root.conf

        location / {
            proxy_pass http://192.168.2.2:8080;
            proxy_redirect                      off;
            proxy_set_header Host               $host;
            proxy_set_header X-Real-IP          $remote_addr;
            proxy_set_header X-Forwarded-Host   $host;
            proxy_set_header X-Forwarded-Server $host;
            proxy_set_header X-Forwarded-For    $proxy_add_x_forwarded_for;
        }