7402822f0b
this is the inital patch of applying codespell to nova. codespell is a programing focused spellchecker that looks for common typos and corrects them. i am breaking this into multiple commits to make it simpler to read and will automate the execution of codespell at the end of the series. Change-Id: If24a6c0a890f713545faa2d44b069c352655274e
1128 lines
50 KiB
Python
1128 lines
50 KiB
Python
# Copyright (c) 2010 Cloud.com, Inc
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# Copyright 2012 Cloudbase Solutions Srl
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Management class for basic VM operations.
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"""
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import contextlib
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import functools
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import os
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import time
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from eventlet import timeout as etimeout
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from os_win import constants as os_win_const
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from os_win import exceptions as os_win_exc
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from os_win import utilsfactory
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from oslo_concurrency import processutils
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from oslo_log import log as logging
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from oslo_service import loopingcall
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from oslo_utils import excutils
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from oslo_utils import fileutils
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from oslo_utils import units
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from oslo_utils import uuidutils
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from nova.api.metadata import base as instance_metadata
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from nova.compute import vm_states
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import nova.conf
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from nova import exception
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from nova.i18n import _
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from nova import objects
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from nova.objects import fields
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from nova import version
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from nova.virt import configdrive
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from nova.virt import hardware
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from nova.virt.hyperv import block_device_manager
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from nova.virt.hyperv import constants
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from nova.virt.hyperv import imagecache
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from nova.virt.hyperv import pathutils
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from nova.virt.hyperv import serialconsoleops
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from nova.virt.hyperv import vif as vif_utils
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from nova.virt.hyperv import volumeops
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LOG = logging.getLogger(__name__)
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CONF = nova.conf.CONF
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SHUTDOWN_TIME_INCREMENT = 5
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REBOOT_TYPE_SOFT = 'SOFT'
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REBOOT_TYPE_HARD = 'HARD'
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VM_GENERATIONS = {
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constants.IMAGE_PROP_VM_GEN_1: constants.VM_GEN_1,
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constants.IMAGE_PROP_VM_GEN_2: constants.VM_GEN_2
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}
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VM_GENERATIONS_CONTROLLER_TYPES = {
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constants.VM_GEN_1: constants.CTRL_TYPE_IDE,
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constants.VM_GEN_2: constants.CTRL_TYPE_SCSI
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}
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def check_admin_permissions(function):
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@functools.wraps(function)
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def wrapper(self, *args, **kwds):
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# Make sure the windows account has the required admin permissions.
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self._vmutils.check_admin_permissions()
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return function(self, *args, **kwds)
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return wrapper
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class VMOps(object):
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# The console log is stored in two files, each should have at most half of
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# the maximum console log size.
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_MAX_CONSOLE_LOG_FILE_SIZE = units.Mi / 2
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_ROOT_DISK_CTRL_ADDR = 0
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def __init__(self, virtapi=None):
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self._virtapi = virtapi
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self._vmutils = utilsfactory.get_vmutils()
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self._metricsutils = utilsfactory.get_metricsutils()
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self._vhdutils = utilsfactory.get_vhdutils()
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self._hostutils = utilsfactory.get_hostutils()
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self._migrutils = utilsfactory.get_migrationutils()
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self._pathutils = pathutils.PathUtils()
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self._volumeops = volumeops.VolumeOps()
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self._imagecache = imagecache.ImageCache()
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self._serial_console_ops = serialconsoleops.SerialConsoleOps()
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self._block_dev_man = (
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block_device_manager.BlockDeviceInfoManager())
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self._vif_driver = vif_utils.HyperVVIFDriver()
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def list_instance_uuids(self):
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instance_uuids = []
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for (instance_name, notes) in self._vmutils.list_instance_notes():
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if notes and uuidutils.is_uuid_like(notes[0]):
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instance_uuids.append(str(notes[0]))
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else:
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LOG.debug("Notes not found or not resembling a GUID for "
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"instance: %s", instance_name)
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return instance_uuids
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def list_instances(self):
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return self._vmutils.list_instances()
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def get_info(self, instance):
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"""Get information about the VM."""
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LOG.debug("get_info called for instance", instance=instance)
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instance_name = instance.name
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if not self._vmutils.vm_exists(instance_name):
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raise exception.InstanceNotFound(instance_id=instance.uuid)
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info = self._vmutils.get_vm_summary_info(instance_name)
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state = constants.HYPERV_POWER_STATE[info['EnabledState']]
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return hardware.InstanceInfo(state=state)
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def _create_root_device(self, context, instance, root_disk_info, vm_gen):
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path = None
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if root_disk_info['type'] == constants.DISK:
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path = self._create_root_vhd(context, instance)
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self.check_vm_image_type(instance.uuid, vm_gen, path)
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root_disk_info['path'] = path
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def _create_root_vhd(self, context, instance, rescue_image_id=None):
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is_rescue_vhd = rescue_image_id is not None
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base_vhd_path = self._imagecache.get_cached_image(context, instance,
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rescue_image_id)
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base_vhd_info = self._vhdutils.get_vhd_info(base_vhd_path)
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base_vhd_size = base_vhd_info['VirtualSize']
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format_ext = base_vhd_path.split('.')[-1]
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root_vhd_path = self._pathutils.get_root_vhd_path(instance.name,
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format_ext,
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is_rescue_vhd)
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root_vhd_size = instance.flavor.root_gb * units.Gi
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try:
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if CONF.use_cow_images:
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LOG.debug("Creating differencing VHD. Parent: "
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"%(base_vhd_path)s, Target: %(root_vhd_path)s",
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{'base_vhd_path': base_vhd_path,
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'root_vhd_path': root_vhd_path},
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instance=instance)
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self._vhdutils.create_differencing_vhd(root_vhd_path,
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base_vhd_path)
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vhd_type = self._vhdutils.get_vhd_format(base_vhd_path)
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if vhd_type == constants.DISK_FORMAT_VHD:
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# The base image has already been resized. As differencing
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# vhdx images support it, the root image will be resized
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# instead if needed.
