNING,
(fakelibvirt.VIR_DOMAIN_AFFECT_CONFIG |
fakelibvirt.VIR_DOMAIN_AFFECT_LIVE))
def test_attach_interface_with_pause_instance(self):
self._test_attach_interface(
power_state.PAUSED,
(fakelibvirt.VIR_DOMAIN_AFFECT_CONFIG |
fakelibvirt.VIR_DOMAIN_AFFECT_LIVE))
def test_attach_interface_with_shutdown_instance(self):
self._test_attach_interface(
power_state.SHUTDOWN, fakelibvirt.VIR_DOMAIN_AFFECT_CONFIG)
def _test_detach_interface(self, power_state, expected_flags,
device_not_found=False):
# setup some mocks
instance = self._create_instance()
network_info = _fake_network_info(self, 1)
domain = FakeVirtDomain(fake_xml="""
<domain type='kvm'>
<devices>
<interface type='bridge'>
<mac address='52:54:00:f6:35:8f'/>
<model type='virtio'/>
<source bridge='br0'/>
<target dev='tap12345678'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x03' function='0x0'/>
</interface>
</devices>
</domain>""",
info=[power_state, 1, 2, 3, 4])
guest = libvirt_guest.Guest(domain)
expected_cfg = vconfig.LibvirtConfigGuestInterface()
expected_cfg.parse_str("""
<interface type='bridge'>
<mac address='52:54:00:f6:35:8f'/>
<model type='virtio'/>
<source bridge='br0'/>
<target dev='tap12345678'/>
</interface>""")
if device_not_found:
# This will trigger detach_device_with_retry to raise
# DeviceNotFound
get_interface_calls = [expected_cfg, None]
else:
get_interface_calls = [expected_cfg, expected_cfg, None, None]
with test.nested(
mock.patch.object(host.Host, 'get_guest', return_value=guest),
mock.patch.object(self.drvr.vif_driver, 'get_config',
return_value=expected_cfg),
# This is called multiple times in a retry loop so we use a
# side_effect to simulate the calls to stop the loop.
mock.patch.object(guest, 'get_interface_by_cfg',
side_effect=get_interface_calls),
mock.patch.object(domain, 'detachDeviceFlags'),
mock.patch('nova.virt.libvirt.driver.LOG.warning')
) as (
mock_get_guest, mock_get_config,
mock_get_interface, mock_detach_device_flags,
mock_warning
):
# run the detach method
self.drvr.detach_interface(self.context, instance, network_info[0])
# make our assertions
mock_get_guest.assert_called_once_with(instance)
mock_get_config.assert_called_once_with(
instance, network_info[0], test.MatchType(objects.ImageMeta),
test.MatchType(objects.Flavor), CONF.libvirt.virt_type,
self.drvr._host)
mock_get_interface.assert_has_calls(
[mock.call(expected_cfg) for x in range(len(get_interface_calls))])
if device_not_found:
mock_detach_device_flags.assert_not_called()
self.assertTrue(mock_warning.called)
else:
mock_detach_device_flags.assert_called_once_with(
expected_cfg.to_xml(), flags=expected_flags)
mock_warning.assert_not_called()
def test_detach_interface_with_running_instance(self):
self._test_detach_interface(
power_state.RUNNING,
expected_flags=(fakelibvirt.VIR_DOMAIN_AFFECT_CONFIG |
fakelibvirt.VIR_DOMAIN_AFFECT_LIVE))
def test_detach_interface_with_running_instance_device_not_found(self):
"""Tests that the interface is detached before we try to detach it.
"""
self._test_detach_interface(
power_state.RUNNING,
expected_flags=(fakelibvirt.VIR_DOMAIN_AFFECT_CONFIG |
fakelibvirt.VIR_DOMAIN_AFFECT_LIVE),
device_not_found=True)
def test_detach_interface_with_pause_instance(self):
self._test_detach_interface(
power_state.PAUSED,
expected_flags=(fakelibvirt.VIR_DOMAIN_AFFECT_CONFIG |
fakelibvirt.VIR_DOMAIN_AFFECT_LIVE))
def test_detach_interface_with_shutdown_instance(self):
self._test_detach_interface(
power_state.SHUTDOWN,
expected_flags=(fakelibvirt.VIR_DOMAIN_AFFECT_CONFIG))
@mock.patch('nova.virt.libvirt.driver.LOG')
def test_detach_interface_device_not_found(self, mock_log):
# Asserts that we don't log an error when the interface device is not
# found on the guest after a libvirt error during detach.
instance = self._create_instance()
vif = _fake_network_info(self, 1)[0]
guest = mock.Mock(spec=libvirt_guest.Guest)
guest.get_power_state = mock.Mock()
self.drvr._host.get_guest = mock.Mock(return_value=guest)
error = fakelibvirt.libvirtError(
'no matching network device was found')
error.err = (fakelibvirt.VIR_ERR_OPERATION_FAILED,)
guest.detach_device = mock.Mock(side_effect=error)
# mock out that get_interface_by_cfg doesn't find the interface
guest.get_interface_by_cfg = mock.Mock(return_value=None)
self.drvr.detach_interface(self.context, instance, vif)
# an error shouldn't be logged, but a warning should be logged
self.assertFalse(mock_log.error.called)
self.assertEqual(1, mock_log.warning.call_count)
self.assertIn('the device is no longer found on the guest',
six.text_type(mock_log.warning.call_args[0]))
@mock.patch.object(FakeVirtDomain, 'info')
@mock.patch.object(FakeVirtDomain, 'detachDeviceFlags')
@mock.patch.object(host.Host, '_get_domain')
def test_detach_interface_device_with_same_mac_address(
self, mock_get_domain, mock_detach, mock_info):
instance = self._create_instance()
network_info = _fake_network_info(self, 1)
domain = FakeVirtDomain(fake_xml="""
<domain type='kvm'>
<devices>
<interface type='bridge'>
<mac address='52:54:00:f6:35:8f'/>
<model type='virtio'/>
<source bridge='br0'/>
<target dev='tap12345678'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x03' function='0x0'/>
</interface>
<interface type='bridge'>
<mac address='52:54:00:f6:35:8f'/>
<model type='virtio'/>
<source bridge='br1'/>
<target dev='tap87654321'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x03' function='0x1'/>
</interface>
</devices>
</domain>""")
mock_get_domain.return_value = domain
mock_info.return_value = [power_state.RUNNING, 1, 2, 3, 4]
expected = vconfig.LibvirtConfigGuestInterface()
expected.parse_str("""
<interface type='bridge'>
<mac address='52:54:00:f6:35:8f'/>
<model type='virtio'/>
<source bridge='br0'/>
<target dev='tap12345678'/>
</interface>""")
expected_flags = (fakelibvirt.VIR_DOMAIN_AFFECT_CONFIG |
fakelibvirt.VIR_DOMAIN_AFFECT_LIVE)
with test.nested(
mock.patch.object(libvirt_guest.Guest, 'get_interface_by_cfg',
side_effect=[expected, expected, None, None]),
mock.patch.object(self.drvr.vif_driver, 'get_config',
return_value=expected),
mock.patch.object(self.drvr.firewall_driver,
'setup_basic_filtering')
) as (mock_get_interface, mock_get_config, mock_setup):
self.drvr.detach_interface(self.context, instance, network_info[0])
mock_get_interface.assert_has_calls([mock.call(expected)] * 3)
self.assertEqual(4, mock_get_interface.call_count)
mock_get_config.assert_called_once_with(
instance, network_info[0], test.MatchType(objects.ImageMeta),
test.MatchType(objects.Flavor), CONF.libvirt.virt_type,
self.drvr._host)
mock_setup.assert_not_called()
mock_get_domain.assert_called_once_with(instance)
mock_info.assert_called_once_with()
mock_detach.assert_called_once_with(expected.to_xml(),
flags=expected_flags)
@mock.patch('nova.virt.libvirt.LibvirtDriver.'
'_get_all_assigned_mediated_devices')
@mock.patch('nova.virt.libvirt.utils.write_to_file')
# NOTE(mdbooth): The following 4 mocks are required to execute
# get_guest_xml().
@mock.patch.object(libvirt_driver.LibvirtDriver, '_set_host_enabled')
@mock.patch.object(libvirt_driver.LibvirtDriver, '_build_device_metadata')
@mock.patch('nova.privsep.utils.supports_direct_io')
@mock.patch('nova.api.metadata.base.InstanceMetadata')
def _test_rescue(self, instance,
mock_instance_metadata, mock_supports_direct_io,
mock_build_device_metadata, mock_set_host_enabled,
mock_write_to_file,
mock_get_mdev,
exists=None):
self.flags(instances_path=self.useFixture(fixtures.TempDir()).path)
mock_build_device_metadata.return_value = None
mock_supports_direct_io.return_value = True
mock_get_mdev.return_value = {uuids.mdev1: uuids.inst1}
backend = self.useFixture(
fake_imagebackend.ImageBackendFixture(exists=exists))
image_meta = objects.ImageMeta.from_dict(
{'id': uuids.image_id, 'name': 'fake'})
network_info = _fake_network_info(self, 1)
rescue_password = 'fake_password'
domain_xml = [None]
def fake_create_domain(xml=None, domain=None, power_on=True,
pause=False, post_xml_callback=None):
domain_xml[0] = xml
if post_xml_callback is not None:
post_xml_callback()
with mock.patch.object(
self.drvr, '_create_domain',
side_effect=fake_create_domain) as mock_create_domain:
self.drvr.rescue(self.context, instance,
network_info, image_meta, rescue_password)
self.assertTrue(mock_create_domain.called)
return backend, etree.fromstring(domain_xml[0])
def test_rescue(self):
instance = self._create_instance({'config_drive': None})
backend, doc = self._test_rescue(instance)
# Assert that we created the expected set of disks, and no others
self.assertEqual(['disk.rescue', 'kernel.rescue', 'ramdisk.rescue'],
sorted(backend.created_disks.keys()))
disks = backend.disks
kernel_ramdisk = [disks[name + '.rescue']
for name in ('kernel', 'ramdisk')]
# Assert that kernel and ramdisk were both created as raw
for disk in kernel_ramdisk:
self.assertEqual('raw', disk.image_type)
# Assert that the root rescue disk was created as the default type
self.assertIsNone(disks['disk.rescue'].image_type)
# We expect the generated domain to contain disk.rescue and
# disk, in that order
expected_domain_disk_paths = [disks[name].path for name in
('disk.rescue', 'disk')]
domain_disk_paths = doc.xpath('devices/disk/source/@file')
self.assertEqual(expected_domain_disk_paths, domain_disk_paths)
# The generated domain xml should contain the rescue kernel
# and ramdisk
expected_kernel_ramdisk_paths = [os.path.join(CONF.instances_path,
disk.path) for disk
in kernel_ramdisk]
kernel_ramdisk_paths = \
doc.xpath('os/*[self::initrd|self::kernel]/text()')
self.assertEqual(expected_kernel_ramdisk_paths,
kernel_ramdisk_paths)
# The generated domain XML should also contain any existing mdev
self.assertEqual(
[uuids.mdev1],
doc.xpath("devices/*[@type='mdev']/source/address/@uuid"))
@mock.patch('nova.virt.configdrive.ConfigDriveBuilder._make_iso9660')
def test_rescue_config_drive(self, mock_mkisofs):
instance = self._create_instance({'config_drive': str(True)})
backend, doc = self._test_rescue(
instance, exists=lambda name: name != 'disk.config.rescue')
# Assert that we created the expected set of disks, and no others
self.assertEqual(['disk.config.rescue', 'disk.rescue', 'kernel.rescue',
'ramdisk.rescue'],
sorted(backend.created_disks.keys()))
disks = backend.disks
config_disk = disks['disk.config.rescue']
kernel_ramdisk = [disks[name + '.rescue']
for name in ('kernel', 'ramdisk')]
# Assert that we imported the config disk
self.assertTrue(config_disk.import_file.called)
# Assert that the config disk, kernel and ramdisk were created as raw
for disk in [config_disk] + kernel_ramdisk:
self.assertEqual('raw', disk.image_type)
# Assert that the root rescue disk was created as the default type
self.assertIsNone(disks['disk.rescue'].image_type)
# We expect the generated domain to contain disk.rescue, disk, and
# disk.config.rescue in that order
expected_domain_disk_paths = [disks[name].path for name
in ('disk.rescue', 'disk',
'disk.config.rescue')]
domain_disk_paths = doc.xpath('devices/disk/source/@file')
self.assertEqual(expected_domain_disk_paths, domain_disk_paths)
# The generated domain xml should contain the rescue kernel
# and ramdisk
expected_kernel_ramdisk_paths = [os.path.join(CONF.instances_path,
disk.path)
for disk in kernel_ramdisk]
kernel_ramdisk_paths = \
doc.xpath('os/*[self::initrd|self::kernel]/text()')
self.assertEqual(expected_kernel_ramdisk_paths,
kernel_ramdisk_paths)
@mock.patch.object(libvirt_utils, 'get_instance_path')
@mock.patch.object(libvirt_utils, 'load_file')
@mock.patch.object(host.Host, '_get_domain')
def _test_unrescue(self, instance, mock_get_domain, mock_load_file,
mock_get_instance_path):
