OpenStack Orchestration (Heat)
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heat/heat/api/openstack/v1/__init__.py

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16 KiB

#
# 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 routes
import six
from heat.api.openstack.v1 import actions
from heat.api.openstack.v1 import build_info
from heat.api.openstack.v1 import events
from heat.api.openstack.v1 import resources
from heat.api.openstack.v1 import services
from heat.api.openstack.v1 import software_configs
from heat.api.openstack.v1 import software_deployments
from heat.api.openstack.v1 import stacks
from heat.common import wsgi
class API(wsgi.Router):
"""
WSGI router for Heat v1 ReST API requests.
"""
def __init__(self, conf, **local_conf):
self.conf = conf
mapper = routes.Mapper()
default_resource = wsgi.Resource(wsgi.DefaultMethodController(),
wsgi.JSONRequestDeserializer())
def connect(controller, path_prefix, routes):
"""
This function connects the list of routes to the given
controller, prepending the given path_prefix. Then for each URL it
finds which request methods aren't handled and configures those
to return a 405 error. Finally, it adds a handler for the
OPTIONS method to all URLs that returns the list of allowed
methods with 204 status code.
"""
# register the routes with the mapper, while keeping track of which
# methods are defined for each URL
urls = {}
for r in routes:
url = path_prefix + r['url']
methods = r['method']
if isinstance(methods, six.string_types):
methods = [methods]
methods_str = ','.join(methods)
mapper.connect(r['name'], url, controller=controller,
action=r['action'],
conditions={'method': methods_str})
if url not in urls:
urls[url] = methods
else:
urls[url] += methods
# now register the missing methods to return 405s, and register
# a handler for OPTIONS that returns the list of allowed methods
for url, methods in urls.items():
all_methods = ['HEAD', 'GET', 'POST', 'PUT', 'PATCH', 'DELETE']
missing_methods = [m for m in all_methods if m not in methods]
allowed_methods_str = ','.join(methods)
mapper.connect(url,
controller=default_resource,
action='reject',
allowed_methods=allowed_methods_str,
conditions={'method': missing_methods})
if 'OPTIONS' not in methods:
mapper.connect(url,
controller=default_resource,
action='options',
allowed_methods=allowed_methods_str,
conditions={'method': 'OPTIONS'})
# Stacks
stacks_resource = stacks.create_resource(conf)
connect(controller=stacks_resource,
path_prefix='/{tenant_id}',
routes=[
# Template handling
{
'name': 'template_validate',
'url': '/validate',
'action': 'validate_template',
'method': 'POST'
},
{
'name': 'resource_types',
'url': '/resource_types',
'action': 'list_resource_types',
'method': 'GET'
},
{
'name': 'resource_schema',
'url': '/resource_types/{type_name}',
'action': 'resource_schema',
'method': 'GET'
},
{
'name': 'generate_template',
'url': '/resource_types/{type_name}/template',
'action': 'generate_template',
'method': 'GET'
},
{
'name': 'template_versions',
'url': '/template_versions',
'action': 'list_template_versions',
'method': 'GET'
},
# Stack collection
{
'name': 'stack_index',
'url': '/stacks',
'action': 'index',
'method': 'GET'
},
{
'name': 'stack_create',
'url': '/stacks',
'action': 'create',
'method': 'POST'
},
{
'name': 'stack_preview',
'url': '/stacks/preview',
'action': 'preview',
'method': 'POST'
},
{
'name': 'stack_detail',
'url': '/stacks/detail',
'action': 'detail',
'method': 'GET'
},
# Stack data
{
'name': 'stack_lookup',
'url': '/stacks/{stack_name}',
'action': 'lookup',
'method': ['GET', 'POST', 'PUT', 'PATCH', 'DELETE']