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return root_vhd_path
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else:
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LOG.debug("Copying VHD image %(base_vhd_path)s to target: "
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"%(root_vhd_path)s",
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{'base_vhd_path': base_vhd_path,
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'root_vhd_path': root_vhd_path},
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instance=instance)
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self._pathutils.copyfile(base_vhd_path, root_vhd_path)
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root_vhd_internal_size = (
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self._vhdutils.get_internal_vhd_size_by_file_size(
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base_vhd_path, root_vhd_size))
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if not is_rescue_vhd and self._is_resize_needed(
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root_vhd_path, base_vhd_size,
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root_vhd_internal_size, instance):
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self._vhdutils.resize_vhd(root_vhd_path,
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root_vhd_internal_size,
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is_file_max_size=False)
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except Exception:
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with excutils.save_and_reraise_exception():
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if self._pathutils.exists(root_vhd_path):
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self._pathutils.remove(root_vhd_path)
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return root_vhd_path
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def _is_resize_needed(self, vhd_path, old_size, new_size, instance):
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if new_size < old_size:
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raise exception.FlavorDiskSmallerThanImage(
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flavor_size=new_size, image_size=old_size)
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elif new_size > old_size:
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LOG.debug("Resizing VHD %(vhd_path)s to new "
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"size %(new_size)s",
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{'new_size': new_size,
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'vhd_path': vhd_path},
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instance=instance)
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return True
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return False
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def _create_ephemerals(self, instance, ephemerals):
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for index, eph in enumerate(ephemerals):
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eph['format'] = self._vhdutils.get_best_supported_vhd_format()
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eph_name = "eph%s" % index
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eph['path'] = self._pathutils.get_ephemeral_vhd_path(
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instance.name, eph['format'], eph_name)
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self.create_ephemeral_disk(instance.name, eph)
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def create_ephemeral_disk(self, instance_name, eph_info):
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self._vhdutils.create_dynamic_vhd(eph_info['path'],
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eph_info['size'] * units.Gi)
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@staticmethod
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def _get_vif_metadata(context, instance_id):
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vifs = objects.VirtualInterfaceList.get_by_instance_uuid(context,
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instance_id)
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vif_metadata = []
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for vif in vifs:
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if 'tag' in vif and vif.tag:
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device = objects.NetworkInterfaceMetadata(
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mac=vif.address,
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bus=objects.PCIDeviceBus(),
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tags=[vif.tag])
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vif_metadata.append(device)
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return vif_metadata
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def _save_device_metadata(self, context, instance, block_device_info):
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"""Builds a metadata object for instance devices, that maps the user
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provided tag to the hypervisor assigned device address.
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"""
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metadata = []
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metadata.extend(self._get_vif_metadata(context, instance.uuid))
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if block_device_info:
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metadata.extend(self._block_dev_man.get_bdm_metadata(
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context, instance, block_device_info))
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if metadata:
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instance.device_metadata = objects.InstanceDeviceMetadata(
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devices=metadata)
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def set_boot_order(self, instance_name, vm_gen, block_device_info):
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boot_order = self._block_dev_man.get_boot_order(
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vm_gen, block_device_info)
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LOG.debug("Setting boot order for instance: %(instance_name)s: "
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"%(boot_order)s", {'instance_name': instance_name,
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'boot_order': boot_order})
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self._vmutils.set_boot_order(instance_name, boot_order)
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@check_admin_permissions
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def spawn(self, context, instance, image_meta, injected_files,
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admin_password, network_info, block_device_info=None):
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"""Create a new VM and start it."""
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LOG.info("Spawning new instance", instance=instance)
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instance_name = instance.name
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if self._vmutils.vm_exists(instance_name):
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raise exception.InstanceExists(name=instance_name)
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# Make sure we're starting with a clean slate.
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self._delete_disk_files(instance_name)
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vm_gen = self.get_image_vm_generation(instance.uuid, image_meta)
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self._block_dev_man.validate_and_update_bdi(
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instance, image_meta, vm_gen, block_device_info)
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root_device = block_device_info['root_disk']
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self._create_root_device(context, instance, root_device, vm_gen)
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self._create_ephemerals(instance, block_device_info['ephemerals'])
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try:
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with self.wait_vif_plug_events(instance, network_info):
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# waiting will occur after the instance is created.
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self.create_instance(instance, network_info, root_device,
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block_device_info, vm_gen, image_meta)
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# This is supported starting from OVS version 2.5
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self.plug_vifs(instance, network_info)
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self._save_device_metadata(context, instance, block_device_info)
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if configdrive.required_by(instance):
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configdrive_path = self._create_config_drive(context,
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instance,
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injected_files,
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admin_password,
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network_info)
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self.attach_config_drive(instance, configdrive_path, vm_gen)
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self.set_boot_order(instance.name, vm_gen, block_device_info)
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# vifs are already plugged in at this point. We waited on the vif
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# plug event previously when we created the instance. Skip the
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# plug vifs during power on in this case
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self.power_on(instance,
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network_info=network_info,
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should_plug_vifs=False)
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except Exception:
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with excutils.save_and_reraise_exception():
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self.destroy(instance, network_info, block_device_info)
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@contextlib.contextmanager
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def wait_vif_plug_events(self, instance, network_info):
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timeout = CONF.vif_plugging_timeout
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try:
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# NOTE(claudiub): async calls to bind the neutron ports will be
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# done when network_info is being accessed.
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events = self._get_neutron_events(network_info)
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with self._virtapi.wait_for_instance_event(
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instance, events, deadline=timeout,
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error_callback=self._neutron_failed_callback):
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yield
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except etimeout.Timeout:
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# We never heard from Neutron
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LOG.warning('Timeout waiting for vif plugging callback for '
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'instance.', instance=instance)
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if CONF.vif_plugging_is_fatal:
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raise exception.VirtualInterfaceCreateException()
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except exception.PortBindingFailed:
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LOG.warning(
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"Neutron failed to bind a port to this host. Make sure that "
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"an L2 agent is alive and registered from this node (neutron "
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"Open vSwitch agent or Hyper-V agent), or make sure that "
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"neutron is configured with a mechanism driver that is able "
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"to bind ports to this host (OVN). If you are using neutron "
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"Hyper-V agent, make sure that networking-hyperv is installed "
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"on the neutron controller, and that the neutron-server was "
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"configured to use the 'hyperv' mechanism_driver.")
