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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)
ip = host.get("ip", None)
user = host.get("user", "root")
ssh_port = host.get("ssh_port", ssh.DEFAULT_PORT)
key_filename = host.get("key_filename", "~/.ssh/id_rsa")
self.connection = ssh.SSH(user, ip, key_filename=key_filename,
port=ssh_port)
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'])
if self.check():
self.setup_done = True
def check(self):
with open(self.check_script, "r") as stdin_file:
exit_status, stdout, stderr = self.connection.execute(
"/bin/sh -s {0}".format(self.service_name),
stdin=stdin_file)
if stdout:
LOG.info("check the envrioment success!")
return True
else:
LOG.error(
"the host envrioment 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(
"/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(
"/bin/sh -s {0} ".format(self.service_name),
stdin=stdin_file)
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