dummyxml = ("<domain type='kvm'><name>instance-0000000a</name>"
"<devices>"
"<disk type='block' device='disk'>"
"<source dev='/dev/some-vg/some-lv'/>"
"<target dev='vda' bus='virtio'/></disk>"
"</devices></domain>")
mock_get_instance_path.return_value = '/path'
fake_dom = FakeVirtDomain(fake_xml=dummyxml)
mock_get_domain.return_value = fake_dom
mock_load_file.return_value = "fake_unrescue_xml"
unrescue_xml_path = os.path.join('/path', 'unrescue.xml')
rescue_file = os.path.join('/path', 'rescue.file')
rescue_dir = os.path.join('/path', 'rescue.dir')
def isdir_sideeffect(*args, **kwargs):
if args[0] == '/path/rescue.file':
return False
if args[0] == '/path/rescue.dir':
return True
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
with test.nested(
mock.patch.object(libvirt_utils, 'write_to_file'),
mock.patch.object(drvr, '_destroy'),
mock.patch.object(drvr, '_create_domain'),
mock.patch.object(os, 'unlink'),
mock.patch.object(shutil, 'rmtree'),
mock.patch.object(os.path, "isdir",
side_effect=isdir_sideeffect),
mock.patch.object(drvr, '_lvm_disks',
return_value=['lvm.rescue']),
mock.patch.object(lvm, 'remove_volumes'),
mock.patch.object(glob, 'iglob',
return_value=[rescue_file, rescue_dir])
) as (mock_write, mock_destroy, mock_create, mock_del,
mock_rmtree, mock_isdir, mock_lvm_disks,
mock_remove_volumes, mock_glob):
drvr.unrescue(instance, None)
mock_destroy.assert_called_once_with(instance)
mock_create.assert_called_once_with("fake_unrescue_xml",
fake_dom)
self.assertEqual(2, mock_del.call_count)
self.assertEqual(unrescue_xml_path,
mock_del.call_args_list[0][0][0])
self.assertEqual(1, mock_rmtree.call_count)
self.assertEqual(rescue_dir, mock_rmtree.call_args_list[0][0][0])
self.assertEqual(rescue_file, mock_del.call_args_list[1][0][0])
mock_remove_volumes.assert_called_once_with(['lvm.rescue'])
def test_unrescue(self):
instance = objects.Instance(uuid=uuids.instance, id=1)
self._test_unrescue(instance)
@mock.patch.object(rbd_utils.RBDDriver, '_destroy_volume')
@mock.patch.object(rbd_utils.RBDDriver, '_disconnect_from_rados')
@mock.patch.object(rbd_utils.RBDDriver, '_connect_to_rados')
@mock.patch.object(rbd_utils, 'rbd')
@mock.patch.object(rbd_utils, 'rados')
def test_unrescue_rbd(self, mock_rados, mock_rbd, mock_connect,
mock_disconnect, mock_destroy_volume):
self.flags(images_type='rbd', group='libvirt')
mock_connect.return_value = mock.MagicMock(), mock.MagicMock()
instance = objects.Instance(uuid=uuids.instance, id=1)
all_volumes = [uuids.other_instance + '_disk',
uuids.other_instance + '_disk.rescue',
instance.uuid + '_disk',
instance.uuid + '_disk.rescue']
mock_rbd.RBD.return_value.list.return_value = all_volumes
self._test_unrescue(instance)
mock_destroy_volume.assert_called_once_with(
mock.ANY, instance.uuid + '_disk.rescue')
@mock.patch('shutil.rmtree')
@mock.patch('os.rename')
@mock.patch('os.path.exists')
@mock.patch('nova.virt.libvirt.utils.get_instance_path')
def test_delete_instance_files(self, mock_get_instance_path,
mock_exists, mock_rename,
mock_shutil):
mock_get_instance_path.return_value = '/path'
instance = objects.Instance(uuid=uuids.instance, id=1)
mock_exists.side_effect = [False, False, True, False]
result = self.drvr.delete_instance_files(instance)
mock_get_instance_path.assert_called_with(instance)
mock_rename.assert_called_with('/path', '/path_del')
mock_shutil.assert_called_with('/path_del')
self.assertTrue(result)
@mock.patch('shutil.rmtree')
@mock.patch('os.rename')
@mock.patch('os.path.exists')
@mock.patch('os.kill')
@mock.patch('nova.virt.libvirt.utils.get_instance_path')
def test_delete_instance_files_kill_running(
self, mock_get_instance_path, mock_kill, mock_exists,
mock_rename, mock_shutil):
mock_get_instance_path.return_value = '/path'
instance = objects.Instance(uuid=uuids.instance, id=1)
self.drvr.job_tracker.jobs[instance.uuid] = [3, 4]
mock_exists.side_effect = [False, False, True, False]
result = self.drvr.delete_instance_files(instance)
mock_get_instance_path.assert_called_with(instance)
mock_rename.assert_called_with('/path', '/path_del')
mock_kill.assert_has_calls(
[mock.call(3, signal.SIGKILL), mock.call(3, 0),
mock.call(4, signal.SIGKILL), mock.call(4, 0)])
mock_shutil.assert_called_with('/path_del')
self.assertTrue(result)
self.assertNotIn(instance.uuid, self.drvr.job_tracker.jobs)
@mock.patch('shutil.rmtree')
@mock.patch('os.rename')
@mock.patch('os.path.exists')
@mock.patch('nova.virt.libvirt.utils.get_instance_path')
def test_delete_instance_files_resize(self, mock_get_instance_path,
mock_exists, mock_rename,
mock_shutil):
mock_get_instance_path.return_value = '/path'
instance = objects.Instance(uuid=uuids.instance, id=1)
mock_rename.side_effect = [Exception(), None]
mock_exists.side_effect = [False, False, True, False]
result = self.drvr.delete_instance_files(instance)
mock_get_instance_path.assert_called_with(instance)
expected = [mock.call('/path', '/path_del'),
mock.call('/path_resize', '/path_del')]
self.assertEqual(expected, mock_rename.mock_calls)
mock_shutil.assert_called_with('/path_del')
self.assertTrue(result)
@mock.patch('shutil.rmtree')
@mock.patch('os.rename')
@mock.patch('os.path.exists')
@mock.patch('nova.virt.libvirt.utils.get_instance_path')
def test_delete_instance_files_failed(self, mock_get_instance_path,
mock_exists, mock_rename,
mock_shutil):
mock_get_instance_path.return_value = '/path'
instance = objects.Instance(uuid=uuids.instance, id=1)
mock_exists.side_effect = [False, False, True, True]
result = self.drvr.delete_instance_files(instance)
mock_get_instance_path.assert_called_with(instance)
mock_rename.assert_called_with('/path', '/path_del')
mock_shutil.assert_called_with('/path_del')
self.assertFalse(result)
@mock.patch('shutil.rmtree')
@mock.patch('os.rename')
@mock.patch('os.path.exists')
@mock.patch('nova.virt.libvirt.utils.get_instance_path')
def test_delete_instance_files_mv_failed(self, mock_get_instance_path,
mock_exists, mock_rename,
mock_shutil):
mock_get_instance_path.return_value = '/path'
instance = objects.Instance(uuid=uuids.instance, id=1)
mock_rename.side_effect = Exception()
mock_exists.side_effect = [True, True]
result = self.drvr.delete_instance_files(instance)
mock_get_instance_path.assert_called_with(instance)
expected = [mock.call('/path', '/path_del'),
mock.call('/path_resize', '/path_del')] * 2
self.assertEqual(expected, mock_rename.mock_calls)
self.assertFalse(result)
@mock.patch('shutil.rmtree')
@mock.patch('os.rename')
@mock.patch('os.path.exists')
@mock.patch('nova.virt.libvirt.utils.get_instance_path')
def test_delete_instance_files_resume(self, mock_get_instance_path,
mock_exists, mock_rename,
mock_shutil):
mock_get_instance_path.return_value = '/path'
instance = objects.Instance(uuid=uuids.instance, id=1)
mock_rename.side_effect = Exception()
mock_exists.side_effect = [False, False, True, False]
result = self.drvr.delete_instance_files(instance)
mock_get_instance_path.assert_called_with(instance)
expected = [mock.call('/path', '/path_del'),
mock.call('/path_resize', '/path_del')] * 2
self.assertEqual(expected, mock_rename.mock_calls)
self.assertTrue(result)
@mock.patch('shutil.rmtree')
@mock.patch('os.rename')
@mock.patch('os.path.exists')
@mock.patch('nova.virt.libvirt.utils.get_instance_path')
def test_delete_instance_files_none(self, mock_get_instance_path,
mock_exists, mock_rename,
mock_shutil):
mock_get_instance_path.return_value = '/path'
instance = objects.Instance(uuid=uuids.instance, id=1)
mock_rename.side_effect = Exception()
mock_exists.side_effect = [False, False, False, False]
result = self.drvr.delete_instance_files(instance)
mock_get_instance_path.assert_called_with(instance)
expected = [mock.call('/path', '/path_del'),
mock.call('/path_resize', '/path_del')] * 2
self.assertEqual(expected, mock_rename.mock_calls)
self.assertEqual(0, len(mock_shutil.mock_calls))
self.assertTrue(result)
@mock.patch('shutil.rmtree')
@mock.patch('os.rename')
@mock.patch('os.path.exists')
@mock.patch('nova.virt.libvirt.utils.get_instance_path')
def test_delete_instance_files_concurrent(self, mock_get_instance_path,
mock_exists, mock_rename,
mock_shutil):
mock_get_instance_path.return_value = '/path'
instance = objects.Instance(uuid=uuids.instance, id=1)
mock_rename.side_effect = [Exception(), Exception(), None]
mock_exists.side_effect = [False, False, True, False]
result = self.drvr.delete_instance_files(instance)
mock_get_instance_path.assert_called_with(instance)
expected = [mock.call('/path', '/path_del'),
mock.call('/path_resize', '/path_del')]
expected.append(expected[0])
self.assertEqual(expected, mock_rename.mock_calls)
mock_shutil.assert_called_with('/path_del')
self.assertTrue(result)
def _assert_on_id_map(self, idmap, klass, start, target, count):
self.assertIsInstance(idmap, klass)
self.assertEqual(start, idmap.start)
self.assertEqual(target, idmap.target)
self.assertEqual(count, idmap.count)
def test_get_id_maps(self):
self.flags(virt_type="lxc", group="libvirt")
CONF.libvirt.virt_type = "lxc"
CONF.libvirt.uid_maps = ["0:10000:1", "1:20000:10"]
CONF.libvirt.gid_maps = ["0:10000:1", "1:20000:10"]
idmaps = self.drvr._get_guest_idmaps()
self.assertEqual(len(idmaps), 4)
self._assert_on_id_map(idmaps[0],
vconfig.LibvirtConfigGuestUIDMap,
0, 10000, 1)
self._assert_on_id_map(idmaps[1],
vconfig.LibvirtConfigGuestUIDMap,
1, 20000, 10)
self._assert_on_id_map(idmaps[2],
vconfig.LibvirtConfigGuestGIDMap,
0, 10000, 1)
self._assert_on_id_map(idmaps[3],
vconfig.LibvirtConfigGuestGIDMap,
1, 20000, 10)
def test_get_id_maps_not_lxc(self):
CONF.libvirt.uid_maps = ["0:10000:1", "1:20000:10"]
CONF.libvirt.gid_maps = ["0:10000:1", "1:20000:10"]
idmaps = self.drvr._get_guest_idmaps()
self.assertEqual(0, len(idmaps))
def test_get_id_maps_only_uid(self):
self.flags(virt_type="lxc", group="libvirt")
CONF.libvirt.uid_maps = ["0:10000:1", "1:20000:10"]
CONF.libvirt.gid_maps = []
idmaps = self.drvr._get_guest_idmaps()
self.assertEqual(2, len(idmaps))
self._assert_on_id_map(idmaps[0],
vconfig.LibvirtConfigGuestUIDMap,
0, 10000, 1)
self._assert_on_id_map(idmaps[1],
vconfig.LibvirtConfigGuestUIDMap,
1, 20000, 10)
def test_get_id_maps_only_gid(self):
self.flags(virt_type="lxc", group="libvirt")
CONF.libvirt.uid_maps = []
CONF.libvirt.gid_maps = ["0:10000:1", "1:20000:10"]
idmaps = self.drvr._get_guest_idmaps()
self.assertEqual(2, len(idmaps))
self._assert_on_id_map(idmaps[0],
vconfig.LibvirtConfigGuestGIDMap,
0, 10000, 1)
self._assert_on_id_map(idmaps[1],
vconfig.LibvirtConfigGuestGIDMap,
1, 20000, 10)
def test_instance_on_disk(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(uuid=uuids.instance, id=1)
self.assertFalse(drvr.instance_on_disk(instance))
def test_instance_on_disk_rbd(self):
self.flags(images_type='rbd', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
instance = objects.Instance(uuid=uuids.instance, id=1)
self.assertTrue(drvr.instance_on_disk(instance))
def test_get_disk_xml(self):
dom_xml = """
<domain type="kvm">
<devices>
<disk type="file">
<source file="disk1_file"/>
<target dev="vda" bus="virtio"/>
<serial>0e38683e-f0af-418f-a3f1-6b67ea0f919d</serial>
</disk>
<disk type="block">
<source dev="/path/to/dev/1"/>
<target dev="vdb" bus="virtio" serial="1234"/>
</disk>
</devices>
</domain>
"""
diska_xml = """<disk type="file" device="disk">
<source file="disk1_file"/>
<target bus="virtio" dev="vda"/>
<serial>0e38683e-f0af-418f-a3f1-6b67ea0f919d</serial>
</disk>"""
diskb_xml = """<disk type="block" device="disk">
<source dev="/path/to/dev/1"/>
<target bus="virtio" dev="vdb"/>
</disk>"""
dom = mock.MagicMock()
dom.XMLDesc.return_value = dom_xml
guest = libvirt_guest.Guest(dom)