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raise
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def _neutron_failed_callback(self, event_name, instance):
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LOG.error('Neutron Reported failure on event %s',
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event_name, instance=instance)
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if CONF.vif_plugging_is_fatal:
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raise exception.VirtualInterfaceCreateException()
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def _get_neutron_events(self, network_info):
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# NOTE(danms): We need to collect any VIFs that are currently
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# down that we expect a down->up event for. Anything that is
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# already up will not undergo that transition, and for
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# anything that might be stale (cache-wise) assume it's
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# already up so we don't block on it.
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if CONF.vif_plugging_timeout:
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return [('network-vif-plugged', vif['id'])
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for vif in network_info if vif.get('active') is False]
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return []
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def create_instance(self, instance, network_info, root_device,
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block_device_info, vm_gen, image_meta):
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instance_name = instance.name
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instance_path = os.path.join(CONF.instances_path, instance_name)
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secure_boot_enabled = self._requires_secure_boot(instance, image_meta,
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vm_gen)
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memory_per_numa_node, cpus_per_numa_node = (
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self._get_instance_vnuma_config(instance, image_meta))
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if memory_per_numa_node:
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LOG.debug("Instance requires vNUMA topology. Host's NUMA spanning "
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"has to be disabled in order for the instance to "
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"benefit from it.", instance=instance)
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if CONF.hyperv.dynamic_memory_ratio > 1.0:
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LOG.warning(
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"Instance vNUMA topology requested, but dynamic memory "
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"ratio is higher than 1.0 in nova.conf. Ignoring dynamic "
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"memory ratio option.", instance=instance)
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dynamic_memory_ratio = 1.0
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vnuma_enabled = True
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else:
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dynamic_memory_ratio = CONF.hyperv.dynamic_memory_ratio
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vnuma_enabled = False
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if instance.pci_requests.requests:
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# NOTE(claudiub): if the instance requires PCI devices, its
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# host shutdown action MUST be shutdown.
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host_shutdown_action = os_win_const.HOST_SHUTDOWN_ACTION_SHUTDOWN
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else:
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host_shutdown_action = None
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self._vmutils.create_vm(instance_name,
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vnuma_enabled,
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vm_gen,
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instance_path,
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[instance.uuid])
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self._vmutils.update_vm(instance_name,
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instance.flavor.memory_mb,
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memory_per_numa_node,
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instance.flavor.vcpus,
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cpus_per_numa_node,
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CONF.hyperv.limit_cpu_features,
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dynamic_memory_ratio,
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host_shutdown_action=host_shutdown_action,
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chassis_asset_tag=version.product_string())
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self._configure_remotefx(instance, vm_gen)
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self._vmutils.create_scsi_controller(instance_name)
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self._attach_root_device(instance_name, root_device)
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self._attach_ephemerals(instance_name, block_device_info['ephemerals'])
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self._volumeops.attach_volumes(
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block_device_info['block_device_mapping'], instance_name)
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# For the moment, we use COM port 1 when getting the serial console
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# log as well as interactive sessions. In the future, the way in which
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# we consume instance serial ports may become configurable.
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#
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# Note that Hyper-V instances will always have 2 COM ports
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serial_ports = {
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constants.DEFAULT_SERIAL_CONSOLE_PORT:
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constants.SERIAL_PORT_TYPE_RW}
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self._create_vm_com_port_pipes(instance, serial_ports)
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for vif in network_info:
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LOG.debug('Creating nic for instance', instance=instance)
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self._vmutils.create_nic(instance_name,
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vif['id'],
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vif['address'])
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if CONF.hyperv.enable_instance_metrics_collection:
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self._metricsutils.enable_vm_metrics_collection(instance_name)
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self._set_instance_disk_qos_specs(instance)
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if secure_boot_enabled:
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certificate_required = self._requires_certificate(image_meta)
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self._vmutils.enable_secure_boot(
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instance.name, msft_ca_required=certificate_required)
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self._attach_pci_devices(instance)
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def _attach_pci_devices(self, instance):
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for pci_request in instance.pci_requests.requests:
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spec = pci_request.spec[0]
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for counter in range(pci_request.count):
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self._vmutils.add_pci_device(instance.name,
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spec['vendor_id'],
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spec['product_id'])
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def _get_instance_vnuma_config(self, instance, image_meta):
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"""Returns the appropriate NUMA configuration for Hyper-V instances,
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given the desired instance NUMA topology.
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:param instance: instance containing the flavor and it's extra_specs,
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where the NUMA topology is defined.
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:param image_meta: image's metadata, containing properties related to
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the instance's NUMA topology.
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:returns: memory amount and number of vCPUs per NUMA node or
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(None, None), if instance NUMA topology was not requested.
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:raises exception.InstanceUnacceptable:
|
|
If the given instance NUMA topology is not possible on Hyper-V, or
|
|
if CPU pinning is required.
|
|
"""
|
|
instance_topology = hardware.numa_get_constraints(instance.flavor,
|
|
image_meta)
|
|
if not instance_topology:
|
|
# instance NUMA topology was not requested.
|
|
return None, None
|
|
|
|
memory_per_numa_node = instance_topology.cells[0].memory
|
|
cpus_per_numa_node = len(instance_topology.cells[0].cpuset)
|
|
|
|
# TODO(stephenfin): We can avoid this check entirely if we rely on the
|
|
# 'supports_pcpus' driver capability (via a trait), but we need to drop
|
|
# support for the legacy 'vcpu_pin_set' path in the libvirt driver
|
|
# first
|
|
if instance_topology.cpu_policy not in (
|
|
None, fields.CPUAllocationPolicy.SHARED,
|
|
):
|
|
raise exception.InstanceUnacceptable(
|
|
reason=_("Hyper-V does not support CPU pinning."),
|
|
instance_id=instance.uuid)
