181 lines
7.8 KiB
Python
181 lines
7.8 KiB
Python
# Copyright (c) 2014 Montavista Software, LLC.
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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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"""Schema version history
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version: 2.1
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date: 2016-03-27
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changes:
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- Added columns to the volumes table: encrypted, availability_zone,
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replication_status, multiattach, snapshot_id, source_volid,
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consistencygroup_id, migration_status
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- Added the attachments table for volume attachment information.
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version: 2.0
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Initial schema version.
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"""
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from __future__ import print_function
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from __future__ import division
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from __future__ import absolute_import
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import cinderclient.client
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from congress.datasources import constants
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from congress.datasources import datasource_driver
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from congress.datasources import datasource_utils as ds_utils
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class CinderDriver(datasource_driver.PollingDataSourceDriver,
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datasource_driver.ExecutionDriver):
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VOLUMES = "volumes"
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ATTACHMENTS = "attachments"
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SNAPSHOTS = "snapshots"
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SERVICES = "services"
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# This is the most common per-value translator, so define it once here.
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value_trans = {'translation-type': 'VALUE'}
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volumes_translator = {
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'translation-type': 'HDICT',
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'table-name': VOLUMES,
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'selector-type': 'DOT_SELECTOR',
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'field-translators':
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({'fieldname': 'id', 'translator': value_trans},
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{'fieldname': 'size', 'translator': value_trans},
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{'fieldname': 'user_id', 'translator': value_trans},
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{'fieldname': 'status', 'translator': value_trans},
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{'fieldname': 'description', 'translator': value_trans},
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{'fieldname': 'name', 'translator': value_trans},
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{'fieldname': 'bootable', 'translator': value_trans},
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{'fieldname': 'created_at', 'translator': value_trans},
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{'fieldname': 'volume_type', 'translator': value_trans},
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{'fieldname': 'encrypted', 'translator': value_trans},
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{'fieldname': 'availability_zone', 'translator': value_trans},
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{'fieldname': 'replication_status', 'translator': value_trans},
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{'fieldname': 'multiattach', 'translator': value_trans},
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{'fieldname': 'snapshot_id', 'translator': value_trans},
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{'fieldname': 'source_volid', 'translator': value_trans},
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{'fieldname': 'consistencygroup_id', 'translator': value_trans},
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{'fieldname': 'migration_status', 'translator': value_trans},
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{'fieldname': 'attachments',
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'translator': {'translation-type': 'HDICT',
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'table-name': ATTACHMENTS,
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'parent-key': 'id',
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'parent-col-name': 'volume_id',
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'parent-key-desc': 'UUID of volume',
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'selector-type': 'DICT_SELECTOR',
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'in-list': True,
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'field-translators':
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({'fieldname': 'server_id',
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'translator': value_trans},
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{'fieldname': 'attachment_id',
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'translator': value_trans},
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{'fieldname': 'host_name',
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'translator': value_trans},
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{'fieldname': 'device',
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'translator': value_trans})}}
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)}
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snapshots_translator = {
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'translation-type': 'HDICT',
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'table-name': SNAPSHOTS,
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'selector-type': 'DOT_SELECTOR',
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'field-translators':
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({'fieldname': 'id', 'translator': value_trans},
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{'fieldname': 'size', 'translator': value_trans},
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{'fieldname': 'status', 'translator': value_trans},
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{'fieldname': 'volume_id', 'translator': value_trans},
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{'fieldname': 'name', 'translator': value_trans},
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{'fieldname': 'created_at', 'translator': value_trans})}
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services_translator = {
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'translation-type': 'HDICT',
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'table-name': SERVICES,
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'selector-type': 'DOT_SELECTOR',
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'field-translators':
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({'fieldname': 'status', 'translator': value_trans},
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{'fieldname': 'binary', 'translator': value_trans},
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{'fieldname': 'zone', 'translator': value_trans},
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{'fieldname': 'state', 'translator': value_trans},
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{'fieldname': 'updated_at', 'translator': value_trans},
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{'fieldname': 'host', 'translator': value_trans},
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{'fieldname': 'disabled_reason', 'translator': value_trans})}
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TRANSLATORS = [volumes_translator, snapshots_translator,
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services_translator]
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def __init__(self, name='', args=None):
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super(CinderDriver, self).__init__(name, args=args)
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datasource_driver.ExecutionDriver.__init__(self)
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session = ds_utils.get_keystone_session(args)
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self.cinder_client = cinderclient.client.Client(version='2',
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session=session)
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self.add_executable_client_methods(self.cinder_client,
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'cinderclient.v2.')
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self.initialize_update_method()
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self._init_end_start_poll()
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@staticmethod
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def get_datasource_info():
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result = {}
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result['id'] = 'cinder'
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result['description'] = ('Datasource driver that interfaces with '
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'OpenStack cinder.')
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result['config'] = ds_utils.get_openstack_required_config()
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result['config']['lazy_tables'] = constants.OPTIONAL
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result['secret'] = ['password']
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return result
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def initialize_update_method(self):
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volumes_method = lambda: self._translate_volumes(
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self.cinder_client.volumes.list(detailed=True,
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search_opts={'all_tenants': 1}))
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self.add_update_method(volumes_method, self.volumes_translator)
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snapshots_method = lambda: self._translate_snapshots(
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self.cinder_client.volume_snapshots.list(
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detailed=True, search_opts={'all_tenants': 1}))
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self.add_update_method(snapshots_method, self.snapshots_translator)
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services_method = lambda: self._translate_services(
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self.cinder_client.services.list(host=None, binary=None))
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self.add_update_method(services_method, self.services_translator)
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@ds_utils.update_state_on_changed(VOLUMES)
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def _translate_volumes(self, obj):
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row_data = CinderDriver.convert_objs(obj, self.volumes_translator)
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return row_data
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@ds_utils.update_state_on_changed(SNAPSHOTS)
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def _translate_snapshots(self, obj):
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row_data = CinderDriver.convert_objs(obj, self.snapshots_translator)
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return row_data
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@ds_utils.update_state_on_changed(SERVICES)
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def _translate_services(self, obj):
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row_data = CinderDriver.convert_objs(obj, self.services_translator)
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return row_data
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def execute(self, action, action_args):
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"""Overwrite ExecutionDriver.execute()."""
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# action can be written as a method or an API call.
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func = getattr(self, action, None)
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if func and self.is_executable(func):
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func(action_args)
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else:
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self._execute_api(self.cinder_client, action, action_args)
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