mirror of
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273 lines
10 KiB
Python
Executable File
273 lines
10 KiB
Python
Executable File
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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from .cloudException import CloudRuntimeException, formatExceptionInfo
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import logging
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from subprocess import PIPE, Popen
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from signal import alarm, signal, SIGALRM, SIGKILL
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import sys
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import os
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class bash:
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def __init__(self, args, timeout=600):
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self.args = args
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logging.debug("execute:%s"%args)
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self.timeout = timeout
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self.process = None
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self.success = False
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self.run()
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def run(self):
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class Alarm(Exception):
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pass
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def alarm_handler(signum, frame):
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raise Alarm
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try:
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self.process = Popen(self.args, shell=True, stdout=PIPE, stderr=PIPE)
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if self.timeout != -1:
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signal(SIGALRM, alarm_handler)
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alarm(self.timeout)
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try:
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self.stdout, self.stderr = self.process.communicate()
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if self.timeout != -1:
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alarm(0)
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except Alarm:
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os.kill(self.process.pid, SIGKILL)
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raise CloudRuntimeException("Timeout during command execution")
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self.success = self.process.returncode == 0
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except:
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raise CloudRuntimeException(formatExceptionInfo())
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if not self.success:
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logging.debug("Failed to execute:" + self.getErrMsg())
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def isSuccess(self):
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return self.success
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def getStdout(self):
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return self.stdout.decode('utf-8').strip('\n')
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def getLines(self):
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return self.stdout.decode('utf-8').strip('\n').split('\n')
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def getStderr(self):
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return self.stderr.decode('utf-8').strip('\n')
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def getErrMsg(self):
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if self.isSuccess():
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return ""
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if self.getStderr() is None or self.getStderr() == "":
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return self.getStdout()
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else:
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return self.getStderr()
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def initLoging(logFile=None):
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try:
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if logFile is None:
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logging.basicConfig(level=logging.DEBUG)
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else:
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logging.basicConfig(filename=logFile, level=logging.DEBUG)
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except:
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logging.basicConfig(level=logging.DEBUG)
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def writeProgressBar(msg, result):
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output = "[%-6s]\n"%"Failed"
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if msg is not None:
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output = "%-30s"%msg
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elif result is True:
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output = "[%-2s]\n"%"OK"
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elif result is False:
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output = "[%-6s]\n"%"Failed"
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sys.stdout.write(output)
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sys.stdout.flush()
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class UnknownSystemException(Exception):
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"This Exception is raised if the current operating environment is unknown"
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pass
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class Distribution:
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def __init__(self):
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self.distro = "Unknown"
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self.release = "Unknown"
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if os.path.exists("/etc/fedora-release"):
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self.distro = "Fedora"
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elif os.path.exists("/etc/redhat-release"):
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version = open("/etc/redhat-release").readline()
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if (version.find("Red Hat Enterprise Linux Server release 6") != -1 or version.find("Scientific Linux release 6") != -1 or
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version.find("CentOS Linux release 6") != -1 or version.find("CentOS release 6.") != -1):
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self.distro = "RHEL6"
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elif (version.find("Red Hat Enterprise Linux Server release 7") != -1 or version.find("Scientific Linux release 7") != -1 or
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version.find("CentOS Linux release 7") != -1 or version.find("CentOS release 7.") != -1):
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self.distro = "RHEL7"
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elif (version.find("Red Hat Enterprise Linux Server release 8") != -1 or version.find("Scientific Linux release 8") != -1 or
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version.find("CentOS Linux release 8") != -1 or version.find("CentOS release 8.") != -1 or
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version.find("Linux release 8") != -1):
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self.distro = "RHEL8"
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elif (version.find("Red Hat Enterprise Linux Server release 9") != -1 or version.find("Scientific Linux release 9") != -1 or
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version.find("Red Hat Enterprise Linux release 9") != -1 or version.find("Linux release 9.") != -1 or
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version.find("Linux release 9") != -1):
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self.distro = "RHEL9"
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elif (version.find("Red Hat Enterprise Linux Server release 10") != -1 or version.find("Scientific Linux release 10") != -1 or
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version.find("Red Hat Enterprise Linux release 10") != -1 or version.find("Linux release 10.") != -1 or
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version.find("Linux release 10") != -1):
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self.distro = "RHEL10"
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elif version.find("CentOS") != -1:
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self.distro = "CentOS"
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else:
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self.distro = "RHEL5"
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elif os.path.exists("/etc/legal") and "Ubuntu" in open("/etc/legal").read(-1):
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self.distro = "Ubuntu"
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kernel = bash("uname -r").getStdout()
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if kernel.find("2.6.32") != -1:
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self.release = "10.04"
