yardstick/benchmark/scenarios/availability/attacker/attacker_process.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 import logging
  11
  12 import yardstick.ssh as ssh
  13 from yardstick.benchmark.scenarios.availability.attacker.baseattacker import \
  14     BaseAttacker
  15
  16 LOG = logging.getLogger(__name__)
  17
  18
  19 class ProcessAttacker(BaseAttacker):
  20
  21     __attacker_type__ = 'kill-process'
  22
  23     def setup(self):
  24         LOG.debug("config:%s context:%s", self._config, self._context)
  25         host = self._context.get(self._config['host'], None)
  26
  27         self.connection = ssh.SSH.from_node(host, defaults={"user": "root"})
  28         self.connection.wait(timeout=600)
  29         LOG.debug("ssh host success!")
  30
  31         self.service_name = self._config['process_name']
  32         self.fault_cfg = BaseAttacker.attacker_cfgs.get('kill-process')
  33
  34         self.check_script = self.get_script_fullpath(
  35             self.fault_cfg['check_script'])
  36         self.inject_script = self.get_script_fullpath(
  37             self.fault_cfg['inject_script'])
  38         self.recovery_script = self.get_script_fullpath(
  39             self.fault_cfg['recovery_script'])
  40
  41         self.data[self.service_name] = self.check()
  42
  43     def check(self):
  44         with open(self.check_script, "r") as stdin_file:
  45             exit_status, stdout, stderr = self.connection.execute(
  46                 "sudo /bin/sh -s {0}".format(self.service_name),
  47                 stdin=stdin_file)
  48
  49         if stdout:
  50             LOG.info("check the environment success!")
  51             return int(stdout.strip('\n'))
  52         else:
  53             LOG.error(
  54                 "the host environment is error, stdout:%s, stderr:%s",
  55                 stdout, stderr)
  56         return False
  57
  58     def inject_fault(self):
  59         with open(self.inject_script, "r") as stdin_file:
  60             exit_status, stdout, stderr = self.connection.execute(
  61                 "sudo /bin/sh -s {0}".format(self.service_name),
  62                 stdin=stdin_file)
  63
  64     def recover(self):
  65         with open(self.recovery_script, "r") as stdin_file:
  66             exit_status, stdout, stderr = self.connection.execute(
  67                 "sudo /bin/bash -s {0} ".format(self.service_name),
  68                 stdin=stdin_file)
  69         if exit_status:
  70             LOG.info("Fail to restart service!")