|
|
|
|
# validate that the requested NUMA topology is not asymmetric.
|
|
# e.g.: it should be like: (X cpus, X cpus, Y cpus), where X == Y.
|
|
# same with memory.
|
|
for cell in instance_topology.cells:
|
|
if len(cell.cpuset) != cpus_per_numa_node:
|
|
reason = _("Hyper-V does not support NUMA topologies with "
|
|
"uneven number of processors. (%(a)s != %(b)s)") % {
|
|
'a': len(cell.cpuset), 'b': cpus_per_numa_node}
|
|
raise exception.InstanceUnacceptable(reason=reason,
|
|
instance_id=instance.uuid)
|
|
if cell.memory != memory_per_numa_node:
|
|
reason = _("Hyper-V does not support NUMA topologies with "
|
|
"uneven amounts of memory. (%(a)s != %(b)s)") % {
|
|
'a': cell.memory, 'b': memory_per_numa_node}
|
|
raise exception.InstanceUnacceptable(reason=reason,
|
|
instance_id=instance.uuid)
|
|
|
|
return memory_per_numa_node, cpus_per_numa_node
|
|
|
|
def _configure_remotefx(self, instance, vm_gen):
|
|
extra_specs = instance.flavor.extra_specs
|
|
remotefx_max_resolution = extra_specs.get(
|
|
constants.FLAVOR_ESPEC_REMOTEFX_RES)
|
|
if not remotefx_max_resolution:
|
|
# RemoteFX not required.
|
|
return
|
|
|
|
if not CONF.hyperv.enable_remotefx:
|
|
raise exception.InstanceUnacceptable(
|
|
_("enable_remotefx configuration option needs to be set to "
|
|
"True in order to use RemoteFX."))
|
|
|
|
if not self._hostutils.check_server_feature(
|
|
self._hostutils.FEATURE_RDS_VIRTUALIZATION):
|
|
raise exception.InstanceUnacceptable(
|
|
_("The RDS-Virtualization feature must be installed in order "
|
|
"to use RemoteFX."))
|
|
|
|
if not self._vmutils.vm_gen_supports_remotefx(vm_gen):
|
|
raise exception.InstanceUnacceptable(
|
|
_("RemoteFX is not supported on generation %s virtual "
|
|
"machines on this version of Windows.") % vm_gen)
|
|
|
|
instance_name = instance.name
|
|
LOG.debug('Configuring RemoteFX for instance: %s', instance_name)
|
|
|
|
remotefx_monitor_count = int(extra_specs.get(
|
|
constants.FLAVOR_ESPEC_REMOTEFX_MONITORS) or 1)
|
|
remotefx_vram = extra_specs.get(
|
|
constants.FLAVOR_ESPEC_REMOTEFX_VRAM)
|
|
vram_bytes = int(remotefx_vram) * units.Mi if remotefx_vram else None
|
|
|
|
self._vmutils.enable_remotefx_video_adapter(
|
|
instance_name,
|
|
remotefx_monitor_count,
|
|
remotefx_max_resolution,
|
|
vram_bytes)
|
|
|
|
def _attach_root_device(self, instance_name, root_dev_info):
|
|
if root_dev_info['type'] == constants.VOLUME:
|
|
self._volumeops.attach_volume(root_dev_info['connection_info'],
|
|
instance_name,
|
|
disk_bus=root_dev_info['disk_bus'])
|
|
else:
|
|
self._attach_drive(instance_name, root_dev_info['path'],
|
|
root_dev_info['drive_addr'],
|
|
root_dev_info['ctrl_disk_addr'],
|
|
root_dev_info['disk_bus'],
|
|
root_dev_info['type'])
|
|
|
|
def _attach_ephemerals(self, instance_name, ephemerals):
|
|
for eph in ephemerals:
|
|
# if an ephemeral doesn't have a path, it might have been removed
|
|
# during resize.
|
|
if eph.get('path'):
|
|
self._attach_drive(
|
|
instance_name, eph['path'], eph['drive_addr'],
|
|
eph['ctrl_disk_addr'], eph['disk_bus'],
|
|
constants.BDI_DEVICE_TYPE_TO_DRIVE_TYPE[
|
|
eph['device_type']])
|
|
|
|
def _attach_drive(self, instance_name, path, drive_addr, ctrl_disk_addr,
|
|
controller_type, drive_type=constants.DISK):
|
|
if controller_type == constants.CTRL_TYPE_SCSI:
|
|
self._vmutils.attach_scsi_drive(instance_name, path, drive_type)
|
|
else:
|
|
self._vmutils.attach_ide_drive(instance_name, path, drive_addr,
|
|
ctrl_disk_addr, drive_type)
|
|
|
|
def get_image_vm_generation(self, instance_id, image_meta):
|
|
default_vm_gen = self._hostutils.get_default_vm_generation()
|
|
image_prop_vm = image_meta.properties.get('hw_machine_type',
|
|
default_vm_gen)
|
|
if image_prop_vm not in self._hostutils.get_supported_vm_types():
|
|
reason = _('Requested VM Generation %s is not supported on '
|
|
'this OS.') % image_prop_vm
|
|
raise exception.InstanceUnacceptable(instance_id=instance_id,
|
|
reason=reason)
|
|
|
|
return VM_GENERATIONS[image_prop_vm]
|
|
|
|
def check_vm_image_type(self, instance_id, vm_gen, root_vhd_path):
|
|
if (vm_gen != constants.VM_GEN_1 and root_vhd_path and
|
|
self._vhdutils.get_vhd_format(
|
|
root_vhd_path) == constants.DISK_FORMAT_VHD):
|
|
reason = _('Requested VM Generation %s, but provided VHD '
|
|
'instead of VHDX.') % vm_gen
|
|
raise exception.InstanceUnacceptable(instance_id=instance_id,
|
|
reason=reason)
|
|
|
|
def _requires_certificate(self, image_meta):
|
|
os_type = image_meta.properties.get('os_type')
|
|
if os_type == fields.OSType.WINDOWS:
|
|
return False
|
|
return True
|
|
|
|
def _requires_secure_boot(self, instance, image_meta, vm_gen):
|
|
"""Checks whether the given instance requires Secure Boot.
