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
  43         self.connection = ssh.SSH.from_node(host, defaults={"user": "root"})
  44         self.connection.wait(timeout=600)
  45         LOG.debug("ssh host success!")
  46         self.host_ip = host['ip']
  47
  48         self.ipmi_ip = host.get("ipmi_ip", None)
  49         self.ipmi_user = host.get("ipmi_user", "root")
  50         self.ipmi_pwd = host.get("ipmi_pwd", None)
  51
  52         self.fault_cfg = BaseAttacker.attacker_cfgs.get('bare-metal-down')
  53         self.check_script = self.get_script_fullpath(
  54             self.fault_cfg['check_script'])
  55         self.recovery_script = self.get_script_fullpath(
  56             self.fault_cfg['recovery_script'])
  57
  58         if self.check():
  59             self.setup_done = True
  60
  61     def check(self):
  62         with open(self.check_script, "r") as stdin_file:
  63             exit_status, stdout, stderr = self.connection.execute(
  64                 "/bin/sh -s {0} -W 10".format(self.host_ip),
  65                 stdin=stdin_file)
  66
  67         LOG.debug("check ret: %s out:%s err:%s",
  68                   exit_status, stdout, stderr)
  69         if not stdout or "running" not in stdout:
  70             LOG.info("the host (ipmi_ip:%s) is not running!", self.ipmi_ip)
  71             return False
  72
  73         return True
  74
  75     def inject_fault(self):
  76         exit_status, stdout, stderr = self.connection.execute(
  77             "shutdown -h now")
  78         LOG.debug("inject fault ret: %s out:%s err:%s",
  79                   exit_status, stdout, stderr)
  80         if not exit_status:
  81             LOG.info("inject fault success")
  82
  83     def recover(self):
  84         jump_host_name = self._config.get("jump_host", None)
  85         self.jump_connection = None
  86         if jump_host_name is not None:
  87             host = self._context.get(jump_host_name, None)
  88
  89             LOG.debug("jump_host ip:%s user:%s", host['ip'], host['user'])
  90             self.jump_connection = ssh.SSH.from_node(
  91                 host,
  92                 # why do we allow pwd for password?
  93                 defaults={"user": "root", "password": host.get("pwd")}
  94             )
  95             self.jump_connection.wait(timeout=600)
  96             LOG.debug("ssh jump host success!")
  97
  98         if self.jump_connection is not None:
  99             with open(self.recovery_script, "r") as stdin_file:
 100                 self.jump_connection.execute(
 101                     "/bin/bash -s {0} {1} {2} {3}".format(
 102                         self.ipmi_ip, self.ipmi_user, self.ipmi_pwd, "on"),
 103                     stdin=stdin_file)
 104         else:
 105             _execute_shell_command(
 106                 "/bin/bash -s {0} {1} {2} {3}".format(
 107                     self.ipmi_ip, self.ipmi_user, self.ipmi_pwd, "on"),
 108                 stdin=open(self.recovery_script, "r"))
 109
 110
 111 def _test():  # pragma: no cover
 112     host = {
 113         "ipmi_ip": "10.20.0.5",
 114         "ipmi_user": "root",
 115         "ipmi_pwd": "123456",
 116         "ip": "10.20.0.5",
 117         "user": "root",
 118         "key_filename": "/root/.ssh/id_rsa"
 119     }
 120     context = {"node1": host}
 121     attacker_cfg = {
 122         'fault_type': 'bear-metal-down',
 123         'host': 'node1',
 124     }
 125     ins = BaremetalAttacker(attacker_cfg, context)
 126     ins.setup()
 127     ins.inject_fault()
 128
 129
 130 if __name__ == '__main__':  # pragma: no cover
 131     _test()