neutron/neutron/tests/functional/agent/linux/simple_daemon.py

57 lines
1.8 KiB
Python

# Copyright 2014 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 time
from oslo_config import cfg
from neutron._i18n import _
from neutron.agent.linux import daemon
def main():
class SimpleDaemon(daemon.Daemon):
"""The purpose of this daemon is to serve as an example, and also as
a dummy daemon, which can be invoked by functional testing, it
does nothing but setting the pid file, and staying detached in the
background.
"""
def run(self):
while True:
time.sleep(10)
opts = [
cfg.StrOpt('uuid',
help=_('uuid provided from the command line '
'so external_process can track us via /proc/'
'cmdline interface.'),
required=True),
cfg.StrOpt('pid_file',
help=_('Location of pid file of this process.'),
required=True)
]
cfg.CONF.register_cli_opts(opts)
# Don't get the default configuration file
cfg.CONF(project='neutron', default_config_files=[])
simple_daemon = SimpleDaemon(cfg.CONF.pid_file,
uuid=cfg.CONF.uuid)
simple_daemon.start()
if __name__ == "__main__":
main()