},
# \x3A matches on a colon.
# Routes treats : specially in its regexp
{
'name': 'stack_lookup',
'url': r'/stacks/{stack_name:arn\x3A.*}',
'action': 'lookup',
'method': ['GET', 'POST', 'PUT', 'PATCH', 'DELETE']
},
{
'name': 'stack_lookup_subpath',
'url': '/stacks/{stack_name}/'
'{path:resources|events|template|actions}',
'action': 'lookup',
'method': 'GET'
},
{
'name': 'stack_lookup_subpath_post',
'url': '/stacks/{stack_name}/'
'{path:resources|events|template|actions}',
'action': 'lookup',
'method': 'POST'
},
{
'name': 'stack_show',
'url': '/stacks/{stack_name}/{stack_id}',
'action': 'show',
'method': 'GET'
},
{
'name': 'stack_lookup',
'url': '/stacks/{stack_name}/{stack_id}/template',
'action': 'template',
'method': 'GET'
},
# Stack update/delete
{
'name': 'stack_update',
'url': '/stacks/{stack_name}/{stack_id}',
'action': 'update',
'method': 'PUT'
},
{
'name': 'stack_update_patch',
'url': '/stacks/{stack_name}/{stack_id}',
'action': 'update_patch',
'method': 'PATCH'
},
{
'name': 'stack_delete',
'url': '/stacks/{stack_name}/{stack_id}',
'action': 'delete',
'method': 'DELETE'
},
# Stack abandon
{
'name': 'stack_abandon',
'url': '/stacks/{stack_name}/{stack_id}/abandon',
'action': 'abandon',
'method': 'DELETE'
},
{
'name': 'stack_snapshot',
'url': '/stacks/{stack_name}/{stack_id}/snapshots',
'action': 'snapshot',
'method': 'POST'
},
{
'name': 'stack_snapshot_show',
'url': '/stacks/{stack_name}/{stack_id}/snapshots/'
'{snapshot_id}',
'action': 'show_snapshot',
'method': 'GET'
},
{
'name': 'stack_snapshot_delete',
'url': '/stacks/{stack_name}/{stack_id}/snapshots/'
'{snapshot_id}',
'action': 'delete_snapshot',
'method': 'DELETE'
},
{
'name': 'stack_list_snapshots',
'url': '/stacks/{stack_name}/{stack_id}/snapshots',
'action': 'list_snapshots',
'method': 'GET'
},
{
'name': 'stack_snapshot_restore',
'url': '/stacks/{stack_name}/{stack_id}/snapshots/'
'{snapshot_id}/restore',
'action': 'restore_snapshot',
'method': 'POST'
}
])
# Resources
resources_resource = resources.create_resource(conf)
stack_path = '/{tenant_id}/stacks/{stack_name}/{stack_id}'
connect(controller=resources_resource, path_prefix=stack_path,
routes=[
# Resource collection
{
'name': 'resource_index',
'url': '/resources',
'action': 'index',
'method': 'GET'
},
# Resource data
{
'name': 'resource_show',
'url': '/resources/{resource_name}',
'action': 'show',
'method': 'GET'
},
{
'name': 'resource_metadata_show',
'url': '/resources/{resource_name}/metadata',
'action': 'metadata',
'method': 'GET'
},
{
'name': 'resource_signal',
'url': '/resources/{resource_name}/signal',
'action': 'signal',
'method': 'POST'
}
])
# Events
events_resource = events.create_resource(conf)
connect(controller=events_resource, path_prefix=stack_path,
routes=[
# Stack event collection
{
'name': 'event_index_stack',
'url': '/events',
'action': 'index',
'method': 'GET'
},
# Resource event collection
{
'name': 'event_index_resource',
'url': '/resources/{resource_name}/events',
'action': 'index',
'method': 'GET'
},
# Event data
{
'name': 'event_show',
'url': '/resources/{resource_name}/events/{event_id}',
'action': 'show',
'method': 'GET'
}
])
# Actions
actions_resource = actions.create_resource(conf)
connect(controller=actions_resource, path_prefix=stack_path,
routes=[
{
'name': 'action_stack',
'url': '/actions',
'action': 'action',
'method': 'POST'
}
])
# Info
info_resource = build_info.create_resource(conf)
connect(controller=info_resource, path_prefix='/{tenant_id}',
routes=[
{
'name': 'build_info',
'url': '/build_info',
'action': 'build_info',
'method': 'GET'
}
])
# Software configs
software_config_resource = software_configs.create_resource(conf)
connect(controller=software_config_resource,
path_prefix='/{tenant_id}/software_configs',
routes=[
{
'name': 'software_config_index',
'url': '',
'action': 'index',
'method': 'GET'
},
{
'name': 'software_config_create',
'url': '',
'action': 'create',
'method': 'POST'
},
{
'name': 'software_config_show',
'url': '/{config_id}',
'action': 'show',
'method': 'GET'
},
{
'name': 'software_config_delete',
'url': '/{config_id}',
'action': 'delete',
'method': 'DELETE'
}
])
# Software deployments
sd_resource = software_deployments.create_resource(conf)
connect(controller=sd_resource,
path_prefix='/{tenant_id}/software_deployments',
routes=[
{
'name': 'software_deployment_index',
'url': '',
'action': 'index',
'method': 'GET'
},
{
'name': 'software_deployment_metadata',
'url': '/metadata/{server_id}',
'action': 'metadata',
'method': 'GET'
},
{
'name': 'software_deployment_create',
'url': '',
'action': 'create',
'method': 'POST'
},
{
'name': 'software_deployment_show',
'url': '/{deployment_id}',
'action': 'show',
'method': 'GET'
},
{
'name': 'software_deployment_update',
'url': '/{deployment_id}',
'action': 'update',
'method': 'PUT'
},
{
'name': 'software_deployment_delete',
'url': '/{deployment_id}',
'action': 'delete',
'method': 'DELETE'
}
])
# Services
service_resource = services.create_resource(conf)
with mapper.submapper(
controller=service_resource,
path_prefix='/{tenant_id}/services'
) as sa_mapper:
sa_mapper.connect("service_index",
"",
action="index",
conditions={'method': 'GET'})
# now that all the routes are defined, add a handler for
super(API, self).__init__(mapper)