824 lines
37 KiB
Python
824 lines
37 KiB
Python
# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
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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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Backup manager manages volume backups.
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Volume Backups are full copies of persistent volumes stored in a backup
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store e.g. an object store or any other backup store if and when support is
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added. They are usable without the original object being available. A
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volume backup can be restored to the original volume it was created from or
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any other available volume with a minimum size of the original volume.
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Volume backups can be created, restored, deleted and listed.
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**Related Flags**
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:backup_topic: What :mod:`rpc` topic to listen to (default:
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`cinder-backup`).
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:backup_manager: The module name of a class derived from
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:class:`manager.Manager` (default:
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:class:`cinder.backup.manager.Manager`).
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"""
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from oslo_config import cfg
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from oslo_log import log as logging
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import oslo_messaging as messaging
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from oslo_utils import excutils
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from oslo_utils import importutils
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import six
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from cinder.backup import driver
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from cinder.backup import rpcapi as backup_rpcapi
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from cinder import context
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from cinder import exception
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from cinder.i18n import _, _LE, _LI, _LW
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from cinder import manager
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from cinder import objects
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from cinder import quota
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from cinder import rpc
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from cinder import utils
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from cinder.volume import utils as volume_utils
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LOG = logging.getLogger(__name__)
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backup_manager_opts = [
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cfg.StrOpt('backup_driver',
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default='cinder.backup.drivers.swift',
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help='Driver to use for backups.',),
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cfg.BoolOpt('backup_service_inithost_offload',
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default=False,
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help='Offload pending backup delete during '
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'backup service startup.',),
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]
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# This map doesn't need to be extended in the future since it's only
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# for old backup services
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mapper = {'cinder.backup.services.swift': 'cinder.backup.drivers.swift',
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'cinder.backup.services.ceph': 'cinder.backup.drivers.ceph'}
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CONF = cfg.CONF
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CONF.register_opts(backup_manager_opts)
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QUOTAS = quota.QUOTAS
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class BackupManager(manager.SchedulerDependentManager):
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"""Manages backup of block storage devices."""
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RPC_API_VERSION = '1.2'
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target = messaging.Target(version=RPC_API_VERSION)
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def __init__(self, service_name=None, *args, **kwargs):
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self.service = importutils.import_module(self.driver_name)
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self.az = CONF.storage_availability_zone
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self.volume_managers = {}
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self._setup_volume_drivers()
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self.backup_rpcapi = backup_rpcapi.BackupAPI()
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super(BackupManager, self).__init__(service_name='backup',
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*args, **kwargs)
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@property
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def driver_name(self):
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"""This function maps old backup services to backup drivers."""
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return self._map_service_to_driver(CONF.backup_driver)
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def _map_service_to_driver(self, service):
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"""Maps services to drivers."""
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if service in mapper:
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return mapper[service]
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return service
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@property
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def driver(self):
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return self._get_driver()
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def _get_volume_backend(self, host=None, allow_null_host=False):
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if host is None:
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if not allow_null_host:
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msg = _("NULL host not allowed for volume backend lookup.")
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raise exception.BackupFailedToGetVolumeBackend(msg)
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else:
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LOG.debug("Checking hostname '%s' for backend info.", host)
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part = host.partition('@')
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if (part[1] == '@') and (part[2] != ''):
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backend = part[2]
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LOG.debug("Got backend '%s'.", backend)
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return backend
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LOG.info(_LI("Backend not found in hostname (%s) so using default."),
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host)
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if 'default' not in self.volume_managers:
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# For multi-backend we just pick the top of the list.
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return self.volume_managers.keys()[0]
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return 'default'
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def _get_manager(self, backend):
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LOG.debug("Manager requested for volume_backend '%s'.",
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backend)
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if backend is None:
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LOG.debug("Fetching default backend.")
