92 lines
2.8 KiB
Python
Executable File
92 lines
2.8 KiB
Python
Executable File
#!/usr/bin/python
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#
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# Copyright 2014 Huawei Technologies Co. Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""main script to poll machines which is connected to the switches."""
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import functools
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import lockfile
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import logging
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from multiprocessing import Pool
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from compass.actions import poll_switch
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from compass.actions import util
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from compass.db import database
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from compass.tasks.client import celery
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from compass.utils import daemonize
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from compass.utils import flags
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from compass.utils import logsetting
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from compass.utils import setting_wrapper as setting
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flags.add('switch_ips',
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help='comma seperated switch ips',
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default='')
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flags.add_bool('async',
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help='ryn in async mode',
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default=True)
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flags.add('thread_pool_size',
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help='thread pool size when run in noasync mode',
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default='4')
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flags.add('run_interval',
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help='run interval in seconds',
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default=setting.POLLSWITCH_INTERVAL)
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def pollswitches(switch_ips):
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"""poll switch."""
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poll_switch_ips = []
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with database.session():
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poll_switch_ips = util.update_switch_ips(switch_ips)
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if flags.OPTIONS.async:
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for poll_switch_ip in poll_switch_ips:
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celery.send_task(
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'compass.tasks.pollswitch',
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(poll_switch_ip,)
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)
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else:
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try:
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pool = Pool(processes=int(flags.OPTIONS.thread_pool_size))
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for poll_switch_ip in poll_switch_ips:
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pool.apply_async(
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poll_switch.poll_switch,
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(poll_switch_ip,)
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)
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pool.close()
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pool.join()
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except Exception as error:
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logging.error('failed to poll switches %s',
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poll_switch_ips)
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logging.exception(error)
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if __name__ == '__main__':
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flags.init()
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logsetting.init()
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logging.info('run poll_switch')
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daemonize.daemonize(
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functools.partial(
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pollswitches,
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[switch_ip
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for switch_ip in flags.OPTIONS.switch_ips.split(',')
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if switch_ip]),
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flags.OPTIONS.run_interval,
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pidfile=lockfile.FileLock('/var/run/poll_switch.pid'),
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stderr=open('/tmp/poll_switch_err.log', 'w+'),
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stdout=open('/tmp/poll_switch_out.log', 'w+'))
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