154 lines
5.3 KiB
Python
154 lines
5.3 KiB
Python
# Copyright (c) 2015 FUJITSU LIMITED
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# Copyright (c) 2012 EMC Corporation.
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# Copyright (c) 2012 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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#
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"""iSCSI Cinder Volume driver for Fujitsu ETERNUS DX S3 series."""
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from oslo_log import log as logging
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from cinder.common import constants
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from cinder import exception
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from cinder.i18n import _
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from cinder import interface
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from cinder.volume import driver
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from cinder.volume.drivers.fujitsu.eternus_dx import eternus_dx_common
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LOG = logging.getLogger(__name__)
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@interface.volumedriver
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class FJDXISCSIDriver(driver.ISCSIDriver):
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"""iSCSI Cinder Volume Driver for Fujitsu ETERNUS DX S3 series."""
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# ThirdPartySystems wiki page
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CI_WIKI_NAME = "Fujitsu_ETERNUS_CI"
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VERSION = eternus_dx_common.FJDXCommon.VERSION
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def __init__(self, *args, **kwargs):
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super(FJDXISCSIDriver, self).__init__(*args, **kwargs)
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self.common = eternus_dx_common.FJDXCommon(
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'iSCSI',
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configuration=self.configuration)
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self.VERSION = self.common.VERSION
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@staticmethod
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def get_driver_options():
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return eternus_dx_common.FJDXCommon.get_driver_options()
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def check_for_setup_error(self):
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if not self.common.pywbemAvailable:
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msg = _('pywbem could not be imported! '
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'pywbem is necessary for this volume driver.')
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LOG.error(msg)
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raise exception.VolumeBackendAPIException(data=msg)
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def create_volume(self, volume):
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"""Create volume."""
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model_update = self.common.create_volume(volume)
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return model_update
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def create_volume_from_snapshot(self, volume, snapshot):
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"""Creates a volume from a snapshot."""
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element_path, metadata = (
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self.common.create_volume_from_snapshot(volume, snapshot))
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v_metadata = volume.get('volume_metadata')
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if v_metadata:
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for data in v_metadata:
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metadata[data['key']] = data['value']
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else:
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v_metadata = volume.get('metadata', {})
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metadata.update(v_metadata)
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return {'provider_location': str(element_path), 'metadata': metadata}
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def create_cloned_volume(self, volume, src_vref):
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"""Create cloned volume."""
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element_path, metadata = (
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self.common.create_cloned_volume(volume, src_vref))
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v_metadata = volume.get('volume_metadata')
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if v_metadata:
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for data in v_metadata:
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metadata[data['key']] = data['value']
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else:
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v_metadata = volume.get('metadata', {})
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metadata.update(v_metadata)
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return {'provider_location': str(element_path), 'metadata': metadata}
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def delete_volume(self, volume):
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"""Delete volume on ETERNUS."""
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self.common.delete_volume(volume)
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def create_snapshot(self, snapshot):
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"""Creates a snapshot."""
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element_path, metadata = self.common.create_snapshot(snapshot)
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return {'provider_location': str(element_path)}
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def delete_snapshot(self, snapshot):
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"""Deletes a snapshot."""
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self.common.delete_snapshot(snapshot)
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def ensure_export(self, context, volume):
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"""Driver entry point to get the export info for an existing volume."""
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return
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def create_export(self, context, volume, connector):
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"""Driver entry point to get the export info for a new volume."""
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return
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def remove_export(self, context, volume):
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"""Driver entry point to remove an export for a volume."""
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return
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def initialize_connection(self, volume, connector):
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"""Allow connection to connector and return connection info."""
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info = self.common.initialize_connection(volume, connector)
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return info
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def terminate_connection(self, volume, connector, **kwargs):
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"""Disallow connection from connector."""
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self.common.terminate_connection(volume, connector)
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def get_volume_stats(self, refresh=False):
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"""Get volume stats."""
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pool_name = None
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if refresh is True:
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data, pool_name = self.common.update_volume_stats()
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backend_name = self.configuration.safe_get('volume_backend_name')
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data['volume_backend_name'] = backend_name or 'FJDXISCSIDriver'
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data['storage_protocol'] = constants.ISCSI
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self._stats = data
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LOG.debug('get_volume_stats, '
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'pool name: %s.', pool_name)
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return self._stats
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def extend_volume(self, volume, new_size):
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"""Extend volume."""
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LOG.debug('extend_volume, '
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'volume id: %s, Enter method.', volume['id'])
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used_pool_name = self.common.extend_volume(volume, new_size)
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LOG.debug('extend_volume, '
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'used pool name: %s, Exit method.', used_pool_name)
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