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self.arch = bash("uname -m").getStdout()
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elif os.path.exists("/usr/bin/lsb_release"):
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o = bash("/usr/bin/lsb_release -i")
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distributor = o.getStdout().split(":\t")[1]
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if "Debian" in distributor:
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# This obviously needs a rewrite at some point
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self.distro = "Ubuntu"
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else:
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raise UnknownSystemException(distributor)
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elif os.path.exists("/etc/os-release"):
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version = open("/etc/os-release").readline()
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distributor = version.split("=")[1].replace('"', '').strip()
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if "SUSE" in distributor or "SLES" in distributor:
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self.distro = "SUSE"
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else:
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raise UnknownSystemException(distributor)
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else:
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raise UnknownSystemException
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def getVersion(self):
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return self.distro
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def getRelease(self):
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return self.release
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def getArch(self):
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return self.arch
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class serviceOps:
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pass
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class serviceOpsRedhat(serviceOps):
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def isServiceRunning(self, servicename):
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try:
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o = bash("service " + servicename + " status")
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if "running" in o.getStdout() or "start" in o.getStdout() or "Running" in o.getStdout():
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return True
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else:
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return False
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except:
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return False
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def stopService(self, servicename,force=False):
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if self.isServiceRunning(servicename) or force:
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return bash("service " + servicename +" stop").isSuccess()
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return True
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def disableService(self, servicename):
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result = self.stopService(servicename)
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bash("chkconfig --del " + servicename)
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return result
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def startService(self, servicename,force=False):
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if not self.isServiceRunning(servicename) or force:
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return bash("service " + servicename + " start").isSuccess()
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return True
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def enableService(self, servicename,forcestart=False):
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bash("chkconfig --level 2345 " + servicename + " on")
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return self.startService(servicename,force=forcestart)
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def isKVMEnabled(self):
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if os.path.exists("/dev/kvm"):
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return True
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else:
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return False
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class serviceOpsUbuntu(serviceOps):
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def isServiceRunning(self, servicename):
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try:
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o = bash("sudo /usr/sbin/service " + servicename + " status")
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if "not running" in o.getStdout():
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return False
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else:
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return True
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except:
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return False
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def stopService(self, servicename,force=True):
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if self.isServiceRunning(servicename) or force:
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return bash("sudo /usr/sbin/service " + servicename +" stop").isSuccess()
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def disableService(self, servicename):
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result = self.stopService(servicename)
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bash("sudo update-rc.d -f " + servicename + " remove")
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return result
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def startService(self, servicename,force=True):
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if not self.isServiceRunning(servicename) or force:
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return bash("sudo /usr/sbin/service " + servicename + " start").isSuccess()
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def enableService(self, servicename,forcestart=True):
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bash("sudo update-rc.d -f " + servicename + " remove")
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bash("sudo update-rc.d -f " + servicename + " defaults")
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return self.startService(servicename,force=forcestart)
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def isKVMEnabled(self):
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return bash("kvm-ok").isSuccess()
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class serviceOpsRedhat7Later(serviceOps):
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def isServiceRunning(self, servicename):
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try:
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o = bash("systemctl is-active " + servicename)
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textout = o.getStdout()
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return "inactive" not in textout and "failed" not in textout
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except:
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return False
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def stopService(self, servicename,force=False):
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if self.isServiceRunning(servicename) or force:
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return bash("systemctl stop " + servicename).isSuccess()
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return True
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def disableService(self, servicename):
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result = self.stopService(servicename)
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bash("systemctl disable " + servicename)
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return result
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def startService(self, servicename,force=False):
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if not self.isServiceRunning(servicename) or force:
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return bash("systemctl start " + servicename).isSuccess()
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return True
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def enableService(self, servicename,forcestart=False):
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bash("systemctl enable " + servicename)
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return self.startService(servicename,force=forcestart)
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def isKVMEnabled(self):
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if os.path.exists("/dev/kvm"):
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return True
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else:
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return False
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class serviceOpsSUSE(serviceOpsRedhat7Later):
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pass
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