anchor.diff:      index   index.html index.htm;
   }
   ----
  -+
   
   ./etc/nginx/conf.d/amos1.conf
   
  -+
  +
   ----
   upstream amos1 {
           server <server1>;
  
positive.code:         proxy_pass http://amos1;
      }
  }
  ----
  +
negative.code: 
  ./etc/nginx/nginx.conf
  
  ----
  
  user  nginx;
  