Nginx支持web界面执行bash脚本

一直以来都是在终端执行shell等脚本，那web界面是否也可以这样，当然也是可以的
本文以centos 6为例安装配置

1. 安装spawn-fcgi
   wget https://github.com/lighttpd/spawn-fcgi/archive/spawn-fcgi-1.6.4.zip
   unzip spawn-fcgi-1.6.4.zip && rm spawn-fcgi-1.6.4.zip 
   mv spawn-fcgi-spawn-fcgi-1.6.4/ spawn-fcgi
   cd spawn-fcgi/
   ./autogen.sh 
   ./configure 
   make && make install
2. 安装fcgiwrap
   yum -y install fcgi fcgi-devel nginx
   wget https://github.com/gnosek/fcgiwrap/archive/1.1.0.zip
   unzip 1.1.0.zip 
   rm 1.1.0.zip 
   mv fcgiwrap-1.1.0/ fcgiwrap
   cd fcgiwrap/
   autoreconf -i
   ./configure 
   make && make install
3. 添加fcgiwrap 启动脚本
   脚本启用用户要和你nginx启动用户一致，注意下脚本中路径及启动用户
   vim /etc/init.d/fcgiwrap

   #! /bin/bash
   ### BEGIN INIT INFO
   # Provides:          fcgiwrap
   # Required-Start:    $remote_fs
   # Required-Stop:     $remote_fs
   # Should-Start:
   # Should-Stop:
   # Default-Start:     2 3 4 5
   # Default-Stop:      0 1 6
   # Short-Description: FastCGI wrapper
   # Description:       Simple server for running CGI applications over FastCGI
   ### END INIT INFO
   
   PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
   SPAWN_FCGI="/usr/local/bin/spawn-fcgi"
   DAEMON="/usr/local/sbin/fcgiwrap"
   NAME="fcgiwrap"
   
   PIDFILE="/var/run/$NAME.pid"
   
   FCGI_SOCKET="/tmp/$NAME.socket"
   FCGI_USER="nginx"
   FCGI_GROUP="nginx"
   FORK_NUM=5
   SCRIPTNAME=/etc/init.d/$NAME
   
   case "$1" in
       start)
           echo -n "Starting $NAME... "
   
           PID=`pidof $NAME`
           if [ ! -z "$PID" ]; then
               echo " $NAME already running"
               exit 1
           fi
   
           $SPAWN_FCGI -u $FCGI_USER -g $FCGI_GROUP -s $FCGI_SOCKET -P $PIDFILE -F $FORK_NUM -f $DAEMON
   
           if [ "$?" != 0 ]; then
               echo " failed"
               exit 1
           else
               echo " done"
           fi
       ;;
   
       stop)
           echo -n "Stoping $NAME... "
   
           PID=`pidof $NAME`
           if [ ! -z "$PID" ]; then
               kill `pidof $NAME`
               if [ "$?" != 0 ]; then
                   echo " failed. re-quit"
                   exit 1
               else
                   rm -f $pid
                   echo " done"
               fi
           else
               echo "$NAME is not running."
               exit 1
           fi
       ;;
   
       status)
           PID=`pidof $NAME`
           if [ ! -z "$PID" ]; then
               echo "$NAME (pid $PID) is running..."
           else
               echo "$NAME is stopped"
               exit 0
           fi
       ;;
   
       restart)
           $SCRIPTNAME stop
           sleep 1
           $SCRIPTNAME start
       ;;
   
       *)
           echo "Usage: $SCRIPTNAME {start|stop|restart|status}"
           exit 1
       ;;
   esac

   fcgiwrap

   chmod +x /etc/init.d/fcgiwrap

4. 启动
   chkconfig --add fcgiwrap
   chkconfig --level 2345 fcgiwrap on
   ./etc/init.d/fcgiwrap restart
5. nginx配置
   测试环境编辑/etc/nginx/conf.d/default.conf，添加

       location ~ ^/cgi-bin/cgi/.*\.(cgi|sh) {  #这里的后缀匹配根据需要修改，可以使用统一cgi后缀
           gzip off;
           fastcgi_pass unix:/tmp/fcgiwrap.socket;
           fastcgi_index index.cgi;
           include fastcgi_params;
           fastcgi_param  SCRIPT_NAME $document_root$fastcgi_script_name;
       }

   重启nginx：
   nginx -s reload
   mkdir -p /usr/share/nginx/html/cgi-bin 放置首页html
   mkdir -p /usr/share/nginx/html/cgi-bin/cgi 放置脚本

6. 脚本测试
   vim  /usr/share/nginx/html/cgi-bin/cgi/disk.cgi

   #!/bin/bash
   echo "Content-Type:text/html;charset=utf-8"
   echo ""
   #前3行必须是这个格式，html代码使用echo，linux命令和脚本语法一样
   
   echo ‘<div style="padding-left:10px;">‘
   echo ‘<h1 style="color:red;border-left:4px solid;padding:4px;">硬盘使用情况</h1>‘
   echo ‘<h5>‘
   dd=`date`
   echo "统计时间: $dd"
   echo ‘</h5>‘
   echo ‘<pre style="border-left: 4px solid rgb(12, 40, 245);padding:5px">‘
   df -hT
   echo ‘</pre>‘

   disk.cgi

   访问：http://your-ip/cgi-bin/cgi/disk.cgi