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OpenStack Study: huawei_hvs.py**** CubicPower OpenStack Study ****
# Copyright (c) 2013 Huawei Technologies Co., Ltd. # Copyright (c) 2013 OpenStack Foundation # All Rights Reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); you may # not use this file except in compliance with the License. You may obtain # a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the # License for the specific language governing permissions and limitations # under the License. """ Volume Drivers for Huawei OceanStor HVS storage arrays. """ from cinder.volume import driver from cinder.volume.drivers.huawei.rest_common import HVSCommon
**** CubicPower OpenStack Study **** class HuaweiHVSISCSIDriver(driver.ISCSIDriver): """ISCSI driver for Huawei OceanStor HVS storage arrays.""" VERSION = '1.0.0'
**** CubicPower OpenStack Study **** def __init__(self, *args, **kwargs): super(HuaweiHVSISCSIDriver, self).__init__(*args, **kwargs)
**** CubicPower OpenStack Study **** def do_setup(self, context): """Instantiate common class and log in storage system.""" self.common = HVSCommon(configuration=self.configuration)
**** CubicPower OpenStack Study **** def check_for_setup_error(self): """Check configuration file.""" self.common._check_conf_file() self.common.login()
**** CubicPower OpenStack Study **** def create_volume(self, volume): """Create a volume.""" self.common.create_volume(volume)
**** CubicPower OpenStack Study **** def create_volume_from_snapshot(self, volume, snapshot): """Create a volume from a snapshot.""" self.common.create_volume_from_snapshot(volume, snapshot)
**** CubicPower OpenStack Study **** def create_cloned_volume(self, volume, src_vref): """Create a clone of the specified volume.""" self.common.create_cloned_volume(volume, src_vref)
**** CubicPower OpenStack Study **** def extend_volume(self, volume, new_size): """Extend a volume.""" self.common.extend_volume(volume, new_size)
**** CubicPower OpenStack Study **** def delete_volume(self, volume): """Delete a volume.""" self.common.delete_volume(volume)
**** CubicPower OpenStack Study **** def create_snapshot(self, snapshot): """Create a snapshot.""" self.common.create_snapshot(snapshot)
**** CubicPower OpenStack Study **** def delete_snapshot(self, snapshot): """Delete a snapshot.""" self.common.delete_snapshot(snapshot)
**** CubicPower OpenStack Study **** def get_volume_stats(self, refresh=False): """Get volume stats.""" data = self.common.update_volume_stats(refresh) backend_name = self.configuration.safe_get('volume_backend_name') data['volume_backend_name'] = backend_name or self.__class__.__name__ data['storage_protocol'] = 'iSCSI' data['driver_version'] = self.VERSION return data
**** CubicPower OpenStack Study **** def initialize_connection(self, volume, connector): """Map a volume to a host.""" return self.common.initialize_connection_iscsi(volume, connector)
**** CubicPower OpenStack Study **** def terminate_connection(self, volume, connector, **kwargs): """Terminate the map.""" self.common.terminate_connection(volume, connector, **kwargs)
**** CubicPower OpenStack Study **** def create_export(self, context, volume): """Export the volume.""" pass
**** CubicPower OpenStack Study **** def ensure_export(self, context, volume): """Synchronously recreate an export for a volume.""" pass
**** CubicPower OpenStack Study **** def remove_export(self, context, volume): """Remove an export for a volume.""" pass
**** CubicPower OpenStack Study **** class HuaweiHVSFCDriver(driver.FibreChannelDriver): """FC driver for Huawei OceanStor HVS storage arrays.""" VERSION = '1.0.0'
**** CubicPower OpenStack Study **** def __init__(self, *args, **kwargs): super(HuaweiHVSFCDriver, self).__init__(*args, **kwargs)
**** CubicPower OpenStack Study **** def do_setup(self, context): """Instantiate common class and log in storage system.""" self.common = HVSCommon(configuration=self.configuration) self.common.login()
**** CubicPower OpenStack Study **** def check_for_setup_error(self): """Check configuration file.""" self.common._check_conf_file()
**** CubicPower OpenStack Study **** def create_volume(self, volume): """Create a volume.""" self.common.create_volume(volume)
**** CubicPower OpenStack Study **** def create_volume_from_snapshot(self, volume, snapshot): """Create a volume from a snapshot.""" self.common.create_volume_from_snapshot(volume, snapshot)
**** CubicPower OpenStack Study **** def create_cloned_volume(self, volume, src_vref): """Create a clone of the specified volume.""" self.common.create_cloned_volume(volume, src_vref)
**** CubicPower OpenStack Study **** def extend_volume(self, volume, new_size): """Extend a volume.""" self.common.extend_volume(volume, new_size)
**** CubicPower OpenStack Study **** def delete_volume(self, volume): """Delete a volume.""" self.common.delete_volume(volume)
**** CubicPower OpenStack Study **** def create_snapshot(self, snapshot): """Create a snapshot.""" self.common.create_snapshot(snapshot)
**** CubicPower OpenStack Study **** def delete_snapshot(self, snapshot): """Delete a snapshot.""" self.common.delete_snapshot(snapshot)
**** CubicPower OpenStack Study **** def get_volume_stats(self, refresh=False): """Get volume stats.""" data = self.common.update_volume_stats(refresh) backend_name = self.configuration.safe_get('volume_backend_name') data['volume_backend_name'] = backend_name or self.__class__.__name__ data['storage_protocol'] = 'FC' data['driver_version'] = self.VERSION return data
**** CubicPower OpenStack Study **** def initialize_connection(self, volume, connector): """Map a volume to a host.""" return self.common.initialize_connection_fc(volume, connector)
**** CubicPower OpenStack Study **** def terminate_connection(self, volume, connector, **kwargs): """Terminate the map.""" self.common.terminate_connection(volume, connector, **kwargs)
**** CubicPower OpenStack Study **** def create_export(self, context, volume): """Export the volume.""" pass
**** CubicPower OpenStack Study **** def ensure_export(self, context, volume): """Synchronously recreate an export for a volume.""" pass
**** CubicPower OpenStack Study **** def remove_export(self, context, volume): """Remove an export for a volume.""" pass
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