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backend = self._get_volume_backend(allow_null_host=True)
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if backend not in self.volume_managers:
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msg = (_("Volume manager for backend '%s' does not exist.") %
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(backend))
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raise exception.BackupFailedToGetVolumeBackend(msg)
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return self.volume_managers[backend]
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def _get_driver(self, backend=None):
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LOG.debug("Driver requested for volume_backend '%s'.",
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backend)
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if backend is None:
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LOG.debug("Fetching default backend.")
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backend = self._get_volume_backend(allow_null_host=True)
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mgr = self._get_manager(backend)
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mgr.driver.db = self.db
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return mgr.driver
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def _setup_volume_drivers(self):
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if CONF.enabled_backends:
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for backend in CONF.enabled_backends:
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host = "%s@%s" % (CONF.host, backend)
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mgr = importutils.import_object(CONF.volume_manager,
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host=host,
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service_name=backend)
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config = mgr.configuration
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backend_name = config.safe_get('volume_backend_name')
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LOG.debug("Registering backend %(backend)s (host=%(host)s "
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"backend_name=%(backend_name)s).",
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{'backend': backend, 'host': host,
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'backend_name': backend_name})
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self.volume_managers[backend] = mgr
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else:
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default = importutils.import_object(CONF.volume_manager)
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LOG.debug("Registering default backend %s.", default)
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self.volume_managers['default'] = default
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def _init_volume_driver(self, ctxt, driver):
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LOG.info(_LI("Starting volume driver %(driver_name)s (%(version)s)."),
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{'driver_name': driver.__class__.__name__,
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'version': driver.get_version()})
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try:
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driver.do_setup(ctxt)
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driver.check_for_setup_error()
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except Exception:
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LOG.exception(_LE("Error encountered during initialization of "
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"driver: %(name)s."),
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{'name': driver.__class__.__name__})
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# we don't want to continue since we failed
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# to initialize the driver correctly.
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return
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driver.set_initialized()
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def _update_backup_error(self, backup, context, err):
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backup.status = 'error'
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backup.fail_reason = err
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backup.save()
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def init_host(self):
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"""Run initialization needed for a standalone service."""
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ctxt = context.get_admin_context()
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for mgr in self.volume_managers.values():
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self._init_volume_driver(ctxt, mgr.driver)
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LOG.info(_LI("Cleaning up incomplete backup operations."))
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volumes = self.db.volume_get_all_by_host(ctxt, self.host)
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for volume in volumes:
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volume_host = volume_utils.extract_host(volume['host'], 'backend')
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backend = self._get_volume_backend(host=volume_host)
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mgr = self._get_manager(backend)
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if volume['status'] == 'backing-up':
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self._detach_all_attachments(ctxt, mgr, volume)
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LOG.info(_LI('Resetting volume %(vol_id)s to previous '
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'status %(status)s (was backing-up).'),
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{'vol_id': volume['id'],
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'status': volume['previous_status']})
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self.db.volume_update(ctxt, volume['id'],
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{'status': volume['previous_status']})
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elif volume['status'] == 'restoring-backup':
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self._detach_all_attachments(ctxt, mgr, volume)
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LOG.info(_LI('setting volume %s to error_restoring '
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'(was restoring-backup).'), volume['id'])
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self.db.volume_update(ctxt, volume['id'],
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{'status': 'error_restoring'})
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# TODO(smulcahy) implement full resume of backup and restore
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# operations on restart (rather than simply resetting)
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backups = objects.BackupList.get_all_by_host(ctxt, self.host)
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for backup in backups:
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if backup['status'] == 'creating':
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LOG.info(_LI('Resetting backup %s to error (was creating).'),
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backup['id'])
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err = 'incomplete backup reset on manager restart'
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self._update_backup_error(backup, ctxt, err)
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if backup['status'] == 'restoring':
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LOG.info(_LI('Resetting backup %s to '
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'available (was restoring).'),
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backup['id'])
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backup.status = 'available'
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backup.save()
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if backup['status'] == 'deleting':
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LOG.info(_LI('Resuming delete on backup: %s.'), backup['id'])
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if CONF.backup_service_inithost_offload:
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# Offload all the pending backup delete operations to the
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# threadpool to prevent the main backup service thread
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# from being blocked.