|
|
|
|
Secure Boot feature will be enabled by setting the "os_secure_boot"
|
|
image property or the "os:secure_boot" flavor extra spec to required.
|
|
|
|
:raises exception.InstanceUnacceptable: if the given image_meta has
|
|
no os_type property set, or if the image property value and the
|
|
flavor extra spec value are conflicting, or if Secure Boot is
|
|
required, but the instance's VM generation is 1.
|
|
"""
|
|
img_secure_boot = image_meta.properties.get('os_secure_boot')
|
|
flavor_secure_boot = instance.flavor.extra_specs.get(
|
|
constants.FLAVOR_SPEC_SECURE_BOOT)
|
|
|
|
requires_sb = False
|
|
conflicting_values = False
|
|
|
|
if flavor_secure_boot == fields.SecureBoot.REQUIRED:
|
|
requires_sb = True
|
|
if img_secure_boot == fields.SecureBoot.DISABLED:
|
|
conflicting_values = True
|
|
elif img_secure_boot == fields.SecureBoot.REQUIRED:
|
|
requires_sb = True
|
|
if flavor_secure_boot == fields.SecureBoot.DISABLED:
|
|
conflicting_values = True
|
|
|
|
if conflicting_values:
|
|
reason = _(
|
|
"Conflicting image metadata property and flavor extra_specs "
|
|
"values: os_secure_boot (%(image_secure_boot)s) / "
|
|
"os:secure_boot (%(flavor_secure_boot)s)") % {
|
|
'image_secure_boot': img_secure_boot,
|
|
'flavor_secure_boot': flavor_secure_boot}
|
|
raise exception.InstanceUnacceptable(instance_id=instance.uuid,
|
|
reason=reason)
|
|
|
|
if requires_sb:
|
|
if vm_gen != constants.VM_GEN_2:
|
|
reason = _('Secure boot requires generation 2 VM.')
|
|
raise exception.InstanceUnacceptable(instance_id=instance.uuid,
|
|
reason=reason)
|
|
|
|
os_type = image_meta.properties.get('os_type')
|
|
if not os_type:
|
|
reason = _('For secure boot, os_type must be specified in '
|
|
'image properties.')
|
|
raise exception.InstanceUnacceptable(instance_id=instance.uuid,
|
|
reason=reason)
|
|
return requires_sb
|
|
|
|
def _create_config_drive(self, context, instance, injected_files,
|
|
admin_password, network_info, rescue=False):
|
|
if CONF.config_drive_format != 'iso9660':
|
|
raise exception.ConfigDriveUnsupportedFormat(
|
|
format=CONF.config_drive_format)
|
|
|
|
LOG.info('Using config drive for instance', instance=instance)
|
|
|
|
extra_md = {}
|
|
if admin_password and CONF.hyperv.config_drive_inject_password:
|
|
extra_md['admin_pass'] = admin_password
|
|
|
|
inst_md = instance_metadata.InstanceMetadata(
|
|
instance, content=injected_files, extra_md=extra_md,
|
|
network_info=network_info)
|
|
|
|
configdrive_path_iso = self._pathutils.get_configdrive_path(
|
|
instance.name, constants.DVD_FORMAT, rescue=rescue)
|
|
LOG.info('Creating config drive at %(path)s',
|
|
{'path': configdrive_path_iso}, instance=instance)
|
|
|
|
with configdrive.ConfigDriveBuilder(instance_md=inst_md) as cdb:
|
|
try:
|
|
cdb.make_drive(configdrive_path_iso)
|
|
except processutils.ProcessExecutionError as e:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.error('Creating config drive failed with '
|
|
'error: %s', e, instance=instance)
|
|
|
|
if not CONF.hyperv.config_drive_cdrom:
|
|
configdrive_path = self._pathutils.get_configdrive_path(
|
|
instance.name, constants.DISK_FORMAT_VHD, rescue=rescue)
|
|
processutils.execute(CONF.hyperv.qemu_img_cmd,
|
|
'convert',
|
|
'-f',
|
|
'raw',
|
|
'-O',
|
|
'vpc',
|
|
configdrive_path_iso,
|
|
configdrive_path,
|
|
attempts=1)
|
|
self._pathutils.remove(configdrive_path_iso)
|
|
else:
|
|
configdrive_path = configdrive_path_iso
|
|
|
|
return configdrive_path
|
|
|
|
def attach_config_drive(self, instance, configdrive_path, vm_gen):
|
|
configdrive_ext = configdrive_path[(configdrive_path.rfind('.') + 1):]
|
|
# Do the attach here and if there is a certain file format that isn't
|
|
# supported in constants.DISK_FORMAT_MAP then bomb out.
|
|
try:
|
|
drive_type = constants.DISK_FORMAT_MAP[configdrive_ext]
|
|
controller_type = VM_GENERATIONS_CONTROLLER_TYPES[vm_gen]
|
|
self._attach_drive(instance.name, configdrive_path, 1, 0,
|
|
controller_type, drive_type)
|
|
except KeyError:
|
|
raise exception.InvalidDiskFormat(disk_format=configdrive_ext)
|
|
|
|
def _detach_config_drive(self, instance_name, rescue=False, delete=False):
|
|
configdrive_path = self._pathutils.lookup_configdrive_path(
|
|
instance_name, rescue=rescue)
|
|
|
|
if configdrive_path:
|
|
self._vmutils.detach_vm_disk(instance_name,
|
|
configdrive_path,
|
|
is_physical=False)
|
|
if delete:
|
|
self._pathutils.remove(configdrive_path)
|
|
|
|
@serialconsoleops.instance_synchronized
|
|
def _delete_disk_files(self, instance_name):
