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 import logging
  10 import traceback
  11 import subprocess
  12 import yardstick.ssh as ssh
  13 from baseattacker import BaseAttacker
  14
  15 LOG = logging.getLogger(__name__)
  16
  17
  18 def _execute_shell_command(command, stdin=None):
  19     '''execute shell script with error handling'''
  20     exitcode = 0
  21     output = []
  22     try:
  23         output = subprocess.check_output(command, stdin=stdin, shell=True)
  24     except Exception:
  25         exitcode = -1
  26         output = traceback.format_exc()
  27         LOG.error("exec command '%s' error:\n " % command)
  28         LOG.error(traceback.format_exc())
  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         ip = host.get("ip", None)
  40         user = host.get("user", "root")
  41         ssh_port = host.get("ssh_port", ssh.DEFAULT_PORT)
  42         key_filename = host.get("key_filename", "~/.ssh/id_rsa")
  43
  44         self.connection = ssh.SSH(user, ip, key_filename=key_filename,
  45                                   port=ssh_port)
  46         self.connection.wait(timeout=600)
  47         LOG.debug("ssh host success!")
  48         self.host_ip = ip
  49
  50         self.ipmi_ip = host.get("ipmi_ip", None)
  51         self.ipmi_user = host.get("ipmi_user", "root")
  52         self.ipmi_pwd = host.get("ipmi_pwd", None)
  53
  54         self.fault_cfg = BaseAttacker.attacker_cfgs.get('bare-metal-down')
  55         self.check_script = self.get_script_fullpath(
  56             self.fault_cfg['check_script'])
  57         self.recovery_script = self.get_script_fullpath(
  58             self.fault_cfg['recovery_script'])
  59
  60         if self.check():
  61             self.setup_done = True
  62
  63     def check(self):
  64         exit_status, stdout, stderr = self.connection.execute(
  65             "/bin/sh -s {0} -W 10".format(self.host_ip),
  66             stdin=open(self.check_script, "r"))
  67
  68         LOG.debug("check ret: %s out:%s err:%s" %
  69                   (exit_status, stdout, stderr))
  70         if not stdout or "running" not in stdout:
  71             LOG.info("the host (ipmi_ip:%s) is not running!" % self.ipmi_ip)
  72             return False
  73
  74         return True
  75
  76     def inject_fault(self):
  77         exit_status, stdout, stderr = self.connection.execute(
  78             "shutdown -h now")
  79         LOG.debug("inject fault ret: %s out:%s err:%s" %
  80                   (exit_status, stdout, stderr))
  81         if not exit_status:
  82             LOG.info("inject fault success")
  83
  84     def recover(self):
  85         jump_host_name = self._config.get("jump_host", None)
  86         self.jump_connection = None
  87         if jump_host_name is not None:
  88             host = self._context.get(jump_host_name, None)
  89             ip = host.get("ip", None)
  90             user = host.get("user", "root")
  91             ssh_port = host.get("ssh_port", ssh.DEFAULT_PORT)
  92             pwd = host.get("pwd", None)
  93
  94             LOG.debug("jump_host ip:%s user:%s" % (ip, user))
  95             self.jump_connection = ssh.SSH(user, ip, password=pwd,
  96                                            port=ssh_port)
  97             self.jump_connection.wait(timeout=600)
  98             LOG.debug("ssh jump host success!")
  99
 100         if self.jump_connection is not None:
 101             exit_status, stdout, stderr = self.jump_connection.execute(
 102                 "/bin/bash -s {0} {1} {2} {3}".format(
 103                     self.ipmi_ip, self.ipmi_user, self.ipmi_pwd, "on"),
 104                 stdin=open(self.recovery_script, "r"))
 105         else:
 106             exit_status, stdout = _execute_shell_command(
 107                 "/bin/bash -s {0} {1} {2} {3}".format(
 108                     self.ipmi_ip, self.ipmi_user, self.ipmi_pwd, "on"),
 109                 stdin=open(self.recovery_script, "r"))
 110
 111
 112 def _test():  # pragma: no cover
 113     host = {
 114         "ipmi_ip": "10.20.0.5",
 115         "ipmi_user": "root",
 116         "ipmi_pwd": "123456",
 117         "ip": "10.20.0.5",
 118         "user": "root",
 119         "key_filename": "/root/.ssh/id_rsa"
 120     }
 121     context = {"node1": host}
 122     attacker_cfg = {
 123         'fault_type': 'bear-metal-down',
 124         'host': 'node1',
 125     }
 126     ins = BaremetalAttacker(attacker_cfg, context)
 127     ins.setup()
 128     ins.inject_fault()
 129
 130
 131 if __name__ == '__main__':  # pragma: no cover
 132     _test()