# NOTE(gcb): etree.tostring(node) returns an extra line with
# some white spaces, need to strip it.
actual_diska_xml = guest.get_disk('vda').to_xml()
self.assertEqual(diska_xml.strip(), actual_diska_xml.strip())
actual_diskb_xml = guest.get_disk('vdb').to_xml()
self.assertEqual(diskb_xml.strip(), actual_diskb_xml.strip())
self.assertIsNone(guest.get_disk('vdc'))
def test_vcpu_model_from_config(self):
drv = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
vcpu_model = drv._cpu_config_to_vcpu_model(None, None)
self.assertIsNone(vcpu_model)
cpu = vconfig.LibvirtConfigGuestCPU()
feature1 = vconfig.LibvirtConfigGuestCPUFeature()
feature2 = vconfig.LibvirtConfigGuestCPUFeature()
feature1.name = 'sse'
feature1.policy = fields.CPUFeaturePolicy.REQUIRE
feature2.name = 'aes'
feature2.policy = fields.CPUFeaturePolicy.REQUIRE
cpu.features = set([feature1, feature2])
cpu.mode = fields.CPUMode.CUSTOM
cpu.sockets = 1
cpu.cores = 2
cpu.threads = 4
vcpu_model = drv._cpu_config_to_vcpu_model(cpu, None)
self.assertEqual(fields.CPUMatch.EXACT, vcpu_model.match)
self.assertEqual(fields.CPUMode.CUSTOM, vcpu_model.mode)
self.assertEqual(4, vcpu_model.topology.threads)
self.assertEqual(set(['sse', 'aes']),
set([f.name for f in vcpu_model.features]))
cpu.mode = fields.CPUMode.HOST_MODEL
vcpu_model_1 = drv._cpu_config_to_vcpu_model(cpu, vcpu_model)
self.assertEqual(fields.CPUMode.HOST_MODEL, vcpu_model.mode)
self.assertEqual(vcpu_model, vcpu_model_1)
@mock.patch('nova.virt.disk.api.get_disk_size', return_value=10)
@mock.patch.object(lvm, 'get_volume_size', return_value=10)
@mock.patch.object(host.Host, "get_guest")
@mock.patch.object(dmcrypt, 'delete_volume')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.unfilter_instance')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver._undefine_domain')
@mock.patch.object(objects.Instance, 'save')
def test_cleanup_lvm_encrypted(self, mock_save, mock_undefine_domain,
mock_unfilter, mock_delete_volume,
mock_get_guest, mock_get_lvm_size,
mock_get_size):
drv = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance = objects.Instance(
uuid=uuids.instance, id=1,
ephemeral_key_uuid=uuids.ephemeral_key_uuid)
instance.system_metadata = {}
block_device_info = {'root_device_name': '/dev/vda',
'ephemerals': [],
'block_device_mapping': []}
self.flags(images_type="lvm",
group='libvirt')
dom_xml = """
<domain type="kvm">
<devices>
<disk type="block">
<driver name='qemu' type='raw' cache='none'/>
<source dev="/dev/mapper/fake-dmcrypt"/>
<target dev="vda" bus="virtio" serial="1234"/>
</disk>
</devices>
</domain>
"""
dom = mock.MagicMock()
dom.XMLDesc.return_value = dom_xml
guest = libvirt_guest.Guest(dom)
mock_get_guest.return_value = guest
drv.cleanup(self.context, instance, 'fake_network', destroy_vifs=False,
block_device_info=block_device_info)
mock_delete_volume.assert_called_once_with('/dev/mapper/fake-dmcrypt')
@mock.patch('nova.virt.disk.api.get_disk_size', return_value=10)
@mock.patch.object(lvm, 'get_volume_size', return_value=10)
@mock.patch.object(host.Host, "get_guest")
@mock.patch.object(dmcrypt, 'delete_volume')
def _test_cleanup_lvm(self, mock_delete_volume, mock_get_guest,
mock_lvm_size, mock_get_size, encrypted=False):
drv = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance = objects.Instance(
uuid=uuids.instance, id=1,
ephemeral_key_uuid=uuids.ephemeral_key_uuid)
block_device_info = {'root_device_name': '/dev/vda',
'ephemerals': [],
'block_device_mapping': []}
dev_name = 'fake-dmcrypt' if encrypted else 'fake'
dom_xml = """
<domain type="kvm">
<devices>
<disk type="block">
<driver name='qemu' type='raw' cache='none'/>
<source dev="/dev/mapper/%s"/>
<target dev="vda" bus="virtio" serial="1234"/>
</disk>
</devices>
</domain>
""" % dev_name
dom = mock.MagicMock()
dom.XMLDesc.return_value = dom_xml
guest = libvirt_guest.Guest(dom)
mock_get_guest.return_value = guest
drv._cleanup_lvm(instance, block_device_info)
if encrypted:
mock_delete_volume.assert_called_once_with(
'/dev/mapper/fake-dmcrypt')
else:
self.assertFalse(mock_delete_volume.called)
def test_cleanup_lvm(self):
self._test_cleanup_lvm()
def test_cleanup_encrypted_lvm(self):
self._test_cleanup_lvm(encrypted=True)
def test_vcpu_model_to_config(self):
drv = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
feature = objects.VirtCPUFeature(
policy=fields.CPUFeaturePolicy.REQUIRE, name='sse')
feature_1 = objects.VirtCPUFeature(
policy=fields.CPUFeaturePolicy.FORBID, name='aes')
topo = objects.VirtCPUTopology(sockets=1, cores=2, threads=4)
vcpu_model = objects.VirtCPUModel(mode=fields.CPUMode.HOST_MODEL,
features=[feature, feature_1],
topology=topo)
cpu = drv._vcpu_model_to_cpu_config(vcpu_model)
self.assertEqual(fields.CPUMode.HOST_MODEL, cpu.mode)
self.assertEqual(1, cpu.sockets)
self.assertEqual(4, cpu.threads)
self.assertEqual(2, len(cpu.features))
self.assertEqual(set(['sse', 'aes']),
set([f.name for f in cpu.features]))
self.assertEqual(set([fields.CPUFeaturePolicy.REQUIRE,
fields.CPUFeaturePolicy.FORBID]),
set([f.policy for f in cpu.features]))
def test_trigger_crash_dump(self):
mock_guest = mock.Mock(libvirt_guest.Guest, id=1)
instance = objects.Instance(uuid=uuids.instance, id=1)
with mock.patch.object(self.drvr._host, 'get_guest',
return_value=mock_guest):
self.drvr.trigger_crash_dump(instance)
def test_trigger_crash_dump_not_running(self):
ex = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
'Requested operation is not valid: domain is not running',
error_code=fakelibvirt.VIR_ERR_OPERATION_INVALID)
mock_guest = mock.Mock(libvirt_guest.Guest, id=1)
mock_guest.inject_nmi = mock.Mock(side_effect=ex)
instance = objects.Instance(uuid=uuids.instance, id=1)
with mock.patch.object(self.drvr._host, 'get_guest',
return_value=mock_guest):
self.assertRaises(exception.InstanceNotRunning,
self.drvr.trigger_crash_dump, instance)
def test_trigger_crash_dump_not_supported(self):
ex = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
'',
error_code=fakelibvirt.VIR_ERR_NO_SUPPORT)
mock_guest = mock.Mock(libvirt_guest.Guest, id=1)
mock_guest.inject_nmi = mock.Mock(side_effect=ex)
instance = objects.Instance(uuid=uuids.instance, id=1)
with mock.patch.object(self.drvr._host, 'get_guest',
return_value=mock_guest):
self.assertRaises(exception.TriggerCrashDumpNotSupported,
self.drvr.trigger_crash_dump, instance)
def test_trigger_crash_dump_unexpected_error(self):
ex = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
'UnexpectedError',
error_code=fakelibvirt.VIR_ERR_SYSTEM_ERROR)
mock_guest = mock.Mock(libvirt_guest.Guest, id=1)
mock_guest.inject_nmi = mock.Mock(side_effect=ex)
instance = objects.Instance(uuid=uuids.instance, id=1)
with mock.patch.object(self.drvr._host, 'get_guest',
return_value=mock_guest):
self.assertRaises(fakelibvirt.libvirtError,
self.drvr.trigger_crash_dump, instance)
@mock.patch.object(libvirt_driver.LOG, 'debug')
def test_get_volume_driver_invalid_connector_exception(self, mock_debug):
"""Tests that the driver doesn't fail to initialize if one of the
imported volume drivers raises InvalidConnectorProtocol from os-brick.
"""
# make a copy of the normal list and add a volume driver that raises
# the handled os-brick exception when imported.
libvirt_volume_drivers_copy = copy.copy(
libvirt_driver.libvirt_volume_drivers)
libvirt_volume_drivers_copy.append(
'invalid=nova.tests.unit.virt.libvirt.test_driver.'
'FakeInvalidVolumeDriver'
)
with mock.patch.object(libvirt_driver, 'libvirt_volume_drivers',
libvirt_volume_drivers_copy):
drvr = libvirt_driver.LibvirtDriver(
fake.FakeVirtAPI(), read_only=True
)
# make sure we didn't register the invalid volume driver
self.assertNotIn('invalid', drvr.volume_drivers)
# make sure we logged something
mock_debug.assert_called_with(
('Unable to load volume driver %s. '
'It is not supported on this host.'),
'nova.tests.unit.virt.libvirt.test_driver.FakeInvalidVolumeDriver'
)
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver'
'._get_mediated_devices')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver'
'._get_mdev_capable_devices')
def test_get_gpu_inventories(self, get_mdev_capable_devs,
get_mediated_devices):
get_mdev_capable_devs.return_value = [
{"dev_id": "pci_0000_06_00_0",
"vendor_id": 0x10de,
"types": {'nvidia-11': {'availableInstances': 15,
'name': 'GRID M60-0B',
'deviceAPI': 'vfio-pci'},
}
},
{"dev_id": "pci_0000_07_00_0",
"vendor_id": 0x0000,
"types": {'nvidia-11': {'availableInstances': 7,
'name': 'GRID M60-0B',
'deviceAPI': 'vfio-pci'},
}
},
]
get_mediated_devices.return_value = [{'dev_id': 'mdev_some_uuid1',
'uuid': uuids.mdev1,
'parent': "pci_0000_06_00_0",
'type': 'nvidia-11',
'iommu_group': 1},
{'dev_id': 'mdev_some_uuid2',
'uuid': uuids.mdev2,
'parent': "pci_0000_07_00_0",
'type': 'nvidia-11',
'iommu_group': 1}]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
# If the operator doesn't provide GPU types
self.assertEqual({}, drvr._get_gpu_inventories())
# Now, set a specific GPU type
self.flags(enabled_vgpu_types=['nvidia-11'], group='devices')
expected = {
# the first GPU also has one mdev allocated against it
'pci_0000_06_00_0': {'total': 15 + 1,
'max_unit': 15 + 1,
'min_unit': 1,
'step_size': 1,
'reserved': 0,
'allocation_ratio': 1.0,
},
# the second GPU also has another mdev
'pci_0000_07_00_0': {'total': 7 + 1,
'max_unit': 7 + 1,
'min_unit': 1,
'step_size': 1,
'reserved': 0,
'allocation_ratio': 1.0,
},
}
self.assertEqual(expected, drvr._get_gpu_inventories())
get_mdev_capable_devs.assert_called_once_with(types=['nvidia-11'])
get_mediated_devices.assert_called_once_with(types=['nvidia-11'])
@mock.patch.object(host.Host, 'device_lookup_by_name')
@mock.patch.object(host.Host, 'list_mdev_capable_devices')
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_MDEV_SUPPORT))
def test_get_mdev_capable_devices(self, _get_libvirt_version,
list_mdev_capable_devs,
device_lookup_by_name):
list_mdev_capable_devs.return_value = ['pci_0000_06_00_0']
def fake_nodeDeviceLookupByName(name):
return FakeNodeDevice(_fake_NodeDevXml[name])
device_lookup_by_name.side_effect = fake_nodeDeviceLookupByName
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
expected = [{"dev_id": "pci_0000_06_00_0",
"vendor_id": 0x10de,
"types": {'nvidia-11': {'availableInstances': 16,
'name': 'GRID M60-0B',
'deviceAPI': 'vfio-pci'},
}
}]
self.assertEqual(expected, drvr._get_mdev_capable_devices())
@mock.patch.object(host.Host, 'device_lookup_by_name')
@mock.patch.object(host.Host, 'list_mdev_capable_devices')
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_MDEV_SUPPORT))
def test_get_mdev_capable_devices_filtering(self, _get_libvirt_version,
list_mdev_capable_devs,
device_lookup_by_name):
list_mdev_capable_devs.return_value = ['pci_0000_06_00_0']
def fake_nodeDeviceLookupByName(name):
return FakeNodeDevice(_fake_NodeDevXml[name])
device_lookup_by_name.side_effect = fake_nodeDeviceLookupByName
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
# Since we filter by a type not supported by the physical device,
# we don't get results.
self.assertEqual([],
drvr._get_mdev_capable_devices(types=['nvidia-12']))
@mock.patch.object(host.Host, 'device_lookup_by_name')
@mock.patch.object(host.Host, 'list_mediated_devices')
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_MDEV_SUPPORT))
def test_get_mediated_devices(self, _get_libvirt_version,
list_mediated_devices,
device_lookup_by_name):
list_mediated_devices.return_value = [
'mdev_4b20d080_1b54_4048_85b3_a6a62d165c01']
def fake_nodeDeviceLookupByName(name):
return FakeNodeDevice(_fake_NodeDevXml[name])
device_lookup_by_name.side_effect = fake_nodeDeviceLookupByName
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
expected = [{"dev_id": "mdev_4b20d080_1b54_4048_85b3_a6a62d165c01",
"uuid": "4b20d080-1b54-4048-85b3-a6a62d165c01",
"parent": "pci_0000_00_02_0",
"type": "nvidia-11",
"iommu_group": 12
}]
self.assertEqual(expected, drvr._get_mediated_devices())
@mock.patch.object(host.Host, 'device_lookup_by_name')
@mock.patch.object(host.Host, 'list_mediated_devices')
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_MDEV_SUPPORT))
def test_get_mediated_devices_filtering(self, _get_libvirt_version,
list_mediated_devices,
device_lookup_by_name):
list_mediated_devices.return_value = [
'mdev_4b20d080_1b54_4048_85b3_a6a62d165c01']
def fake_nodeDeviceLookupByName(name):
return FakeNodeDevice(_fake_NodeDevXml[name])
device_lookup_by_name.side_effect = fake_nodeDeviceLookupByName
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
# Since we filter by a type not supported by the physical device,
# we don't get results.
self.assertEqual([], drvr._get_mediated_devices(types=['nvidia-12']))
@mock.patch.object(host.Host, 'list_guests')
def test_get_all_assigned_mediated_devices(self, list_guests):
dom_with_vgpu = """
<domain type="kvm">
<devices>
<hostdev mode='subsystem' type='mdev' model='vfio-pci'>
<source>
<address uuid='%s'/>
</source>
</hostdev>
</devices>
</domain>
""" % uuids.mdev
guest1 = libvirt_guest.Guest(FakeVirtDomain())
guest2 = libvirt_guest.Guest(FakeVirtDomain(fake_xml=dom_with_vgpu))
list_guests.return_value = [guest1, guest2]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertEqual({uuids.mdev: guest2.uuid},
drvr._get_all_assigned_mediated_devices())
@mock.patch.object(host.Host, 'get_guest')
def test_get_all_assigned_mediated_devices_for_an_instance(self,
get_guest):
dom_with_vgpu = """
<domain type="kvm">
<devices>
<hostdev mode='subsystem' type='mdev' model='vfio-pci'>
<source>
<address uuid='%s'/>
</source>
</hostdev>
</devices>
</domain>
""" % uuids.mdev
guest = libvirt_guest.Guest(FakeVirtDomain(fake_xml=dom_with_vgpu))
get_guest.return_value = guest
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
fake_inst = objects.Instance()
self.assertEqual({uuids.mdev: guest.uuid},
drvr._get_all_assigned_mediated_devices(fake_inst))
get_guest.assert_called_once_with(fake_inst)
@mock.patch.object(host.Host, 'get_guest')
def test_get_all_assigned_mediated_devices_for_a_non_existing_instance(
self, get_guest):
get_guest.side_effect = exception.InstanceNotFound(instance_id='fake')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
fake_inst = objects.Instance()
self.assertEqual({},
drvr._get_all_assigned_mediated_devices(fake_inst))
def test_allocate_mdevs_with_no_vgpu_allocations(self):
allocations = {
'rp1': {
'resources': {
# Just any resource class but VGPU
orc.VCPU: 1,
}
}
}
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertIsNone(drvr._allocate_mdevs(allocations=allocations))
def _get_fake_provider_tree_with_vgpu(self):
"""Returns a fake ProviderTree with VGPU inventory on two children RPs
with one with a correct name and the other one wrong.
The child provider is named rp1 and its UUID is uuids.rp1.
