neutron/neutron/extensions/availability_zone.py

55 lines
1.9 KiB
Python

#
# 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.
import abc
from neutron_lib.api.definitions import availability_zone as az_def
from neutron_lib.api import extensions as api_extensions
from neutron_lib.plugins import directory
from neutron.api import extensions
from neutron.api.v2 import base
class Availability_zone(api_extensions.APIExtensionDescriptor):
"""Availability zone extension."""
api_definition = az_def
@classmethod
def get_resources(cls):
"""Returns Ext Resources."""
plugin = directory.get_plugin()
params = az_def.RESOURCE_ATTRIBUTE_MAP.get(az_def.COLLECTION_NAME)
controller = base.create_resource(az_def.COLLECTION_NAME,
az_def.RESOURCE_NAME, plugin, params)
ex = extensions.ResourceExtension(az_def.COLLECTION_NAME, controller)
return [ex]
class AvailabilityZonePluginBase(object, metaclass=abc.ABCMeta):
"""REST API to operate the Availability Zone."""
@abc.abstractmethod
def get_availability_zones(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None,
page_reverse=False):
"""Return availability zones which a resource belongs to"""
@abc.abstractmethod
def validate_availability_zones(self, context, resource_type,
availability_zones):
"""Verify that the availability zones exist."""