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OpenStack Study: deferred_delete.py**** CubicPower OpenStack Study ****
# Copyright 2011 OpenStack Foundation # All Rights Reserved. # # 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. """The deferred instance delete extension.""" import webob from nova.api.openstack import common from nova.api.openstack import extensions from nova.api.openstack import wsgi from nova import compute from nova import exception authorize = extensions.extension_authorizer('compute', 'deferred_delete')
**** CubicPower OpenStack Study **** class DeferredDeleteController(wsgi.Controller):
**** CubicPower OpenStack Study **** def __init__(self, *args, **kwargs): super(DeferredDeleteController, self).__init__(*args, **kwargs) self.compute_api = compute.API() @wsgi.action('restore')
**** CubicPower OpenStack Study **** def _restore(self, req, id, body): """Restore a previously deleted instance.""" context = req.environ["nova.context"] authorize(context) instance = common.get_instance(self.compute_api, context, id, want_objects=True) try: self.compute_api.restore(context, instance) except exception.QuotaError as error: raise webob.exc.HTTPRequestEntityTooLarge( explanation=error.format_message(), headers={'Retry-After': 0}) except exception.InstanceInvalidState as state_error: common.raise_http_conflict_for_instance_invalid_state(state_error, 'restore') return webob.Response(status_int=202) @wsgi.action('forceDelete')
**** CubicPower OpenStack Study **** def _force_delete(self, req, id, body): """Force delete of instance before deferred cleanup.""" context = req.environ["nova.context"] authorize(context) instance = common.get_instance(self.compute_api, context, id, want_objects=True) try: self.compute_api.force_delete(context, instance) except exception.InstanceInvalidState as state_error: common.raise_http_conflict_for_instance_invalid_state(state_error, 'forceDelete') return webob.Response(status_int=202)
**** CubicPower OpenStack Study **** class Deferred_delete(extensions.ExtensionDescriptor): """Instance
**** CubicPower OpenStack Study **** def get_controller_extensions(self): controller = DeferredDeleteController() extension = extensions.ControllerExtension(self, 'servers', controller) return [extension]
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