"""
cn_rp = dict(
uuid=uuids.cn,
name='cn',
)
vgpu_rp_inv = {
orc.VGPU: {
'total': 1,
'min_unit': 1,
'max_unit': 1,
'step_size': 1,
}
}
pt = provider_tree.ProviderTree()
pt.new_root(cn_rp['name'], cn_rp['uuid'], generation=0)
# Create a first child with a correct naming attribute
pt.new_child(cn_rp['name'] + '_' + 'pci_0000_06_00_0', cn_rp['uuid'],
uuid=uuids.rp1, generation=0)
pt.update_inventory(uuids.rp1, vgpu_rp_inv)
# Create a second child with a bad naming convention
pt.new_child('oops_I_did_it_again', cn_rp['uuid'],
uuid=uuids.rp2, generation=0)
pt.update_inventory(uuids.rp2, vgpu_rp_inv)
return pt
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_get_existing_mdevs_not_assigned')
def test_allocate_mdevs_with_available_mdevs(self, get_unassigned_mdevs):
self.flags(enabled_vgpu_types=['nvidia-11'], group='devices')
allocations = {
uuids.rp1: {
'resources': {
orc.VGPU: 1,
}
}
}
get_unassigned_mdevs.return_value = set([uuids.mdev1])
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
# Mock the fact update_provider_tree() should have run
drvr.provider_tree = self._get_fake_provider_tree_with_vgpu()
self.assertEqual([uuids.mdev1],
drvr._allocate_mdevs(allocations=allocations))
get_unassigned_mdevs.assert_called_once_with(['nvidia-11'],
'pci_0000_06_00_0')
@mock.patch.object(nova.privsep.libvirt, 'create_mdev')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_get_mdev_capable_devices')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_get_existing_mdevs_not_assigned')
def test_allocate_mdevs_with_no_mdevs_but_capacity(self,
unallocated_mdevs,
get_mdev_capable_devs,
privsep_create_mdev):
self.flags(enabled_vgpu_types=['nvidia-11'], group='devices')
allocations = {
uuids.rp1: {
'resources': {
orc.VGPU: 1,
}
}
}
unallocated_mdevs.return_value = set()
get_mdev_capable_devs.return_value = [
{"dev_id": "pci_0000_06_00_0",
"vendor_id": 0x10de,
"types": {'nvidia-11': {'availableInstances': 16,
'name': 'GRID M60-0B',
'deviceAPI': 'vfio-pci'},
}
}]
privsep_create_mdev.return_value = uuids.mdev1
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
# Mock the fact update_provider_tree() should have run
drvr.provider_tree = self._get_fake_provider_tree_with_vgpu()
self.assertEqual([uuids.mdev1],
drvr._allocate_mdevs(allocations=allocations))
privsep_create_mdev.assert_called_once_with("0000:06:00.0",
'nvidia-11',
uuid=None)
@mock.patch.object(nova.privsep.libvirt, 'create_mdev')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_get_mdev_capable_devices')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_get_existing_mdevs_not_assigned')
def test_allocate_mdevs_with_no_gpu_capacity(self,
unallocated_mdevs,
get_mdev_capable_devs,
privsep_create_mdev):
self.flags(enabled_vgpu_types=['nvidia-11'], group='devices')
allocations = {
uuids.rp1: {
'resources': {
orc.VGPU: 1,
}
}
}
unallocated_mdevs.return_value = set()
# Mock the fact all possible mediated devices are created and all of
# them being assigned
get_mdev_capable_devs.return_value = [
{"dev_id": "pci_0000_06_00_0",
"vendor_id": 0x10de,
"types": {'nvidia-11': {'availableInstances': 0,
'name': 'GRID M60-0B',
'deviceAPI': 'vfio-pci'},
}
}]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
# Mock the fact update_provider_tree() should have run
drvr.provider_tree = self._get_fake_provider_tree_with_vgpu()
self.assertRaises(exception.ComputeResourcesUnavailable,
drvr._allocate_mdevs, allocations=allocations)
def test_allocate_mdevs_with_no_idea_of_the_provider(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
# Mock the fact update_provider_tree() should have run
drvr.provider_tree = self._get_fake_provider_tree_with_vgpu()
# Test that the allocated RP doesn't exist in the tree
allocations = {
uuids.wrong_rp: {
'resources': {
orc.VGPU: 1,
}
}
}
self.assertRaises(exception.ComputeResourcesUnavailable,
drvr._allocate_mdevs, allocations=allocations)
# Test that we were unable to guess the RP name
allocations = {
uuids.rp2: {
'resources': {
orc.VGPU: 1,
}
}
}
# Remember, rp2 has a wrong naming convention
self.assertRaises(exception.ComputeResourcesUnavailable,
drvr._allocate_mdevs, allocations=allocations)
@mock.patch.object(libvirt_driver.LibvirtDriver, '_get_mediated_devices')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_get_all_assigned_mediated_devices')
def test_get_existing_mdevs_not_assigned(self, get_all_assigned_mdevs,
get_mediated_devices):
# mdev2 is assigned to instance1
get_all_assigned_mdevs.return_value = {uuids.mdev2: uuids.inst1}
# there is a total of 2 mdevs, mdev1 and mdev2
get_mediated_devices.return_value = [{'dev_id': 'mdev_some_uuid1',
'uuid': uuids.mdev1,
'parent': "pci_some",
'type': 'nvidia-11',
'iommu_group': 1},
{'dev_id': 'mdev_some_uuid2',
'uuid': uuids.mdev2,
'parent': "pci_some",
'type': 'nvidia-11',
'iommu_group': 1}]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
# Since mdev2 is assigned to inst1, only mdev1 is available
self.assertEqual(set([uuids.mdev1]),
drvr._get_existing_mdevs_not_assigned())
@mock.patch.object(nova.privsep.libvirt, 'create_mdev')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_get_mdev_capable_devices')
@mock.patch.object(os.path, 'exists')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_get_all_assigned_mediated_devices')
@mock.patch.object(fakelibvirt.Connection, 'getLibVersion',
return_value=versionutils.convert_version_to_int(
libvirt_driver.MIN_LIBVIRT_MDEV_SUPPORT))
def test_recreate_mediated_device_on_init_host(
self, _get_libvirt_version,
get_all_assigned_mdevs, exists, get_mdev_capable_devs,
privsep_create_mdev):
self.flags(enabled_vgpu_types=['nvidia-11'], group='devices')
get_all_assigned_mdevs.return_value = {uuids.mdev1: uuids.inst1,
uuids.mdev2: uuids.inst2}
# Fake the fact that mdev1 is existing but mdev2 not
def _exists(path):
# Just verify what we ask
self.assertIn('/sys/bus/mdev/devices/', path)
return True if uuids.mdev1 in path else False
exists.side_effect = _exists
get_mdev_capable_devs.return_value = [
{"dev_id": "pci_0000_06_00_0",
"vendor_id": 0x10de,
"types": {'nvidia-11': {'availableInstances': 16,
'name': 'GRID M60-0B',
'deviceAPI': 'vfio-pci'},
}
}]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.init_host(host='foo')
privsep_create_mdev.assert_called_once_with(
"0000:06:00.0", 'nvidia-11', uuid=uuids.mdev2)
@mock.patch.object(libvirt_guest.Guest, 'detach_device')
def _test_detach_mediated_devices(self, side_effect, detach_device):
dom_with_vgpu = (
"""<domain> <devices>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source file='xxx'/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x04' function='0x0'/>
</disk>
<hostdev mode='subsystem' type='mdev' managed='no'
model='vfio-pci'>
<source>
<address uuid='81db53c6-6659-42a0-a34c-1507fdc72983'/>
</source>
<alias name='hostdev0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05'
function='0x0'/>
</hostdev>
</devices></domain>""")
detach_device.side_effect = side_effect
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
guest = libvirt_guest.Guest(FakeVirtDomain(fake_xml=dom_with_vgpu))
drvr._detach_mediated_devices(guest)
return detach_device
def test_detach_mediated_devices(self):
def fake_detach_device(cfg_obj, **kwargs):
self.assertIsInstance(cfg_obj,
vconfig.LibvirtConfigGuestHostdevMDEV)
detach_mock = self._test_detach_mediated_devices(fake_detach_device)
detach_mock.assert_called_once_with(mock.ANY, live=True)
def test_detach_mediated_devices_raises_exc_unsupported(self):
exc = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError, 'virDomainDetachDeviceFlags() failed',
error_code=fakelibvirt.VIR_ERR_CONFIG_UNSUPPORTED)
self.assertRaises(exception.InstanceFaultRollback,
self._test_detach_mediated_devices, exc)
def test_detach_mediated_devices_raises_exc(self):
exc = test.TestingException()
self.assertRaises(test.TestingException,
self._test_detach_mediated_devices, exc)
def test_cpu_traits_with_passthrough_mode(self):
"""Test getting CPU traits when cpu_mmode is 'host-passthrough', traits
are calculated from fakelibvirt's baseline CPU features.
"""
self.flags(cpu_mode='host-passthrough', group='libvirt')
self.assertTraitsEqual(['HW_CPU_X86_AESNI', 'HW_CPU_X86_VMX'],
self.drvr._get_cpu_traits())
@mock.patch('nova.virt.libvirt.host.libvirt.Connection.baselineCPU')
def test_cpu_traits_with_mode_none(self, mock_baseline):
"""Test getting CPU traits when cpu_mode is 'none', traits are
calculated from _fake_qemu64_cpu_features.
"""
self.flags(cpu_mode='none', group='libvirt')
mock_baseline.return_value = _fake_qemu64_cpu_feature
self.assertTraitsEqual(['HW_CPU_X86_SSE', 'HW_CPU_X86_SVM',
'HW_CPU_X86_MMX', 'HW_CPU_X86_SSE2'],
self.drvr._get_cpu_traits())
mock_baseline.assert_called_with([u'''<cpu>
<arch>x86_64</arch>
<model>qemu64</model>
<vendor>Intel</vendor>
<topology sockets="1" cores="2" threads="1"/>
</cpu>
'''], 1)
@mock.patch('nova.virt.libvirt.host.libvirt.Connection.baselineCPU')
def test_cpu_traits_with_mode_custom(self, mock_baseline):
"""Test getting CPU traits when cpu_mode is 'custom' and cpu_model is
'Broadwell-noTSX', traits are calculated from
_fake_broadwell_cpu_features.
"""
self.flags(cpu_mode='custom',
cpu_model='Broadwell-noTSX',
group='libvirt')
mock_baseline.return_value = _fake_broadwell_cpu_feature
self.assertTraitsEqual(
[
'HW_CPU_X86_BMI2',
'HW_CPU_X86_AVX2',
'HW_CPU_X86_BMI',
'HW_CPU_X86_AVX',
'HW_CPU_X86_AESNI',
'HW_CPU_X86_SSE42',
'HW_CPU_X86_SSE41',
'HW_CPU_X86_FMA3',
'HW_CPU_X86_SSSE3',
'HW_CPU_X86_CLMUL',
'HW_CPU_X86_SSE2',
'HW_CPU_X86_SSE',
'HW_CPU_X86_MMX'
], self.drvr._get_cpu_traits()
)
mock_baseline.assert_called_with([u'''<cpu>
<arch>x86_64</arch>
<model>Broadwell-noTSX</model>
<vendor>Intel</vendor>
<topology sockets="1" cores="2" threads="1"/>
</cpu>
'''], 1)
@mock.patch('nova.virt.libvirt.host.libvirt.Connection.baselineCPU')
def test_cpu_traits_with_no_baseline_support(self, mock_baseline):
"""Test getting CPU traits when baseline call is not supported."""
self.flags(cpu_mode='none', group='libvirt')
not_supported_exc = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
'this function is not supported by the connection driver',
error_code=fakelibvirt.VIR_ERR_NO_SUPPORT)
mock_baseline.side_effect = not_supported_exc
self.assertTraitsEqual([], self.drvr._get_cpu_traits())
@mock.patch('nova.virt.libvirt.host.libvirt.Connection.getCapabilities')
@mock.patch('nova.virt.libvirt.host.libvirt.Connection.baselineCPU')
def test_cpu_traits_on_s390x(self, mock_baseline, mock_cap):
"""Test getting CPU traits on s390x, baseline call is not supported on
the platform.
"""
self.flags(cpu_mode='none', group='libvirt')
mock_cap.return_value = """
<capabilities>
<host>
<uuid>cef19ce0-0ca2-11df-855d-b19fbce37686</uuid>
<cpu>
<arch>s390x</arch>
<topology sockets='1' cores='6' threads='1'/>
<pages unit='KiB' size='4' />
<pages unit='KiB' size='1024' />
</cpu>
</host>
</capabilities>
"""
not_supported_exc = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
'this function is not supported by the connection driver: cannot'
' compute baseline CPU',
error_code=fakelibvirt.VIR_ERR_NO_SUPPORT)
missing_model_exc = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
'XML error: Missing CPU model name',
error_code=fakelibvirt.VIR_ERR_XML_ERROR)
# model the libvirt behavior on s390x
def mocked_baseline(cpu_xml, *args):
xml = cpu_xml[0]
if "<model>" in xml:
raise not_supported_exc
else:
raise missing_model_exc
mock_baseline.side_effect = mocked_baseline
self.assertTraitsEqual([], self.drvr._get_cpu_traits())
def test_cpu_traits_with_invalid_virt_type(self):
"""Test getting CPU traits when using a virt_type that doesn't support
the feature, only kvm and qemu supports reporting CPU traits.
"""
self.flags(cpu_mode='custom',
cpu_model='IvyBridge',
virt_type='lxc',
group='libvirt'
)
self.assertRaises(exception.Invalid, self.drvr._get_cpu_traits)
@mock.patch('nova.virt.libvirt.host.libvirt.Connection.getCapabilities')
@mock.patch('nova.virt.libvirt.utils.cpu_features_to_traits')
def test_cpu_traits_with_mode_passthrough_and_extra_flags(
self, mock_to_traits, mock_cap):
"""Test if extra flags are accounted when cpu_mode is set to
host-passthrough.
"""
self.flags(cpu_mode='host-passthrough',
cpu_model_extra_flags='PCID',
group='libvirt')
mock_cap.return_value = """
<capabilities>
<host>
<uuid>cef19ce0-0ca2-11df-855d-b19fbce37686</uuid>
<cpu>
<arch>IvyBridge</arch>
<topology sockets='1' cores='2' threads='2'/>
<feature policy='require' name='erms'/>
<pages unit='KiB' size='4' />
<pages unit='KiB' size='1024' />
</cpu>
</host>
</capabilities>
"""
self.drvr._get_cpu_traits()
self.assertItemsEqual(['pcid', 'erms'], mock_to_traits.call_args[0][0])
@mock.patch('nova.virt.libvirt.host.libvirt.Connection.baselineCPU')
@mock.patch('nova.virt.libvirt.utils.cpu_features_to_traits')
def test_cpu_traits_with_mode_custom_and_extra_flags(self, mock_to_traits,
mock_baseline):
"""Test if extra flags are accounted when cpu_mode is set to custom.
