133 lines
4.2 KiB
Python
133 lines
4.2 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 novaclient import base
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class Volume(base.Resource):
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"""
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A volume is an extra block level storage to the OpenStack instances.
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"""
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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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"""
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Delete this volume.
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"""
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return self.manager.delete(self)
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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,
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display_name=None, display_description=None):
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"""
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Create 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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:rtype: :class:`Volume`
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"""
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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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return self._create('/os-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 delete.
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:rtype: :class:`Volume`
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"""
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return self._get("/os-volumes/%s" % volume_id, "volume")
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def list(self, detailed=True):
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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 detailed is True:
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return self._list("/os-volumes/detail", "volumes")
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else:
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return self._list("/os-volumes", "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("/os-volumes/%s" % base.getid(volume))
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def create_server_volume(self, server_id, volume_id, device):
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"""
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Attach a volume identified by the volume ID to the given server ID
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:param server_id: The ID of the server
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:param volume_id: The ID of the volume to attach.
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:param device: The device name
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:rtype: :class:`Volume`
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"""
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body = {'volumeAttachment': {'volumeId': volume_id,
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'device': device}}
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return self._create("/servers/%s/os-volume_attachments" % server_id,
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body, "volumeAttachment")
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def get_server_volume(self, server_id, attachment_id):
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"""
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Get the volume identified by the attachment ID, that is attached to
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the given server ID
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:param server_id: The ID of the server
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:param attachment_id: The ID of the attachment
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:rtype: :class:`Volume`
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"""
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return self._get("/servers/%s/os-volume_attachments/%s" % (server_id,
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attachment_id,), "volumeAttachment")
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def get_server_volumes(self, server_id):
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"""
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Get a list of all the attached volumes for the given server ID
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:param server_id: The ID of the server
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:rtype: list of :class:`Volume`
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"""
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return self._list("/servers/%s/os-volume_attachments" % server_id,
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"volumeAttachments")
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def delete_server_volume(self, server_id, attachment_id):
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"""
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Detach a volume identified by the attachment ID from the given server
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:param server_id: The ID of the server
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:param attachment_id: The ID of the attachment
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"""
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return self._delete("/servers/%s/os-volume_attachments/%s" %
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(server_id, attachment_id,))
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