heat.api.openstack.v1.actions

Source code for heat.api.openstack.v1.actions

#
#    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.

from webob import exc

from heat.api.openstack.v1 import util
from heat.common.i18n import _
from heat.common import serializers
from heat.common import wsgi
from heat.rpc import client as rpc_client


[docs]class ActionController(object): """WSGI controller for Actions in Heat v1 API. Implements the API for stack actions """ # Define request scope (must match what is in policy.yaml or policies in # code) REQUEST_SCOPE = 'actions' ACTIONS = ( SUSPEND, RESUME, CHECK, CANCEL_UPDATE, CANCEL_WITHOUT_ROLLBACK ) = ( 'suspend', 'resume', 'check', 'cancel_update', 'cancel_without_rollback' ) def __init__(self, options): self.options = options self.rpc_client = rpc_client.EngineClient() # Don't enforce policy on this API, as potentially differing policies # will be enforced on individual actions.
[docs] def action(self, req, tenant_id, stack_name, stack_id, body=None): """Performs a specified action on a stack. The body is expecting to contain exactly one item whose key specifies the action. """ body = body or {} if len(body) < 1: raise exc.HTTPBadRequest(_("No action specified")) if len(body) > 1: raise exc.HTTPBadRequest(_("Multiple actions specified")) ac = next(iter(body.keys())) if ac not in self.ACTIONS: raise exc.HTTPBadRequest(_("Invalid action %s specified") % ac) do_action = getattr(self, ac, None) if do_action is None: raise exc.HTTPInternalServerError(_("Unexpected action %s") % ac) do_action(req, tenant_id=tenant_id, stack_name=stack_name, stack_id=stack_id, body=body)
[docs] @util.registered_identified_stack def suspend(self, req, identity, body=None): self.rpc_client.stack_suspend(req.context, identity)
[docs] @util.registered_identified_stack def resume(self, req, identity, body=None): self.rpc_client.stack_resume(req.context, identity)
[docs] @util.registered_identified_stack def check(self, req, identity, body=None): self.rpc_client.stack_check(req.context, identity)
[docs] @util.registered_identified_stack def cancel_update(self, req, identity, body=None): self.rpc_client.stack_cancel_update(req.context, identity, cancel_with_rollback=True)
[docs] @util.registered_identified_stack def cancel_without_rollback(self, req, identity, body=None): self.rpc_client.stack_cancel_update(req.context, identity, cancel_with_rollback=False)
[docs]def create_resource(options): """Actions action factory method.""" deserializer = wsgi.JSONRequestDeserializer() serializer = serializers.JSONResponseSerializer() return wsgi.Resource(ActionController(options), deserializer, serializer)
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