"""
self.flags(cpu_mode='custom',
cpu_model='IvyBridge',
cpu_model_extra_flags='PCID',
group='libvirt')
mock_baseline.return_value = """
<cpu mode='custom' match='exact'>
<model fallback='forbid'>IvyBridge</model>
<vendor>Intel</vendor>
<feature policy='require' name='erms'/>
<feature policy='require' name='pcid'/>
</cpu>
"""
self.drvr._get_cpu_traits()
mock_baseline.assert_called_with([u'''<cpu>
<arch>x86_64</arch>
<model>IvyBridge</model>
<vendor>Intel</vendor>
<topology sockets="1" cores="2" threads="1"/>
<feature name="pcid"/>
</cpu>
'''], 1)
self.assertItemsEqual(['pcid', 'erms'], mock_to_traits.call_args[0][0])
@mock.patch('nova.virt.libvirt.host.libvirt.Connection.baselineCPU')
@mock.patch('nova.virt.libvirt.utils.cpu_features_to_traits')
def test_cpu_traits_with_mode_not_set_and_extra_flags(self, mock_to_traits,
mock_baseline):
"""Test if extra flags are accounted when cpu_mode is not set."""
self.flags(cpu_mode=None,
cpu_model_extra_flags='PCID',
virt_type='kvm',
group='libvirt'
)
mock_baseline.return_value = """
<cpu mode='custom' match='exact'>
<model fallback='forbid'>IvyBridge</model>
<vendor>Intel</vendor>
<feature policy='require' name='erms'/>
</cpu>
"""
self.drvr._get_cpu_traits()
self.assertItemsEqual(['pcid', 'erms'], mock_to_traits.call_args[0][0])
def test_cpu_traits_with_mode_none_and_invalid_virt_type(self):
"""Test case that cpu mode is none and virt_type is neither kvm nor
qemu.
"""
self.flags(cpu_mode='none',
virt_type='lxc',
group='libvirt')
self.assertIsNone(self.drvr._get_cpu_traits())
@mock.patch('nova.virt.libvirt.host.libvirt.Connection.getCapabilities')
@mock.patch('nova.virt.libvirt.host.libvirt.Connection.baselineCPU')
def test_cpu_traits_with_mode_none_on_power(self, mock_baseline, mock_cap):
"""Test case that cpu mode is none on Power machines."""
self.flags(cpu_mode='none', virt_type='kvm', group='libvirt')
mock_cap.return_value = '''
<capabilities>
<host>
<uuid>1f71d34a-7c89-45cf-95ce-3df20fc6b936</uuid>
<cpu>
<model>POWER8</model>
<vendor>IBM</vendor>
<arch>ppc64le</arch>
<topology sockets='1' cores='5' threads='1'/>
<pages unit='KiB' size='64'/>
</cpu>
</host>
</capabilities>
'''
mock_baseline.return_value = '''
<cpu>
<model>POWER8</model>
<vendor>IBM</vendor>
</cpu>
'''
self.drvr._get_cpu_traits()
mock_baseline.assert_called_with([u'''<cpu>
<arch>ppc64le</arch>
<model>POWER8</model>
<vendor>IBM</vendor>
<topology sockets="1" cores="5" threads="1"/>
</cpu>
'''], 1)
class LibvirtVolumeUsageTestCase(test.NoDBTestCase):
"""Test for LibvirtDriver.get_all_volume_usage."""
def setUp(self):
super(LibvirtVolumeUsageTestCase, self).setUp()
self.useFixture(fakelibvirt.FakeLibvirtFixture())
self.drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.c = context.get_admin_context()
self.ins_ref = objects.Instance(
id=1729,
uuid='875a8070-d0b9-4949-8b31-104d125c9a64'
)
# verify bootable volume device path also
self.bdms = [{'volume_id': 1,
'device_name': '/dev/vde'},
{'volume_id': 2,
'device_name': 'vda'}]
def test_get_all_volume_usage(self):
with mock.patch.object(
self.drvr, 'block_stats',
return_value=(169, 688640, 0, 0, -1)) as mock_block_stats:
vol_usage = self.drvr.get_all_volume_usage(
self.c, [dict(instance=self.ins_ref, instance_bdms=self.bdms)])
expected_usage = [{'volume': 1,
'instance': self.ins_ref,
'rd_bytes': 688640, 'wr_req': 0,
'rd_req': 169, 'wr_bytes': 0},
{'volume': 2,
'instance': self.ins_ref,
'rd_bytes': 688640, 'wr_req': 0,
'rd_req': 169, 'wr_bytes': 0}]
self.assertEqual(vol_usage, expected_usage)
self.assertEqual(2, mock_block_stats.call_count)
mock_block_stats.assert_has_calls([
mock.call(self.ins_ref, 'vde'), mock.call(self.ins_ref, 'vda')])
@mock.patch.object(host.Host, '_get_domain',
side_effect=exception.InstanceNotFound(
instance_id='fakedom'))
def test_get_all_volume_usage_device_not_found(self, mock_get_domain):
vol_usage = self.drvr.get_all_volume_usage(self.c,
[dict(instance=self.ins_ref, instance_bdms=self.bdms)])
self.assertEqual(vol_usage, [])
self.assertEqual(2, mock_get_domain.call_count)
mock_get_domain.assert_has_calls([mock.call(self.ins_ref)] * 2)
class LibvirtNonblockingTestCase(test.NoDBTestCase):
"""Test libvirtd calls are nonblocking."""
def setUp(self):
super(LibvirtNonblockingTestCase, self).setUp()
self.useFixture(fakelibvirt.FakeLibvirtFixture())
self.flags(connection_uri="test:///default",
group='libvirt')
def test_connection_to_primitive(self):
# Test bug 962840.
import nova.virt.libvirt.driver as libvirt_driver
drvr = libvirt_driver.LibvirtDriver('')
drvr.set_host_enabled = mock.Mock()
jsonutils.to_primitive(drvr._conn, convert_instances=True)
@mock.patch.object(eventlet.tpool, 'execute')
@mock.patch.object(objects.Service, 'get_by_compute_host')
def test_tpool_execute_calls_libvirt(self, mock_svc, mock_execute):
conn = fakelibvirt.virConnect()
conn.is_expected = True
side_effect = [conn, None]
expected_calls = [
mock.call(fakelibvirt.openAuth, 'test:///default',
mock.ANY, mock.ANY),
mock.call(conn.domainEventRegisterAny, None,
fakelibvirt.VIR_DOMAIN_EVENT_ID_LIFECYCLE,
mock.ANY, mock.ANY)]
if hasattr(fakelibvirt.virConnect, 'registerCloseCallback'):
side_effect.append(None)
expected_calls.append(mock.call(
conn.registerCloseCallback, mock.ANY, mock.ANY))
mock_execute.side_effect = side_effect
driver = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
c = driver._get_connection()
self.assertTrue(c.is_expected)
self.assertEqual(len(expected_calls), mock_execute.call_count)
mock_execute.assert_has_calls(expected_calls)
class LibvirtVolumeSnapshotTestCase(test.NoDBTestCase):
"""Tests for libvirtDriver.volume_snapshot_create/delete."""
def setUp(self):
super(LibvirtVolumeSnapshotTestCase, self).setUp()
self.useFixture(fakelibvirt.FakeLibvirtFixture())
self.drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.c = context.get_admin_context()
self.flags(instance_name_template='instance-%s')
# creating instance
self.inst = {}
self.inst['uuid'] = uuids.fake
self.inst['id'] = '1'
# system_metadata is needed for objects.Instance.image_meta conversion
self.inst['system_metadata'] = {}
# create domain info
self.dom_xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='disk1_file'/>
<target dev='vda' bus='virtio'/>
<serial>0e38683e-f0af-418f-a3f1-6b67ea0f919d</serial>
</disk>
<disk type='block'>
<source dev='/path/to/dev/1'/>
<target dev='vdb' bus='virtio' serial='1234'/>
</disk>
</devices>
</domain>"""
# alternate domain info with network-backed snapshot chain
self.dom_netdisk_xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='disk1_file'/>
<target dev='vda' bus='virtio'/>
<serial>0e38683e-f0af-418f-a3f1-6b67eaffffff</serial>
</disk>
<disk type='network' device='disk'>
<driver name='qemu' type='qcow2'/>
<source protocol='netfs' name='vol1/root.img'>
<host name='server1' port='24007'/>
</source>
<backingStore type='network' index='1'>
<driver name='qemu' type='qcow2'/>
<source protocol='netfs' name='vol1/snap.img'>
<host name='server1' port='24007'/>
</source>
<backingStore type='network' index='2'>
<driver name='qemu' type='qcow2'/>
<source protocol='netfs' name='vol1/snap-b.img'>
<host name='server1' port='24007'/>
</source>
<backingStore/>
</backingStore>
</backingStore>
<target dev='vdb' bus='virtio'/>
<serial>0e38683e-f0af-418f-a3f1-6b67ea0f919d</serial>
</disk>
</devices>
</domain>
"""
# XML with netdisk attached, and 1 snapshot taken
self.dom_netdisk_xml_2 = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='disk1_file'/>
<target dev='vda' bus='virtio'/>
<serial>0e38683e-f0af-418f-a3f1-6b67eaffffff</serial>
</disk>
<disk type='network' device='disk'>
<driver name='qemu' type='qcow2'/>
<source protocol='netfs' name='vol1/snap.img'>
<host name='server1' port='24007'/>
</source>
<backingStore type='network' index='1'>
<driver name='qemu' type='qcow2'/>
<source protocol='netfs' name='vol1/root.img'>
<host name='server1' port='24007'/>
</source>
<backingStore/>
</backingStore>
<target dev='vdb' bus='virtio'/>
<serial>0e38683e-f0af-418f-a3f1-6b67ea0f919d</serial>
</disk>
</devices>
</domain>
"""
self.create_info = {'type': 'qcow2',
'snapshot_id': '1234-5678',
'new_file': 'new-file'}
self.volume_uuid = '0e38683e-f0af-418f-a3f1-6b67ea0f919d'
self.snapshot_id = '9c3ca9f4-9f4e-4dba-bedd-5c5e4b52b162'
self.delete_info_1 = {'type': 'qcow2',
'file_to_merge': 'snap.img',
'merge_target_file': None}
self.delete_info_2 = {'type': 'qcow2',
'file_to_merge': 'snap.img',
'merge_target_file': 'other-snap.img'}
self.delete_info_3 = {'type': 'qcow2',
'file_to_merge': None,
'merge_target_file': None}
self.delete_info_netdisk = {'type': 'qcow2',
'file_to_merge': 'snap.img',
'merge_target_file': 'root.img'}
self.delete_info_invalid_type = {'type': 'made_up_type',
'file_to_merge': 'some_file',
'merge_target_file':
'some_other_file'}
@mock.patch('nova.virt.block_device.DriverVolumeBlockDevice.'
'refresh_connection_info')
@mock.patch('nova.objects.block_device.BlockDeviceMapping.'
'get_by_volume_and_instance')
def test_volume_refresh_connection_info(self,
mock_get_by_volume_and_instance,
mock_refresh_connection_info):
instance = objects.Instance(**self.inst)
fake_bdm = fake_block_device.FakeDbBlockDeviceDict({
'id': 123,
'instance_uuid': uuids.instance,
'device_name': '/dev/sdb',
'source_type': 'volume',
'destination_type': 'volume',
'volume_id': 'fake-volume-id-1',
'connection_info': '{"fake": "connection_info"}'})
fake_bdm = objects.BlockDeviceMapping(self.c, **fake_bdm)
mock_get_by_volume_and_instance.return_value = fake_bdm
self.drvr._volume_refresh_connection_info(self.c, instance,
self.volume_uuid)
mock_get_by_volume_and_instance.assert_called_once_with(
self.c, self.volume_uuid, instance.uuid)
mock_refresh_connection_info.assert_called_once_with(self.c, instance,
self.drvr._volume_api, self.drvr)
@mock.patch.object(FakeVirtDomain, 'snapshotCreateXML')
@mock.patch.object(FakeVirtDomain, 'XMLDesc')
@mock.patch.object(host.Host, '_get_domain')
def _test_volume_snapshot_create(self, mock_get, mock_xml, mock_snapshot,
quiesce=True, can_quiesce=True,
quiesce_required=False):
"""Test snapshot creation with file-based disk."""
self.flags(instance_name_template='instance-%s')
if quiesce_required:
self.inst['system_metadata']['image_os_require_quiesce'] = True
instance = objects.Instance(**self.inst)
new_file = 'new-file'
domain = FakeVirtDomain(fake_xml=self.dom_xml)
mock_xml.return_value = self.dom_xml
snap_xml_src = (
'<domainsnapshot>\n'
' <disks>\n'
' <disk name="disk1_file" snapshot="external" type="file">\n'
' <source file="new-file"/>\n'
' </disk>\n'
' <disk name="vdb" snapshot="no"/>\n'
' </disks>\n'
'</domainsnapshot>\n')
# Older versions of libvirt may be missing these.
fakelibvirt.VIR_DOMAIN_SNAPSHOT_CREATE_REUSE_EXT = 32
fakelibvirt.VIR_DOMAIN_SNAPSHOT_CREATE_QUIESCE = 64
snap_flags = (fakelibvirt.VIR_DOMAIN_SNAPSHOT_CREATE_DISK_ONLY |
fakelibvirt.VIR_DOMAIN_SNAPSHOT_CREATE_NO_METADATA |
fakelibvirt.VIR_DOMAIN_SNAPSHOT_CREATE_REUSE_EXT)
snap_flags_q = (snap_flags |
fakelibvirt.VIR_DOMAIN_SNAPSHOT_CREATE_QUIESCE)
can_quiesce_mock = mock.Mock()
if can_quiesce:
can_quiesce_mock.return_value = None
if not quiesce:
# we can quiesce but snapshot with quiesce fails
mock_snapshot.side_effect = [fakelibvirt.libvirtError(
'quiescing failed, no qemu-ga'), None]
else:
can_quiesce_mock.side_effect = exception.QemuGuestAgentNotEnabled
self.drvr._can_quiesce = can_quiesce_mock
guest = libvirt_guest.Guest(domain)
if quiesce_required and (not quiesce or not can_quiesce):
# If we can't quiesce but it's required by the image then we should
# fail.
if not quiesce:
# snapshot + quiesce failed which is a libvirtError
expected_error = fakelibvirt.libvirtError
else:
# quiesce is required but we can't do it
expected_error = exception.QemuGuestAgentNotEnabled
self.assertRaises(expected_error,
self.drvr._volume_snapshot_create,
self.c, instance, guest, self.volume_uuid,
new_file)
else:
self.drvr._volume_snapshot_create(self.c, instance, guest,
self.volume_uuid, new_file)
# instance.image_meta generates a new objects.ImageMeta object each
# time it's called so just use a mock.ANY for the image_meta arg.
can_quiesce_mock.assert_called_once_with(instance, mock.ANY)
mock_xml.assert_called_once_with(flags=0)
mock_get.assert_not_called()
if can_quiesce:
if quiesce or quiesce_required:
mock_snapshot.assert_called_once_with(snap_xml_src,
flags=snap_flags_q)
else:
# quiesce is not required so try snapshot again without it
self.assertEqual(2, mock_snapshot.call_count)
mock_snapshot.assert_has_calls([
mock.call(snap_xml_src, flags=snap_flags_q),
mock.call(snap_xml_src, flags=snap_flags)])
elif not quiesce_required:
# quiesce is not required so try snapshot again without it
mock_snapshot.assert_called_once_with(snap_xml_src,
flags=snap_flags)
@mock.patch.object(FakeVirtDomain, 'snapshotCreateXML')
@mock.patch.object(FakeVirtDomain, 'XMLDesc')
@mock.patch.object(host.Host, '_get_domain')
def test_volume_snapshot_create_libgfapi(self, mock_get, mock_xml,
mock_snapshot):
"""Test snapshot creation with libgfapi network disk."""
