-- 从请求中获取请求头为 Sec-WebSocket-Protocol 的值
secWebSocketProtocol=ngx.req.get_headers()["Sec-WebSocket-Protocol"]

-- 从 cookie 中获取uid对应的值
uid=ngx.var.cookie_uid

-- 获取我们在 nginx 中定义的变量
-- set $lct "initialD";
location=ngx.var.lct

-- 从请求头中获取来源 ip
ip=headers["X-REAL-IP"] or headers["X_FORWARDED_FOR"] or ngx.var.remote_addr

[
  {
    "rules": {
      "rule_name": {
        "rule": [
          {
            "type": "cookie",
            "key": "test",
            "value": "",
            "multi_val": [
              "1"
            ],
            "match_type_v": "whitelist",
            "relative": "must"
          }
        ],
        "should_match_num": 0,
        "relative": "must"
      },
      "should_match_num": 0
    },
    "task_info": {
      "host": "storage.test.com",
      "group_code": "1572094195",
      "location": "test",
      "project_type": "1"
    }
  }
]

upstream test_default {
    server 172.16.1.1:20440;
	server 172.16.1.2:20440;
}
server{
    listen 80;
    server_name storage.test.com;

    charset   utf-8;
    location / {
        index  index.html index.htm;
        proxy_redirect off ;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header REMOTE-HOST $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        client_max_body_size 500m;
        client_body_buffer_size 256k;
        proxy_connect_timeout 300;
        proxy_send_timeout 300;
        proxy_read_timeout 600;
        proxy_buffer_size 256k;
        proxy_buffers 4 256k;
        proxy_busy_buffers_size 256k;
        proxy_temp_file_write_size 256k;
        proxy_next_upstream error timeout invalid_header http_500 http_503 http_404;
        proxy_max_temp_file_size 128m;
        set $lct "test";
        set_by_lua_file $cur_ups conf/vhost/lua/grayscaleControl.lua;
        proxy_pass $scheme://$cur_ups;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "Upgrade";
    }




    access_log logs/test_access.log  json;
    error_log logs/test_error.log info;
}