|
|
# We want to avoid the situation in which serial console workers
|
|
# are started while we perform this operation, preventing us from
|
|
# deleting the instance log files (bug #1556189). This can happen
|
|
# due to delayed instance lifecycle events.
|
|
#
|
|
# The unsynchronized method is being used to avoid a deadlock.
|
|
self._serial_console_ops.stop_console_handler_unsync(instance_name)
|
|
self._pathutils.get_instance_dir(instance_name,
|
|
create_dir=False,
|
|
remove_dir=True)
|
|
|
|
def destroy(self, instance, network_info, block_device_info,
|
|
destroy_disks=True):
|
|
instance_name = instance.name
|
|
LOG.info("Got request to destroy instance", instance=instance)
|
|
try:
|
|
if self._vmutils.vm_exists(instance_name):
|
|
|
|
# Stop the VM first.
|
|
self._vmutils.stop_vm_jobs(instance_name)
|
|
self.power_off(instance)
|
|
self._vmutils.destroy_vm(instance_name)
|
|
elif self._migrutils.planned_vm_exists(instance_name):
|
|
self._migrutils.destroy_existing_planned_vm(instance_name)
|
|
else:
|
|
LOG.debug("Instance not found", instance=instance)
|
|
|
|
# NOTE(claudiub): The vifs should be unplugged and the volumes
|
|
# should be disconnected even if the VM doesn't exist anymore,
|
|
# so they are not leaked.
|
|
self.unplug_vifs(instance, network_info)
|
|
self._volumeops.disconnect_volumes(block_device_info, force=True)
|
|
|
|
if destroy_disks:
|
|
self._delete_disk_files(instance_name)
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.exception('Failed to destroy instance: %s', instance_name)
|
|
|
|
def reboot(self, instance, network_info, reboot_type):
|
|
"""Reboot the specified instance."""
|
|
LOG.debug("Rebooting instance", instance=instance)
|
|
|
|
if reboot_type == REBOOT_TYPE_SOFT:
|
|
if self._soft_shutdown(instance):
|
|
self.power_on(instance, network_info=network_info)
|
|
return
|
|
|
|
self._set_vm_state(instance,
|
|
os_win_const.HYPERV_VM_STATE_REBOOT)
|
|
|
|
def _soft_shutdown(self, instance,
|
|
timeout=CONF.hyperv.wait_soft_reboot_seconds,
|
|
retry_interval=SHUTDOWN_TIME_INCREMENT):
|
|
"""Perform a soft shutdown on the VM.
|
|
|
|
:return: True if the instance was shutdown within time limit,
|
|
False otherwise.
|
|
"""
|
|
LOG.debug("Performing Soft shutdown on instance", instance=instance)
|
|
|
|
while timeout > 0:
|
|
# Perform a soft shutdown on the instance.
|
|
# Wait maximum timeout for the instance to be shutdown.
|
|
# If it was not shutdown, retry until it succeeds or a maximum of
|
|
# time waited is equal to timeout.
|
|
wait_time = min(retry_interval, timeout)
|
|
try:
|
|
LOG.debug("Soft shutdown instance, timeout remaining: %d",
|
|
timeout, instance=instance)
|
|
self._vmutils.soft_shutdown_vm(instance.name)
|
|
if self._wait_for_power_off(instance.name, wait_time):
|
|
LOG.info("Soft shutdown succeeded.",
|
|
instance=instance)
|
|
return True
|
|
except os_win_exc.HyperVException as e:
|
|
# Exception is raised when trying to shutdown the instance
|
|
# while it is still booting.
|
|
LOG.debug("Soft shutdown failed: %s", e, instance=instance)
|
|
time.sleep(wait_time)
|
|
|
|
timeout -= retry_interval
|
|
|
|
LOG.warning("Timed out while waiting for soft shutdown.",
|
|
instance=instance)
|
|
return False
|
|
|
|
def pause(self, instance):
|
|
"""Pause VM instance."""
|
|
LOG.debug("Pause instance", instance=instance)
|
|
self._set_vm_state(instance,
|
|
os_win_const.HYPERV_VM_STATE_PAUSED)
|
|
|
|
def unpause(self, instance):
|
|
"""Unpause paused VM instance."""
|
|
LOG.debug("Unpause instance", instance=instance)
|
|
self._set_vm_state(instance,
|
|
os_win_const.HYPERV_VM_STATE_ENABLED)
|
|
|
|
def suspend(self, instance):
|
|
"""Suspend the specified instance."""
|
|
LOG.debug("Suspend instance", instance=instance)
|
|
self._set_vm_state(instance,
|
|
os_win_const.HYPERV_VM_STATE_SUSPENDED)
|
|
|
|
def resume(self, instance):
|
|
"""Resume the suspended VM instance."""
|
|
LOG.debug("Resume instance", instance=instance)
|
|
self._set_vm_state(instance,
|
|
os_win_const.HYPERV_VM_STATE_ENABLED)
|
|
|
|
def power_off(self, instance, timeout=0, retry_interval=0):
|
|
"""Power off the specified instance."""
|
|
LOG.debug("Power off instance", instance=instance)
|
|
|
|
# We must make sure that the console log workers are stopped,
|
|
# otherwise we won't be able to delete or move the VM log files.
|
|
self._serial_console_ops.stop_console_handler(instance.name)
|
|
|
|
if retry_interval <= 0:
|
|
retry_interval = SHUTDOWN_TIME_INCREMENT
|
|
|
|
try:
|
|
if timeout and self._soft_shutdown(instance,
|
|
timeout,
|
|
retry_interval):
|
|
return
|
|
|
|
self._set_vm_state(instance,
|
|
os_win_const.HYPERV_VM_STATE_DISABLED)
|
|
except os_win_exc.HyperVVMNotFoundException:
|
|
# The manager can call the stop API after receiving instance
|
|
# power off events. If this is triggered when the instance
|
|
# is being deleted, it might attempt to power off an unexisting
|
|
# instance. We'll just pass in this case.
|
|
LOG.debug("Instance not found. Skipping power off",
|
|
instance=instance)
|
|
|
|
def power_on(self, instance, block_device_info=None, network_info=None,
|
|
should_plug_vifs=True):
|
|
"""Power on the specified instance."""
