lua图片服务器实现过程

1、安装 nginx

下载http://nginx.org/en/download.html
解压tar -xvf nginx-1.10.3.tar.gz

2、安装 luajit（轻量级 lua）

http://luajit.org/download.html
修改 makefile 里面的安装路径export PREFIX= /usr/local/luajit
然后安装make &make install

3、安装nginx_lua_module
下载https://github.com/openresty/lua-nginx-module
解压

4、 安装ngx_devel_kit （NDK提供函数和宏处理一些基本任务，减轻第三方模块开发的代码量）

下载https://github.com/simpl/ngx_devel_kit/

5、wget https://github.com/oupula/ngx_image_thumb/archive/master.zip

 解压：unzip

6、useradd nginx -s /sbin/nologin -M 添加nginx用户组

export LUAJIT_LIB=/usr/local/luajit/lib  

export LUAJIT_INC=/usr/local/luajit/include/luajit-2.0

7、./configure --user=nginx --group=nginx  --prefix=/usr/local/nginx  --with-http_stub_status_module --with-http_ssl_module --add-module=/home/live/software/lua-nginx-module --add-module=/home/live/software/ngx_devel_kit  --add-module=/home/live/software/ngx_image_thumb-master

8、ln -s  /usr/local/nginx/sbin/nginx  /usr/local/bin/nginx

9、启动nginx,如果报错出现/usr/local/nginx/sbin/nginx: error while loading shared libraries: libluajit-5.1.so.2: cannot open shared object file: No such file or directory，find  / -name  libluajit-5.1.so.2 软连接到/lib64/libluajit-5.1.so

10、配置nginx.conf如下：