489356da3a
This patch adds Cinder model integration. Change-Id: I31d5bc5e2bbed885d074d66bf7999d42cec15f10 Implements: blueprint cinder-model-integration
80 lines
2.6 KiB
Python
80 lines
2.6 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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from oslo_log import log
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from watcher.common import clients
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from watcher.common import exception
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LOG = log.getLogger(__name__)
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class CinderHelper(object):
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def __init__(self, osc=None):
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""":param osc: an OpenStackClients instance"""
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self.osc = osc if osc else clients.OpenStackClients()
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self.cinder = self.osc.cinder()
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def get_storage_node_list(self):
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return list(self.cinder.services.list(binary='cinder-volume'))
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def get_storage_node_by_name(self, name):
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"""Get storage node by name(host@backendname)"""
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try:
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storages = list(filter(lambda storage:
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storage.host == name,
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self.get_storage_node_list()))
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if len(storages) != 1:
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raise exception.StorageNodeNotFound(name=name)
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return storages[0]
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except Exception as exc:
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LOG.exception(exc)
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raise exception.StorageNodeNotFound(name=name)
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def get_storage_pool_list(self):
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return self.cinder.pools.list(detailed=True)
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def get_storage_pool_by_name(self, name):
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"""Get pool by name(host@backend#poolname)"""
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try:
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pools = list(filter(lambda pool:
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pool.name == name,
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self.get_storage_pool_list()))
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if len(pools) != 1:
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raise exception.PoolNotFound(name=name)
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return pools[0]
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except Exception as exc:
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LOG.exception(exc)
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raise exception.PoolNotFound(name=name)
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def get_volume_list(self):
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return self.cinder.volumes.list(search_opts={'all_tenants': True})
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def get_volume_type_list(self):
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return self.cinder.volume_types.list()
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def get_volume_type_by_backendname(self, backendname):
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volume_type_list = self.get_volume_type_list()
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volume_type = list(filter(
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lambda volume_type:
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volume_type.extra_specs.get(
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'volume_backend_name') == backendname, volume_type_list))
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if volume_type:
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return volume_type[0].name
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else:
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return ""
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