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#!/usr/bin/env python
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# Copyright 2011 OpenStack Foundation
# All Rights Reserved.
#
# 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.
"""
Escalator API Server
"""
import os
import sys
import eventlet
from oslo_service import systemd
from oslo_config import cfg
from oslo_log import log as logging
import osprofiler.notifier
import osprofiler.web
from escalator.common import config
from escalator.common import wsgi
from escalator import notifier
# Monkey patch socket, time, select, threads
eventlet.patcher.monkey_patch(all=False, socket=True, time=True,
select=True, thread=True, os=True)
# If ../escalator/__init__.py exists, add ../ to Python search path, so that
# it will override what happens to be installed in /usr/(local/)lib/python...
possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
os.pardir,
os.pardir))
if os.path.exists(os.path.join(possible_topdir, 'escalator', '__init__.py')):
sys.path.insert(0, possible_topdir)
CONF = cfg.CONF
CONF.import_group("profiler", "escalator.common.wsgi")
logging.register_options(CONF)
def fail(e):
sys.exit(100)
def main():
try:
config.parse_args()
wsgi.set_eventlet_hub()
logging.setup(CONF, 'escalator')
if cfg.CONF.profiler.enabled:
_notifier = osprofiler.notifier.create("Messaging",
notifier.messaging, {},
notifier.get_transport(),
"escalator", "api",
cfg.CONF.bind_host)
osprofiler.notifier.set(_notifier)
else:
osprofiler.web.disable()
server = wsgi.Server()
server.start(config.load_paste_app('escalator-api'), default_port=9393)
systemd.notify_once()
server.wait()
except Exception as e:
fail(e)
if __name__ == '__main__':
main()
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