Is there any method in the API to add custom proxy_listener port? Now default proxy_listener port is 8000 and 8443. I can change the etc/kong.config file and change it 80 and 443 manually but can we do that via API?
Does kong support TCP based load balancing instead of http/https such as listen 888 TCP port and redirect to target TCP backend game servers such as 999?
UDP is not supported ATM. The Nginx stream module does support it: http://nginx.org/en/docs/stream/ngx_stream_core_module.html#listen (so at least you can create custom Nginx template and a new server block to do it, but not in dynamic fashion with Kong at the moment).