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

   1 ##############################################################################
   2 # Copyright (c) 2016 Juan Qiu and others
   3 # juan_ qiu@tongji.edu.cn
   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 import logging
  10 import yardstick.ssh as ssh
  11
  12 import basemonitor as basemonitor
  13 from yardstick.benchmark.scenarios.availability.util import buildshellparams
  14
  15
  16 LOG = logging.getLogger(__name__)
  17
  18
  19 class GeneralMonitor(basemonitor.BaseMonitor):
  20     """docstring for MonitorApi"""
  21
  22     __monitor_type__ = "general-monitor"
  23
  24     def setup(self):
  25         host = self._context[self._config["host"]]
  26         ip = host.get("ip", None)
  27         user = host.get("user", "root")
  28         ssh_port = host.get("ssh_port", ssh.DEFAULT_PORT)
  29         key_filename = host.get("key_filename", "~/.ssh/id_rsa")
  30         self.key = self._config["key"]
  31         self.monitor_key = self._config["monitor_key"]
  32         self.monitor_type = self._config["monitor_type"]
  33
  34         if "parameter" in self._config:
  35             parameter = self._config['parameter']
  36             str = buildshellparams(parameter)
  37             l = list(item for item in parameter.values())
  38             self.cmd_param = str.format(*l)
  39
  40         self.monitor_cfg = basemonitor.BaseMonitor.monitor_cfgs.get(
  41             self.monitor_key)
  42         self.monitor_script = self.get_script_fullpath(
  43             self.monitor_cfg['monitor_script'])
  44         self.connection = ssh.SSH(user, ip, key_filename=key_filename,
  45                                   port=ssh_port)
  46         self.connection.wait(timeout=600)
  47         LOG.debug("ssh host success!")
  48
  49     def monitor_func(self):
  50         if "parameter" in self._config:
  51             with open(self.monitor_script, "r") as stdin_file:
  52                 exit_status, stdout, stderr = self.connection.execute(
  53                     self.cmd_param,
  54                     stdin=stdin_file)
  55         else:
  56             with open(self.monitor_script, "r") as stdin_file:
  57                 exit_status, stdout, stderr = self.connection.execute(
  58                     "/bin/bash -s ",
  59                     stdin=stdin_file)
  60
  61         if exit_status:
  62             return False
  63         return True
  64
  65     def verify_SLA(self):
  66         LOG.debug("the _result:%s", self._result)
  67         outage_time = self._result.get('outage_time', None)
  68         max_outage_time = self._config["sla"]["max_outage_time"]
  69         if outage_time is None:
  70             LOG.error("There is no outage_time in monitor result.")
  71             return False
  72         if outage_time > max_outage_time:
  73             LOG.error("SLA failure: %f > %f", outage_time, max_outage_time)
  74             return False
  75         else:
  76             return True