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##############################################################################
# Copyright (c) 2015 Huawei Technologies Co.,Ltd. and others
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
import logging
import subprocess
import traceback
import basemonitor as basemonitor
LOG = logging.getLogger(__name__)
def _execute_shell_command(command):
'''execute shell script with error handling'''
exitcode = 0
output = []
try:
output = subprocess.check_output(command, shell=True)
except Exception:
exitcode = -1
output = traceback.format_exc()
LOG.error("exec command '%s' error:\n " % command)
LOG.error(traceback.format_exc())
return exitcode, output
class MonitorOpenstackCmd(basemonitor.BaseMonitor):
"""docstring for MonitorApi"""
__monitor_type__ = "openstack-cmd"
def monitor_func(self):
cmd = self._config["command_name"]
exit_status, stdout = _execute_shell_command(cmd)
if exit_status:
return False
return True
def verify_SLA(self):
outage_time = self._result.get('outage_time', None)
LOG.debug("the _result:%s" % self._result)
max_outage_time = self._config["sla"]["max_outage_time"]
if outage_time > max_outage_time:
LOG.info("SLA failure: %f > %f" % (outage_time, max_outage_time))
return False
else:
LOG.info("the sla is passed")
return True
def _test(): # pragma: no cover
host = {
"ip": "10.20.0.5",
"user": "root",
"key_filename": "/root/.ssh/id_rsa"
}
context = {"node1": host}
monitor_configs = []
config = {
'monitor_type': 'openstack-cmd',
'command_name': 'nova image-list',
'monitor_time': 1,
'SLA': {'max_outage_time': 5}
}
monitor_configs.append(config)
p = basemonitor.MonitorMgr()
p.init_monitors(monitor_configs, context)
p.start_monitors()
p.wait_monitors()
p.verify()
if __name__ == '__main__': # pragma: no cover
_test()
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