|
|
LOG.debug("Power on instance", instance=instance)
|
|
|
|
if block_device_info:
|
|
self._volumeops.fix_instance_volume_disk_paths(instance.name,
|
|
block_device_info)
|
|
|
|
if should_plug_vifs:
|
|
self.plug_vifs(instance, network_info)
|
|
self._set_vm_state(instance, os_win_const.HYPERV_VM_STATE_ENABLED)
|
|
|
|
def _set_vm_state(self, instance, req_state):
|
|
instance_name = instance.name
|
|
|
|
try:
|
|
self._vmutils.set_vm_state(instance_name, req_state)
|
|
|
|
LOG.debug("Successfully changed state of VM %(instance_name)s"
|
|
" to: %(req_state)s", {'instance_name': instance_name,
|
|
'req_state': req_state})
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.error("Failed to change vm state of %(instance_name)s"
|
|
" to %(req_state)s",
|
|
{'instance_name': instance_name,
|
|
'req_state': req_state})
|
|
|
|
def _get_vm_state(self, instance_name):
|
|
summary_info = self._vmutils.get_vm_summary_info(instance_name)
|
|
return summary_info['EnabledState']
|
|
|
|
def _wait_for_power_off(self, instance_name, time_limit):
|
|
"""Waiting for a VM to be in a disabled state.
|
|
|
|
:return: True if the instance is shutdown within time_limit,
|
|
False otherwise.
|
|
"""
|
|
|
|
desired_vm_states = [os_win_const.HYPERV_VM_STATE_DISABLED]
|
|
|
|
def _check_vm_status(instance_name):
|
|
if self._get_vm_state(instance_name) in desired_vm_states:
|
|
raise loopingcall.LoopingCallDone()
|
|
|
|
periodic_call = loopingcall.FixedIntervalLoopingCall(_check_vm_status,
|
|
instance_name)
|
|
|
|
try:
|
|
# add a timeout to the periodic call.
|
|
periodic_call.start(interval=SHUTDOWN_TIME_INCREMENT)
|
|
etimeout.with_timeout(time_limit, periodic_call.wait)
|
|
except etimeout.Timeout:
|
|
# VM did not shutdown in the expected time_limit.
|
|
return False
|
|
finally:
|
|
# stop the periodic call, in case of exceptions or Timeout.
|
|
periodic_call.stop()
|
|
|
|
return True
|
|
|
|
def resume_state_on_host_boot(self, context, instance, network_info,
|
|
block_device_info=None):
|
|
"""Resume guest state when a host is booted."""
|
|
self.power_on(instance, block_device_info, network_info)
|
|
|
|
def _create_vm_com_port_pipes(self, instance, serial_ports):
|
|
for port_number, port_type in serial_ports.items():
|
|
pipe_path = r'\\.\pipe\%s_%s' % (instance.uuid, port_type)
|
|
self._vmutils.set_vm_serial_port_connection(
|
|
instance.name, port_number, pipe_path)
|
|
|
|
def copy_vm_dvd_disks(self, vm_name, dest_host):
|
|
dvd_disk_paths = self._vmutils.get_vm_dvd_disk_paths(vm_name)
|
|
dest_path = self._pathutils.get_instance_dir(
|
|
vm_name, remote_server=dest_host)
|
|
for path in dvd_disk_paths:
|
|
self._pathutils.copyfile(path, dest_path)
|
|
|
|
def plug_vifs(self, instance, network_info):
|
|
if network_info:
|
|
for vif in network_info:
|
|
self._vif_driver.plug(instance, vif)
|
|
|
|
def unplug_vifs(self, instance, network_info):
|
|
if network_info:
|
|
for vif in network_info:
|
|
self._vif_driver.unplug(instance, vif)
|
|
|
|
def _check_hotplug_available(self, instance):
|
|
"""Check whether attaching an interface is possible for the given
|
|
instance.
|
|
|
|
:returns: True if attaching / detaching interfaces is possible for the
|
|
given instance.
|
|
"""
|
|
vm_state = self._get_vm_state(instance.name)
|
|
if vm_state == os_win_const.HYPERV_VM_STATE_DISABLED:
|
|
# can attach / detach interface to stopped VMs.
|
|
return True
|
|
|
|
if not self._hostutils.check_min_windows_version(10, 0):
|
|
# TODO(claudiub): add set log level to error after string freeze.
|
|
LOG.debug("vNIC hot plugging is supported only in newer "
|
|
"versions than Windows Hyper-V / Server 2012 R2.")
|
|
return False
|
|
|
|
if (self._vmutils.get_vm_generation(instance.name) ==
|
|
constants.VM_GEN_1):
|
|
# TODO(claudiub): add set log level to error after string freeze.
|
|
LOG.debug("Cannot hot plug vNIC to a first generation VM.",
|
|
instance=instance)
|
|
return False
|
|
|
|
return True
|
|
|
|
def attach_interface(self, instance, vif):
|
|
if not self._check_hotplug_available(instance):
|
|
raise exception.InterfaceAttachFailed(instance_uuid=instance.uuid)
|
|
|
|
LOG.debug('Attaching vif: %s', vif['id'], instance=instance)
|
|
self._vmutils.create_nic(instance.name, vif['id'], vif['address'])
|
|
self._vif_driver.plug(instance, vif)
|
|
|
|
def detach_interface(self, instance, vif):
|
|
try:
|
|
if not self._check_hotplug_available(instance):
|
|
raise exception.InterfaceDetachFailed(
|
|
instance_uuid=instance.uuid)
|
|
|
|
LOG.debug('Detaching vif: %s', vif['id'], instance=instance)
|
|
self._vif_driver.unplug(instance, vif)
|
|
self._vmutils.destroy_nic(instance.name, vif['id'])
|
|
except os_win_exc.HyperVVMNotFoundException:
