Source code for yardstick.benchmark.scenarios.availability.monitor.monitor_command

##############################################################################
# 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 yardstick.ssh as ssh
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


[docs]class MonitorOpenstackCmd(basemonitor.BaseMonitor): """docstring for MonitorApi""" __monitor_type__ = "openstack-cmd"
[docs] def setup(self): self.connection = None node_name = self._config.get("host", None) if node_name: host = self._context[node_name] ip = host.get("ip", None) user = host.get("user", "root") key_filename = host.get("key_filename", "~/.ssh/id_rsa") self.connection = ssh.SSH(user, ip, key_filename=key_filename) self.connection.wait(timeout=600) LOG.debug("ssh host success!") self.check_script = self.get_script_fullpath( "ha_tools/check_openstack_cmd.bash") self.cmd = self._config["command_name"]
[docs] def monitor_func(self): exit_status = 0 if self.connection: exit_status, stdout, stderr = self.connection.execute( "/bin/bash -s '{0}'".format(self.cmd), stdin=open(self.check_script, "r")) LOG.debug("the ret stats: %s stdout: %s stderr: %s" % (exit_status, stdout, stderr)) else: exit_status, stdout = _execute_shell_command(self.cmd) if exit_status: return False return True
[docs] 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": "192.168.235.22", "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, 'host': 'node1', '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_SLA() if __name__ == '__main__': # pragma: no cover _test()