Docker 安装

  1. docker pull openresty/openresty

运行

  • -v 挂载宿主机目录，便于本地修改配置文件；
    1. docker run -p 8888:80 -v $PWD/conf.d:/etc/nginx/conf.d openresty/openresty:latest

    OpenResty最佳实践

OpenResty-Best-Practices.pdf

几个小例子

  • internal; 只允许内部调用；
  • default_type text/html; , response 的类型，如果不规定这个，wangye请求 lua 编辑的接口时会出现下载一个空白页；
  • content_by_lua_block{} , 嵌入 lua 代码块；
  • content_by_lua , 使用 lua 解释器执行后面的字符串；

  • ngx.say(res.body) , 应该是（猜的）OpenResty 的一个 api ，返回响应的内容。

    1. server {
    2.   listen       80;
    3.   server_name  localhost;
    5.   #charset koi8-r;
    6.   #access_log  /var/log/nginx/host.access.log  main;
    8.   location / {
    9.       root   /etc/dist;
    10.       index  index.html index.htm;
    11.   }
    13.   location = /sum {
    14.   # 只允许内部调用
    15.   internal;
    17.   # 这里做了一个求和运算只是一个例子，可以在这里完成一些数据库、
    18.   # 缓存服务器的操作，达到基础模块和业务逻辑分离目的
    19.   content_by_lua_block {
    20.       local args = ngx.req.get_uri_args()
    21.       ngx.say(tonumber(args.a) + tonumber(args.b))
    22.   }
    23. }
    25.   location /block {
    26.           default_type text/html;
    28.           content_by_lua_block {
    29.               local res = ngx.location.capture(
    30.                       "/sum", {args={a=3, b=8}}
    31.                       )
    32.               ngx.say("status:", res.status, " response:", res.body)
    33.           }
    34.   }
    36.   location /a {
    37.       default_type 'text/plain';
    38.       content_by_lua 'ngx.say("hello,lua")';    
    39.   }
    41.   location /test {
    42.      content_by_lua_block {
    43.          local res = ngx.location.capture(
    44.                   '/print_param',
    45.                   {
    46.                      method = ngx.HTTP_POST,
    47.                      args = ngx.encode_args({a = 1, b = '2&'}),
    48.                      body = ngx.encode_args({c = 3, d = '4&'})
    49.                  }
    50.               )
    51.          ngx.say(res.body)
    52.      }
    53.  }
    55.   location /hello {
    56.       content_by_lua_block {
    57.           local arg = ngx.req.get_uri_args()
    58.          for k,v in pairs(arg) do
    59.              ngx.say("[GET ] key:", k, " v:", v)
    60.          end
    62.          ngx.req.read_body() -- 解析 body 参数之前一定要先读取 body
    63.          local arg = ngx.req.get_post_args()
    64.          for k,v in pairs(arg) do
    65.              ngx.say("[POST] key:", k, " v:", v)
    66.          end    
    67.       }
    68.   }
    70.   #error_page  404              /404.html;
    72.   # redirect server error pages to the static page /50x.html
    73.   #
    74.   error_page   500 502 503 504  /50x.html;
    75.   location = /50x.html {
    76.       root   /usr/share/nginx/html;
    77.   }
    79.   # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    80.   #
    81.   #location ~ \.php$ {
    82.   #    proxy_pass   http://127.0.0.1;
    83.   #}
    85.   # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    86.   #
    87.   #location ~ \.php$ {
    88.   #    root           html;
    89.   #    fastcgi_pass   127.0.0.1:9000;
    90.   #    fastcgi_index  index.php;
    91.   #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
    92.   #    include        fastcgi_params;
    93.   #}
    95.   # deny access to .htaccess files, if Apache's document root
    96.   # concurs with nginx's one
    97.   #
    98.   #location ~ /\.ht {
    99.   #    deny  all;
    100.   #}
    101. }