/usr/lib/python2.7/dist-packages/aodh/api/app.py is in python-aodh 2.0.0-0ubuntu1.
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# Copyright 2012 New Dream Network, LLC (DreamHost)
# Copyright 2015 Red Hat, Inc.
#
# 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 logging
import os
from oslo_config import cfg
from oslo_log import log
from paste import deploy
import pecan
from werkzeug import serving
from aodh.api import hooks
from aodh.api import middleware
from aodh.i18n import _
from aodh.i18n import _LW
from aodh import service
from aodh import storage
LOG = log.getLogger(__name__)
PECAN_CONFIG = {
'app': {
'root': 'aodh.api.controllers.root.RootController',
'modules': ['aodh.api'],
},
}
def setup_app(pecan_config=PECAN_CONFIG, conf=None):
if conf is None:
# NOTE(jd) That sucks but pecan forces us to use kwargs :(
raise RuntimeError("Config is actually mandatory")
# FIXME: Replace DBHook with a hooks.TransactionHook
app_hooks = [hooks.ConfigHook(conf),
hooks.DBHook(
storage.get_connection_from_config(conf)),
hooks.TranslationHook()]
pecan.configuration.set_config(dict(pecan_config), overwrite=True)
# NOTE(sileht): pecan debug won't work in multi-process environment
pecan_debug = conf.api.pecan_debug
if conf.api.workers != 1 and pecan_debug:
pecan_debug = False
LOG.warning(_LW('pecan_debug cannot be enabled, if workers is > 1, '
'the value is overrided with False'))
app = pecan.make_app(
pecan_config['app']['root'],
debug=pecan_debug,
hooks=app_hooks,
wrap_app=middleware.ParsableErrorMiddleware,
guess_content_type_from_ext=False
)
return app
def load_app(conf):
# Build the WSGI app
cfg_file = None
cfg_path = conf.api.paste_config
if not os.path.isabs(cfg_path):
cfg_file = conf.find_file(cfg_path)
elif os.path.exists(cfg_path):
cfg_file = cfg_path
if not cfg_file:
raise cfg.ConfigFilesNotFoundError([conf.api.paste_config])
LOG.info("Full WSGI config used: %s" % cfg_file)
return deploy.loadapp("config:" + cfg_file)
def build_server(conf):
app = load_app(conf)
# Create the WSGI server and start it
host, port = conf.api.host, conf.api.port
LOG.info(_('Starting server in PID %s') % os.getpid())
LOG.info(_("Configuration:"))
conf.log_opt_values(LOG, logging.INFO)
if host == '0.0.0.0':
LOG.info(_(
'serving on 0.0.0.0:%(sport)s, view at http://127.0.0.1:%(vport)s')
% ({'sport': port, 'vport': port}))
else:
LOG.info(_("serving on http://%(host)s:%(port)s") % (
{'host': host, 'port': port}))
serving.run_simple(host, port,
app, processes=conf.api.workers)
def _app():
conf = service.prepare_service()
return setup_app(conf=conf)
def app_factory(global_config, **local_conf):
return _app()
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