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:  # pylint: disable=broad-except
  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         # baremetal down need to recover even sla pass
  38         self.mandatory = True
  39         LOG.debug("config:%s context:%s", self._config, self._context)
  40         host = self._context.get(self._config['host'], None)
  41
  42         self.connection = ssh.SSH.from_node(host, defaults={"user": "root"})
  43         self.connection.wait(timeout=600)
  44         LOG.debug("ssh host success!")
  45
  46         jump_host_name = self._config.get("jump_host", None)
  47         self.jump_connection = None
  48         if jump_host_name is not None:
  49             jump_host = self._context.get(jump_host_name, None)
  50
  51             LOG.debug("jump_host ip:%s user:%s", jump_host['ip'], jump_host['user'])
  52             self.jump_connection = ssh.SSH.from_node(
  53                 jump_host,
  54                 defaults={"user": "root", "password": jump_host.get("password")}
  55             )
  56             self.jump_connection.wait(timeout=600)
  57             LOG.debug("ssh jump host success!")
  58
  59         self.host_ip = host['ip']
  60
  61         self.ipmi_ip = host.get("ipmi_ip", None)
  62         self.ipmi_user = host.get("ipmi_user", "root")
  63         self.ipmi_pwd = host.get("ipmi_password", None)
  64
  65         self.fault_cfg = BaseAttacker.attacker_cfgs.get('bare-metal-down')
  66         self.check_script = self.get_script_fullpath(
  67             self.fault_cfg['check_script'])
  68         self.inject_script = self.get_script_fullpath(self.fault_cfg['inject_script'])
  69         self.recovery_script = self.get_script_fullpath(
  70             self.fault_cfg['recovery_script'])
  71
  72         if self.check():
  73             self.setup_done = True
  74
  75     def check(self):
  76         with open(self.check_script, "r") as stdin_file:
  77             exit_status, stdout, stderr = self.connection.execute(
  78                 "sudo /bin/sh -s {0} -W 10".format(self.host_ip),
  79                 stdin=stdin_file)
  80
  81         LOG.debug("check ret: %s out:%s err:%s",
  82                   exit_status, stdout, stderr)
  83         if not stdout or "running" not in stdout:
  84             LOG.info("the host (ipmi_ip:%s) is not running!", self.ipmi_ip)
  85             return False
  86
  87         return True
  88
  89     def inject_fault(self):
  90         LOG.info("Inject fault START")
  91         cmd = "sudo /bin/bash -s {0} {1} {2} {3}".format(
  92             self.ipmi_ip, self.ipmi_user, self.ipmi_pwd, "off")
  93         with open(self.inject_script, "r") as stdin_file:
  94             if self.jump_connection is not None:
  95                 LOG.info("Power off node via IPMI")
  96                 self.jump_connection.execute(cmd, stdin=stdin_file)
  97             else:
  98                 _execute_shell_command(cmd, stdin=stdin_file)
  99         LOG.info("Inject fault END")
 100
 101     def recover(self):
 102         LOG.info("Recover fault START")
 103         cmd = "sudo /bin/bash -s {0} {1} {2} {3}".format(
 104             self.ipmi_ip, self.ipmi_user, self.ipmi_pwd, "on")
 105         with open(self.recovery_script, "r") as stdin_file:
 106             if self.jump_connection is not None:
 107                 self.jump_connection.execute(cmd, stdin=stdin_file)
 108             else:
 109                 _execute_shell_command(cmd, stdin=stdin_file)
 110         LOG.info("Recover fault END")