nginx反向代理treafik

http {
   *******
   *******

upstream myserver{
       server 172.16.150.20:80;
       server 172.16.150.21:80;
       server 172.16.150.22:80;
     }

server {
       listen       80 ; ##设置我们nginx监听端口为8888
       server_name  dubboadmin.rokin.cn;


       location / {
           proxy_pass http://myserver; ##叮，核心配置在这里
           proxy_set_header host $host;  ***当后端Web服务器上也配置有多个虚拟主机时，需要用该Header来区分反向代理哪个主机名
       }

}

}