self.flags(instance_name_template = 'instance-%s')
self.dom_xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='disk1_file'/>
<target dev='vda' bus='virtio'/>
<serial>0e38683e-f0af-418f-a3f1-6b67ea0f919d</serial>
</disk>
<disk type='block'>
<source protocol='netfs' name='netfs1/volume-1234'>
<host name='127.3.4.5' port='24007'/>
</source>
<target dev='vdb' bus='virtio' serial='1234'/>
</disk>
</devices>
</domain>"""
instance = objects.Instance(**self.inst)
new_file = 'new-file'
domain = FakeVirtDomain(fake_xml=self.dom_xml)
mock_xml.return_value = self.dom_xml
snap_xml_src = (
'<domainsnapshot>\n'
' <disks>\n'
' <disk name="disk1_file" snapshot="external" type="file">\n'
' <source file="new-file"/>\n'
' </disk>\n'
' <disk name="vdb" snapshot="no"/>\n'
' </disks>\n'
'</domainsnapshot>\n')
# Older versions of libvirt may be missing these.
fakelibvirt.VIR_DOMAIN_SNAPSHOT_CREATE_REUSE_EXT = 32
fakelibvirt.VIR_DOMAIN_SNAPSHOT_CREATE_QUIESCE = 64
snap_flags = (fakelibvirt.VIR_DOMAIN_SNAPSHOT_CREATE_DISK_ONLY |
fakelibvirt.VIR_DOMAIN_SNAPSHOT_CREATE_NO_METADATA |
fakelibvirt.VIR_DOMAIN_SNAPSHOT_CREATE_REUSE_EXT)
snap_flags_q = (snap_flags |
fakelibvirt.VIR_DOMAIN_SNAPSHOT_CREATE_QUIESCE)
guest = libvirt_guest.Guest(domain)
with mock.patch.object(self.drvr, '_can_quiesce', return_value=None):
self.drvr._volume_snapshot_create(self.c, instance, guest,
self.volume_uuid, new_file)
mock_xml.assert_called_once_with(flags=0)
mock_snapshot.assert_called_once_with(snap_xml_src, flags=snap_flags_q)
mock_get.assert_not_called()
def test_volume_snapshot_create_cannot_quiesce(self):
# We can't quiesce so we don't try.
self._test_volume_snapshot_create(can_quiesce=False)
def test_volume_snapshot_create_cannot_quiesce_quiesce_required(self):
# We can't quiesce but it's required so we fail.
self._test_volume_snapshot_create(can_quiesce=False,
quiesce_required=True)
def test_volume_snapshot_create_can_quiesce_quiesce_required_fails(self):
# We can quiesce but it fails and it's required so we fail.
self._test_volume_snapshot_create(
quiesce=False, can_quiesce=True, quiesce_required=True)
def test_volume_snapshot_create_noquiesce(self):
# We can quiesce but it fails but it's not required so we don't fail.
self._test_volume_snapshot_create(quiesce=False)
def test_volume_snapshot_create_noquiesce_cannot_quiesce(self):
# We can't quiesce so we don't try, and if we did we'd fail.
self._test_volume_snapshot_create(quiesce=False, can_quiesce=False)
@mock.patch.object(host.Host,
'has_min_version', return_value=True)
def test_can_quiesce(self, ver):
self.flags(virt_type='kvm', group='libvirt')
instance = objects.Instance(**self.inst)
image_meta = objects.ImageMeta.from_dict(
{"properties": {
"hw_qemu_guest_agent": "yes"}})
self.assertIsNone(self.drvr._can_quiesce(instance, image_meta))
@mock.patch.object(host.Host,
'has_min_version', return_value=True)
def test_can_quiesce_bad_hyp(self, ver):
self.flags(virt_type='lxc', group='libvirt')
instance = objects.Instance(**self.inst)
image_meta = objects.ImageMeta.from_dict(
{"properties": {
"hw_qemu_guest_agent": "yes"}})
self.assertRaises(exception.InstanceQuiesceNotSupported,
self.drvr._can_quiesce, instance, image_meta)
@mock.patch.object(host.Host,
'has_min_version', return_value=True)
def test_can_quiesce_agent_not_enable(self, ver):
self.flags(virt_type='kvm', group='libvirt')
instance = objects.Instance(**self.inst)
image_meta = objects.ImageMeta.from_dict({})
self.assertRaises(exception.QemuGuestAgentNotEnabled,
self.drvr._can_quiesce, instance, image_meta)
@mock.patch('oslo_service.loopingcall.FixedIntervalLoopingCall')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_volume_snapshot_create')
@mock.patch('nova.virt.libvirt.driver.LibvirtDriver.'
'_volume_refresh_connection_info')
def test_volume_snapshot_create_outer_success(self, mock_refresh,
mock_snap_create, mock_loop):
class FakeLoopingCall(object):
def __init__(self, func):
self.func = func
def start(self, *a, **k):
try:
self.func()
except loopingcall.LoopingCallDone:
pass
return self
def wait(self):
return None
mock_loop.side_effect = FakeLoopingCall
instance = objects.Instance(**self.inst)
domain = FakeVirtDomain(fake_xml=self.dom_xml, id=1)
guest = libvirt_guest.Guest(domain)
@mock.patch.object(self.drvr, '_volume_api')
@mock.patch.object(self.drvr._host, 'get_guest')
def _test(mock_get_guest, mock_vol_api):
mock_get_guest.return_value = guest
mock_vol_api.get_snapshot.return_value = {'status': 'available'}
self.drvr.volume_snapshot_create(self.c, instance,
self.volume_uuid,
self.create_info)
mock_get_guest.assert_called_once_with(instance)
mock_snap_create.assert_called_once_with(
self.c, instance, guest, self.volume_uuid,
self.create_info['new_file'])
mock_vol_api.update_snapshot_status.assert_called_once_with(
self.c, self.create_info['snapshot_id'], 'creating')
mock_vol_api.get_snapshot.assert_called_once_with(
self.c, self.create_info['snapshot_id'])
mock_refresh.assert_called_once_with(
self.c, instance, self.volume_uuid)
_test()
@mock.patch.object(libvirt_driver.LibvirtDriver, '_volume_snapshot_create')
@mock.patch('nova.volume.cinder.API.update_snapshot_status')
@mock.patch.object(host.Host, 'get_guest')
def test_volume_snapshot_create_outer_failure(self, mock_get, mock_update,
mock_snapshot):
instance = objects.Instance(**self.inst)
domain = FakeVirtDomain(fake_xml=self.dom_xml, id=1)
guest = libvirt_guest.Guest(domain)
mock_get.return_value = guest
mock_snapshot.side_effect = exception.NovaException('oops')
self.assertRaises(exception.NovaException,
self.drvr.volume_snapshot_create,
self.c,
instance,
self.volume_uuid,
self.create_info)
mock_get.assert_called_once_with(instance)
mock_update.assert_called_once_with(
self.c, self.create_info['snapshot_id'], 'error')
mock_snapshot.assert_called_once_with(
self.c, instance, guest, self.volume_uuid,
self.create_info['new_file'])
@mock.patch.object(FakeVirtDomain, 'blockCommit')
@mock.patch.object(FakeVirtDomain, 'blockRebase')
@mock.patch.object(FakeVirtDomain, 'XMLDesc')
@mock.patch.object(host.Host, '_get_domain')
@mock.patch('nova.virt.libvirt.guest.BlockDevice.is_job_complete')
def test_volume_snapshot_delete_1(self, mock_is_job_complete, mock_get,
mock_xml, mock_rebase, mock_commit):
"""Deleting newest snapshot -- blockRebase."""
# libvirt lib doesn't have VIR_DOMAIN_BLOCK_REBASE_RELATIVE flag
fakelibvirt.__dict__.pop('VIR_DOMAIN_BLOCK_REBASE_RELATIVE')
self.stub_out('nova.virt.libvirt.driver.libvirt', fakelibvirt)
instance = objects.Instance(**self.inst)
snapshot_id = 'snapshot-1234'
domain = FakeVirtDomain(fake_xml=self.dom_xml)
mock_xml.return_value = self.dom_xml
mock_get.return_value = domain
# is_job_complete returns False when initially called, then True
mock_is_job_complete.side_effect = (False, True)
self.drvr._volume_snapshot_delete(self.c, instance, self.volume_uuid,
snapshot_id, self.delete_info_1)
self.assertEqual(2, mock_is_job_complete.call_count)
mock_xml.assert_called_once_with(flags=0)
mock_get.assert_called_once_with(instance)
mock_rebase.assert_called_once_with('vda', 'snap.img', 0, flags=0)
mock_commit.assert_not_called()
fakelibvirt.__dict__.update({'VIR_DOMAIN_BLOCK_REBASE_RELATIVE': 8})
@mock.patch.object(FakeVirtDomain, 'blockCommit')
@mock.patch.object(FakeVirtDomain, 'blockRebase')
@mock.patch.object(FakeVirtDomain, 'XMLDesc')
@mock.patch.object(host.Host, 'get_guest')
@mock.patch('nova.virt.libvirt.guest.BlockDevice.is_job_complete')
def test_volume_snapshot_delete_relative_1(self, mock_is_job_complete,
mock_get, mock_xml, mock_rebase,
mock_commit):
"""Deleting newest snapshot -- blockRebase using relative flag"""
self.stub_out('nova.virt.libvirt.driver.libvirt', fakelibvirt)
instance = objects.Instance(**self.inst)
snapshot_id = 'snapshot-1234'
domain = FakeVirtDomain(fake_xml=self.dom_xml)
guest = libvirt_guest.Guest(domain)
mock_xml.return_value = self.dom_xml
mock_get.return_value = guest
# is_job_complete returns False when initially called, then True
mock_is_job_complete.side_effect = (False, True)
self.drvr._volume_snapshot_delete(self.c, instance, self.volume_uuid,
snapshot_id, self.delete_info_1)
self.assertEqual(2, mock_is_job_complete.call_count)
mock_xml.assert_called_once_with(flags=0)
mock_get.assert_called_once_with(instance)
mock_rebase.assert_called_once_with(
'vda', 'snap.img', 0,
flags=fakelibvirt.VIR_DOMAIN_BLOCK_REBASE_RELATIVE)
mock_commit.assert_not_called()
def _setup_block_rebase_domain_and_guest_mocks(self, dom_xml):
mock_domain = mock.Mock(spec=fakelibvirt.virDomain)
mock_domain.XMLDesc.return_value = dom_xml
guest = libvirt_guest.Guest(mock_domain)
exc = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError, 'virDomainBlockRebase() failed',
error_code=fakelibvirt.VIR_ERR_OPERATION_INVALID)
mock_domain.blockRebase.side_effect = exc
return mock_domain, guest
@mock.patch.object(compute_utils, 'disk_ops_semaphore')
@mock.patch.object(host.Host, "has_min_version",
mock.Mock(return_value=True))
@mock.patch("nova.virt.libvirt.guest.Guest.is_active",
mock.Mock(return_value=False))
@mock.patch('nova.virt.images.qemu_img_info',
return_value=mock.Mock(file_format="fake_fmt"))
@mock.patch('oslo_concurrency.processutils.execute')
def test_volume_snapshot_delete_when_dom_not_running(self, mock_execute,
mock_qemu_img_info,
mock_disk_op_sema):
"""Deleting newest snapshot of a file-based image when the domain is
not running should trigger a blockRebase using qemu-img not libvirt.
In this test, we rebase the image with another image as backing file.
"""
mock_domain, guest = self._setup_block_rebase_domain_and_guest_mocks(
self.dom_xml)
instance = objects.Instance(**self.inst)
snapshot_id = 'snapshot-1234'
with mock.patch.object(self.drvr._host, 'get_guest',
return_value=guest):
self.drvr._volume_snapshot_delete(self.c, instance,
self.volume_uuid, snapshot_id,
self.delete_info_1)
mock_disk_op_sema.__enter__.assert_called_once()
mock_qemu_img_info.assert_called_once_with("snap.img")
mock_execute.assert_called_once_with('qemu-img', 'rebase',
'-b', 'snap.img', '-F',
'fake_fmt', 'disk1_file')
@mock.patch.object(compute_utils, 'disk_ops_semaphore')
@mock.patch.object(host.Host, "has_min_version",
mock.Mock(return_value=True))
@mock.patch("nova.virt.libvirt.guest.Guest.is_active",
mock.Mock(return_value=False))
@mock.patch('nova.virt.images.qemu_img_info',
return_value=mock.Mock(file_format="fake_fmt"))
@mock.patch('oslo_concurrency.processutils.execute')
def test_volume_snapshot_delete_when_dom_not_running_and_no_rebase_base(
self, mock_execute, mock_qemu_img_info, mock_disk_op_sema):
"""Deleting newest snapshot of a file-based image when the domain is
not running should trigger a blockRebase using qemu-img not libvirt.
In this test, the image is rebased onto no backing file (i.e.
it will exist independently of any backing file)
"""
mock_domain, mock_guest = (
self._setup_block_rebase_domain_and_guest_mocks(self.dom_xml))
instance = objects.Instance(**self.inst)
snapshot_id = 'snapshot-1234'
with mock.patch.object(self.drvr._host, 'get_guest',
return_value=mock_guest):
self.drvr._volume_snapshot_delete(self.c, instance,
self.volume_uuid, snapshot_id,
self.delete_info_3)
mock_disk_op_sema.__enter__.assert_called_once()
self.assertEqual(0, mock_qemu_img_info.call_count)
mock_execute.assert_called_once_with('qemu-img', 'rebase',
'-b', '', 'disk1_file')
@mock.patch.object(host.Host, "has_min_version",
mock.Mock(return_value=True))
@mock.patch("nova.virt.libvirt.guest.Guest.is_active",
mock.Mock(return_value=False))
def test_volume_snapshot_delete_when_dom_with_nw_disk_not_running(self):
"""Deleting newest snapshot of a network disk when the domain is not
running should raise a NovaException.
