133 lines
5.5 KiB
Python
133 lines
5.5 KiB
Python
# 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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import six
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from karbor.common import constants
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from karbor import exception
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from karbor import resource
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from karbor.services.protection.client_factory import ClientFactory
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from karbor.services.protection import protectable_plugin
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from oslo_log import log as logging
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LOG = logging.getLogger(__name__)
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INVALID_IMAGE_STATUS = ['killed', 'deleted', 'pending_delete',
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'deactivated']
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class ImageProtectablePlugin(protectable_plugin.ProtectablePlugin):
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"""Glance image protectable plugin"""
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_SUPPORT_RESOURCE_TYPE = constants.IMAGE_RESOURCE_TYPE
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def _glance_client(self, context):
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self._glance_client_instance = ClientFactory.create_client(
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'glance', context)
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return self._glance_client_instance
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def _nova_client(self, context):
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self._nova_client_instance = ClientFactory.create_client(
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'nova', context)
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return self._nova_client_instance
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def get_resource_type(self):
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return self._SUPPORT_RESOURCE_TYPE
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def get_parent_resource_types(self):
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return (constants.SERVER_RESOURCE_TYPE,
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constants.PROJECT_RESOURCE_TYPE,)
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def list_resources(self, context, parameters=None):
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try:
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images = self._glance_client(context).images.list()
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except Exception as e:
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LOG.exception("List all images from glance failed.")
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raise exception.ListProtectableResourceFailed(
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type=self._SUPPORT_RESOURCE_TYPE,
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reason=six.text_type(e))
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else:
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return [resource.Resource(type=self._SUPPORT_RESOURCE_TYPE,
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id=image.id, name=image.name)
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for image in images
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if image.status not in INVALID_IMAGE_STATUS]
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def _get_dependent_resources_by_server(self,
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context,
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parent_resource):
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try:
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server = self._nova_client(context).servers.get(parent_resource.id)
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except Exception as e:
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LOG.exception("List all server from nova failed.")
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raise exception.ListProtectableResourceFailed(
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type=self._SUPPORT_RESOURCE_TYPE,
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reason=six.text_type(e))
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if not server.image:
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return []
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try:
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image = self._glance_client(context).images.get(server.image['id'])
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except Exception as e:
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LOG.exception("Getting image from glance failed.")
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raise exception.ListProtectableResourceFailed(
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type=self._SUPPORT_RESOURCE_TYPE,
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reason=six.text_type(e))
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return [resource.Resource(type=self._SUPPORT_RESOURCE_TYPE,
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id=server.image['id'],
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name=image.name,
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extra_info={'server_id': server.id})]
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def _get_dependent_resources_by_project(self,
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context,
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parent_resource):
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try:
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images = self._glance_client(context).images.list()
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except Exception as e:
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LOG.exception("List all images from glance failed.")
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raise exception.ListProtectableResourceFailed(
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type=self._SUPPORT_RESOURCE_TYPE,
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reason=six.text_type(e))
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else:
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return [resource.Resource(type=self._SUPPORT_RESOURCE_TYPE,
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id=image.id,
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name=image.name)
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for image in images
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if image.owner == parent_resource.id
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and image.status not in INVALID_IMAGE_STATUS]
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def show_resource(self, context, resource_id, parameters=None):
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try:
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image = self._glance_client(context).images.get(resource_id)
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except Exception as e:
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LOG.exception("Show a image from glance failed.")
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raise exception.ProtectableResourceNotFound(
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id=resource_id,
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type=self._SUPPORT_RESOURCE_TYPE,
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reason=six.text_type(e))
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else:
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if image.status in INVALID_IMAGE_STATUS:
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raise exception.ProtectableResourceInvalidStatus(
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id=image.id, type=self._SUPPORT_RESOURCE_TYPE,
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status=image.status)
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return resource.Resource(type=self._SUPPORT_RESOURCE_TYPE,
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id=image.id, name=image.name)
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def get_dependent_resources(self, context, parent_resource):
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if parent_resource.type == constants.SERVER_RESOURCE_TYPE:
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return self._get_dependent_resources_by_server(context,
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parent_resource)
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if parent_resource.type == constants.PROJECT_RESOURCE_TYPE:
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return self._get_dependent_resources_by_project(context,
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parent_resource)
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return []
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