1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# 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 import wsgi
from heat.rpc import client as rpc_client
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.json)
REQUEST_SCOPE = 'actions'
ACTIONS = (SUSPEND, RESUME) = ('suspend', 'resume')
def __init__(self, options):
self.options = options
self.rpc_client = rpc_client.EngineClient()
@util.identified_stack
def action(self, req, identity, body={}):
"""
Performs a specified action on a stack, the body is expecting to
contain exactly one item whose key specifies the action
"""
if len(body) < 1:
raise exc.HTTPBadRequest(_("No action specified"))
if len(body) > 1:
raise exc.HTTPBadRequest(_("Multiple actions specified"))
ac = body.keys()[0]
if ac not in self.ACTIONS:
raise exc.HTTPBadRequest(_("Invalid action %s specified") % ac)
if ac == self.SUSPEND:
self.rpc_client.stack_suspend(req.context, identity)
elif ac == self.RESUME:
self.rpc_client.stack_resume(req.context, identity)
else:
raise exc.HTTPInternalServerError(_("Unexpected action %s") % ac)
def create_resource(options):
"""
Actions action factory method.
"""
deserializer = wsgi.JSONRequestDeserializer()
serializer = wsgi.JSONResponseSerializer()
return wsgi.Resource(ActionController(options), deserializer, serializer)
|