"""
mock_domain, mock_guest = (
self._setup_block_rebase_domain_and_guest_mocks(
self.dom_netdisk_xml))
instance = objects.Instance(**self.inst)
snapshot_id = 'snapshot-1234'
with mock.patch.object(self.drvr._host, 'get_guest',
return_value=mock_guest):
ex = self.assertRaises(exception.NovaException,
self.drvr._volume_snapshot_delete,
self.c, instance, self.volume_uuid,
snapshot_id, self.delete_info_1)
self.assertIn('has not been fully tested', six.text_type(ex))
@mock.patch.object(host.Host, '_get_domain')
@mock.patch.object(FakeVirtDomain, 'blockCommit')
@mock.patch.object(FakeVirtDomain, 'blockRebase')
@mock.patch.object(FakeVirtDomain, 'XMLDesc')
@mock.patch('nova.virt.libvirt.guest.BlockDevice.is_job_complete')
def test_volume_snapshot_delete_relative_2(self, mock_is_job_complete,
mock_xml, mock_rebase,
mock_commit, mock_get):
"""Deleting older snapshot -- blockCommit using relative flag"""
self.stub_out('nova.virt.libvirt.driver.libvirt', fakelibvirt)
instance = objects.Instance(**self.inst)
snapshot_id = 'snapshot-1234'
domain = FakeVirtDomain(fake_xml=self.dom_xml)
mock_xml.return_value = self.dom_xml
mock_get.return_value = domain
# is_job_complete returns False when initially called, then True
mock_is_job_complete.side_effect = (False, True)
self.drvr._volume_snapshot_delete(self.c, instance, self.volume_uuid,
snapshot_id, self.delete_info_2)
self.assertEqual(2, mock_is_job_complete.call_count)
mock_xml.assert_called_once_with(flags=0)
mock_get.assert_called_once_with(instance)
mock_commit.assert_called_once_with(
'vda', 'other-snap.img', 'snap.img', 0,
flags=fakelibvirt.VIR_DOMAIN_BLOCK_COMMIT_RELATIVE)
mock_rebase.assert_not_called()
@mock.patch('nova.virt.libvirt.guest.BlockDevice.is_job_complete')
def test_volume_snapshot_delete_nonrelative_null_base(
self, mock_is_job_complete):
# Deleting newest and last snapshot of a volume
# with blockRebase. So base of the new image will be null.
instance = objects.Instance(**self.inst)
snapshot_id = 'snapshot-1234'
domain = FakeVirtDomain(fake_xml=self.dom_xml)
guest = libvirt_guest.Guest(domain)
mock_is_job_complete.return_value = True
with test.nested(
mock.patch.object(domain, 'XMLDesc', return_value=self.dom_xml),
mock.patch.object(self.drvr._host, 'get_guest',
return_value=guest),
mock.patch.object(domain, 'blockRebase'),
) as (mock_xmldesc, mock_get_guest, mock_rebase):
self.drvr._volume_snapshot_delete(self.c, instance,
self.volume_uuid, snapshot_id,
self.delete_info_3)
mock_xmldesc.assert_called_once_with(flags=0)
mock_get_guest.assert_called_once_with(instance)
mock_rebase.assert_called_once_with('vda', None, 0, flags=0)
mock_is_job_complete.assert_called()
@mock.patch('nova.virt.libvirt.guest.BlockDevice.is_job_complete')
def test_volume_snapshot_delete_netdisk_nonrelative_null_base(
self, mock_is_job_complete):
# Deleting newest and last snapshot of a network attached volume
# with blockRebase. So base of the new image will be null.
instance = objects.Instance(**self.inst)
snapshot_id = 'snapshot-1234'
domain = FakeVirtDomain(fake_xml=self.dom_netdisk_xml_2)
guest = libvirt_guest.Guest(domain)
mock_is_job_complete.return_value = True
with test.nested(
mock.patch.object(domain, 'XMLDesc',
return_value=self.dom_netdisk_xml_2),
mock.patch.object(self.drvr._host, 'get_guest',
return_value=guest),
mock.patch.object(domain, 'blockRebase'),
) as (mock_xmldesc, mock_get_guest, mock_rebase):
self.drvr._volume_snapshot_delete(self.c, instance,
self.volume_uuid, snapshot_id,
self.delete_info_3)
mock_xmldesc.assert_called_once_with(flags=0)
mock_get_guest.assert_called_once_with(instance)
mock_rebase.assert_called_once_with('vdb', None, 0, flags=0)
mock_is_job_complete.assert_called()
@mock.patch('nova.volume.cinder.API.update_snapshot_status')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_volume_refresh_connection_info')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_volume_snapshot_delete')
@mock.patch.object(host.Host, '_get_domain')
def test_volume_snapshot_delete_outer_success(
self, mock_get, mock_snapshot, mock_refresh, mock_update):
instance = objects.Instance(**self.inst)
snapshot_id = 'snapshot-1234'
self.drvr.volume_snapshot_delete(self.c, instance, self.volume_uuid,
snapshot_id,
self.delete_info_1)
mock_snapshot.assert_called_once_with(
self.c, instance, self.volume_uuid, snapshot_id,
delete_info=self.delete_info_1)
mock_update.assert_called_once_with(self.c, snapshot_id, 'deleting')
mock_refresh.assert_called_once_with(self.c, instance,
self.volume_uuid)
mock_get.assert_not_called()
@mock.patch('nova.volume.cinder.API.update_snapshot_status')
@mock.patch.object(libvirt_driver.LibvirtDriver,
'_volume_snapshot_delete')
@mock.patch.object(host.Host, '_get_domain')
def test_volume_snapshot_delete_outer_failure(
self, mock_get, mock_snapshot, mock_update):
instance = objects.Instance(**self.inst)
snapshot_id = '1234-9876'
mock_snapshot.side_effect = exception.NovaException('oops')
self.assertRaises(exception.NovaException,
self.drvr.volume_snapshot_delete,
self.c,
instance,
self.volume_uuid,
snapshot_id,
self.delete_info_1)
mock_snapshot.assert_called_once_with(
self.c, instance, self.volume_uuid, snapshot_id,
delete_info=self.delete_info_1)
mock_update.assert_called_once_with(self.c, snapshot_id,
'error_deleting')
mock_get.assert_not_called()
@mock.patch('nova.volume.cinder.API.update_snapshot_status')
@mock.patch.object(host.Host, '_get_domain')
def test_volume_snapshot_delete_invalid_type(self, mock_get,
mock_update):
instance = objects.Instance(**self.inst)
self.assertRaises(exception.NovaException,
self.drvr.volume_snapshot_delete,
self.c,
instance,
self.volume_uuid,
self.snapshot_id,
self.delete_info_invalid_type)
mock_update.assert_called_once_with(self.c, self.snapshot_id,
'error_deleting')
mock_get.assert_not_called()
@mock.patch.object(host.Host, '_get_domain')
@mock.patch('nova.virt.libvirt.guest.BlockDevice.is_job_complete')
def test_volume_snapshot_delete_netdisk_1(
self, mock_is_job_complete, mock_get):
"""Delete newest snapshot -- blockRebase for libgfapi/network disk."""
class FakeNetdiskDomain(FakeVirtDomain):
def __init__(self, *args, **kwargs):
super(FakeNetdiskDomain, self).__init__(*args, **kwargs)
def XMLDesc(self, flags):
return self.dom_netdisk_xml
# libvirt lib doesn't have VIR_DOMAIN_BLOCK_REBASE_RELATIVE
fakelibvirt.__dict__.pop('VIR_DOMAIN_BLOCK_REBASE_RELATIVE')
self.stub_out('nova.virt.libvirt.driver.libvirt', fakelibvirt)
instance = objects.Instance(**self.inst)
snapshot_id = 'snapshot-1234'
domain = FakeNetdiskDomain(fake_xml=self.dom_netdisk_xml)
mock_get.return_value = domain
# is_job_complete returns False when initially called, then True
mock_is_job_complete.side_effect = (False, True)
with test.nested(
mock.patch.object(FakeNetdiskDomain, 'XMLDesc',
return_value=self.dom_netdisk_xml),
mock.patch.object(FakeNetdiskDomain, 'blockRebase'),
mock.patch.object(FakeNetdiskDomain, 'blockCommit')) as (mock_xml,
mock_rebase, mock_commit):
self.drvr._volume_snapshot_delete(self.c, instance,
self.volume_uuid,
snapshot_id, self.delete_info_1)
self.assertEqual(2, mock_is_job_complete.call_count)
mock_xml.assert_called_once_with(flags=0)
mock_get.assert_called_once_with(instance)
mock_rebase.assert_called_once_with('vdb', 'vdb[1]', 0, flags=0)
mock_commit.assert_not_called()
fakelibvirt.__dict__.update({'VIR_DOMAIN_BLOCK_REBASE_RELATIVE': 8})
@mock.patch.object(host.Host, '_get_domain')
@mock.patch('nova.virt.libvirt.guest.BlockDevice.is_job_complete')
def test_volume_snapshot_delete_netdisk_relative_1(
self, mock_is_job_complete, mock_get):
"""Delete newest snapshot -- blockRebase for libgfapi/network disk."""
class FakeNetdiskDomain(FakeVirtDomain):
def __init__(self, *args, **kwargs):
super(FakeNetdiskDomain, self).__init__(*args, **kwargs)
def XMLDesc(self, flags):
return self.dom_netdisk_xml
self.stub_out('nova.virt.libvirt.driver.libvirt', fakelibvirt)
instance = objects.Instance(**self.inst)
snapshot_id = 'snapshot-1234'
domain = FakeNetdiskDomain(fake_xml=self.dom_netdisk_xml)
mock_get.return_value = domain
# is_job_complete returns False when initially called, then True
mock_is_job_complete.side_effect = (False, True)
with test.nested(
mock.patch.object(FakeNetdiskDomain, 'XMLDesc',
return_value=self.dom_netdisk_xml),
mock.patch.object(FakeNetdiskDomain, 'blockRebase'),
mock.patch.object(FakeNetdiskDomain, 'blockCommit')) as (mock_xml,
mock_rebase, mock_commit):
self.drvr._volume_snapshot_delete(self.c, instance,
self.volume_uuid,
snapshot_id, self.delete_info_1)
self.assertEqual(2, mock_is_job_complete.call_count)
mock_xml.assert_called_once_with(flags=0)
mock_get.assert_called_once_with(instance)
mock_rebase.assert_called_once_with(
'vdb', 'vdb[1]', 0,
flags=fakelibvirt.VIR_DOMAIN_BLOCK_REBASE_RELATIVE)
mock_commit.assert_not_called()
@mock.patch.object(host.Host, '_get_domain')
@mock.patch('nova.virt.libvirt.guest.BlockDevice.is_job_complete')
def test_volume_snapshot_delete_netdisk_relative_2(
self, mock_is_job_complete, mock_get):
"""Delete older snapshot -- blockCommit for libgfapi/network disk."""
