429 lines
14 KiB
Python
429 lines
14 KiB
Python
# Copyright 2011 Denali Systems, Inc.
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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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Volume interface (1.1 extension).
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"""
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from cinderclient import base
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from cinderclient import utils
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class Volume(base.Resource):
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"""A volume is an extra block level storage to the OpenStack instances."""
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NAME_ATTR = "display_name"
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def __repr__(self):
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return "<Volume: %s>" % self.id
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def delete(self):
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"""Delete this volume."""
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self.manager.delete(self)
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def update(self, **kwargs):
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"""Update the display_name or display_description for this volume."""
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self.manager.update(self, **kwargs)
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def attach(self, instance_uuid, mountpoint, mode='rw',
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host_name=None):
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"""Set attachment metadata.
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:param instance_uuid: uuid of the attaching instance.
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:param mountpoint: mountpoint on the attaching instance or host.
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:param mode: the access mode
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:param host_name: name of the attaching host.
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"""
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return self.manager.attach(self, instance_uuid, mountpoint, mode,
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host_name)
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def detach(self):
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"""Clear attachment metadata."""
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return self.manager.detach(self)
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def reserve(self, volume):
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"""Reserve this volume."""
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return self.manager.reserve(self)
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def unreserve(self, volume):
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"""Unreserve this volume."""
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return self.manager.unreserve(self)
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def begin_detaching(self, volume):
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"""Begin detaching volume."""
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return self.manager.begin_detaching(self)
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def roll_detaching(self, volume):
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"""Roll detaching volume."""
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return self.manager.roll_detaching(self)
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def initialize_connection(self, volume, connector):
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"""Initialize a volume connection.
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:param connector: connector dict from nova.
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"""
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return self.manager.initialize_connection(self, connector)
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def terminate_connection(self, volume, connector):
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"""Terminate a volume connection.
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:param connector: connector dict from nova.
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"""
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return self.manager.terminate_connection(self, connector)
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def set_metadata(self, volume, metadata):
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"""Set or Append metadata to a volume.
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:param volume : The :class: `Volume` to set metadata on
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:param metadata: A dict of key/value pairs to set
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"""
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return self.manager.set_metadata(self, metadata)
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def upload_to_image(self, force, image_name, container_format,
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disk_format):
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"""Upload a volume to image service as an image."""
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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 force_delete(self):
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"""Delete the specified volume ignoring its current state.
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:param volume: The UUID of the volume to force-delete.
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"""
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self.manager.force_delete(self)
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def reset_state(self, state):
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"""Update the volume with the provided state."""
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self.manager.reset_state(self, state)
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def extend(self, volume, new_size):
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"""Extend the size of the specified volume.
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:param volume: The UUID of the volume to extend.
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:param new_size: The desired size to extend volume to.
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"""
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self.manager.extend(self, new_size)
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def migrate_volume(self, host, force_host_copy):
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"""Migrate the volume to a new host."""
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self.manager.migrate_volume(self, host, force_host_copy)
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def update_all_metadata(self, metadata):
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"""Update all metadata of this volume."""
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return self.manager.update_all_metadata(self, metadata)
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def update_readonly_flag(self, volume, read_only):
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"""Update the read-only access mode flag of the specified volume.
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:param volume: The UUID of the volume to update.
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:param read_only: The value to indicate whether to update volume to
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read-only access mode.
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"""
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self.manager.update_readonly_flag(self, read_only)
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class VolumeManager(base.ManagerWithFind):
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"""
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Manage :class:`Volume` resources.
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"""
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resource_class = Volume
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def create(self, size, snapshot_id=None, source_volid=None,
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display_name=None, display_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):
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"""
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Creates a volume.
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:param size: Size of volume in GB
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:param snapshot_id: ID of the snapshot
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:param display_name: Name of the volume
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:param display_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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: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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body = {'volume': {'size': size,
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'snapshot_id': snapshot_id,
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'display_name': display_name,
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'display_description': display_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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}}
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return self._create('/volumes', body, 'volume')
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def get(self, volume_id):
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"""
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Get a volume.
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:param volume_id: The ID of the volume to get.
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:rtype: :class:`Volume`
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"""
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return self._get("/volumes/%s" % volume_id, "volume")
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def list(self, detailed=True, search_opts=None, limit=None):
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"""
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Get a list of all volumes.
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:rtype: list of :class:`Volume`
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"""
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if search_opts is None:
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search_opts = {}
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if limit:
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search_opts['limit'] = limit
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query_string = utils.build_query_param(search_opts, sort=True)
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detail = ""
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if detailed:
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detail = "/detail"
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return self._list("/volumes%s%s" % (detail, query_string),
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"volumes")
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def delete(self, volume):
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"""
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Delete a volume.
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:param volume: The :class:`Volume` to delete.
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"""
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self._delete("/volumes/%s" % base.getid(volume))
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def update(self, volume, **kwargs):
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"""
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Update the display_name or display_description for a volume.
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:param volume: The :class:`Volume` to update.