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self._add_to_threadpool(self.delete_backup, ctxt, backup)
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else:
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# By default, delete backups sequentially
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self.delete_backup(ctxt, backup)
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self._cleanup_temp_volumes_snapshots(backups)
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def _detach_all_attachments(self, ctxt, mgr, volume):
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attachments = volume['volume_attachment'] or []
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for attachment in attachments:
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if (attachment['attached_host'] == self.host and
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attachment['instance_uuid'] is None):
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mgr.detach_volume(ctxt, volume['id'],
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attachment['id'])
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def _cleanup_temp_volumes_snapshots(self, backups):
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# NOTE(xyang): If the service crashes or gets restarted during the
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# backup operation, there could be temporary volumes or snapshots
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# that are not deleted. Make sure any temporary volumes or snapshots
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# create by the backup job are deleted when service is started.
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ctxt = context.get_admin_context()
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for backup in backups:
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try:
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volume = self.db.volume_get(ctxt, backup.volume_id)
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volume_host = volume_utils.extract_host(volume['host'],
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'backend')
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backend = self._get_volume_backend(host=volume_host)
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mgr = self._get_manager(backend)
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except (KeyError, exception.VolumeNotFound):
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LOG.debug("Could not find a volume to clean up for "
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"backup %s.", backup.id)
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continue
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if backup.temp_volume_id and backup.status == 'error':
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try:
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temp_volume = self.db.volume_get(ctxt,
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backup.temp_volume_id)
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# The temp volume should be deleted directly thru the
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# the volume driver, not thru the volume manager.
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mgr.driver.delete_volume(temp_volume)
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self.db.volume_destroy(ctxt, temp_volume['id'])
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except exception.VolumeNotFound:
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LOG.debug("Could not find temp volume %(vol)s to clean up "
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"for backup %(backup)s.",
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{'vol': backup.temp_volume_id,
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'backup': backup.id})
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backup.temp_volume_id = None
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backup.save()
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if backup.temp_snapshot_id and backup.status == 'error':
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try:
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temp_snapshot = objects.Snapshot.get_by_id(
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ctxt, backup.temp_snapshot_id)
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# The temp snapshot should be deleted directly thru the
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# volume driver, not thru the volume manager.
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mgr.driver.delete_snapshot(temp_snapshot)
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with temp_snapshot.obj_as_admin():
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self.db.volume_glance_metadata_delete_by_snapshot(
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ctxt, temp_snapshot.id)
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temp_snapshot.destroy()
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except exception.SnapshotNotFound:
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LOG.debug("Could not find temp snapshot %(snap)s to clean "
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"up for backup %(backup)s.",
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{'snap': backup.temp_snapshot_id,
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'backup': backup.id})
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backup.temp_snapshot_id = None
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backup.save()
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def create_backup(self, context, backup):
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"""Create volume backups using configured backup service."""
