memcached startup script written by Python

Python writes memcached startup script

First, the RC script start, stop, restart, status method

#/usr/bin/env python# -*- coding:utf-8 -*-#  @time    :2018/1/12  19:11#  @Author  :FengXiaoqing#  @file    :rc.pyimport osimport sysfrom  subprocess import popen,pipeclass process (object):     "memcached  rc script '     def __init__ (self,name,program,args,workdir):         self.name = name         Self.program = program        self.args = args         self.workdir = workdir    def  _init (self):         "/var/tmp/memcached"          if not os.path.exists (Self.workdir):           &nBsp; os.mkdir (Self.workdir)              Os.chdir (Self.workdir)     def _pidfile (self):          '/var/tmp/memcached/memcached.pid '         return  Os.path.join (Self.workdir, "%s.pid"  % self.name)     def _writhpid (self):         if self.pid:             with open (Self._pidfile (), ' W ')  as fd:                 fd.write (str (self.pid))      def start (self):         pid = self._getpid ( )         if pid:             print "%s is already runnig ..."  % self.name             sys.exit ()         self._init ()          cmd = self.program +  '   '  + self.args         p = popen (cmd,stdout=pipe,shell=true)          self.pid = p.pid         Self._writhpid ()         print  "%s start sucessful ..."  % self.name    def _getpid (self):         p = popen ([' pidof ', self.name],stdout = pipe)          pid = p.stdout.read (). Strip ()          Return pid   &nbsP;def stop (self):         pid = self._getpid ()          if pid:             os.kill (int (PID),             ) If os.path.exists (Self._pidfile ()):                 os.remove (Self._pidfile ())              print  ("%S IS STOPPED .")  % self.name    def restart (self):         self.stop ()         self.start ()     def  status (self):         pid = self._getpid ()          if pid:            print  "%s is already running ..."  %  self.name        else:             print  "%s is not running ..."  % self.name     def _help (self):        print  ("Usage:  %s {start|stop|status|restart} ")  % __file__def main ():     name  =  ' memcached '     prog =  '/usr/bin/memcached '      args =  '-u nobody -p 11211 -c 1024 -m 64 '      wd =  '/var/tmp/memcached '     pm = process (name = name,                  program=prog,                  args=args,                  WORKDIR=WD)      try:        cmd = sys.argv[1]     except indexerror,e:        print  ("Option  error" )         sys.exit ()     if cmd ==  ' Start ':         pm.start ()     elif cmd ==   ' Stop ':         pm.stop ()     elif cmd  ==  ' restart ':         pm.restart ()      elif cmd ==  ' status ':         pm.status ()      else:pm._heLP () if __name__ ==  ' __main__ ':     main () 

Second, RC script (start in daemon)

#/usr/bin/env python# -*- coding:utf-8 -*-#  @time    :2018/1/12  21:18#  @Author  :FengXiaoqing#  @file    :rc-d.pyimport osimport sysfrom  subprocess import popen,pipeclass process (object):     "memcached  rc script '     args = {' USER ': ' memcached ',              ' PORT ':11211,              ' Maxconn ':1024,              ' CACHESIZE ':64,             ' OPTIONS ':  ' '}    def __init__ (self,name,program,workdir):         self.name = name        self.program =  program   &Nbsp;    self.workdir = workdir    def _init (self):          '/var/tmp/memcached '          if not os.path.exists (Self.workdir):             os.mkdir (Self.workdir)              os.chdir (Self.workdir)     def _pidfile (self):          '/var/tmp/memcached/memcached.pid '          Return os.path.join (Self.workdir, "%s.pid"  % self.name)     def _ Writhpid (self):        if self.pid:             with open (Self._pidfile (), ' W ')  as fd:         &nbSp;       fd.write (str (self.pid))     def _readconf (self,f):         with open (f)  as fd:             lines = fd.readlines ()              return dict ([I.strip (). Replace (' "', '). Split (' = ')   For i in lines])     def _parseargs (self):         conf = self._readconf ('/etc/sysconfig/memcached ')          if  ' USER '  in conf:             self.args[' user '] = conf[' user ']         if  ' PORT '  in conf:             self.args[' PORT '] =&NBsp;conf[' PORT ']        if  ' maxconn '  in conf:             self.args[' MAXCONN '] = conf[' Maxconn ']        if  ' CACHESIZE '  in conf:             self.args[' CACHESIZE '] = conf[' CACHESIZE ']        options = ['-u ', self.args[' USER '],                     '- P ', self.args[' PORT '],                     '-M ', self.args[' Maxconn '],                     '-C ', self.args[' CACHESIZE ']]          return options    def start (self):         pid  = self._getpid ()         if pid:             print  "%s is already runnig ..."  % self.name            sys.exit ()          self._init ()         cmd  = [self.program]+self._parseargs () +['-d ', '-P ', Self._pidfile ()]         p = popen (cmd,stdout=pipe)         print  "%s  start sucessful. "  % self.name    def _getpid (self):         p = popen ([' pidof ', self.name],stdout = pipe)        &Nbsp; pid = p.stdout.read (). Strip ()         return  Pid    def stop (self):         pid =  self._getpid ()         if pid:             os.kill (int (PID),         )     if os.path.exists (Self._pidfile ()):                 os.remove (Self._pidfile ())              print  ("%S IS STOPPED .")  % self.name    def restart (self):         self.stop ()         self.start ()     def  status (self):     &nbsP;   pid = self._getpid ()         if pid:             print  "%s is already  running ... " % self.name        else:             print  "%s is not running ..."  %  self.name    def help (self):         print  ("Usage: %s {start|stop|status|restart}")  % __file__def main ():     name =  ' memcached '     prog =  '/usr/bin/memcached '     wd =  '/var/tmp/memcached '     pm = process (name  = name,                  program=prog,&nBsp;                workdir=wd )     try:        cmd = sys.argv[1]     except IndexError,e:        print  ("Option   error ")         sys.exit ()     if  cmd ==  ' Start ':         pm.start ()      elif cmd ==  ' Stop ':         pm.stop ()      elif cmd ==  ' restart ':         pm.restart ()      elif cmd ==  ' status ':         Pm.status ()     else:        pm.help () if __ name__ ==  ' __main__ ':     main () 

memcached startup script written by Python