• 案例十:shell编写nginx服务启动程序


    使用源码包安装的Nginx没办法使用"service nginx start"或"/etc/init.d/nginx start"进行操作和控制,所以写了以下的服务控制脚本

    选项有:

      start    启动
    
      stop    停止
    
      reload   重载
    
      restart    重启
    
      status   状态
    
      test    检查配置文件
    

    创建脚本文件并添加执行权限

      touch /etc/init.d/nginx
    
      chmod +x /etc/init.d/nginx
    

    编写脚本内容

      #!/bin/bash
    
      # chkconfig: - 85 15
    
      # description: Nginx server control script
    
      # processname: nginx
    
      # config file: /usr/local/nginx/conf/nginx.conf
    
      # pid file: /usr/local/nginx/logs/nginx.pid
    
      #
    
      # eastmoney public tools
    
      # version: v1.0.0
    
      # create by XuHoo, 2016-9-14
    
      #
    
      # source function library
    
      . /etc/rc.d/init.d/functions
    
      NGINX_NAME="nginx"
    
      NGINX_PROG="/usr/local/sbin/nginx"
    
      NGINX_PID_FILE="/usr/local/nginx/logs/nginx.pid"
    
      NGINX_CONF_FILE="/usr/local/nginx/conf/nginx.conf"
    
      NGINX_LOCK_FILE="/var/lock/subsys/nginx.lock"
    
      # check current user
    
      [ "$USER" != "root" ] && exit 1
    
      start() {
    
      status
    
      if [[ $? -eq 0 ]]; then
    
      echo $"Nginx (PID $(cat $NGINX_PID_FILE)) already started."
    
      return 1
    
      fi
    
      echo -n $"Starting $NGINX_NAME: "
    
      daemon $NGINX_PROG -c $NGINX_CONF_FILE
    
      retval=$?
    
      echo
    
      [ $retval -eq 0 ] && touch $NGINX_LOCK_FILE
    
      return $retval
    
      }
    
      stop() {
    
      status
    
      if [[ $? -eq 1 ]]; then
    
      echo "Nginx server already stopped."
    
      return 1
    
      fi
    
      echo -n $"Stoping $NGINX_NAME: "
    
      killproc $NGINX_PROG
    
      retval=$?
    
      echo
    
      [ $retval -eq 0 ] && rm -f $NGINX_LOCK_FILE
    
      return $retval
    
      }
    
      restart() {
    
      stop
    
      sleep 1
    
      start
    
      retval=$?
    
      return $retval
    
      }
    
      reload() {
    
      echo -n $"Reloading $NGINX_NAME: "
    
      killproc $NGINX_PROG -HUP
    
      retval=$?
    
      echo
    
      return $retval
    
      }
    
      status() {
    
      netstat -anpt | grep "/nginx" | awk '{print $6}' &> /dev/null
    
      if [[ $? -eq 0 ]]; then
    
      if [[ -f $NGINX_LOCK_FILE ]]; then
    
      return 0
    
      else
    
      return 1
    
      fi
    
      fi
    
      return 1
    
      }
    
      _status() {
    
      status
    
      if [[ $? -eq 0 ]]; then
    
      state=`netstat -anpt | grep "/nginx" | awk '{ print $6 }'`
    
      echo $"Nginx server status is: $state"
    
      else
    
      echo "Nginx server is not running"
    
      fi
    
      }
    
      test() {
    
      $NGINX_PROG -t -c $NGINX_CONF_FILE
    
      retval=$?
    
      return $retval
    
      }
    
      case "$1" in
    
      start)
    
      start
    
      ;;
    
      stop)
    
      stop
    
      ;;
    
      reload)
    
      reload
    
      ;;
    
      restart)
    
      restart
    
      ;;
    
      status)
    
      _status
    
      ;;
    
      test)
    
      test
    
      ;;
    