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volume_id = backup.volume_id
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volume = self.db.volume_get(context, volume_id)
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previous_status = volume.get('previous_status', None)
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LOG.info(_LI('Create backup started, backup: %(backup_id)s '
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'volume: %(volume_id)s.'),
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{'backup_id': backup.id, 'volume_id': volume_id})
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self._notify_about_backup_usage(context, backup, "create.start")
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volume_host = volume_utils.extract_host(volume['host'], 'backend')
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backend = self._get_volume_backend(host=volume_host)
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backup.host = self.host
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backup.service = self.driver_name
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backup.save()
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expected_status = 'backing-up'
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actual_status = volume['status']
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if actual_status != expected_status:
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err = _('Create backup aborted, expected volume status '
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'%(expected_status)s but got %(actual_status)s.') % {
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'expected_status': expected_status,
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'actual_status': actual_status,
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}
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self._update_backup_error(backup, context, err)
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raise exception.InvalidVolume(reason=err)
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expected_status = 'creating'
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actual_status = backup.status
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if actual_status != expected_status:
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err = _('Create backup aborted, expected backup status '
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'%(expected_status)s but got %(actual_status)s.') % {
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'expected_status': expected_status,
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'actual_status': actual_status,
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}
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self._update_backup_error(backup, context, err)
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backup.save()
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raise exception.InvalidBackup(reason=err)
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try:
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# NOTE(flaper87): Verify the driver is enabled
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# before going forward. The exception will be caught,
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# the volume status will be set back to available and
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# the backup status to 'error'
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utils.require_driver_initialized(self.driver)
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backup_service = self.service.get_backup_driver(context)
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self._get_driver(backend).backup_volume(context, backup,
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backup_service)
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except Exception as err:
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with excutils.save_and_reraise_exception():
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self.db.volume_update(context, volume_id,
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{'status': previous_status,
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'previous_status': 'error_backing-up'})
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self._update_backup_error(backup, context, six.text_type(err))
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# Restore the original status.
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self.db.volume_update(context, volume_id,
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{'status': previous_status,
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'previous_status': 'backing-up'})
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backup.status = 'available'
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backup.size = volume['size']
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backup.availability_zone = self.az
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backup.save()
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# Handle the num_dependent_backups of parent backup when child backup
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# has created successfully.
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if backup.parent_id:
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parent_backup = objects.Backup.get_by_id(context,
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backup.parent_id)
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parent_backup.num_dependent_backups += 1
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parent_backup.save()
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LOG.info(_LI('Create backup finished. backup: %s.'), backup.id)
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self._notify_about_backup_usage(context, backup, "create.end")
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def restore_backup(self, context, backup, volume_id):
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"""Restore volume backups from configured backup service."""
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LOG.info(_LI('Restore backup started, backup: %(backup_id)s '
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'volume: %(volume_id)s.'),
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{'backup_id': backup.id, 'volume_id': volume_id})
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volume = self.db.volume_get(context, volume_id)
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volume_host = volume_utils.extract_host(volume['host'], 'backend')
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backend = self._get_volume_backend(host=volume_host)
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self._notify_about_backup_usage(context, backup, "restore.start")
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backup.host = self.host
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backup.save()
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expected_status = 'restoring-backup'
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actual_status = volume['status']
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if actual_status != expected_status:
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err = (_('Restore backup aborted, expected volume status '
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'%(expected_status)s but got %(actual_status)s.') %
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{'expected_status': expected_status,
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'actual_status': actual_status})
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backup.status = 'available'
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backup.save()
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raise exception.InvalidVolume(reason=err)
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expected_status = 'restoring'
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actual_status = backup['status']
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if actual_status != expected_status:
