创建自定义自启动LINUX服务service

  1.将init_daemon放入程序开始处

void init_daemon() { int pid; int i; if(pid=fork()) exit(0);//是父进程，结束父进程 else if(pid< 0) exit(1);//fork失败，退出 //是第一子进程，后台继续执行 setsid();//第一子进程成为新的会话组长和进程组长 //并与控制终端分离 if(pid=fork()) exit(0);//是第一子进程，结束第一子进程 else if(pid< 0) exit(1);//fork失败，退出 //是第二子进程，继续 //第二子进程不再是会话组长 for(i=0;i< NOFILE;++i)//关闭打开的文件描述符 close(i); //chdir("/tmp");//改变工作目录到/tmp umask(0);//重设文件创建掩模 return; }

  2.将chefd文件(如下)放进etc/init.d

#!/bin/bash # # chef_service This shell script takes care of starting and stopping # chef_test system. # # chkconfig: 35 95 85 # description: chef_test system. # processname: chef # config: /usr/local/chef/cfg/chef.xml # pidfile: /var/run/chef.pid # Source function library. . /etc/rc.d/init.d/functions # Source networking configuration. [ -f /etc/sysconfig/network ] && . /etc/sysconfig/network export MYCOMM_INSTALL_PATH=/usr/local/chef RETVAL=0 prog="chef_test" chef_daemon="$MYCOMM_INSTALL_PATH/bin/$prog" pid_file="/var/run/chef.pid" start() { # Start daemons. echo -n $"Starting $prog: " daemon $chef_daemon RETVAL=$? echo [ $RETVAL -eq 0 ] return $RETVAL } stop() { # Stop daemons. #if test -f $pid_file ; then echo -n $"Shutting down $prog: " killproc $prog #-SIGTERM RETVAL=$? echo [ $RETVAL -eq 0 ] #&& rm -f $pid_file #fi return $RETVAL } # See how we were called. case "$1" in start) start ;; stop) stop ;; restart) stop start RETVAL=$? ;; status) status chef_test RETVAL=$? ;; *) echo $"Usage: $0 {start|stop|restart|status}" exit 1 esac exit $RETVAL

  3.

  cd /etc/init.d

  chmod a+x chefd

  chkconfig --add chefd

  chkconfig --list | grep chefd

  4.

  service chef start