kubernetes nginx-ingress-controller tls termination for tcp connections

Hi,
I've a TCP server running in a POD and I want to terminate TLS on the nginx-ingress-controller and have not-encrypted messages from the nginx-ingress-controller to my service and then to my POD. I've the stream module enabled but it's unclear how to configure nginx-ingress-controller to terminate the traffic. Is there any example I can use for the scope? I mean how the Ingress should be defined.
Thanks in advance
regards
alfonso