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err = (_('Restore backup aborted: expected backup status '
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'%(expected_status)s but got %(actual_status)s.') %
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{'expected_status': expected_status,
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'actual_status': actual_status})
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self._update_backup_error(backup, context, err)
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self.db.volume_update(context, volume_id, {'status': 'error'})
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raise exception.InvalidBackup(reason=err)
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if volume['size'] > backup['size']:
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LOG.info(_LI('Volume: %(vol_id)s, size: %(vol_size)d is '
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'larger than backup: %(backup_id)s, '
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'size: %(backup_size)d, continuing with restore.'),
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{'vol_id': volume['id'],
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'vol_size': volume['size'],
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'backup_id': backup['id'],
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'backup_size': backup['size']})
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backup_service = self._map_service_to_driver(backup['service'])
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configured_service = self.driver_name
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if backup_service != configured_service:
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err = _('Restore backup aborted, the backup service currently'
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' configured [%(configured_service)s] is not the'
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' backup service that was used to create this'
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' backup [%(backup_service)s].') % {
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'configured_service': configured_service,
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'backup_service': backup_service,
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}
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backup.status = 'available'
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backup.save()
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self.db.volume_update(context, volume_id, {'status': 'error'})
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raise exception.InvalidBackup(reason=err)
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try:
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# NOTE(flaper87): Verify the driver is enabled
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# before going forward. The exception will be caught,
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# the volume status will be set back to available and
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# the backup status to 'error'
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utils.require_driver_initialized(self.driver)
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backup_service = self.service.get_backup_driver(context)
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self._get_driver(backend).restore_backup(context, backup,
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volume,
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backup_service)
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except Exception:
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with excutils.save_and_reraise_exception():
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self.db.volume_update(context, volume_id,
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{'status': 'error_restoring'})
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backup.status = 'available'
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backup.save()
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self.db.volume_update(context, volume_id, {'status': 'available'})
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backup.status = 'available'
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backup.save()
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LOG.info(_LI('Restore backup finished, backup %(backup_id)s restored'
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' to volume %(volume_id)s.'),
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{'backup_id': backup.id, 'volume_id': volume_id})
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self._notify_about_backup_usage(context, backup, "restore.end")
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def delete_backup(self, context, backup):
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"""Delete volume backup from configured backup service."""
|
|
LOG.info(_LI('Delete backup started, backup: %s.'), backup.id)
|
|
|
|
try:
|
|
# NOTE(flaper87): Verify the driver is enabled
|
|
# before going forward. The exception will be caught
|
|
# and the backup status updated. Fail early since there
|
|
# are no other status to change but backup's
|
|
utils.require_driver_initialized(self.driver)
|
|
except exception.DriverNotInitialized as err:
|
|
with excutils.save_and_reraise_exception():
|
|
self._update_backup_error(backup, context, six.text_type(err))
|
|
|
|
self._notify_about_backup_usage(context, backup, "delete.start")
|
|
backup.host = self.host
|
|
backup.save()
|
|
|
|
expected_status = 'deleting'
|
|
actual_status = backup.status
|
|
if actual_status != expected_status:
|
|
err = _('Delete_backup aborted, expected backup status '
|
|
'%(expected_status)s but got %(actual_status)s.') \
|
|
% {'expected_status': expected_status,
|
|
'actual_status': actual_status}
|
|
self._update_backup_error(backup, context, err)
|
|
raise exception.InvalidBackup(reason=err)
|
|
|
|
backup_service = self._map_service_to_driver(backup['service'])
|
|
if backup_service is not None:
|
|
configured_service = self.driver_name
|
|
if backup_service != configured_service:
|
|
err = _('Delete backup aborted, the backup service currently'
|
|
' configured [%(configured_service)s] is not the'
|
|
' backup service that was used to create this'
|
|
' backup [%(backup_service)s].')\
|
|
% {'configured_service': configured_service,
|
|
'backup_service': backup_service}
|
|
self._update_backup_error(backup, context, err)
|
|
raise exception.InvalidBackup(reason=err)
|
|
|
|
try:
|
|
backup_service = self.service.get_backup_driver(context)
|
|
backup_service.delete(backup)
|
|
except Exception as err:
|
|
with excutils.save_and_reraise_exception():
|
|
self._update_backup_error(backup, context,
|
|
six.text_type(err))
|
|
|
|
# Get reservations
|
|
try:
|
|
reserve_opts = {
|
|
'backups': -1,
|
|
'backup_gigabytes': -backup.size,
|
|
}
|
|
reservations = QUOTAS.reserve(context,
|
|
project_id=backup.project_id,
|
|
**reserve_opts)
|
|
except Exception:
|
|
reservations = None
|
|
LOG.exception(_LE("Failed to update usages deleting backup"))
|
|
|
|
backup.destroy()
|
|
# If this backup is incremental backup, handle the
|
|
# num_dependent_backups of parent backup
|
|
if backup.parent_id:
|
|
parent_backup = objects.Backup.get_by_id(context,
|
|
backup.parent_id)
|
|
if parent_backup.has_dependent_backups:
|
|
parent_backup.num_dependent_backups -= 1
|
|
parent_backup.save()
|
|
# Commit the reservations
|
|
if reservations:
|
|
QUOTAS.commit(context, reservations,
|
|
project_id=backup.project_id)
|
|
|
|
LOG.info(_LI('Delete backup finished, backup %s deleted.'), backup.id)
|
|
self._notify_about_backup_usage(context, backup, "delete.end")
|
|
|
|
def _notify_about_backup_usage(self,
|
|
context,
|
|
backup,
|
|
event_suffix,
|
|
extra_usage_info=None):
|
|
volume_utils.notify_about_backup_usage(
|
|
context, backup, event_suffix,
|
|
extra_usage_info=extra_usage_info,
|
|
host=self.host)
|
|
|
|
def export_record(self, context, backup):
|
|
"""Export all volume backup metadata details to allow clean import.
