adb141a262
This form of multiattach was never fully supported and is now being replaced by the new mutliattach workflow with Nova. As part of this, volume type extra specs will be used to indicate multiattach ability and will allow retyping between volume types to change the flag after creation. That work is still in progress and has some potential to change. But we know we are not going to support this old style, so we should get that deprecated now so we can remove it and not cause any confusion. Change-Id: Icbb9c0ca89b25620cedff6cac7a4723e7126eca6
291 lines
12 KiB
Python
291 lines
12 KiB
Python
# Copyright (c) 2013 OpenStack Foundation
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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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"""Volume interface (v3 extension)."""
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import warnings
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from cinderclient import api_versions
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from cinderclient.apiclient import base as common_base
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from cinderclient import base
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from cinderclient.v2 import volumes
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class Volume(volumes.Volume):
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def upload_to_image(self, force, image_name, container_format,
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disk_format, visibility=None,
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protected=None):
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"""Upload a volume to image service as an image.
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:param force: Boolean to enables or disables upload of a volume that
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is attached to an instance.
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:param image_name: The new image name.
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:param container_format: Container format type.
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:param disk_format: Disk format type.
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:param visibility: The accessibility of image (allowed for
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3.1-latest).
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:param protected: Boolean to decide whether prevents image from being
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deleted (allowed for 3.1-latest).
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"""
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if self.manager.api_version >= api_versions.APIVersion("3.1"):
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visibility = 'private' if visibility is None else visibility
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protected = False if protected is None else protected
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return self.manager.upload_to_image(self, force, image_name,
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container_format, disk_format,
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visibility, protected)
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return self.manager.upload_to_image(self, force, image_name,
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container_format, disk_format)
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def revert_to_snapshot(self, snapshot):
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"""Revert a volume to a snapshot."""
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self.manager.revert_to_snapshot(self, snapshot)
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def migrate_volume(self, host, force_host_copy, lock_volume, cluster=None):
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"""Migrate the volume to a new host."""
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return self.manager.migrate_volume(self, host, force_host_copy,
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lock_volume, cluster)
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def manage(self, host, ref, name=None, description=None,
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volume_type=None, availability_zone=None, metadata=None,
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bootable=False, cluster=None):
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"""Manage an existing volume."""
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return self.manager.manage(host=host, ref=ref, name=name,
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description=description,
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volume_type=volume_type,
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availability_zone=availability_zone,
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metadata=metadata, bootable=bootable,
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cluster=cluster)
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class VolumeManager(volumes.VolumeManager):
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resource_class = Volume
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def create(self, size, consistencygroup_id=None,
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group_id=None, snapshot_id=None,
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source_volid=None, name=None, description=None,
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volume_type=None, user_id=None,
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project_id=None, availability_zone=None,
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metadata=None, imageRef=None, scheduler_hints=None,
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source_replica=None, multiattach=False, backup_id=None):
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"""Create a volume.
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:param size: Size of volume in GB
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:param consistencygroup_id: ID of the consistencygroup
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:param group_id: ID of the group
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:param snapshot_id: ID of the snapshot
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:param name: Name of the volume
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:param description: Description of the volume
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:param volume_type: Type of volume
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:param user_id: User id derived from context
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:param project_id: Project id derived from context
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:param availability_zone: Availability Zone to use
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:param metadata: Optional metadata to set on volume creation
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:param imageRef: reference to an image stored in glance
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:param source_volid: ID of source volume to clone from
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:param source_replica: ID of source volume to clone replica
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:param scheduler_hints: (optional extension) arbitrary key-value pairs
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specified by the client to help boot an instance
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:param multiattach: Allow the volume to be attached to more than
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one instance (deprecated)
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:param backup_id: ID of the backup
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:rtype: :class:`Volume`
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"""
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if metadata is None:
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volume_metadata = {}
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else:
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volume_metadata = metadata
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if multiattach:
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warnings.warn('The ``multiattach`` volume create flag is '
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'deprecated and will be removed in a future '
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'release. Multiattach capability is now controlled '
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'using volume type extra specs.',
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DeprecationWarning)
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body = {'volume': {'size': size,
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'consistencygroup_id': consistencygroup_id,
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'snapshot_id': snapshot_id,
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'name': name,
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'description': description,
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'volume_type': volume_type,
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'user_id': user_id,
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'project_id': project_id,
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'availability_zone': availability_zone,
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'status': "creating",
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'attach_status': "detached",
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'metadata': volume_metadata,
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'imageRef': imageRef,
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'source_volid': source_volid,
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'source_replica': source_replica,
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'multiattach': multiattach,
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'backup_id': backup_id
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}}
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if group_id:
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body['volume']['group_id'] = group_id
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if scheduler_hints:
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body['OS-SCH-HNT:scheduler_hints'] = scheduler_hints
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return self._create('/volumes', body, 'volume')
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@api_versions.wraps('3.40')
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def revert_to_snapshot(self, volume, snapshot):
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"""Revert a volume to a snapshot.
