124 lines
4.4 KiB
Python
124 lines
4.4 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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Client side of the volume backup RPC API.
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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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from cinder import rpc
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CONF = cfg.CONF
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LOG = logging.getLogger(__name__)
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class BackupAPI(rpc.RPCAPI):
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"""Client side of the volume rpc API.
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API version history:
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.. code-block:: none
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1.0 - Initial version.
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1.1 - Changed methods to accept backup objects instead of IDs.
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1.2 - A version that got in by mistake (without breaking anything).
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1.3 - Dummy version bump to mark start of having cinder-backup service
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decoupled from cinder-volume.
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... Mitaka supports messaging 1.3. Any changes to existing methods in
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1.x after this point should be done so that they can handle version cap
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set to 1.3.
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2.0 - Remove 1.x compatibility
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"""
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RPC_API_VERSION = '2.0'
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TOPIC = CONF.backup_topic
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BINARY = 'cinder-backup'
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def _compat_ver(self, current, legacy):
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if self.client.can_send_version(current):
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return current
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else:
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return legacy
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def create_backup(self, ctxt, backup):
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LOG.debug("create_backup in rpcapi backup_id %s", backup.id)
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version = '2.0'
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cctxt = self.client.prepare(server=backup.host, version=version)
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cctxt.cast(ctxt, 'create_backup', backup=backup)
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def restore_backup(self, ctxt, volume_host, backup, volume_id):
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LOG.debug("restore_backup in rpcapi backup_id %s", backup.id)
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version = '2.0'
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cctxt = self.client.prepare(server=volume_host, version=version)
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cctxt.cast(ctxt, 'restore_backup', backup=backup,
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volume_id=volume_id)
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def delete_backup(self, ctxt, backup):
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LOG.debug("delete_backup rpcapi backup_id %s", backup.id)
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version = '2.0'
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cctxt = self.client.prepare(server=backup.host, version=version)
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cctxt.cast(ctxt, 'delete_backup', backup=backup)
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def export_record(self, ctxt, backup):
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LOG.debug("export_record in rpcapi backup_id %(id)s "
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"on host %(host)s.",
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{'id': backup.id,
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'host': backup.host})
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version = '2.0'
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cctxt = self.client.prepare(server=backup.host, version=version)
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return cctxt.call(ctxt, 'export_record', backup=backup)
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def import_record(self,
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ctxt,
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host,
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backup,
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backup_service,
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backup_url,
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backup_hosts):
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LOG.debug("import_record rpcapi backup id %(id)s "
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"on host %(host)s for backup_url %(url)s.",
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{'id': backup.id,
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'host': host,
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'url': backup_url})
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version = '2.0'
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cctxt = self.client.prepare(server=host, version=version)
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cctxt.cast(ctxt, 'import_record',
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backup=backup,
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backup_service=backup_service,
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backup_url=backup_url,
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backup_hosts=backup_hosts)
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def reset_status(self, ctxt, backup, status):
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LOG.debug("reset_status in rpcapi backup_id %(id)s "
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"on host %(host)s.",
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{'id': backup.id,
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'host': backup.host})
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version = '2.0'
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cctxt = self.client.prepare(server=backup.host, version=version)
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return cctxt.cast(ctxt, 'reset_status', backup=backup, status=status)
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def check_support_to_force_delete(self, ctxt, host):
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LOG.debug("Check if backup driver supports force delete "
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"on host %(host)s.", {'host': host})
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version = '2.0'
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cctxt = self.client.prepare(server=host, version=version)
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return cctxt.call(ctxt, 'check_support_to_force_delete')
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