Lua是一个小巧的脚本语言, 其设计目的是为了嵌入应用程序中，从而为应用程序提供灵活的扩展和定制功能

一、安装lua解释器 LuaJIT

  1. 1、安装LuaJIT     
  1. wget http://luajit.org/download/LuaJIT-2.0.5.tar.gz
  2. tar xf LuaJIT-2.0.5.tar.gz
  3. cd LuaJIT-2.0.5/
  4. make install PREFIX=/usr/local/luajit
  1. 2、导出LuaJIT的库文件         
  1. vim /etc/ld.so.conf.d/luajit.conf        
  3. /usr/local/luajit/lib
  1. ldconfig
  1.             <br />    3、配置luajit的环境变量        
  1. vim /etc/profile
  3. export LUAJIT_LIB=/usr/local/luajit/lib
  4. export LUAJIT_INC=/usr/local/luajit/include/luajit-2.0
  1. source /etc/profile
  1. <br />    4、测试解释器         
  1. lua
  2. Lua 5.1.4  Copyright (C) 1994-2008 Lua.org, PUC-Rio
  3. >
  4. > print("hello lua")
  5. hello lua
  1.     <br />            <br />

二、安装nginx_lua三方模块

  1. wget https://github.com/simpl/ngx_devel_kit/archive/v0.3.0.tar.gz
  2. wget https://github.com/openresty/lua-nginx-module/archive/v0.10.10.tar.gz

1、 解压缩模块

  1. tar xf v0.3.0.tar.gz
  2. tar xf v0.10.10.tar.gz
  3. tar xf nginx-1.14.0.tar.gz

2、为nginx添加三方模块 

  1. cd nginx-1.14.0/
  2. yum -y install pcre-devel
  3. yum -y install openssl openssl-devel
  4. ./configure --prefix=/app/nginx --user=nginx --group=nginx --with-http_ssl_module --with-http_flv_module --with-http_stub_status_module --with-http_gzip_static_module --with-pcre --with-file-aio --with-http_secure_link_module --with-threads --http-client-body-temp-path=/var/tmp/nginx/client --http-proxy-temp-path=/var/tmp/nginx/proxy --http-fastcgi-temp-path=/var/tmp/nginx/fastcgi --http-uwsgi-temp-path=/var/tmp/nginx/uwsgi --http-scgi-temp-path=/var/tmp/nginx/scgi --add-module=../ngx_devel_kit-0.3.0 --add-module=../lua-nginx-module-0.10.10
  5. make && make install

3、验证模块

  1. cd /app/nginx/sbin/
  2.      ./nginx -V

4、创建虚拟主机测试lua模块 

  1. vim /app/nginx/conf/lua_test.conf
  3. server {
  4.         listen 80;
  5.         server_name localhost;
  6.         location /test1 {
  7.                 content_by_lua '
  8.                 ngx.say("hello lua")
  9.                 ngx.log(ngx.ERR, "err err")';
  10.         }
  11.         location /test2 {
  12.                 content_by_lua_file "/tmp/test.lua";
  13.         }
  14. }

实际的配置片段

  1.     log_format  main    '{"request":"$request","request_body":"$request_body","time":"[$time_iso8601]","remote_addr":"$http_x_forwarded_for","remote_user":"$remote_user","response_time":"$upstream_response_time","request_time":"$request_time","browser_type":"$http_user_agent","response_body":"$resp_body"}';
  2.     upstream H5_server {
  3.         server 127.0.0.1:9500 weight=100;
  4.     }
  6.     server {
  7.         listen       8099;
  8.         server_name  localhost;
  9.         root  /usr/share/nginx/html;
  10.     set $resp_body "";
  11.     access_log  /app/nginx/logs/access.log main buffer=1024000k flush=1m;
  12.         location /face/video/liveness_detection {
  13.                 lua_need_request_body on;
  14.                 body_filter_by_lua '
  15.                 local resp_body = string.sub(ngx.arg[1], 1, 300000)
  16.                 ngx.ctx.buffered = (ngx.ctx.buffered or"") .. resp_body
  17.                 if ngx.arg[2] then
  18.                        ngx.var.resp_body = ngx.ctx.buffered
  19.                 end
  20.                 ';

5、启动nginx

  1. ./nginx

6、测试访问

  1. vim /tmp/test.lua     
  2. ngx.say("hello lua_xjs")
  5. curl lua.linux.com/test1
  6. hello lua
  8. curl lua.linux.com/test2
  9. hello lua_xjs