centos/rhel下实现nginx自启动脚本实例

通常在centos、rhel的os下，我们大多是通过chkconfig来管理服务，比如开机自动启动服务之类。
这里给大家介绍一个很好用的nginx启动脚本。以及简单的使用，如下：

1. 执行如下命令：

vim /etc/init.d/nginxd

2.输入如下内容：

注意：该文件中的如下几个变量，都需要根据你实际的目录来改写。

nginx="/usr/local/nginx/sbin/nginx"  ##nginx的可执行文件路径
lockfile="/var/nginx/nginx.lock"   ##需要先创建/var/nginx目录
nginx_conf_file="/etc/nginx/nginx.conf" ##需要先创建该配置文件
#!/bin/sh 
# 
# nginx - this script starts and stops the nginx daemon 
# 
# chkconfig:  - 85 15 
# description: nginx is an http(s) server, http(s) reverse \ 
#        proxy and imap/pop3 proxy server 
# processname: nginx 
# source function library. 
. /etc/rc.d/init.d/functions 
# source networking configuration. 
. /etc/sysconfig/network 
# check that networking is up. 
[ "$networking" = "no" ] && exit 0 
nginx="/usr/local/nginx/sbin/nginx" 
prog=$(basename $nginx) 
sysconfig="/etc/sysconfig/$prog" 
lockfile="/var/nginx/nginx.lock" 
pidfile="/var/nginx/${prog}.pid" 
nginx_conf_file="/etc/nginx/nginx.conf" 
[ -f $sysconfig ] && . $sysconfig 
start() { 
  [ -x $nginx ] || exit 5 
  [ -f $nginx_conf_file ] || exit 6 
  echo -n $"starting $prog: " 
  daemon $nginx -c $nginx_conf_file 
  retval=$? 
  echo 
  [ $retval -eq 0 ] && touch $lockfile 
  return $retval 
} 
stop() { 
  echo -n $"stopping $prog: " 
  killproc -p $pidfile $prog 
  retval=$? 
  echo 
  [ $retval -eq 0 ] && rm -f $lockfile 
  return $retval 
} 
restart() { 
  configtest_q || return 6 
  stop 
  start 
} 
reload() { 
  configtest_q || return 6 
  echo -n $"reloading $prog: " 
  killproc -p $pidfile $prog -hup 
  echo 
} 
configtest() { 
  $nginx -t -c $nginx_conf_file 
} 
configtest_q() { 
  $nginx -t -q -c $nginx_conf_file 
} 
rh_status() { 
  status $prog 
} 
rh_status_q() { 
  rh_status >/dev/null 2>&1 
} 
# upgrade the binary with no downtime. 
upgrade() { 
  local oldbin_pidfile="${pidfile}.oldbin" 
  configtest_q || return 6 
  echo -n $"upgrading $prog: " 
  killproc -p $pidfile $prog -usr2 
  retval=$? 
  sleep 1 
  if [[ -f ${oldbin_pidfile} && -f ${pidfile} ]]; then 
    killproc -p $oldbin_pidfile $prog -quit 
    success $"$prog online upgrade" 
    echo  
    return 0 
  else 
    failure $"$prog online upgrade" 
    echo 
    return 1 
  fi 
} 
# tell nginx to reopen logs 
reopen_logs() { 
  configtest_q || return 6 
  echo -n $"reopening $prog logs: " 
  killproc -p $pidfile $prog -usr1 
  retval=$? 
  echo 
  return $retval 
} 
case "$1" in 
  start) 
    rh_status_q && exit 0 
    $1 
    ;; 
  stop) 
    rh_status_q || exit 0 
    $1 
    ;; 
  restart|configtest|reopen_logs) 
    $1 
    ;; 
  force-reload|upgrade)  
    rh_status_q || exit 7 
    upgrade 
    ;; 
  reload) 
    rh_status_q || exit 7 
    $1 
    ;; 
  status|status_q) 
    rh_$1 
    ;; 
  condrestart|try-restart) 
    rh_status_q || exit 7 
    restart 
    ;; 
  *) 
    echo $"usage: $0 {start|stop|reload|configtest|status|force-reload|upgrade|restart|reopen_logs}" 
    exit 2 
esac 

保存完毕之后，可以执行以下命令来启动nginx

chmod 777 /etc/init.d/nginxd 
/etc/init.d/nginxd start

3. 配置开机启动

执行以下命令：

chkconfig nginxd on

可以以下命令查看是否成功

chkconfig --list | grep nginxd