|
|
|
|
Export backup metadata so it could be re-imported into the database
|
|
without any prerequisite in the backup database.
|
|
|
|
:param context: running context
|
|
:param backup: backup object to export
|
|
:returns: backup_record - a description of how to import the backup
|
|
:returns: contains 'backup_url' - how to import the backup, and
|
|
:returns: 'backup_service' describing the needed driver.
|
|
:raises: InvalidBackup
|
|
"""
|
|
LOG.info(_LI('Export record started, backup: %s.'), backup.id)
|
|
|
|
expected_status = 'available'
|
|
actual_status = backup.status
|
|
if actual_status != expected_status:
|
|
err = (_('Export backup aborted, expected backup status '
|
|
'%(expected_status)s but got %(actual_status)s.') %
|
|
{'expected_status': expected_status,
|
|
'actual_status': actual_status})
|
|
raise exception.InvalidBackup(reason=err)
|
|
|
|
backup_record = {}
|
|
backup_record['backup_service'] = backup.service
|
|
backup_service = self._map_service_to_driver(backup.service)
|
|
configured_service = self.driver_name
|
|
if backup_service != configured_service:
|
|
err = (_('Export record aborted, the backup service currently'
|
|
' configured [%(configured_service)s] is not the'
|
|
' backup service that was used to create this'
|
|
' backup [%(backup_service)s].') %
|
|
{'configured_service': configured_service,
|
|
'backup_service': backup_service})
|
|
raise exception.InvalidBackup(reason=err)
|
|
|
|
# Call driver to create backup description string
|
|
try:
|
|
utils.require_driver_initialized(self.driver)
|
|
backup_service = self.service.get_backup_driver(context)
|
|
driver_info = backup_service.export_record(backup)
|
|
backup_url = backup.encode_record(driver_info=driver_info)
|
|
backup_record['backup_url'] = backup_url
|
|
except Exception as err:
|
|
msg = six.text_type(err)
|
|
raise exception.InvalidBackup(reason=msg)
|
|
|
|
LOG.info(_LI('Export record finished, backup %s exported.'), backup.id)
|
|
return backup_record
|
|
|
|
def import_record(self,
|
|
context,
|
|
backup,
|
|
backup_service,
|
|
backup_url,
|
|
backup_hosts):
|
|
"""Import all volume backup metadata details to the backup db.
