How to expose one service on a port

[PatelVishalJ]

I have an application deployed on Kubernetes: https://myapplication.com. I am using Kong ingress controller. Let's say I have one admin section, I want to expose it on a port like https://myapplication.com:8443/admin. Both the application and admin portal needs to be on https.

How can I do it?

I am looking at https://docs.konghq.com/kubernetes-ingress-controller/latest/guides/using-tcpingress/
Is that the right approach for this purpose?

TCPIngress gives two options, but I doubt any of those will help me.
Port based routing - I guess this is not an option because it does not handle TLS handshake.
SNI based routing - I am not an expert for SNI, but my basic understanding is, it can be used for two different domains on a server, not for the same domain but an additional port. So this may not be an option either.