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"""
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if not kwargs:
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return
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body = {"volume": kwargs}
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self._update("/volumes/%s" % base.getid(volume), body)
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def _action(self, action, volume, info=None, **kwargs):
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"""
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Perform a volume "action."
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"""
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body = {action: info}
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self.run_hooks('modify_body_for_action', body, **kwargs)
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url = '/volumes/%s/action' % base.getid(volume)
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return self.api.client.post(url, body=body)
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def attach(self, volume, instance_uuid, mountpoint, mode='rw',
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host_name=None):
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"""
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Set attachment metadata.
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:param volume: The :class:`Volume` (or its ID)
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you would like to attach.
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:param instance_uuid: uuid of the attaching instance or host.
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:param mountpoint: mountpoint on the attaching instance.
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:param mode: the access mode.
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:param host_name: name of the attaching host.
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"""
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body = {'mountpoint': mountpoint, 'mode': mode}
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if instance_uuid is not None:
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body.update({'instance_uuid': instance_uuid})
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if host_name is not None:
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body.update({'host_name': host_name})
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return self._action('os-attach', volume, body)
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def detach(self, volume):
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"""
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Clear attachment metadata.
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:param volume: The :class:`Volume` (or its ID)
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you would like to detach.
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"""
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return self._action('os-detach', volume)
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def reserve(self, volume):
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"""
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Reserve this volume.
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:param volume: The :class:`Volume` (or its ID)
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you would like to reserve.
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"""
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return self._action('os-reserve', volume)
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def unreserve(self, volume):
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"""
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Unreserve this volume.
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:param volume: The :class:`Volume` (or its ID)
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you would like to unreserve.
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"""
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return self._action('os-unreserve', volume)
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def begin_detaching(self, volume):
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"""
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Begin detaching this volume.
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:param volume: The :class:`Volume` (or its ID)
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you would like to detach.
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"""
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return self._action('os-begin_detaching', volume)
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def roll_detaching(self, volume):
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"""
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Roll detaching this volume.
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:param volume: The :class:`Volume` (or its ID)
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you would like to roll detaching.
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"""
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return self._action('os-roll_detaching', volume)
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def initialize_connection(self, volume, connector):
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"""
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Initialize a volume connection.
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:param volume: The :class:`Volume` (or its ID).
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:param connector: connector dict from nova.
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"""
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return self._action('os-initialize_connection', volume,
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{'connector': connector})[1]['connection_info']
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def terminate_connection(self, volume, connector):
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"""
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Terminate a volume connection.
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:param volume: The :class:`Volume` (or its ID).
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:param connector: connector dict from nova.
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"""
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self._action('os-terminate_connection', volume,
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{'connector': connector})
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def set_metadata(self, volume, metadata):
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"""
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Update/Set a volumes metadata.
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:param volume: The :class:`Volume`.
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:param metadata: A list of keys to be set.
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"""
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body = {'metadata': metadata}
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return self._create("/volumes/%s/metadata" % base.getid(volume),
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body, "metadata")
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def delete_metadata(self, volume, keys):
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"""
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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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for k in keys:
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self._delete("/volumes/%s/metadata/%s" % (base.getid(volume), k))
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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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"""
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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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def force_delete(self, volume):
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return self._action('os-force_delete', base.getid(volume))
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def reset_state(self, volume, state):
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"""Update the provided volume with the provided state."""
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return self._action('os-reset_status', volume, {'status': state})
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def extend(self, volume, new_size):
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return self._action('os-extend',
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base.getid(volume),
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{'new_size': new_size})
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def get_encryption_metadata(self, volume_id):
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"""
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Retrieve the encryption metadata from the desired volume.
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:param volume_id: the id of the volume to query
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:return: a dictionary of volume encryption metadata
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"""
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return self._get("/volumes/%s/encryption" % volume_id)._info
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def migrate_volume(self, volume, host, force_host_copy):
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"""Migrate volume to new host.
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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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"""
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return self._action('os-migrate_volume',
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volume,
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{'host': host, 'force_host_copy': force_host_copy})
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def migrate_volume_completion(self, old_volume, new_volume, error):
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"""Complete the migration from the old volume to the temp new one.
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:param old_volume: The original :class:`Volume` in the migration
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:param new_volume: The new temporary :class:`Volume` in the migration
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:param error: Inform of an error to cause migration cleanup
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"""
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new_volume_id = base.getid(new_volume)
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return self._action('os-migrate_volume_completion',
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old_volume,
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{'new_volume': new_volume_id, 'error': error})[1]
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def update_all_metadata(self, volume, metadata):
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"""Update all metadata of a volume.
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:param volume: The :class:`Volume`.
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:param metadata: A list of keys to be updated.
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"""
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body = {'metadata': metadata}
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return self._update("/volumes/%s/metadata" % base.getid(volume),
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body)
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def update_readonly_flag(self, volume, flag):
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return self._action('os-update_readonly_flag',
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base.getid(volume),
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{'readonly': flag})
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def set_bootable(self, volume, flag):
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return self._action('os-set_bootable',
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base.getid(volume),
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{'bootable': flag})
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