yardstick/benchmark/scenarios/availability/attacker/attacker_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 from __future__ import absolute_import
  10 import logging
  11
  12 import yardstick.ssh as ssh
  13 from yardstick.benchmark.scenarios.availability import util
  14 from yardstick.benchmark.scenarios.availability.attacker.baseattacker import \
  15     BaseAttacker
  16
  17 LOG = logging.getLogger(__name__)
  18
  19
  20 class GeneralAttacker(BaseAttacker):
  21
  22     __attacker_type__ = 'general-attacker'
  23
  24     def setup(self):
  25         LOG.debug("config:%s context:%s", self._config, self._context)
  26         host = self._context.get(self._config['host'], None)
  27
  28         self.connection = ssh.SSH.from_node(host, defaults={"user": "root"})
  29         self.connection.wait(timeout=600)
  30         LOG.debug("ssh host success!")
  31
  32         self.key = self._config['key']
  33         self.attack_key = self._config['attack_key']
  34
  35         if "action_parameter" in self._config:
  36             actionParameter = self._config['action_parameter']
  37             str = util.buildshellparams(actionParameter)
  38             LOG.debug("inject parameter is: %s", actionParameter)
  39             LOG.debug("inject parameter values are: %s",
  40                       list(actionParameter.values()))
  41             l = list(actionParameter.values())
  42             self.action_param = str.format(*l)
  43
  44         if "rollback_parameter" in self._config:
  45             rollbackParameter = self._config['rollback_parameter']
  46             str = util.buildshellparams(rollbackParameter)
  47             LOG.debug("recover parameter is: %s", rollbackParameter)
  48             LOG.debug("recover parameter values are: %s",
  49                       list(rollbackParameter.values()))
  50             l = list(rollbackParameter.values())
  51             self.rollback_param = str.format(*l)
  52
  53         self.fault_cfg = BaseAttacker.attacker_cfgs.get(self.attack_key)
  54         self.inject_script = self.get_script_fullpath(
  55             self.fault_cfg['inject_script'])
  56         self.recovery_script = self.get_script_fullpath(
  57             self.fault_cfg['recovery_script'])
  58
  59     def inject_fault(self):
  60         LOG.debug("%s starting inject!", self.key)
  61         LOG.debug("the inject_script path:%s", self.inject_script)
  62
  63         if "action_parameter" in self._config:
  64             LOG.debug("the shell command is: %s", self.action_param)
  65             with open(self.inject_script, "r") as stdin_file:
  66                 exit_status, stdout, stderr = self.connection.execute(
  67                     self.action_param,
  68                     stdin=stdin_file)
  69         else:
  70             with open(self.inject_script, "r") as stdin_file:
  71                 exit_status, stdout, stderr = self.connection.execute(
  72                     "/bin/bash -s ",
  73                     stdin=stdin_file)
  74
  75         LOG.debug("the inject_fault's exit status is: %s", exit_status)
  76         if exit_status == 0:
  77             LOG.debug("success,the inject_fault's output is: %s", stdout)
  78         else:
  79             LOG.error(
  80                 "the inject_fault's error, stdout:%s, stderr:%s",
  81                 stdout, stderr)
  82
  83     def recover(self):
  84         if "rollback_parameter" in self._config:
  85             LOG.debug("the shell command is: %s", self.rollback_param)
  86             with open(self.recovery_script, "r") as stdin_file:
  87                 exit_status, stdout, stderr = self.connection.execute(
  88                     self.rollback_param,
  89                     stdin=stdin_file)
  90         else:
  91             with open(self.recovery_script, "r") as stdin_file:
  92                 exit_status, stdout, stderr = self.connection.execute(
  93                     "/bin/bash -s ",
  94                     stdin=stdin_file)