91 lines
2.6 KiB
Python
91 lines
2.6 KiB
Python
# 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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from oslo_log import log
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import pecan
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import webob.exc
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from werkzeug import serving
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from evoque.api import hooks
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from evoque.common import service
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from evoque import exceptions
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LOG = log.getLogger(__name__)
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PECAN_CONFIG = {
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'app': {
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'root': 'evoque.api.RootController',
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'modules': ['evoque.api'],
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'hooks': [
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hooks.ContextHook(),
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hooks.RPCHook(),
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],
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},
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}
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class NotImplementedMiddleware(object):
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def __init__(self, app):
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self.app = app
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def __call__(self, environ, start_response):
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try:
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return self.app(environ, start_response)
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except exceptions.NotImplementedError:
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raise webob.exc.HTTPNotImplemented(
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"Sorry, this Evoque server does "
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"not implement this feature :(")
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def setup_app(config=PECAN_CONFIG, cfg=None):
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if cfg is None:
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raise RuntimeError("Config is actually mandatory")
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# NOTE(lawrancejing): pecan debug won't work in multi-process environment
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pecan_debug = cfg.api.pecan_debug
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if cfg.api.workers != 1 and pecan_debug:
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pecan_debug = False
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LOG.warning('pecan_debug cannot be enabled, if workers is > 1, '
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'the value is overrided with False')
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app = pecan.make_app(
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config['app']['root'],
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debug=pecan_debug,
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hooks=config['app']['hooks'],
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guess_content_type_from_ext=False,
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)
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return app
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class WerkzeugApp(object):
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# NOTE(lawrancejing): The purpose of this class is only to be used
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# with werkzeug to create the app after the werkzeug
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# fork gnocchi-api
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def __init__(self, conf):
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self.app = None
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self.conf = conf
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def __call__(self, environ, start_response):
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if self.app is None:
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self.app = setup_app(cfg=self.conf)
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return self.app(environ, start_response)
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def build_server():
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conf = service.prepare_service()
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serving.run_simple(conf.api.host, conf.api.port,
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WerkzeugApp(conf),
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processes=conf.api.workers)
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