nginx 配置为play!的前端http服务器

无需动play!应用的配置, 修改nginx.conf 即可
    1> 简单代理模式:
    server {
            listen 80;
            server_name itang.5166.info;
            root /home/itang/test/info.5166.itang;

            location / {
                proxy_pass http://localhost:9000;
            }
    }

    2> 负载均衡模式:
    upstream mysite {
        server 127.0.0.1:9000 weight=6; #play 实例1
        server 127.0.0.1:9001; #play 实例2
    }

    server {
        listen 80;
        server_name itang.5166.info;
        root /home/itang/test/info.5166.itang;

        location / {
                proxy_pass http://mysite;
        }
    }

其他参考文档
    1> play! 文档提供了apache 和 lighttpd的配置示例，见http://www.playframework.org/documentation/1.1/production#server
    2> nginx 官方关于代理和负载平衡的配置文档，见http://wiki.nginx.org/Configuration#Proxying_examples


   ps: play! 作为stateless framework结合前端http服务器作负载均衡是很方便的事情。