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 import traceback
  13
  14 import yardstick.ssh as ssh
  15 from yardstick.benchmark.scenarios.availability.attacker.baseattacker import \
  16     BaseAttacker
  17
  18 LOG = logging.getLogger(__name__)
  19
  20
  21 def _execute_shell_command(command, stdin=None):
  22     """execute shell script with error handling"""
  23     exitcode = 0
  24     output = []
  25     try:
  26         output = subprocess.check_output(command, stdin=stdin, shell=True)
  27     except Exception:
  28         exitcode = -1
  29         output = traceback.format_exc()
  30         LOG.error("exec command '%s' error:\n ", command)
  31         LOG.error(traceback.format_exc())
  32
  33     return exitcode, output
  34
  35
  36 class BaremetalAttacker(BaseAttacker):
  37     __attacker_type__ = 'bare-metal-down'
  38
  39     def setup(self):
  40         LOG.debug("config:%s context:%s", self._config, self._context)
  41         host = self._context.get(self._config['host'], None)
  42         ip = host.get("ip", None)
  43         user = host.get("user", "root")
  44         ssh_port = host.get("ssh_port", ssh.DEFAULT_PORT)
  45         key_filename = host.get("key_filename", "~/.ssh/id_rsa")
  46
  47         self.connection = ssh.SSH(user, ip, key_filename=key_filename,
  48                                   port=ssh_port)
  49         self.connection.wait(timeout=600)
  50         LOG.debug("ssh host success!")
  51         self.host_ip = ip
  52
  53         self.ipmi_ip = host.get("ipmi_ip", None)
  54         self.ipmi_user = host.get("ipmi_user", "root")
  55         self.ipmi_pwd = host.get("ipmi_pwd", None)
  56
  57         self.fault_cfg = BaseAttacker.attacker_cfgs.get('bare-metal-down')
  58         self.check_script = self.get_script_fullpath(
  59             self.fault_cfg['check_script'])
  60         self.recovery_script = self.get_script_fullpath(
  61             self.fault_cfg['recovery_script'])
  62
  63         if self.check():
  64             self.setup_done = True
  65
  66     def check(self):
  67         with open(self.check_script, "r") as stdin_file:
  68             exit_status, stdout, stderr = self.connection.execute(
  69                 "/bin/sh -s {0} -W 10".format(self.host_ip),
  70                 stdin=stdin_file)
  71
  72         LOG.debug("check ret: %s out:%s err:%s",
  73                   exit_status, stdout, stderr)
  74         if not stdout or "running" not in stdout:
  75             LOG.info("the host (ipmi_ip:%s) is not running!", self.ipmi_ip)
  76             return False
  77
  78         return True
  79
  80     def inject_fault(self):
  81         exit_status, stdout, stderr = self.connection.execute(
  82             "shutdown -h now")
  83         LOG.debug("inject fault ret: %s out:%s err:%s",
  84                   exit_status, stdout, stderr)
  85         if not exit_status:
  86             LOG.info("inject fault success")
  87
  88     def recover(self):
  89         jump_host_name = self._config.get("jump_host", None)
  90         self.jump_connection = None
  91         if jump_host_name is not None:
  92             host = self._context.get(jump_host_name, None)
  93             ip = host.get("ip", None)
  94             user = host.get("user", "root")
  95             ssh_port = host.get("ssh_port", ssh.DEFAULT_PORT)
  96             pwd = host.get("pwd", None)
  97
  98             LOG.debug("jump_host ip:%s user:%s", ip, user)
  99             self.jump_connection = ssh.SSH(user, ip, password=pwd,
 100                                            port=ssh_port)
 101             self.jump_connection.wait(timeout=600)
 102             LOG.debug("ssh jump host success!")
 103
 104         if self.jump_connection is not None:
 105             with open(self.recovery_script, "r") as stdin_file:
 106                 exit_status, stdout, stderr = self.jump_connection.execute(
 107                     "/bin/bash -s {0} {1} {2} {3}".format(
 108                         self.ipmi_ip, self.ipmi_user, self.ipmi_pwd, "on"),
 109                     stdin=stdin_file)
 110         else:
 111             exit_status, stdout = _execute_shell_command(
 112                 "/bin/bash -s {0} {1} {2} {3}".format(
 113                     self.ipmi_ip, self.ipmi_user, self.ipmi_pwd, "on"),
 114                 stdin=open(self.recovery_script, "r"))
 115
 116
 117 def _test():  # pragma: no cover
 118     host = {
 119         "ipmi_ip": "10.20.0.5",
 120         "ipmi_user": "root",
 121         "ipmi_pwd": "123456",
 122         "ip": "10.20.0.5",
 123         "user": "root",
 124         "key_filename": "/root/.ssh/id_rsa"
 125     }
 126     context = {"node1": host}
 127     attacker_cfg = {
 128         'fault_type': 'bear-metal-down',
 129         'host': 'node1',
 130     }
 131     ins = BaremetalAttacker(attacker_cfg, context)
 132     ins.setup()
 133     ins.inject_fault()
 134
 135
 136 if __name__ == '__main__':  # pragma: no cover
 137     _test()