73 lines
1.7 KiB
Python
73 lines
1.7 KiB
Python
# Copyright 2014 DreamHost, LLC
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#
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# Author: DreamHost, LLC
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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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"""Periodic health check code.
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"""
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import threading
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import time
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from oslo_config import cfg
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from astara import event
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from oslo_log import log as logging
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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HEALTH_INSPECTOR_OPTS = [
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cfg.IntOpt('health_check_period',
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default=60,
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help='seconds between health checks'),
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]
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CONF.register_opts(HEALTH_INSPECTOR_OPTS)
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def _health_inspector(scheduler):
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"""Runs in the thread.
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"""
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period = CONF.health_check_period
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while True:
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time.sleep(period)
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LOG.debug('waking up')
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r = event.Resource(
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id='*',
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tenant_id='*',
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driver='*',
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)
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e = event.Event(
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resource=r,
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crud=event.POLL,
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body={},
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)
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scheduler.handle_message('*', e)
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def start_inspector(period, scheduler):
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"""Start a health check thread.
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"""
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t = threading.Thread(
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target=_health_inspector,
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args=(scheduler,),
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name='HealthInspector',
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)
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t.setDaemon(True)
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t.start()
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return t
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