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 from yardstick.benchmark.scenarios.availability.util \
  17     import read_stdout_item, build_shell_command
  18
  19 LOG = logging.getLogger(__name__)
  20
  21
  22 class GeneralAttacker(BaseAttacker):
  23
  24     __attacker_type__ = 'general-attacker'
  25
  26     def setup(self):
  27         LOG.debug("config:%s context:%s", self._config, self._context)
  28         host = self._context.get(self._config['host'], None)
  29
  30         self.connection = ssh.SSH.from_node(host, defaults={"user": "root"})
  31         self.connection.wait(timeout=600)
  32         LOG.debug("ssh host success!")
  33
  34         self.key = self._config['key']
  35         self.attack_key = self._config['attack_key']
  36
  37         if "action_parameter" in self._config:
  38             self.actionParameter_config = self._config['action_parameter']
  39
  40         if "rollback_parameter" in self._config:
  41             rollbackParameter = self._config['rollback_parameter']
  42             str = util.buildshellparams(rollbackParameter)
  43             LOG.debug("recover parameter is: %s", rollbackParameter)
  44             LOG.debug("recover parameter values are: %s",
  45                       list(rollbackParameter.values()))
  46             l = list(rollbackParameter.values())
  47             self.rollback_param = str.format(*l)
  48
  49         self.fault_cfg = BaseAttacker.attacker_cfgs.get(self.attack_key)
  50         self.inject_script = self.get_script_fullpath(
  51             self.fault_cfg['inject_script'])
  52         self.recovery_script = self.get_script_fullpath(
  53             self.fault_cfg['recovery_script'])
  54
  55     def inject_fault(self):
  56         LOG.debug("%s starting inject!", self.key)
  57         LOG.debug("the inject_script path:%s", self.inject_script)
  58         if "action_parameter" in self._config:
  59             self.action_param = \
  60                 build_shell_command(
  61                     self.actionParameter_config,
  62                     bool(self.connection),
  63                     self.intermediate_variables)
  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                     "sudo {}".format(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                     "sudo /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             if "return_parameter" in self._config:
  79                 returnParameter = self._config['return_parameter']
  80                 for key, item in returnParameter.items():
  81                     value = read_stdout_item(stdout, key)
  82                     LOG.debug("intermediate variables %s: %s", item, value)
  83                     self.intermediate_variables[item] = value
  84         else:
  85             LOG.error(
  86                 "the inject_fault's error, stdout:%s, stderr:%s",
  87                 stdout, stderr)
  88
  89     def recover(self):
  90         if "rollback_parameter" in self._config:
  91             LOG.debug("the shell command is: %s", self.rollback_param)
  92             with open(self.recovery_script, "r") as stdin_file:
  93                 exit_status, stdout, stderr = self.connection.execute(
  94                     "sudo {}".format(self.rollback_param),
  95                     stdin=stdin_file)
  96         else:
  97             with open(self.recovery_script, "r") as stdin_file:
  98                 exit_status, stdout, stderr = self.connection.execute(
  99                     "sudo /bin/bash -s ",
 100                     stdin=stdin_file)