TLS tunnel does not provide any port. It present with a unique domain and SSL/TLS connection to be made to that domain at TCP port 443.
In case of TLS tunnel, Pinggy does not terminate the SSL/TLS, instead it forward as it is to the client. The client needs to terminate SSL/TLS.
Pinggy reads only the hostname (SNI) to route the connection and never decrypts it. Your server holds the certificate, so traffic stays encrypted from the client all the way to localhost:8000.