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OpenStack Study: flavor_manage.py**** CubicPower OpenStack Study ****
# 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 webob from nova.api.openstack.compute.views import flavors as flavors_view from nova.api.openstack import extensions from nova.api.openstack import wsgi from nova.compute import flavors from nova import exception ALIAS = "flavor-manage" authorize = extensions.extension_authorizer('compute', 'v3:' + ALIAS)
**** CubicPower OpenStack Study **** class FlavorManageController(wsgi.Controller): """The Flavor Lifecycle API controller for the OpenStack API.""" _view_builder_class = flavors_view.V3ViewBuilder
**** CubicPower OpenStack Study **** def __init__(self): super(FlavorManageController, self).__init__() @wsgi.action("delete") @extensions.expected_errors((404))
**** CubicPower OpenStack Study **** def _delete(self, req, id): context = req.environ['nova.context'] authorize(context) try: flavor = flavors.get_flavor_by_flavor_id( id, ctxt=context, read_deleted="no") except exception.FlavorNotFound as e: raise webob.exc.HTTPNotFound(explanation=e.format_message()) flavors.destroy(flavor['name']) return webob.Response(status_int=204) @wsgi.response(201) @wsgi.action("create") @extensions.expected_errors((400, 409))
**** CubicPower OpenStack Study **** def _create(self, req, body): context = req.environ['nova.context'] authorize(context) if not self.is_valid_body(body, 'flavor'): raise webob.exc.HTTPBadRequest('Invalid request body ') vals = body['flavor'] name = vals.get('name') flavorid = vals.get('id') memory = vals.get('ram') vcpus = vals.get('vcpus') root_gb = vals.get('disk') ephemeral_gb = vals.get('ephemeral', 0) swap = vals.get('swap', 0) rxtx_factor = vals.get('os-flavor-rxtx:rxtx_factor', 1.0) is_public = vals.get('flavor-access:is_public', True) try: flavor = flavors.create(name, memory, vcpus, root_gb, ephemeral_gb=ephemeral_gb, flavorid=flavorid, swap=swap, rxtx_factor=rxtx_factor, is_public=is_public) if not flavor['is_public']: flavors.add_flavor_access(flavor['flavorid'], context.project_id, context) req.cache_db_flavor(flavor) except (exception.FlavorExists, exception.FlavorIdExists) as err: raise webob.exc.HTTPConflict(explanation=err.format_message()) except exception.InvalidInput as exc: raise webob.exc.HTTPBadRequest(explanation=exc.format_message()) return self._view_builder.show(req, flavor)
**** CubicPower OpenStack Study **** class FlavorManage(extensions.V3APIExtensionBase): """Flavor create/delete API support.""" name = "FlavorManage" alias = ALIAS version = 1
**** CubicPower OpenStack Study **** def get_controller_extensions(self): controller = FlavorManageController() extension = extensions.ControllerExtension(self, 'flavors', controller) return [extension]
**** CubicPower OpenStack Study **** def get_resources(self): return []
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