174 lines
5.3 KiB
Python
174 lines
5.3 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2010 OpenStack LLC.
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# All Rights Reserved.
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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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"""
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/stack endpoint for heat v1 API
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"""
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import httplib
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import json
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import logging
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import sys
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import webob
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from webob.exc import (HTTPNotFound,
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HTTPConflict,
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HTTPBadRequest)
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from heat.common import exception
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from heat.common import wsgi
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logger = logging.getLogger('heat.api.v1.stacks')
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stack_db = {}
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class StackController(object):
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"""
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WSGI controller for stacks resource in heat v1 API
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"""
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def __init__(self, options):
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self.options = options
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self.stack_id = 1
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def list(self, req):
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"""
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Returns the following information for all stacks:
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"""
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res = {'ListStacksResponse': {'ListStacksResult': {'StackSummaries': [] } } }
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summaries = res['ListStacksResponse']['ListStacksResult']['StackSummaries']
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for s in stack_db:
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mem = {}
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mem['StackId'] = stack_db[s]['StackId']
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mem['StackStatus'] = 'happy'
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mem['StackName'] = s
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mem['CreationTime'] = 'now'
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try:
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mem['TemplateDescription'] = stack_db[s]['Description']
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except:
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mem['TemplateDescription'] = 'No description'
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summaries.append(mem)
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return res
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def describe(self, req):
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stack_name = None
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if req.params.has_key('StackName'):
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stack_name = req.params['StackName']
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if not stack_db.has_key(stack_name):
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msg = _("Stack does not exist with that name.")
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return webob.exc.HTTPNotFound(msg)
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res = {'DescribeStacksResult': {'Stacks': [] } }
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summaries = res['DescribeStacksResult']['Stacks']
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for s in stack_db:
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if stack_name is None or s == stack_name:
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mem = {}
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mem['StackId'] = stack_db[s]['StackId']
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mem['StackStatus'] = stack_db[s]['StackStatus']
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mem['StackName'] = s
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mem['CreationTime'] = 'now'
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mem['DisableRollback'] = 'false'
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mem['Outputs'] = '[]'
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summaries.append(mem)
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return res
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def _get_template(self, req):
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if req.params.has_key('TemplateBody'):
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return req.params['TemplateBody']
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elif req.params.has_key('TemplateUrl'):
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# TODO _do_request() ...
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pass
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return None
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def _apply_user_parameters(self, req, stack):
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# TODO
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pass
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def create(self, req):
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"""
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:param req: The WSGI/Webob Request object
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:raises HttpBadRequest if not template is given
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:raises HttpConflict if object already exists
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"""
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if stack_db.has_key(req.params['StackName']):
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msg = _("Stack already exists with that name.")
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return exc.HTTPConflict(msg)
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templ = self._get_template(req)
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if templ is None:
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msg = _("TemplateBody or TemplateUrl were not given.")
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return exc.HTTPBadRequest(explanation=msg)
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stack = json.loads(templ)
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my_id = '%s-%d' % (req.params['StackName'], self.stack_id)
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self.stack_id = self.stack_id + 1
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stack['StackId'] = my_id
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stack['StackStatus'] = 'CREATE_COMPLETE'
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self._apply_user_parameters(req, stack)
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stack_db[req.params['StackName']] = stack
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return {'CreateStackResult': {'StackId': my_id}}
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def update(self, req):
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"""
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:param req: The WSGI/Webob Request object
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:raises HttpNotFound if object is not available
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"""
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if not stack_db.has_key(req.params['StackName']):
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msg = _("Stack does not exist with that name.")
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return exc.HTTPNotFound(msg)
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stack = stack_db[req.params['StackName']]
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my_id = stack['StackId']
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templ = self._get_template(req)
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if templ:
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stack = json.loads(templ)
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stack['StackId'] = my_id
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stack_db[req.params['StackName']] = stack
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self._apply_user_parameters(req, stack)
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stack['StackStatus'] = 'UPDATE_COMPLETE'
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return {'UpdateStackResult': {'StackId': my_id}}
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def delete(self, req):
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"""
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Deletes the object and all its resources
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:param req: The WSGI/Webob Request object
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:raises HttpBadRequest if the request is invalid
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:raises HttpNotFound if object is not available
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:raises HttpNotAuthorized if object is not
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deleteable by the requesting user
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"""
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def create_resource(options):
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"""Stacks resource factory method"""
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deserializer = wsgi.JSONRequestDeserializer()
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serializer = wsgi.JSONResponseSerializer()
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return wsgi.Resource(StackController(options), deserializer, serializer)
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