yardstick/benchmark/scenarios/availability/monitor/monitor_command.py

   1 ##############################################################################
   2 # Copyright (c) 2015 Huawei Technologies Co.,Ltd. and others
   3 #
   4 # All rights reserved. This program and the accompanying materials
   5 # are made available under the terms of the Apache License, Version 2.0
   6 # which accompanies this distribution, and is available at
   7 # http://www.apache.org/licenses/LICENSE-2.0
   8 ##############################################################################
   9 from __future__ import absolute_import
  10
  11 import os
  12 import logging
  13 import subprocess
  14
  15 import yardstick.ssh as ssh
  16 from yardstick.benchmark.scenarios.availability.monitor import basemonitor
  17
  18 LOG = logging.getLogger(__name__)
  19
  20
  21 def _execute_shell_command(command):
  22     """execute shell script with error handling"""
  23     exitcode = 0
  24     output = []
  25     try:
  26         output = subprocess.check_output(command, shell=True)
  27     except Exception:  # pylint: disable=broad-except
  28         exitcode = -1
  29         LOG.error("exec command '%s' error:\n ", command, exc_info=True)
  30
  31     return exitcode, output
  32
  33
  34 class MonitorOpenstackCmd(basemonitor.BaseMonitor):
  35     """docstring for MonitorApi"""
  36
  37     __monitor_type__ = "openstack-cmd"
  38
  39     def setup(self):
  40         self.connection = None
  41         node_name = self._config.get("host", None)
  42         if node_name:
  43             host = self._context[node_name]
  44
  45             self.connection = ssh.SSH.from_node(host,
  46                                                 defaults={"user": "root"})
  47             self.connection.wait(timeout=600)
  48             LOG.debug("ssh host (%s) success!", str(host))
  49
  50         self.check_script = self.get_script_fullpath(
  51             "ha_tools/check_openstack_cmd.bash")
  52
  53         self.cmd = self._config["command_name"]
  54
  55         try:
  56             insecure = os.environ['OS_INSECURE']
  57         except KeyError:
  58             pass
  59         else:
  60             if insecure.lower() == "true":
  61                 self.cmd = self.cmd + " --insecure"
  62
  63     def monitor_func(self):
  64         exit_status, stdout = _execute_shell_command(self.cmd)
  65         LOG.debug("Executed command '%s'. "
  66                   "The stdout is:\n%s", self.cmd, stdout)
  67         if exit_status:
  68             return False
  69         return True
  70
  71     def verify_SLA(self):
  72         outage_time = self._result.get('outage_time', None)
  73         max_outage_time = self._config["sla"]["max_outage_time"]
  74         if outage_time > max_outage_time:
  75             LOG.info("SLA failure: %f > %f", outage_time, max_outage_time)
  76             return False
  77         else:
  78             return True
  79
  80
  81 def _test():    # pragma: no cover
  82     host = {
  83         "ip": "192.168.235.22",
  84         "user": "root",
  85         "key_filename": "/root/.ssh/id_rsa"
  86     }
  87     context = {"node1": host}
  88     monitor_configs = []
  89     config = {
  90         'monitor_type': 'openstack-cmd',
  91         'command_name': 'nova image-list',
  92         'monitor_time': 1,
  93         'host': 'node1',
  94         'sla': {'max_outage_time': 5}
  95     }
  96     monitor_configs.append(config)
  97
  98     p = basemonitor.MonitorMgr({})
  99     p.init_monitors(monitor_configs, context)
 100     p.start_monitors()
 101     p.wait_monitors()
 102     p.verify_SLA()
 103
 104
 105 if __name__ == '__main__':    # pragma: no cover
 106     _test()