      *)
    
      echo "Usage: { start | stop | reload | restart | status | test }"
    
      exit 1
    
      esac
    

    将脚本添加到系统服务并设置开机启动

      chkconfig --add nginx
    
      chkconfig --level 3 nginx on
    
    脚本二
      [root@localhost ~]# cd /usr/local/nginx/conf/
    
      [root@localhost conf]# ls
    
      fastcgi.conf fastcgi_params koi-utf mime.types nginx.conf scgi_params uwsgi_params win-utf
    
      fastcgi.conf.default fastcgi_params.default koi-win mime.types.default nginx.conf.default scgi_params.default uwsgi_params.default
    

    备份主配置文件

      [root@localhost conf]# cp nginx.conf nginx.conf.origin
    
      [root@localhost conf]# vim nginx.conf
    
      去除#pid logs/nginx.pid;前面#号
    
      [root@localhost conf]# netstat -anpt | grep 80
    
      tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 19108/nginx
    
      [root@localhost conf]# kill -3 19108
    
      [root@localhost conf]# netstat -anpt | grep 80
    
      [root@localhost conf]# nginx
    
      [root@localhost conf]# netstat -anpt | grep 80
    
      tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 19864/nginx
    
      [root@localhost conf]# cd ../logs/
    
      [root@localhost logs]# ls
    
      access.log error.log nginx.pid
    
      [root@localhost logs]# cat nginx.pid
    
      19864
    

    编辑写服务脚本

      [root@localhost ~]# vim /etc/init.d/nginx
    
      可以使用的选项有:
    
      start    启动
    
      stop    停止
    
      reload   重载
    
      restart    重启
    
      status   状态
    
      test    检查配置文件
    
      #!/bin/bash
    
      #chkconfig: 2345 99 20
    
      #description:Nginx Server Control Scripts shell
    
      PROG="/usr/local/nginx/sbin/nginx"
    
      PIDF="/usr/local/nginx/logs/nginx.pid"
    
      case "$1" in
    
      start)
    
      if [ -f $PIDF ];
    
      then
    
      echo "Nginx正在运行…"
    
      else
    
      $PROG
    
      fi
    
      ;;
    
      stop)
    
      if [ -f $PIDF ];
    
      then
    
      kill -3 $(cat $PIDF)
    
      rm -f $PIDF
    
      else
    
      echo "Nginx正在停止…"
    
      fi
    
      ;;
    
      restart)
    
      $0 stop
    
      $0 start
    
      ;;
    
      reload)
    
      if [ -f $PIDF ];
    
      then
    
      kill -1 $(cat $PIDF)
    
      else
    
      echo "Nginx正在停止…重新加载"
    
      fi
    
      ;;
    
      status)
    
      if [ -f $PIDF ];
    
      then
    
      echo "Nginx正在运行"
    
      else
    
      echo "Nginx停止"
    
      fi
    
      ;;
    
      *)
    
      echo "Usage: $0 (start|stop|restart|reload|status)"
    
      exit 1
    
      esac
    
      exit 0
    

    脚本文件并添加执行权限

      [root@localhost ~]# chmod +x /etc/init.d/nginx
    
        将脚本添加到系统服务并设置开机启动
    
      [root@localhost ~]# chkconfig --add nginx
    
      添加为服务启动项
    
      [root@localhost ~]# chkconfig --list nginx
    
      nginx 0:关闭 1:关闭 2:启用 3:启用 4:启用 5:启用 6:关闭
    
      [root@localhost ~]# chkconfig --level 3 nginx on
    
      测试脚本是否能够执行
    
      [root@localhost ~]# service nginx start
    
      Nginx正在运行…
    
      [root@localhost ~]# service nginx restart
    
      [root@localhost ~]# service nginx stop
    
      [root@localhost ~]# service nginx stop
    
      Nginx正在停止…
    
      [root@localhost ~]# service nginx start
    
      [root@localhost ~]# service nginx status
    
      Nginx正在运行
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  • 原文地址:https://www.cnblogs.com/linuxprobe-sarah/p/11242566.html
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