class FakeNetdiskDomain(FakeVirtDomain):
def __init__(self, *args, **kwargs):
super(FakeNetdiskDomain, self).__init__(*args, **kwargs)
def XMLDesc(self, flags):
return self.dom_netdisk_xml
self.stub_out('nova.virt.libvirt.driver.libvirt', fakelibvirt)
instance = objects.Instance(**self.inst)
snapshot_id = 'snapshot-1234'
domain = FakeNetdiskDomain(fake_xml=self.dom_netdisk_xml)
mock_get.return_value = domain
# is_job_complete returns False when initially called, then True
mock_is_job_complete.side_effect = (False, True)
with test.nested(
mock.patch.object(FakeNetdiskDomain, 'XMLDesc',
return_value=self.dom_netdisk_xml),
mock.patch.object(FakeNetdiskDomain, 'blockRebase'),
mock.patch.object(FakeNetdiskDomain, 'blockCommit')) as (mock_xml,
mock_rebase, mock_commit):
self.drvr._volume_snapshot_delete(self.c, instance,
self.volume_uuid,
snapshot_id,
self.delete_info_netdisk)
self.assertEqual(2, mock_is_job_complete.call_count)
mock_xml.assert_called_once_with(flags=0)
mock_get.assert_called_once_with(instance)
mock_commit.assert_called_once_with(
'vdb', 'vdb[0]', 'vdb[1]', 0,
flags=fakelibvirt.VIR_DOMAIN_BLOCK_COMMIT_RELATIVE)
mock_rebase.assert_not_called()
def _fake_convert_image(source, dest, in_format, out_format,
run_as_root=True):
libvirt_driver.libvirt_utils.files[dest] = b''
class _BaseSnapshotTests(test.NoDBTestCase):
def setUp(self):
super(_BaseSnapshotTests, self).setUp()
self.flags(snapshots_directory='./', group='libvirt')
self.context = context.get_admin_context()
self.useFixture(fixtures.MonkeyPatch(
'nova.virt.libvirt.driver.libvirt_utils',
fake_libvirt_utils))
self.useFixture(fixtures.MonkeyPatch(
'nova.virt.libvirt.imagebackend.libvirt_utils',
fake_libvirt_utils))
self.useFixture(fakelibvirt.FakeLibvirtFixture())
self.image_service = nova.tests.unit.image.fake.stub_out_image_service(
self)
self.mock_update_task_state = mock.Mock()
test_instance = _create_test_instance()
self.instance_ref = objects.Instance(**test_instance)
self.instance_ref.info_cache = objects.InstanceInfoCache(
network_info=None)
def _assert_snapshot(self, snapshot, disk_format,
expected_properties=None):
self.mock_update_task_state.assert_has_calls([
mock.call(task_state=task_states.IMAGE_PENDING_UPLOAD),
mock.call(task_state=task_states.IMAGE_UPLOADING,
expected_state=task_states.IMAGE_PENDING_UPLOAD)])
props = snapshot['properties']
self.assertEqual(props['image_state'], 'available')
self.assertEqual(snapshot['status'], 'active')
self.assertEqual(snapshot['disk_format'], disk_format)
self.assertEqual(snapshot['name'], 'test-snap')
if expected_properties:
for expected_key, expected_value in \
expected_properties.items():
self.assertEqual(expected_value, props[expected_key])
def _create_image(self, extra_properties=None):
properties = {'instance_id': self.instance_ref['id'],
'user_id': str(self.context.user_id)}
if extra_properties:
properties.update(extra_properties)
sent_meta = {'name': 'test-snap',
'is_public': False,
'status': 'creating',
'properties': properties}
# Create new image. It will be updated in snapshot method
# To work with it from snapshot, the single image_service is needed
recv_meta = self.image_service.create(self.context, sent_meta)
return recv_meta
@mock.patch.object(compute_utils, 'disk_ops_semaphore',
new_callable=compute_utils.UnlimitedSemaphore)
@mock.patch.object(host.Host, 'has_min_version')
@mock.patch.object(imagebackend.Image, 'resolve_driver_format')
@mock.patch.object(host.Host, '_get_domain')
def _snapshot(self, image_id, mock_get_domain, mock_resolve, mock_version,
mock_disk_op_sema):
mock_get_domain.return_value = FakeVirtDomain()
driver = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
driver.snapshot(self.context, self.instance_ref, image_id,
self.mock_update_task_state)
snapshot = self.image_service.show(self.context, image_id)
return snapshot
def _test_snapshot(self, disk_format, extra_properties=None):
recv_meta = self._create_image(extra_properties=extra_properties)
snapshot = self._snapshot(recv_meta['id'])
self._assert_snapshot(snapshot, disk_format=disk_format,
expected_properties=extra_properties)
class LibvirtSnapshotTests(_BaseSnapshotTests):
def setUp(self):
super(LibvirtSnapshotTests, self).setUp()
# All paths through livesnapshot trigger a chown behind privsep
self.privsep_chown = mock.patch.object(nova.privsep.path, 'chown')
self.addCleanup(self.privsep_chown.stop)
self.privsep_chown.start()
def test_ami(self):
# Assign different image_ref from nova/images/fakes for testing ami
self.instance_ref.image_ref = 'c905cedb-7281-47e4-8a62-f26bc5fc4c77'
self.instance_ref.system_metadata = \
utils.get_system_metadata_from_image(
{'disk_format': 'ami'})
self._test_snapshot(disk_format='ami')
@mock.patch.object(fake_libvirt_utils, 'disk_type', new='raw')
@mock.patch.object(libvirt_driver.imagebackend.images,
'convert_image',
side_effect=_fake_convert_image)
def test_raw(self, mock_convert_image):
self._test_snapshot(disk_format='raw')
def test_qcow2(self):
self._test_snapshot(disk_format='qcow2')
@mock.patch.object(fake_libvirt_utils, 'disk_type', new='ploop')
@mock.patch.object(libvirt_driver.imagebackend.images,
'convert_image',
side_effect=_fake_convert_image)
def test_ploop(self, mock_convert_image):
self._test_snapshot(disk_format='ploop')
def test_no_image_architecture(self):
self.instance_ref.image_ref = '76fa36fc-c930-4bf3-8c8a-ea2a2420deb6'
self._test_snapshot(disk_format='qcow2')
def test_no_original_image(self):
self.instance_ref.image_ref = '661122aa-1234-dede-fefe-babababababa'
self._test_snapshot(disk_format='qcow2')
def test_snapshot_metadata_image(self):
# Assign an image with an architecture defined (x86_64)
self.instance_ref.image_ref = 'a440c04b-79fa-479c-bed1-0b816eaec379'
extra_properties = {'architecture': 'fake_arch',
'key_a': 'value_a',
'key_b': 'value_b',
'os_type': 'linux'}
self._test_snapshot(disk_format='qcow2',
extra_properties=extra_properties)
@mock.patch.object(libvirt_driver.LOG, 'exception')
def test_snapshot_update_task_state_failed(self, mock_exception):
res = [None, exception.InstanceNotFound(instance_id='foo')]
self.mock_update_task_state.side_effect = res
self.assertRaises(exception.InstanceNotFound, self._test_snapshot,
disk_format='qcow2')
self.assertFalse(mock_exception.called)
@mock.patch.object(host.Host, 'get_guest')
@mock.patch.object(host.Host, 'write_instance_config')
def test_failing_domain_not_found(self, mock_write_config, mock_get_guest):
mock_dev = mock.Mock(spec=libvirt_guest.BlockDevice)
mock_guest = mock.Mock(spec=libvirt_guest.Guest)
mock_guest.get_power_state.return_value = power_state.RUNNING
mock_guest.get_block_device.return_value = mock_dev
mock_guest._domain = mock.Mock()
mock_get_guest.return_value = mock_guest
ex = fakelibvirt.make_libvirtError(
fakelibvirt.libvirtError,
"No such domain",
error_code=fakelibvirt.VIR_ERR_NO_DOMAIN)
mock_dev.rebase.side_effect = ex
self.assertRaises(exception.InstanceNotFound, self._test_snapshot,
disk_format='qcow2')
@mock.patch.object(rbd_utils, 'RBDDriver')
@mock.patch.object(rbd_utils, 'rbd')
def test_raw_with_rbd_clone(self, mock_rbd, mock_driver):
self.flags(images_type='rbd', group='libvirt')
rbd = mock_driver.return_value
rbd.parent_info = mock.Mock(return_value=['test-pool', '', ''])
rbd.parse_url = mock.Mock(return_value=['a', 'b', 'c', 'd'])
with mock.patch.object(fake_libvirt_utils, 'find_disk',
return_value=('rbd://some/fake/rbd/image',
'raw')):
with mock.patch.object(fake_libvirt_utils, 'disk_type', new='rbd'):
self._test_snapshot(disk_format='raw')
rbd.clone.assert_called_with(mock.ANY, mock.ANY, dest_pool='test-pool')
rbd.flatten.assert_called_with(mock.ANY, pool='test-pool')
@mock.patch.object(rbd_utils, 'RBDDriver')
@mock.patch.object(rbd_utils, 'rbd')
def test_raw_with_rbd_clone_graceful_fallback(self, mock_rbd, mock_driver):
self.flags(images_type='rbd', group='libvirt')
rbd = mock_driver.return_value
rbd.parent_info = mock.Mock(side_effect=exception.ImageUnacceptable(
image_id='fake_id', reason='rbd testing'))
with test.nested(
mock.patch.object(libvirt_driver.imagebackend.images,
'convert_image',
side_effect=_fake_convert_image),
mock.patch.object(fake_libvirt_utils, 'find_disk',
return_value=('rbd://some/fake/rbd/image',
'raw')),
mock.patch.object(fake_libvirt_utils, 'disk_type', new='rbd')):
self._test_snapshot(disk_format='raw')
self.assertFalse(rbd.clone.called)
@mock.patch.object(rbd_utils, 'RBDDriver')
@mock.patch.object(rbd_utils, 'rbd')
def test_raw_with_rbd_clone_eperm(self, mock_rbd, mock_driver):
self.flags(images_type='rbd', group='libvirt')
rbd = mock_driver.return_value
rbd.parent_info = mock.Mock(return_value=['test-pool', '', ''])
rbd.parse_url = mock.Mock(return_value=['a', 'b', 'c', 'd'])
rbd.clone = mock.Mock(side_effect=exception.Forbidden(
image_id='fake_id', reason='rbd testing'))
with test.nested(
mock.patch.object(libvirt_driver.imagebackend.images,
'convert_image',
side_effect=_fake_convert_image),
mock.patch.object(fake_libvirt_utils, 'find_disk',
return_value=('rbd://some/fake/rbd/image',
'raw')),
mock.patch.object(fake_libvirt_utils, 'disk_type', new='rbd')):
self._test_snapshot(disk_format='raw')
# Ensure that the direct_snapshot attempt was cleaned up
rbd.remove_snap.assert_called_with('c', 'd', ignore_errors=False,
pool='b', force=True)
@mock.patch.object(rbd_utils, 'RBDDriver')
@mock.patch.object(rbd_utils, 'rbd')
def test_raw_with_rbd_clone_post_process_fails(self, mock_rbd,
mock_driver):
self.flags(images_type='rbd', group='libvirt')
rbd = mock_driver.return_value
rbd.parent_info = mock.Mock(return_value=['test-pool', '', ''])
rbd.parse_url = mock.Mock(return_value=['a', 'b', 'c', 'd'])
with test.nested(
mock.patch.object(fake_libvirt_utils, 'find_disk',
return_value=('rbd://some/fake/rbd/image',
'raw')),
mock.patch.object(fake_libvirt_utils, 'disk_type', new='rbd'),
mock.patch.object(self.image_service, 'update',
side_effect=test.TestingException)):
self.assertRaises(test.TestingException, self._test_snapshot,
disk_format='raw')
rbd.clone.assert_called_with(mock.ANY, mock.ANY, dest_pool='test-pool')
rbd.flatten.assert_called_with(mock.ANY, pool='test-pool')
# Ensure that the direct_snapshot attempt was cleaned up
rbd.remove_snap.assert_called_with('c', 'd', ignore_errors=True,
pool='b', force=True)
@mock.patch.object(imagebackend.Image, 'direct_snapshot')
@mock.patch.object(imagebackend.Image, 'resolve_driver_format')
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
@mock.patch.object(host.Host, 'get_guest')
def test_raw_with_rbd_clone_is_live_snapshot(self,
mock_get_guest,
mock_version,
mock_resolve,
mock_snapshot):
self.flags(images_type='rbd', group='libvirt')
mock_guest = mock.Mock(spec=libvirt_guest.Guest)
mock_guest._domain = mock.Mock()
mock_get_guest.return_value = mock_guest
driver = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
recv_meta = self._create_image()
with mock.patch.object(driver, "suspend") as mock_suspend:
driver.snapshot(self.context, self.instance_ref, recv_meta['id'],
self.mock_update_task_state)
self.assertFalse(mock_suspend.called)
@mock.patch.object(libvirt_driver.imagebackend.images, 'convert_image',
side_effect=_fake_convert_image)
@mock.patch.object(fake_libvirt_utils, 'find_disk')
@mock.patch.object(imagebackend.Image, 'resolve_driver_format')
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
@mock.patch.object(host.Host, 'get_guest')
@mock.patch.object(rbd_utils, 'RBDDriver')
@mock.patch.object(rbd_utils, 'rbd')
def test_raw_with_rbd_clone_failure_does_cold_snapshot(self,
mock_rbd,
mock_driver,
mock_get_guest,
mock_version,
mock_resolve,
mock_find_disk,
mock_convert):
self.flags(images_type='rbd', group='libvirt')
rbd = mock_driver.return_value
rbd.parent_info = mock.Mock(side_effect=exception.ImageUnacceptable(
image_id='fake_id', reason='rbd testing'))
mock_find_disk.return_value = ('rbd://some/fake/rbd/image', 'raw')
mock_guest = mock.Mock(spec=libvirt_guest.Guest)
mock_guest.get_power_state.return_value = power_state.RUNNING
mock_guest._domain = mock.Mock()
mock_get_guest.return_value = mock_guest
driver = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
recv_meta = self._create_image()
with mock.patch.object(fake_libvirt_utils, 'disk_type', new='rbd'):
with mock.patch.object(driver, "suspend") as mock_suspend:
driver.snapshot(self.context, self.instance_ref,
recv_meta['id'], self.mock_update_task_state)
self.assertTrue(mock_suspend.called)
@mock.patch.object(host.Host, 'get_guest')
@mock.patch.object(host.Host, 'has_min_version', return_value=True)
def test_cold_snapshot_based_on_power_state(
self, mock_version, mock_get_guest):
"""Tests that a cold snapshot is attempted because the guest power
state is SHUTDOWN or PAUSED.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI())
image = self._create_image()
for p_state in (power_state.SHUTDOWN, power_state.PAUSED):
mock_guest = mock.Mock(spec=libvirt_guest.Guest)
mock_guest.get_power_state.return_value = p_state
mock_guest._domain = mock.Mock()
mock_get_guest.return_value = mock_guest
# Make _prepare_domain_for_snapshot short-circuit and fail, we just
# want to know that it was called with the correct live_snapshot
# argument based on the power_state.
with mock.patch.object(
drvr, '_prepare_domain_for_snapshot',
side_effect=test.TestingException) as mock_prep:
self.assertRaises(test.TestingException,
drvr.snapshot, self.context,
self.instance_ref, image['id'],
self.mock_update_task_state)
mock_prep.assert_called_once_with(
self.context, False, p_state, self.instance_ref)
class LXCSnapshotTests(LibvirtSnapshotTests):
"""Repeat all of the Libvirt snapshot tests, but with LXC enabled"""
def setUp(self):
super(LXCSnapshotTests, self).setUp()
self.flags(virt_type='lxc', group='libvirt')
def test_raw_with_rbd_clone_failure_does_cold_snapshot(self):
self.skipTest("managedSave is not supported with LXC")
class LVMSnapshotTests(_BaseSnapshotTests):
@mock.patch.object(fake_libvirt_utils, 'disk_type', new='lvm')
@mock.patch.object(libvirt_driver.imagebackend.images,
'convert_image',
side_effect=_fake_convert_image)
@mock.patch.object(libvirt_driver.imagebackend.lvm, 'volume_info')
def _test_lvm_snapshot(self, disk_format, mock_volume_info,
mock_convert_image):
self.flags(images_type='lvm',
images_volume_group='nova-vg', group='libvirt')
self._test_snapshot(disk_format=disk_format)
mock_volume_info.assert_has_calls([mock.call('/dev/nova-vg/lv')])
mock_convert_image.assert_called_once_with(
'/dev/nova-vg/lv', mock.ANY, 'raw', disk_format,
run_as_root=True)
def test_raw(self):
self._test_lvm_snapshot('raw')
def test_qcow2(self):
self.flags(snapshot_image_format='qcow2', group='libvirt')
self._test_lvm_snapshot('qcow2')
class TestLibvirtMultiattach(test.NoDBTestCase):
"""Libvirt driver tests for volume multiattach support."""
def setUp(self):
super(TestLibvirtMultiattach, self).setUp()
self.useFixture(fakelibvirt.FakeLibvirtFixture())
@mock.patch('nova.virt.libvirt.host.Host.has_min_version',
return_value=True)
def test_init_host_supports_multiattach_new_enough_libvirt(self, min_ver):
"""Tests that the driver supports multiattach because libvirt>=3.10.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr._set_multiattach_support()
self.assertTrue(drvr.capabilities['supports_multiattach'])
min_ver.assert_called_once_with(
lv_ver=libvirt_driver.MIN_LIBVIRT_MULTIATTACH)
@mock.patch('nova.virt.libvirt.host.Host.has_min_version',
side_effect=[False, False])
def test_init_host_supports_multiattach_old_enough_qemu(self, min_ver):
"""Tests that the driver supports multiattach because qemu<2.10.
"""
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr._set_multiattach_support()
self.assertTrue(drvr.capabilities['supports_multiattach'])
calls = [mock.call(lv_ver=libvirt_driver.MIN_LIBVIRT_MULTIATTACH),
mock.call(hv_ver=(2, 10, 0))]
min_ver.assert_has_calls(calls)
# FIXME(mriedem): This test intermittently fails when run at the same time
# as LibvirtConnTestCase, presumably because of shared global state on the
# version check.
# @mock.patch('nova.virt.libvirt.host.Host.has_min_version',
# side_effect=[False, True])
# def test_init_host_supports_multiattach_no_support(self,
# has_min_version):
# """Tests that the driver does not support multiattach because
# qemu>=2.10 and libvirt<3.10.
# """
# drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
# drvr._set_multiattach_support()
# self.assertFalse(drvr.capabilities['supports_multiattach'])
# calls = [mock.call(lv_ver=libvirt_driver.MIN_LIBVIRT_MULTIATTACH),
# mock.call(hv_ver=(2, 10, 0))]
# has_min_version.assert_has_calls(calls)
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