heat.engine.clients.os.cinder

Source code for heat.engine.clients.os.cinder

#
#    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 cinderclient import client as cc
from cinderclient import exceptions
from keystoneauth1 import exceptions as ks_exceptions
from oslo_log import log as logging

from heat.common import exception
from heat.common.i18n import _
from heat.engine.clients import client_plugin
from heat.engine.clients import os as os_client
from heat.engine import constraints


LOG = logging.getLogger(__name__)

CLIENT_NAME = 'cinder'


[docs]class CinderClientPlugin(client_plugin.ClientPlugin): exceptions_module = exceptions service_types = [VOLUME_V2, VOLUME_V3] = ['volumev2', 'volumev3']
[docs] def get_volume_api_version(self): '''Returns the most recent API version.''' self.interface = self._get_client_option(CLIENT_NAME, 'endpoint_type') try: self.context.keystone_session.get_endpoint( service_type=self.VOLUME_V3, interface=self.interface) self.service_type = self.VOLUME_V3 self.client_version = '3' except ks_exceptions.EndpointNotFound: try: self.context.keystone_session.get_endpoint( service_type=self.VOLUME_V2, interface=self.interface) self.service_type = self.VOLUME_V2 self.client_version = '2' except ks_exceptions.EndpointNotFound: raise exception.Error(_('No volume service available.'))
def _create(self): self.get_volume_api_version() extensions = cc.discover_extensions(self.client_version) args = { 'session': self.context.keystone_session, 'extensions': extensions, 'interface': self.interface, 'service_type': self.service_type, 'region_name': self._get_region_name(), 'http_log_debug': self._get_client_option(CLIENT_NAME, 'http_log_debug') } client = cc.Client(self.client_version, **args) return client @os_client.MEMOIZE_EXTENSIONS def _list_extensions(self): extensions = self.client().list_extensions.show_all() return set(extension.alias for extension in extensions)
[docs] def has_extension(self, alias): """Check if specific extension is present.""" return alias in self._list_extensions()
[docs] def get_volume(self, volume): try: return self.client().volumes.get(volume) except exceptions.NotFound: raise exception.EntityNotFound(entity='Volume', name=volume)
[docs] def get_volume_snapshot(self, snapshot): try: return self.client().volume_snapshots.get(snapshot) except exceptions.NotFound: raise exception.EntityNotFound(entity='VolumeSnapshot', name=snapshot)
[docs] def get_volume_backup(self, backup): try: return self.client().backups.get(backup) except exceptions.NotFound: raise exception.EntityNotFound(entity='Volume backup', name=backup)
[docs] def get_volume_type(self, volume_type): vt_id = None volume_type_list = self.client().volume_types.list() for vt in volume_type_list: if volume_type in [vt.name, vt.id]: vt_id = vt.id break if vt_id is None: raise exception.EntityNotFound(entity='VolumeType', name=volume_type) return vt_id
[docs] def get_qos_specs(self, qos_specs): try: qos = self.client().qos_specs.get(qos_specs) except exceptions.NotFound: qos = self.client().qos_specs.find(name=qos_specs) return qos.id
[docs] def is_not_found(self, ex): return isinstance(ex, exceptions.NotFound)
[docs] def is_over_limit(self, ex): return isinstance(ex, exceptions.OverLimit)
[docs] def is_conflict(self, ex): return (isinstance(ex, exceptions.ClientException) and ex.code == 409)
[docs] def check_detach_volume_complete(self, vol_id, server_id=None): try: vol = self.client().volumes.get(vol_id) except Exception as ex: self.ignore_not_found(ex) return True server_ids = [ a['server_id'] for a in vol.attachments if 'server_id' in a] if server_id and server_id not in server_ids: return True if vol.status in ('in-use', 'detaching'): LOG.debug('%s - volume still in use', vol_id) return False LOG.debug('Volume %(id)s - status: %(status)s', { 'id': vol.id, 'status': vol.status}) if vol.status not in ('available', 'deleting'): LOG.debug("Detachment failed - volume %(vol)s " "is in %(status)s status", {"vol": vol.id, "status": vol.status}) raise exception.ResourceUnknownStatus( resource_status=vol.status, result=_('Volume detachment failed')) else: return True
[docs] def check_attach_volume_complete(self, vol_id): vol = self.client().volumes.get(vol_id) if vol.status in ('available', 'attaching', 'reserved'): LOG.debug("Volume %(id)s is being attached - " "volume status: %(status)s", {'id': vol_id, 'status': vol.status}) return False if vol.status != 'in-use': LOG.debug("Attachment failed - volume %(vol)s is " "in %(status)s status", {"vol": vol_id, "status": vol.status}) raise exception.ResourceUnknownStatus( resource_status=vol.status, result=_('Volume attachment failed')) LOG.info('Attaching volume %(id)s complete', {'id': vol_id}) return True
[docs]class BaseCinderConstraint(constraints.BaseCustomConstraint): resource_client_name = CLIENT_NAME
[docs]class VolumeConstraint(BaseCinderConstraint): resource_getter_name = 'get_volume'
[docs]class VolumeSnapshotConstraint(BaseCinderConstraint): resource_getter_name = 'get_volume_snapshot'
[docs]class VolumeTypeConstraint(BaseCinderConstraint): resource_getter_name = 'get_volume_type'
[docs]class VolumeBackupConstraint(BaseCinderConstraint): resource_getter_name = 'get_volume_backup'
[docs]class QoSSpecsConstraint(BaseCinderConstraint): expected_exceptions = (exceptions.NotFound,) resource_getter_name = 'get_qos_specs'
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