171 lines
5.7 KiB
Python
171 lines
5.7 KiB
Python
# Copyright (C) 2014-2015, Hitachi, Ltd.
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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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Fibre channel Cinder volume driver for Hewlett Packard Enterprise storage.
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"""
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from oslo_utils import importutils
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from cinder import interface
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from cinder import utils
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from cinder.volume import driver
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from cinder.volume.drivers.hpe import hpe_xp_opts as opts
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from cinder.zonemanager import utils as fczm_utils
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_DRIVER_DIR = 'cinder.volume.drivers.hpe'
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_DRIVER_CLASS = 'hpe_xp_horcm_fc.HPEXPHORCMFC'
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@interface.volumedriver
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class HPEXPFCDriver(driver.FibreChannelDriver):
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"""OpenStack Fibre Channel driver to enable HPE XP storage."""
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# ThirdPartySystems wiki page
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CI_WIKI_NAME = "XP_Storage_CI"
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def __init__(self, *args, **kwargs):
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"""Initialize the driver."""
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super(HPEXPFCDriver, self).__init__(*args, **kwargs)
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self.configuration.append_config_values(opts.FC_VOLUME_OPTS)
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self.configuration.append_config_values(opts.COMMON_VOLUME_OPTS)
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self.common = importutils.import_object(
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'.'.join([_DRIVER_DIR, _DRIVER_CLASS]),
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self.configuration, 'FC', **kwargs)
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def check_for_setup_error(self):
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"""Setup errors are already checked for in do_setup so return pass."""
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pass
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@utils.trace
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def create_volume(self, volume):
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"""Create a volume."""
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return self.common.create_volume(volume)
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@utils.trace
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def create_volume_from_snapshot(self, volume, snapshot):
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"""Create a volume from a snapshot."""
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return self.common.create_volume_from_snapshot(volume, snapshot)
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@utils.trace
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def create_cloned_volume(self, volume, src_vref):
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"""Create a clone of the specified volume."""
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return self.common.create_cloned_volume(volume, src_vref)
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@utils.trace
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def delete_volume(self, volume):
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"""Delete a volume."""
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self.common.delete_volume(volume)
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@utils.trace
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def create_snapshot(self, snapshot):
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"""Create a snapshot."""
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return self.common.create_snapshot(snapshot)
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@utils.trace
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def delete_snapshot(self, snapshot):
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"""Delete a snapshot."""
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self.common.delete_snapshot(snapshot)
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def local_path(self, volume):
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pass
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@utils.trace
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def get_volume_stats(self, refresh=False):
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"""Get volume stats."""
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return self.common.get_volume_stats(refresh)
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@utils.trace
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def copy_image_to_volume(self, context, volume, image_service, image_id):
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"""Fetch the image from image_service and write it to the volume.
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Call copy_image_to_volume() of super class and
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carry out original postprocessing.
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"""
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super(HPEXPFCDriver, self).copy_image_to_volume(
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context, volume, image_service, image_id)
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self.common.copy_image_to_volume(
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context, volume, image_service, image_id)
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@utils.trace
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def after_volume_copy(self, context, src_vol, dest_vol, remote=None):
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"""Driver-specific actions after copyvolume data.
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This method will be called after _copy_volume_data during volume
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migration
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"""
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self.common.copy_volume_data(context, src_vol, dest_vol, remote)
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@utils.trace
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def restore_backup(self, context, backup, volume, backup_service):
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"""Restore an existing backup to a new or existing volume.
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Call restore_backup() of super class and
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carry out original postprocessing.
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"""
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super(HPEXPFCDriver, self).restore_backup(
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context, backup, volume, backup_service)
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self.common.restore_backup(context, backup, volume, backup_service)
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@utils.trace
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def extend_volume(self, volume, new_size):
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"""Extend a volume."""
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self.common.extend_volume(volume, new_size)
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@utils.trace
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def manage_existing(self, volume, existing_ref):
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"""Manage an existing HPE XP storage volume.
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existing_ref is a dictionary of the form:
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{'ldev': <logical device number on storage>,
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'storage_id': <product number of storage system>}
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"""
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return self.common.manage_existing(volume, existing_ref)
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@utils.trace
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def manage_existing_get_size(self, volume, existing_ref):
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"""Return size of volume for manage_existing."""
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return self.common.manage_existing_get_size(volume, existing_ref)
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def unmanage(self, volume):
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"""Remove the specified volume from Cinder management."""
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self.common.unmanage(volume)
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def do_setup(self, context):
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"""Setup and verify HPE XP storage connection."""
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self.common.do_setup(context)
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def ensure_export(self, context, volume):
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pass
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def create_export(self, context, volume, connector):
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pass
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def remove_export(self, context, volume):
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pass
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@utils.trace
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@fczm_utils.AddFCZone
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def initialize_connection(self, volume, connector):
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"""Attach the volume to an instance."""
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return self.common.initialize_connection(volume, connector)
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@utils.trace
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@fczm_utils.RemoveFCZone
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def terminate_connection(self, volume, connector, **kwargs):
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"""Detach a volume from an instance."""
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return self.common.terminate_connection(volume, connector, **kwargs)
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