|
|
# TODO(claudiub): add set log level to error after string freeze.
|
|
LOG.debug("Instance not found during detach interface. It "
|
|
"might have been destroyed beforehand.",
|
|
instance=instance)
|
|
raise exception.InterfaceDetachFailed(instance_uuid=instance.uuid)
|
|
|
|
def rescue_instance(self, context, instance, network_info, image_meta,
|
|
rescue_password):
|
|
try:
|
|
self._rescue_instance(context, instance, network_info,
|
|
image_meta, rescue_password)
|
|
except Exception as exc:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.error("Instance rescue failed. Exception: %(exc)s. "
|
|
"Attempting to unrescue the instance.",
|
|
{'exc': exc}, instance=instance)
|
|
self.unrescue_instance(instance)
|
|
|
|
def _rescue_instance(self, context, instance, network_info, image_meta,
|
|
rescue_password):
|
|
rescue_image_id = image_meta.id or instance.image_ref
|
|
rescue_vhd_path = self._create_root_vhd(
|
|
context, instance, rescue_image_id=rescue_image_id)
|
|
|
|
rescue_vm_gen = self.get_image_vm_generation(instance.uuid,
|
|
image_meta)
|
|
vm_gen = self._vmutils.get_vm_generation(instance.name)
|
|
if rescue_vm_gen != vm_gen:
|
|
err_msg = _('The requested rescue image requires a different VM '
|
|
'generation than the actual rescued instance. '
|
|
'Rescue image VM generation: %(rescue_vm_gen)s. '
|
|
'Rescued instance VM generation: %(vm_gen)s.') % dict(
|
|
rescue_vm_gen=rescue_vm_gen,
|
|
vm_gen=vm_gen)
|
|
raise exception.ImageUnacceptable(reason=err_msg,
|
|
image_id=rescue_image_id)
|
|
|
|
root_vhd_path = self._pathutils.lookup_root_vhd_path(instance.name)
|
|
if not root_vhd_path:
|
|
err_msg = _('Instance root disk image could not be found. '
|
|
'Rescuing instances booted from volume is '
|
|
'not supported.')
|
|
raise exception.InstanceNotRescuable(reason=err_msg,
|
|
instance_id=instance.uuid)
|
|
|
|
controller_type = VM_GENERATIONS_CONTROLLER_TYPES[vm_gen]
|
|
|
|
self._vmutils.detach_vm_disk(instance.name, root_vhd_path,
|
|
is_physical=False)
|
|
self._attach_drive(instance.name, rescue_vhd_path, 0,
|
|
self._ROOT_DISK_CTRL_ADDR, controller_type)
|
|
self._vmutils.attach_scsi_drive(instance.name, root_vhd_path,
|
|
drive_type=constants.DISK)
|
|
|
|
if configdrive.required_by(instance):
|
|
self._detach_config_drive(instance.name)
|
|
rescue_configdrive_path = self._create_config_drive(
|
|
context,
|
|
instance,
|
|
injected_files=None,
|
|
admin_password=rescue_password,
|
|
network_info=network_info,
|
|
rescue=True)
|
|
self.attach_config_drive(instance, rescue_configdrive_path,
|
|
vm_gen)
|
|
|
|
self.power_on(instance)
|
|
|
|
def unrescue_instance(self, instance):
|
|
self.power_off(instance)
|
|
|
|
root_vhd_path = self._pathutils.lookup_root_vhd_path(instance.name)
|
|
rescue_vhd_path = self._pathutils.lookup_root_vhd_path(instance.name,
|
|
rescue=True)
|
|
|
|
if (instance.vm_state == vm_states.RESCUED and
|
|
not (rescue_vhd_path and root_vhd_path)):
|
|
err_msg = _('Missing instance root and/or rescue image. '
|
|
'The instance cannot be unrescued.')
|
|
raise exception.InstanceNotRescuable(reason=err_msg,
|
|
instance_id=instance.uuid)
|
|
|
|
vm_gen = self._vmutils.get_vm_generation(instance.name)
|
|
controller_type = VM_GENERATIONS_CONTROLLER_TYPES[vm_gen]
|
|
|
|
self._vmutils.detach_vm_disk(instance.name, root_vhd_path,
|
|
is_physical=False)
|
|
if rescue_vhd_path:
|
|
self._vmutils.detach_vm_disk(instance.name, rescue_vhd_path,
|
|
is_physical=False)
|
|
fileutils.delete_if_exists(rescue_vhd_path)
|
|
self._attach_drive(instance.name, root_vhd_path, 0,
|
|
self._ROOT_DISK_CTRL_ADDR, controller_type)
|
|
|
|
self._detach_config_drive(instance.name, rescue=True, delete=True)
|
|
|
|
# Reattach the configdrive, if exists and not already attached.
|
|
configdrive_path = self._pathutils.lookup_configdrive_path(
|
|
instance.name)
|
|
if configdrive_path and not self._vmutils.is_disk_attached(
|
|
configdrive_path, is_physical=False):
|
|
self.attach_config_drive(instance, configdrive_path, vm_gen)
|
|
|
|
self.power_on(instance)
|
|
|
|
def _set_instance_disk_qos_specs(self, instance):
|
|
quota_specs = self._get_scoped_flavor_extra_specs(instance, 'quota')
|
|
|
|
disk_total_bytes_sec = int(
|
|
quota_specs.get('disk_total_bytes_sec') or 0)
|
|
disk_total_iops_sec = int(
|
|
quota_specs.get('disk_total_iops_sec') or
|
|
self._volumeops.bytes_per_sec_to_iops(disk_total_bytes_sec))
|
|
|
|
if disk_total_iops_sec:
|
|
local_disks = self._get_instance_local_disks(instance.name)
|
|
for disk_path in local_disks:
|
|
self._vmutils.set_disk_qos_specs(disk_path,
|
|
disk_total_iops_sec)
|
|
|
|
def _get_instance_local_disks(self, instance_name):
|
|
instance_path = self._pathutils.get_instance_dir(instance_name)
|
|
instance_disks = self._vmutils.get_vm_storage_paths(instance_name)[0]
|
|
local_disks = [disk_path for disk_path in instance_disks
|
|
if instance_path in disk_path]
|
|
return local_disks
|
|
|
|
def _get_scoped_flavor_extra_specs(self, instance, scope):
|
|
extra_specs = instance.flavor.extra_specs or {}
|
|
filtered_specs = {}
|
|
for spec, value in extra_specs.items():
|
|
if ':' in spec:
|
|
_scope, key = spec.split(':')
|
|
if _scope == scope:
|
|
filtered_specs[key] = value
|
|
return filtered_specs
|