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 import logging
  10
  11 from baseattacker import BaseAttacker
  12 import yardstick.ssh as ssh
  13
  14 LOG = logging.getLogger(__name__)
  15
  16
  17 class ProcessAttacker(BaseAttacker):
  18
  19     __attacker_type__ = 'kill-process'
  20
  21     def setup(self):
  22         LOG.debug("config:%s context:%s", self._config, self._context)
  23         host = self._context.get(self._config['host'], None)
  24         ip = host.get("ip", None)
  25         user = host.get("user", "root")
  26         ssh_port = host.get("ssh_port", ssh.DEFAULT_PORT)
  27         key_filename = host.get("key_filename", "~/.ssh/id_rsa")
  28
  29         self.connection = ssh.SSH(user, ip, key_filename=key_filename,
  30                                   port=ssh_port)
  31         self.connection.wait(timeout=600)
  32         LOG.debug("ssh host success!")
  33
  34         self.service_name = self._config['process_name']
  35         self.fault_cfg = BaseAttacker.attacker_cfgs.get('kill-process')
  36
  37         self.check_script = self.get_script_fullpath(
  38             self.fault_cfg['check_script'])
  39         self.inject_script = self.get_script_fullpath(
  40             self.fault_cfg['inject_script'])
  41         self.recovery_script = self.get_script_fullpath(
  42             self.fault_cfg['recovery_script'])
  43
  44         if self.check():
  45             self.setup_done = True
  46
  47     def check(self):
  48         exit_status, stdout, stderr = self.connection.execute(
  49             "/bin/sh -s {0}".format(self.service_name),
  50             stdin=open(self.check_script, "r"))
  51
  52         if stdout and "running" in stdout:
  53             LOG.info("check the envrioment success!")
  54             return True
  55         else:
  56             LOG.error(
  57                 "the host envrioment is error, stdout:%s, stderr:%s",
  58                 stdout, stderr)
  59         return False
  60
  61     def inject_fault(self):
  62         exit_status, stdout, stderr = self.connection.execute(
  63             "/bin/sh -s {0}".format(self.service_name),
  64             stdin=open(self.inject_script, "r"))
  65
  66     def recover(self):
  67         exit_status, stdout, stderr = self.connection.execute(
  68             "/bin/sh -s {0} ".format(self.service_name),
  69             stdin=open(self.recovery_script, "r"))