|
|
|
|
:param context: running context
|
|
:param backup: The new backup object for the import
|
|
:param backup_service: The needed backup driver for import
|
|
:param backup_url: An identifier string to locate the backup
|
|
:param backup_hosts: Potential hosts to execute the import
|
|
:raises: InvalidBackup
|
|
:raises: ServiceNotFound
|
|
"""
|
|
LOG.info(_LI('Import record started, backup_url: %s.'), backup_url)
|
|
|
|
# Can we import this backup?
|
|
if (backup_service != self.driver_name):
|
|
# No, are there additional potential backup hosts in the list?
|
|
if len(backup_hosts) > 0:
|
|
# try the next host on the list, maybe he can import
|
|
first_host = backup_hosts.pop()
|
|
self.backup_rpcapi.import_record(context,
|
|
first_host,
|
|
backup,
|
|
backup_service,
|
|
backup_url,
|
|
backup_hosts)
|
|
else:
|
|
# empty list - we are the last host on the list, fail
|
|
err = _('Import record failed, cannot find backup '
|
|
'service to perform the import. Request service '
|
|
'%(service)s') % {'service': backup_service}
|
|
self._update_backup_error(backup, context, err)
|
|
raise exception.ServiceNotFound(service_id=backup_service)
|
|
else:
|
|
# Yes...
|
|
try:
|
|
# Deserialize backup record information
|
|
backup_options = backup.decode_record(backup_url)
|
|
|
|
# Extract driver specific info and pass it to the driver
|
|
driver_options = backup_options.pop('driver_info', {})
|
|
utils.require_driver_initialized(self.driver)
|
|
backup_service = self.service.get_backup_driver(context)
|
|
backup_service.import_record(backup, driver_options)
|
|
except Exception as err:
|
|
msg = six.text_type(err)
|
|
self._update_backup_error(backup, context, msg)
|
|
raise exception.InvalidBackup(reason=msg)
|
|
|
|
required_import_options = {
|
|
'display_name',
|
|
'display_description',
|
|
'container',
|
|
'size',
|
|
'service_metadata',
|
|
'service',
|
|
'object_count',
|
|
'id'
|
|
}
|
|
|
|
# Check for missing fields in imported data
|
|
missing_opts = required_import_options - set(backup_options)
|
|
if missing_opts:
|
|
msg = (_('Driver successfully decoded imported backup data, '
|
|
'but there are missing fields (%s).') %
|
|
', '.join(missing_opts))
|
|
self._update_backup_error(backup, context, msg)
|
|
raise exception.InvalidBackup(reason=msg)
|
|
|
|
# Confirm the ID from the record in the DB is the right one
|
|
backup_id = backup_options['id']
|
|
if backup_id != backup.id:
|
|
msg = (_('Trying to import backup metadata from id %(meta_id)s'
|
|
' into backup %(id)s.') %
|
|
{'meta_id': backup_id, 'id': backup.id})
|
|
self._update_backup_error(backup, context, msg)
|
|
raise exception.InvalidBackup(reason=msg)
|
|
|
|
# Overwrite some fields
|
|
backup_options['status'] = 'available'
|
|
backup_options['service'] = self.driver_name
|
|
backup_options['availability_zone'] = self.az
|
|
backup_options['host'] = self.host
|
|
|
|
# Remove some values which are not actual fields and some that
|
|
# were set by the API node
|
|
for key in ('name', 'user_id', 'project_id'):
|
|
backup_options.pop(key, None)
|
|
|
|
# Update the database
|
|
backup.update(backup_options)
|
|
backup.save()
|
|
|
|
# Verify backup
|
|
try:
|
|
if isinstance(backup_service, driver.BackupDriverWithVerify):
|
|
backup_service.verify(backup.id)
|
|
else:
|
|
LOG.warning(_LW('Backup service %(service)s does not '
|
|
'support verify. Backup id %(id)s is '
|
|
'not verified. Skipping verify.'),
|
|
{'service': self.driver_name,
|
|
'id': backup.id})
|
|
except exception.InvalidBackup as err:
|
|
with excutils.save_and_reraise_exception():
|
|
self._update_backup_error(backup, context,
|
|
six.text_type(err))
|
|
|
|
LOG.info(_LI('Import record id %s metadata from driver '
|
|
'finished.'), backup.id)
|
|
|
|
def reset_status(self, context, backup, status):
|
|
"""Reset volume backup status.
