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OpenStack Study: hp_msa_fc.py**** CubicPower OpenStack Study ****
# Copyright 2014 Objectif Libre # # 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. # from cinder.openstack.common import log as logging from cinder import utils import cinder.volume.driver from cinder.volume.drivers.san.hp import hp_msa_common as hpcommon from cinder.volume.drivers.san import san LOG = logging.getLogger(__name__)
**** CubicPower OpenStack Study **** class HPMSAFCDriver(cinder.volume.driver.FibreChannelDriver): VERSION = "0.1"
**** CubicPower OpenStack Study **** def __init__(self, *args, **kwargs): super(HPMSAFCDriver, self).__init__(*args, **kwargs) self.common = None self.configuration.append_config_values(hpcommon.hpmsa_opt) self.configuration.append_config_values(san.san_opts)
**** CubicPower OpenStack Study **** def _init_common(self): return hpcommon.HPMSACommon(self.configuration)
**** CubicPower OpenStack Study **** def _check_flags(self): required_flags = ['san_ip', 'san_login', 'san_password'] self.common.check_flags(self.configuration, required_flags)
**** CubicPower OpenStack Study **** def do_setup(self, context): self.common = self._init_common() self._check_flags() self.common.do_setup(context)
**** CubicPower OpenStack Study **** def check_for_setup_error(self): self._check_flags() @utils.synchronized('msa', external=True)
**** CubicPower OpenStack Study **** def create_volume(self, volume): self.common.client_login() try: metadata = self.common.create_volume(volume) return {'metadata': metadata} finally: self.common.client_logout() @utils.synchronized('msa', external=True)
**** CubicPower OpenStack Study **** def create_volume_from_snapshot(self, volume, src_vref): self.common.client_login() try: self.common.create_volume_from_snapshot(volume, src_vref) finally: self.common.client_logout() @utils.synchronized('msa', external=True)
**** CubicPower OpenStack Study **** def create_cloned_volume(self, volume, src_vref): self.common.client_login() try: new_vol = self.common.create_cloned_volume(volume, src_vref) return {'metadata': new_vol} finally: self.common.client_logout() @utils.synchronized('msa', external=True)
**** CubicPower OpenStack Study **** def delete_volume(self, volume): self.common.client_login() try: self.common.delete_volume(volume) finally: self.common.client_logout() @utils.synchronized('msa', external=True)
**** CubicPower OpenStack Study **** def initialize_connection(self, volume, connector): self.common.client_login() try: data = {} data['target_lun'] = self.common.map_volume(volume, connector) ports = self.common.get_active_fc_target_ports() data['target_discovered'] = True data['target_wwn'] = ports info = {'driver_volume_type': 'fibre_channel', 'data': data} return info finally: self.common.client_logout() @utils.synchronized('msa', external=True)
**** CubicPower OpenStack Study **** def terminate_connection(self, volume, connector, **kwargs): self.common.client_login() try: self.common.unmap_volume(volume, connector) finally: self.common.client_logout() @utils.synchronized('msa', external=True)
**** CubicPower OpenStack Study **** def get_volume_stats(self, refresh=False): if refresh: self.common.client_login() try: stats = self.common.get_volume_stats(refresh) stats['storage_protocol'] = 'FC' stats['driver_version'] = self.VERSION backend_name = self.configuration.safe_get('volume_backend_name') stats['volume_backend_name'] = (backend_name or self.__class__.__name__) return stats finally: if refresh: self.common.client_logout() @utils.synchronized('msa', external=True)
**** CubicPower OpenStack Study **** def create_export(self, context, volume): pass @utils.synchronized('msa', external=True)
**** CubicPower OpenStack Study **** def ensure_export(self, context, volume): pass @utils.synchronized('msa', external=True)
**** CubicPower OpenStack Study **** def remove_export(self, context, volume): pass @utils.synchronized('msa', external=True)
**** CubicPower OpenStack Study **** def create_snapshot(self, snapshot): self.common.client_login() try: self.common.create_snapshot(snapshot) finally: self.common.client_logout() @utils.synchronized('msa', external=True)
**** CubicPower OpenStack Study **** def delete_snapshot(self, snapshot): self.common.client_login() try: self.common.delete_snapshot(snapshot) finally: self.common.client_logout() @utils.synchronized('msa', external=True)
**** CubicPower OpenStack Study **** def extend_volume(self, volume, new_size): self.common.client_login() try: self.common.extend_volume(volume, new_size) finally: self.common.client_logout()
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