ec9d5e375e
ImageCacheManager deletes base image while image backend is copying image to the instance path leading instance to go in the error state. Acquired lock before removing image from cache. If libvirt is copying image to the instance path, image cache manager won't be able to remove it until libvirt finishes copying image completely. Closes-Bug: 1256838 Closes-Bug: 1470437 Co-Authored-By: Michael Still <mikal@stillhq.com> Depends-On: I337ce28e2fc516c91bec61ca3639ebff0029ad49 Change-Id: I376cc951922c338669fdf3f83da83e0d3cea1532
173 lines
3.5 KiB
Python
173 lines
3.5 KiB
Python
# Copyright (c) 2011 OpenStack Foundation
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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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import os
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from six.moves import StringIO
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from nova.virt.libvirt import utils as libvirt_utils
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files = {'console.log': True}
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disk_sizes = {}
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disk_backing_files = {}
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disk_type = "qcow2"
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RESIZE_SNAPSHOT_NAME = libvirt_utils.RESIZE_SNAPSHOT_NAME
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def create_image(disk_format, path, size):
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pass
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def create_cow_image(backing_file, path):
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pass
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def get_disk_size(path, format=None):
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return 0
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def get_disk_backing_file(path, format=None):
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return disk_backing_files.get(path, None)
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def get_disk_type_from_path(path):
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if disk_type in ('raw', 'qcow2'):
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return None
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return disk_type
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def copy_image(src, dest):
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pass
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def resize2fs(path):
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pass
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def create_lvm_image(vg, lv, size, sparse=False):
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pass
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def volume_group_free_space(vg):
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pass
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def remove_logical_volumes(*paths):
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pass
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def write_to_file(path, contents, umask=None):
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pass
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def chown(path, owner):
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pass
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def update_mtime(path):
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pass
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def extract_snapshot(disk_path, source_fmt, out_path, dest_fmt):
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files[out_path] = ''
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class File(object):
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def __init__(self, path, mode=None):
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if path in files:
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self.fp = StringIO(files[path])
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else:
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self.fp = StringIO(files[os.path.split(path)[-1]])
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def __enter__(self):
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return self.fp
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def __exit__(self, *args):
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return
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def close(self, *args, **kwargs):
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self.fp.close()
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def file_open(path, mode=None):
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return File(path, mode)
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def find_disk(virt_dom):
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if disk_type == 'lvm':
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return ("/dev/nova-vg/lv", "raw")
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elif disk_type in ['raw', 'qcow2']:
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return ("filename", disk_type)
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else:
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return ("unknown_type_disk", None)
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def load_file(path):
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if os.path.exists(path):
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with open(path, 'r') as fp:
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return fp.read()
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else:
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return ''
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def logical_volume_info(path):
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return {}
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def file_delete(path):
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return True
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def get_fs_info(path):
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return {'total': 128 * (1024 ** 3),
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'used': 44 * (1024 ** 3),
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'free': 84 * (1024 ** 3)}
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def fetch_image(context, target, image_id, user_id, project_id, max_size=0):
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pass
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def fetch_raw_image(context, target, image_id, user_id, project_id,
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max_size=0):
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pass
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def get_instance_path(instance, forceold=False, relative=False):
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return libvirt_utils.get_instance_path(instance, forceold=forceold,
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relative=relative)
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def get_instance_path_at_destination(instance, migrate_data=None):
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return libvirt_utils.get_instance_path_at_destination(instance,
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migrate_data)
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def pick_disk_driver_name(hypervisor_version, is_block_dev=False):
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return "qemu"
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def is_valid_hostname(name):
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return True
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def chown_for_id_maps(path, id_maps):
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pass
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def get_arch(image_meta):
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return libvirt_utils.get_arch(image_meta)
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