1a1ac569ac
The daemon needs to periodically check if the server is still running so it can exit cleanly instead of waiting for a signal. Change-Id: I20935773518653916f8ed7d5d3734f7b9e478998
88 lines
2.7 KiB
Python
88 lines
2.7 KiB
Python
#!/usr/bin/python2
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#
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# Copyright 2013 Rackspace Australia
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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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import argparse
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import daemon
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import extras
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import os
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import signal
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import sys
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import time
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import yaml
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from turbo_hipster import worker_server
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# as of python-daemon 1.6 it doesn't bundle pidlockfile anymore
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# instead it depends on lockfile-0.9.1 which uses pidfile.
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PID_FILE_MODULE = extras.try_imports(['daemon.pidlockfile', 'daemon.pidfile'])
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def setup_server(args):
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with open(args.config, 'r') as config_stream:
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config = yaml.safe_load(config_stream)
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if not config['debug_log']:
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# NOTE(mikal): debug logging _must_ be enabled for the log writing
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# in lib.utils.execute_to_log to work correctly.
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raise Exception('Debug log not configured')
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server = worker_server.Server(config)
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server.setup_logging(config['debug_log'])
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def term_handler(signum, frame):
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server.shutdown()
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signal.signal(signal.SIGTERM, term_handler)
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if args.background:
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server.daemon = True
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server.start()
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while not server.stopped():
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try:
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time.sleep(3)
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except KeyboardInterrupt:
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print "Ctrl + C: asking tasks to exit nicely...\n"
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server.shutdown()
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def main():
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sys.path.insert(0, os.path.abspath(
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os.path.join(os.path.dirname(__file__), '../')))
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parser = argparse.ArgumentParser()
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parser.add_argument('-c', '--config',
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default=
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'/etc/turbo-hipster/config.yaml',
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help='Path to yaml config file.')
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parser.add_argument('-b', '--background', action='store_true',
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help='Run as a daemon in the background.')
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parser.add_argument('-p', '--pidfile',
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default='/var/run/turbo-hipster/'
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'turbo-hipster-worker-server.pid',
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help='PID file to lock during daemonization.')
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args = parser.parse_args()
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if args.background:
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pidfile = PID_FILE_MODULE.TimeoutPIDLockFile(args.pidfile, 10)
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with daemon.DaemonContext(pidfile=pidfile):
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setup_server(args)
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else:
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setup_server(args)
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if __name__ == '__main__':
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main()
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