nginx设置开机自启动

1、路径下启动：./nginx                         配置更改后重启：./nginx  -s  reload

2、指定配置文件启动 /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf

3、指定配置文件重启 /usr/local/nginx/sbin/nginx -s reload -c /usr/local/nginx/conf/nginx.conf

一、普通方法（不建议）

在/etc/init.d下创建文件nginx

[root@localhost ~]# vim /etc/init.d/nginx
参考内容如下：

#!/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
# config:      /etc/nginx/nginx.conf
# config:      /etc/sysconfig/nginx
# pidfile:     /var/run/nginx.pid
# Source function library.
. /etc/rc.d/init.d/functions
# Source networking configuration.
. /etc/sysconfig/network
# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0
nginx="/mnt/nginx/sbin/nginx"
prog=$(basename $nginx)
NGINX_CONF_FILE="/mnt/nginx/nginx.conf"
[ -f /etc/sysconfig/nginx ] && . /etc/sysconfig/nginx
lockfile=/var/lock/subsys/nginx
make_dirs() {
   # make required directories
   user=`$nginx -V 2>&1 | grep "configure arguments:" | sed 's/[^*]*--user=\([^ ]*\).*/\1/g' -`
   if [ -z "`grep $user /etc/passwd`" ]; then
       useradd -M -s /bin/nologin $user
   fi
   options=`$nginx -V 2>&1 | grep 'configure arguments:'`
   for opt in $options; do
       if [ `echo $opt | grep '.*-temp-path'` ]; then
           value=`echo $opt | cut -d "=" -f 2`
           if [ ! -d "$value" ]; then
               # echo "creating" $value
               mkdir -p $value && chown -R $user $value
           fi
       fi
   done
}
start() {
    [ -x $nginx ] || exit 5
    [ -f $NGINX_CONF_FILE ] || exit 6
    make_dirs
    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 $prog -QUIT
    retval=$?
    echo
    [ $retval -eq 0 ] && rm -f $lockfile
    return $retval
}
restart() {
    configtest || return $?
    stop
    sleep 1
    start
}
reload() {
    configtest || return $?
    echo -n $"Reloading $prog: "
    killproc $nginx -HUP
    RETVAL=$?
    echo
}
force_reload() {
    restart
}
configtest() {
  $nginx -t -c $NGINX_CONF_FILE
}
rh_status() {
    status $prog
}
rh_status_q() {
    rh_status >/dev/null 2>&1
}
case "$1" in
    start)
        rh_status_q && exit 0
        $1
        ;;
    stop)
        rh_status_q || exit 0
        $1
        ;;
    restart|configtest)
        $1
        ;;
    reload)
        rh_status_q || exit 7
        $1
        ;;
    force-reload)
        force_reload
        ;;
    status)
        rh_status
        ;;
    condrestart|try-restart)
        rh_status_q || exit 0
            ;;
    *)
        echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}"
        exit 2
esac

注意配置：

nginx="/usr/local/nginx/sbin/nginx"  //修改成nginx执行程序的路径
NGINX_CONF_FILE="/usr/local/nginx/conf/nginx.conf"  //修改成nginx.conf文件的路径

设置文件的权限

[root@localhost ~]# chmod a+x /etc/init.d/nginx   //

至此就可以通过指令控制启动停止

/etc/init.d/nginx start
/etc/init.d/nginx stop

上面的方法完成了使用脚本管理nginx服务的功能，但还是不太方便。

将nginx服务加入chkconfig管理列表：

[root@localhost ~]# chkconfig --add /etc/init.d/nginx

加完之后就可以使用service对nginx进行启动/停止/重启等操作了：

service nginx start
service nginx stop
service nginx restart

最后设置开机自动启动：

[root@localhost ~]# chkconfig nginx on

 二、简单方法（推荐）

在/etc/rc.d/rc.local中添加nginx启动命令行：

/usr/local/nginx/sbin/nginx

如下图所示：

赋权：

chmod +x /etc/rc.d/rc.local

重启reboot即可