aodh/ceilometer/api/app.py
Angus Salkeld fa6bdc284c Start both v1 and v2 api from one daemon.
- Move bin/ceilometer-api-v2 to bin/ceilometer-api
- use VersionSelectorApplication() as the base application.

bug #1086381
Change-Id: Ia74938eb351fc374450932a91b21c0755afca2e5
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
2013-03-08 15:28:25 +11:00

89 lines
2.7 KiB
Python

# -*- encoding: utf-8 -*-
#
# Copyright © 2012 New Dream Network, LLC (DreamHost)
#
# Author: Doug Hellmann <doug.hellmann@dreamhost.com>
#
# 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 oslo.config import cfg
import pecan
from ceilometer.api import acl
from ceilometer.api import config as api_config
from ceilometer.api import hooks
from ceilometer.api import middleware
from ceilometer.api.v1 import app as v1app
auth_opts = [
cfg.StrOpt('auth_strategy',
default='keystone',
help='The strategy to use for auth: noauth or keystone.'),
]
CONF = cfg.CONF
CONF.register_opts(auth_opts)
def get_pecan_config():
# Set up the pecan configuration
filename = api_config.__file__.replace('.pyc', '.py')
return pecan.configuration.conf_from_file(filename)
def setup_app(pecan_config=None, extra_hooks=None):
# FIXME: Replace DBHook with a hooks.TransactionHook
app_hooks = [hooks.ConfigHook(),
hooks.DBHook()]
if extra_hooks:
app_hooks.extend(extra_hooks)
if not pecan_config:
pecan_config = get_pecan_config()
if pecan_config.app.enable_acl:
app_hooks.append(acl.AdminAuthHook())
pecan.configuration.set_config(dict(pecan_config), overwrite=True)
app = pecan.make_app(
pecan_config.app.root,
static_root=pecan_config.app.static_root,
template_path=pecan_config.app.template_path,
logging=getattr(pecan_config, 'logging', {}),
debug=getattr(pecan_config.app, 'debug', False),
force_canonical=getattr(pecan_config.app, 'force_canonical', True),
hooks=app_hooks,
wrap_app=middleware.ParsableErrorMiddleware,
)
if pecan_config.app.enable_acl:
return acl.install(app, cfg.CONF)
return app
class VersionSelectorApplication(object):
def __init__(self):
pc = get_pecan_config()
pc.app.debug = CONF.debug
pc.app.enable_acl = (CONF.auth_strategy == 'keystone')
self.v1 = v1app.make_app(cfg.CONF, enable_acl=pc.app.enable_acl)
self.v2 = setup_app(pecan_config=pc)
def __call__(self, environ, start_response):
if environ['PATH_INFO'].startswith('/v1/'):
return self.v1(environ, start_response)
return self.v2(environ, start_response)