yardstick/benchmark/scenarios/availability/attacker/attacker_baremetal.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 import subprocess
  12
  13 import yardstick.ssh as ssh
  14 from yardstick.benchmark.scenarios.availability.attacker.baseattacker import \
  15     BaseAttacker
  16
  17 LOG = logging.getLogger(__name__)
  18
  19
  20 def _execute_shell_command(command, stdin=None):
  21     """execute shell script with error handling"""
  22     exitcode = 0
  23     output = []
  24     try:
  25         output = subprocess.check_output(command, stdin=stdin, shell=True)
  26     except Exception:
  27         exitcode = -1
  28         LOG.error("exec command '%s' error:\n ", command, exc_info=True)
  29
  30     return exitcode, output
  31
  32
  33 class BaremetalAttacker(BaseAttacker):
  34     __attacker_type__ = 'bare-metal-down'
  35
  36     def setup(self):
  37         LOG.debug("config:%s context:%s", self._config, self._context)
  38         host = self._context.get(self._config['host'], None)
  39
  40         self.connection = ssh.SSH.from_node(host, defaults={"user": "root"})
  41         self.connection.wait(timeout=600)
  42         LOG.debug("ssh host success!")
  43         self.host_ip = host['ip']
  44
  45         self.ipmi_ip = host.get("ipmi_ip", None)
  46         self.ipmi_user = host.get("ipmi_user", "root")
  47         self.ipmi_pwd = host.get("ipmi_pwd", None)
  48
  49         self.fault_cfg = BaseAttacker.attacker_cfgs.get('bare-metal-down')
  50         self.check_script = self.get_script_fullpath(
  51             self.fault_cfg['check_script'])
  52         self.recovery_script = self.get_script_fullpath(
  53             self.fault_cfg['recovery_script'])
  54
  55         if self.check():
  56             self.setup_done = True
  57
  58     def check(self):
  59         with open(self.check_script, "r") as stdin_file:
  60             exit_status, stdout, stderr = self.connection.execute(
  61                 "sudo /bin/sh -s {0} -W 10".format(self.host_ip),
  62                 stdin=stdin_file)
  63
  64         LOG.debug("check ret: %s out:%s err:%s",
  65                   exit_status, stdout, stderr)
  66         if not stdout or "running" not in stdout:
  67             LOG.info("the host (ipmi_ip:%s) is not running!", self.ipmi_ip)
  68             return False
  69
  70         return True
  71
  72     def inject_fault(self):
  73         exit_status, stdout, stderr = self.connection.execute(
  74             "sudo shutdown -h now")
  75         LOG.debug("inject fault ret: %s out:%s err:%s",
  76                   exit_status, stdout, stderr)
  77         if not exit_status:
  78             LOG.info("inject fault success")
  79
  80     def recover(self):
  81         jump_host_name = self._config.get("jump_host", None)
  82         self.jump_connection = None
  83         if jump_host_name is not None:
  84             host = self._context.get(jump_host_name, None)
  85
  86             LOG.debug("jump_host ip:%s user:%s", host['ip'], host['user'])
  87             self.jump_connection = ssh.SSH.from_node(
  88                 host,
  89                 # why do we allow pwd for password?
  90                 defaults={"user": "root", "password": host.get("pwd")}
  91             )
  92             self.jump_connection.wait(timeout=600)
  93             LOG.debug("ssh jump host success!")
  94
  95         if self.jump_connection is not None:
  96             with open(self.recovery_script, "r") as stdin_file:
  97                 self.jump_connection.execute(
  98                     "sudo /bin/bash -s {0} {1} {2} {3}".format(
  99                         self.ipmi_ip, self.ipmi_user, self.ipmi_pwd, "on"),
 100                     stdin=stdin_file)
 101         else:
 102             _execute_shell_command(
 103                 "sudo /bin/bash -s {0} {1} {2} {3}".format(
 104                     self.ipmi_ip, self.ipmi_user, self.ipmi_pwd, "on"),
 105                 stdin=open(self.recovery_script, "r"))
 106
 107
 108 def _test():  # pragma: no cover
 109     host = {
 110         "ipmi_ip": "10.20.0.5",
 111         "ipmi_user": "root",
 112         "ipmi_pwd": "123456",
 113         "ip": "10.20.0.5",
 114         "user": "root",
 115         "key_filename": "/root/.ssh/id_rsa"
 116     }
 117     context = {"node1": host}
 118     attacker_cfg = {
 119         'fault_type': 'bear-metal-down',
 120         'host': 'node1',
 121     }
 122     ins = BaremetalAttacker(attacker_cfg, context)
 123     ins.setup()
 124     ins.inject_fault()
 125
 126
 127 if __name__ == '__main__':  # pragma: no cover
 128     _test()