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##############################################################################
# Copyright (c) 2015 Huawei Technologies Co.,Ltd. and others
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
from __future__ import absolute_import
import logging
import yardstick.ssh as ssh
from yardstick.benchmark.scenarios.availability.attacker.baseattacker import \
BaseAttacker
LOG = logging.getLogger(__name__)
class ProcessAttacker(BaseAttacker):
__attacker_type__ = 'kill-process'
def setup(self):
LOG.debug("config:%s context:%s", self._config, self._context)
host = self._context.get(self._config['host'], None)
self.connection = ssh.SSH.from_node(host, defaults={"user": "root"})
self.connection.wait(timeout=600)
LOG.debug("ssh host success!")
self.service_name = self._config['process_name']
self.fault_cfg = BaseAttacker.attacker_cfgs.get('kill-process')
self.check_script = self.get_script_fullpath(
self.fault_cfg['check_script'])
self.inject_script = self.get_script_fullpath(
self.fault_cfg['inject_script'])
self.recovery_script = self.get_script_fullpath(
self.fault_cfg['recovery_script'])
self.data[self.service_name] = self.check()
def check(self):
with open(self.check_script, "r") as stdin_file:
exit_status, stdout, stderr = self.connection.execute(
"sudo /bin/sh -s {0}".format(self.service_name),
stdin=stdin_file)
if stdout:
LOG.info("check the environment success!")
return int(stdout.strip('\n'))
else:
LOG.error(
"the host environment is error, stdout:%s, stderr:%s",
stdout, stderr)
return False
def inject_fault(self):
with open(self.inject_script, "r") as stdin_file:
exit_status, stdout, stderr = self.connection.execute(
"sudo /bin/sh -s {0}".format(self.service_name),
stdin=stdin_file)
def recover(self):
with open(self.recovery_script, "r") as stdin_file:
exit_status, stdout, stderr = self.connection.execute(
"sudo /bin/bash -s {0} ".format(self.service_name),
stdin=stdin_file)
if exit_status:
LOG.info("Fail to restart service!")
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