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The snapshot must be the most recent one known to cinder.
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:param volume: volume object.
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:param snapshot: snapshot object.
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"""
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return self._action('revert', volume,
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info={'snapshot_id': base.getid(snapshot.id)})
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def summary(self, all_tenants):
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"""Get volumes summary."""
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url = "/volumes/summary"
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if all_tenants:
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url += "?all_tenants=True"
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_, body = self.api.client.get(url)
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return body
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@api_versions.wraps("3.0")
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def delete_metadata(self, volume, keys):
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"""Delete specified keys from volumes metadata.
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:param volume: The :class:`Volume`.
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:param keys: A list of keys to be removed.
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"""
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response_list = []
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for k in keys:
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resp, body = self._delete("/volumes/%s/metadata/%s" %
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(base.getid(volume), k))
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response_list.append(resp)
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return common_base.ListWithMeta([], response_list)
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@api_versions.wraps("3.15") # noqa: F811
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def delete_metadata(self, volume, keys):
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"""Delete specified keys from volumes metadata.
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:param volume: The :class:`Volume`.
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:param keys: A list of keys to be removed.
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"""
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# pylint: disable=function-redefined
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data = self._get("/volumes/%s/metadata" % base.getid(volume))
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metadata = data._info.get("metadata", {})
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if set(keys).issubset(metadata.keys()):
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for k in keys:
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metadata.pop(k)
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body = {'metadata': metadata}
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kwargs = {'headers': {'If-Match': data._checksum}}
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return self._update("/volumes/%s/metadata" % base.getid(volume),
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body, **kwargs)
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@api_versions.wraps("3.0")
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def upload_to_image(self, volume, force, image_name, container_format,
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disk_format):
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"""Upload volume to image service as image.
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:param volume: The :class:`Volume` to upload.
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"""
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return self._action('os-volume_upload_image',
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volume,
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{'force': force,
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'image_name': image_name,
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'container_format': container_format,
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'disk_format': disk_format})
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@api_versions.wraps("3.1") # noqa: F811
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def upload_to_image(self, volume, force, image_name, container_format,
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disk_format, visibility, protected):
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"""Upload volume to image service as image.
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:param volume: The :class:`Volume` to upload.
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"""
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# pylint: disable=function-redefined
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return self._action('os-volume_upload_image',
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volume,
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{'force': force,
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'image_name': image_name,
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'container_format': container_format,
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'disk_format': disk_format,
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'visibility': visibility,
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'protected': protected})
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def migrate_volume(self, volume, host, force_host_copy, lock_volume,
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cluster=None):
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"""Migrate volume to new backend.
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The new backend is defined by the host or the cluster (not both).
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:param volume: The :class:`Volume` to migrate
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:param host: The destination host
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:param force_host_copy: Skip driver optimizations
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:param lock_volume: Lock the volume and guarantee the migration
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to finish
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:param cluster: The cluster
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"""
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body = {'host': host, 'force_host_copy': force_host_copy,
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'lock_volume': lock_volume}
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if self.api_version.matches('3.16'):
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if cluster:
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body['cluster'] = cluster
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del body['host']
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return self._action('os-migrate_volume', volume, body)
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def manage(self, host, ref, name=None, description=None,
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volume_type=None, availability_zone=None, metadata=None,
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bootable=False, cluster=None):
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"""Manage an existing volume."""
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body = {'volume': {'host': host,
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'ref': ref,
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'name': name,
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'description': description,
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'volume_type': volume_type,
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'availability_zone': availability_zone,
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'metadata': metadata,
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'bootable': bootable
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}}
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if self.api_version.matches('3.16') and cluster:
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body['cluster'] = cluster
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return self._create('/os-volume-manage', body, 'volume')
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@api_versions.wraps("3.8")
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def list_manageable(self, host, detailed=True, marker=None, limit=None,
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offset=None, sort=None):
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url = self._build_list_url("manageable_volumes", detailed=detailed,
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search_opts={'host': host}, marker=marker,
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limit=limit, offset=offset, sort=sort)
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return self._list(url, "manageable-volumes")
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@api_versions.wraps("2.0", "3.32")
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def get_pools(self, detail):
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"""Show pool information for backends."""
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query_string = ""
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if detail:
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query_string = "?detail=True"
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return self._get('/scheduler-stats/get_pools%s' % query_string, None)
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@api_versions.wraps("3.33") # noqa: F811
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def get_pools(self, detail, search_opts):
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"""Show pool information for backends."""
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# pylint: disable=function-redefined
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options = {'detail': detail}
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options.update(search_opts)
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url = self._build_list_url('scheduler-stats/get_pools', detailed=False,
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search_opts=options)
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return self._get(url, None)
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