部署nginx+openresty+lua，作为应用层nginx

安装nginx+openresty

创建安装目录

mkdir -p /usr/servers  
cd /usr/servers/

安装依赖

yum install -y readline-devel pcre-devel openssl-devel gcc
wget http://openresty.org/download/openresty-1.11.2.4.tar.gz
tar -zxvf openresty-1.11.2.4.tar.gz 
cd /usr/servers/openresty-1.11.2.4
cd bundle/LuaJIT-2.1-20170405/
make clean && make && make install  
ln -sf luajit-2.1.0-beta2 /usr/local/bin/luajit

安装bundle

cd /usr/servers/openresty-1.11.2.4/bundle  
wget https://github.com/FRiCKLE/ngx_cache_purge/archive/2.3.tar.gz  
tar -xvf 2.3

wget https://github.com/yaoweibin/nginx_upstream_check_module/archive/v0.3.0.tar.gz  
tar -xvf v0.3.0

安装openresty

cd /usr/servers/openresty-1.11.2.4
./configure --prefix=/usr/servers --with-http_realip_module  --with-pcre  --with-luajit --add-module=./bundle/ngx_cache_purge-2.3/ --add-module=./bundle/nginx_upstream_check_module-0.3.0/ -j2  
gmake && gmake install 

查看安装文件

cd /usr/servers/  
ll
total 4304
drwxr-xr-x.  2 root root    4096 Aug 17 17:14 bin
drwxr-xr-x.  6 root root    4096 Aug 17 17:14 luajit
drwxr-xr-x.  6 root root    4096 Aug 17 17:14 lualib
drwxr-xr-x. 11 root root    4096 Aug 17 17:16 nginx
drwxrwxr-x.  6 1000 1000    4096 Aug 17 17:12 openresty-1.11.2.4
-rw-r--r--.  1 root root 4158984 Jul 12 01:44 openresty-1.11.2.4.tar.gz
drwxr-xr-x. 43 root root    4096 Aug 17 17:14 pod
-rw-r--r--.  1 root root  214511 Aug 17 17:14 resty.index
drwxr-xr-x.  5 root root    4096 Aug 17 17:14 site

启动nginx

/usr/servers/nginx/sbin/nginx

nginx+lua开发的hello world

配置nginx.conf

vi /usr/servers/nginx/conf/nginx.conf

在http部分添加：

lua_package_path "/usr/servers/lualib/?.lua;;";  
lua_package_cpath "/usr/servers/lualib/?.so;;";  
include lua.conf;

添加lua.conf

在/usr/servers/nginx/conf下，创建一个lua.conf,内容如下:

server {  
    listen       80;  
    server_name  _;  
}  

验证配置文件

/usr/servers/nginx/sbin/nginx -t

nginx: the configuration file /usr/servers/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/servers/nginx/conf/nginx.conf test is successful

在lua.conf的server部分添加lua脚本

location /lua {  
    default_type 'text/html';  
    content_by_lua 'ngx.say("hello world")';  
} 

测试配置是否有问题

/usr/servers/nginx/sbin/nginx -t  

重新nginx加载配置

/usr/servers/nginx/sbin/nginx -s reload  

访问http: http://study0/lua

单独编写lua脚本模块

vi /usr/servers/nginx/conf/lua/test.lua

ngx.say("hello lua"); 

修改lua.conf

location /lua {  
    default_type 'text/html';  
    content_by_lua_file conf/lua/test.lua; 
}

如果发现异常,查看异常日志

tail -f /usr/servers/nginx/logs/error.log

工程化的nginx+lua项目结构

项目工程结构

hello
    hello.conf     
    lua              
      hello.lua
    lualib            
      *.lua
      *.so

创建hello项目

mkdir /usr/hello
cd /usr/hello
cp -r /usr/servers/lualib/ .

修改nginx.conf

vi /usr/servers/nginx/conf/nginx.conf

在http模块添加

lua_package_path "/usr/hello/lualib/?.lua;;";
lua_package_cpath "/usr/hello/lualib/?.so;;";
include /usr/hello/hello.conf;

添加hello.conf

vi /usr/hello/hello.conf

server {
    listen       80;
    server_name  _;

    location /lua {
        default_type 'text/html';
        content_by_lua_file /usr/hello/lua/hello.lua;
    }
}

添加/usr/hello/lua/hello.lua

mkdir /usr/hello/lua/
vi /usr/hello/lua/hello.lua
ngx.say("hello,lua project")

重启nginx

/usr/servers/nginx/sbin/nginx -s reload