|
|
|
|
:param context: running context
|
|
:param backup: The backup object for reset status operation
|
|
:param status: The status to be set
|
|
:raises: InvalidBackup
|
|
:raises: BackupVerifyUnsupportedDriver
|
|
:raises: AttributeError
|
|
"""
|
|
LOG.info(_LI('Reset backup status started, backup_id: '
|
|
'%(backup_id)s, status: %(status)s.'),
|
|
{'backup_id': backup.id,
|
|
'status': status})
|
|
try:
|
|
# NOTE(flaper87): Verify the driver is enabled
|
|
# before going forward. The exception will be caught
|
|
# and the backup status updated. Fail early since there
|
|
# are no other status to change but backup's
|
|
utils.require_driver_initialized(self.driver)
|
|
except exception.DriverNotInitialized:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.exception(_LE("Backup driver has not been initialized"))
|
|
|
|
backup_service = self._map_service_to_driver(backup.service)
|
|
LOG.info(_LI('Backup service: %s.'), backup_service)
|
|
if backup_service is not None:
|
|
configured_service = self.driver_name
|
|
if backup_service != configured_service:
|
|
err = _('Reset backup status aborted, the backup service'
|
|
' currently configured [%(configured_service)s] '
|
|
'is not the backup service that was used to create'
|
|
' this backup [%(backup_service)s].') % \
|
|
{'configured_service': configured_service,
|
|
'backup_service': backup_service}
|
|
raise exception.InvalidBackup(reason=err)
|
|
# Verify backup
|
|
try:
|
|
# check whether the backup is ok or not
|
|
if status == 'available' and backup['status'] != 'restoring':
|
|
# check whether we could verify the backup is ok or not
|
|
if isinstance(backup_service,
|
|
driver.BackupDriverWithVerify):
|
|
backup_service.verify(backup.id)
|
|
backup.status = status
|
|
backup.save()
|
|
# driver does not support verify function
|
|
else:
|
|
msg = (_('Backup service %(configured_service)s '
|
|
'does not support verify. Backup id'
|
|
' %(id)s is not verified. '
|
|
'Skipping verify.') %
|
|
{'configured_service': self.driver_name,
|
|
'id': backup.id})
|
|
raise exception.BackupVerifyUnsupportedDriver(
|
|
reason=msg)
|
|
# reset status to error or from restoring to available
|
|
else:
|
|
if (status == 'error' or
|
|
(status == 'available' and
|
|
backup.status == 'restoring')):
|
|
backup.status = status
|
|
backup.save()
|
|
except exception.InvalidBackup:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.error(_LE("Backup id %s is not invalid. "
|
|
"Skipping reset."), backup.id)
|
|
except exception.BackupVerifyUnsupportedDriver:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.error(_LE('Backup service %(configured_service)s '
|
|
'does not support verify. Backup id '
|
|
'%(id)s is not verified. '
|
|
'Skipping verify.'),
|
|
{'configured_service': self.driver_name,
|
|
'id': backup.id})
|
|
except AttributeError:
|
|
msg = (_('Backup service %(service)s does not support '
|
|
'verify. Backup id %(id)s is not verified. '
|
|
'Skipping reset.') %
|
|
{'service': self.driver_name,
|
|
'id': backup.id})
|
|
LOG.error(msg)
|
|
raise exception.BackupVerifyUnsupportedDriver(
|
|
reason=msg)
|
|
|
|
# send notification to ceilometer
|
|
notifier_info = {'id': backup.id, 'update': {'status': status}}
|
|
notifier = rpc.get_notifier('backupStatusUpdate')
|
|
notifier.info(context, "backups.reset_status.end",
|
|
notifier_info)
|
|
|
|
def check_support_to_force_delete(self, context):
|
|
"""Check if the backup driver supports force delete operation.
|
|
|
|
:param context: running context
|
|
"""
|
|
backup_service = self.service.get_backup_driver(context)
|
|
return backup_service.support_force_delete
|