Test for real-ip header

docker/rootfs/etc/nginx/conf.d/include/proxy.conf

@@ -3,4 +3,6 @@ proxy_set_header Host $host;
 proxy_set_header X-Forwarded-Scheme $scheme;
 proxy_set_header X-Forwarded-Proto  $scheme;
 proxy_set_header X-Forwarded-For    $remote_addr;
+proxy_set_header X-Real-IP          $http_x_real_ip;
 proxy_pass       $forward_scheme://$server:$port;
+