105 lines
3.8 KiB
Python
105 lines
3.8 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import logging
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import json
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from webob.exc import Response
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from heat.common import wsgi
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from heat import context
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from heat.metadata import db as db_api
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from heat.metadata.db import (ConflictError, StackNotFoundError,
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ResourceNotFoundError)
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from heat import rpc
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def json_response(http_status, data):
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"""Create a JSON response with a specific HTTP code."""
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response = Response(json.dumps(data))
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response.status = http_status
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response.content_type = 'application/json'
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return response
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def json_error(http_status, message):
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"""Create a JSON error response."""
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body = {'error': message}
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return json_response(http_status, body)
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class MetadataController:
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def __init__(self, options):
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self.options = options
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def entry_point(self, req):
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return {
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'name': 'Heat Metadata Server API',
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'version': '1',
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}
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def list_stacks(self, req):
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con = context.get_admin_context()
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resp = rpc.call(con, 'engine',
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{'method': 'metadata_list_stacks'})
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return resp
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def list_resources(self, req, stack_name):
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con = context.get_admin_context()
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resources = rpc.call(con, 'engine',
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{'method': 'metadata_list_resources',
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'args': {'stack_name': stack_name}})
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if resources:
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return resources
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else:
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return json_error(404, 'The stack "%s" does not exist.' % stack_name)
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def get_resource(self, req, stack_name, resource_id):
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con = context.get_admin_context()
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[error, metadata] = rpc.call(con, 'engine',
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{'method': 'metadata_get_resource',
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'args': {'stack_name': stack_name,
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'resource_id': resource_id}})
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if error:
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if error == 'stack':
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return json_error(404, 'The stack "%s" does not exist.' % stack_name)
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else:
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return json_error(404, 'The resource "%s" does not exist.' % resource_id)
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return metadata
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def update_metadata(self, req, body, stack_name, resource_id):
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con = context.get_admin_context()
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[error, metadata] = rpc.call(con, 'engine',
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{'method': 'metadata_update',
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'args': {'stack_name': stack_name,
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'resource_id': resource_id,
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'metadata': body}})
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if error:
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if error == 'stack':
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return json_error(404, 'The stack "%s" does not exist.' % stack_name)
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else:
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return json_error(404, 'The resource "%s" does not exist.' % resource_id)
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return json_response(201, {
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'resource': resource_id,
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'metadata': body,
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})
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def create_resource(options):
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"""
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Stacks resource factory method.
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"""
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deserializer = wsgi.JSONRequestDeserializer()
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serializer = wsgi.JSONResponseSerializer()
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return wsgi.Resource(MetadataController(options), deserializer, serializer)
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