fabio can run a transparent TCP proxy which dynamically forwards an incoming
connection on a given port to services which advertise that port. To use TCP
proxy support the service needs to advertise
urlprefix-:1234 proto=tcp in
Consul. In addition, fabio needs to be configured to listen on that port:
fabio -proxy.addr ':1234;proto=tcp'
TCP proxy support can be combined with Certificate Stores to provide TLS termination on fabio.
fabio -proxy.cs 'cs=ssl;type=path;path=/etc/ssl' -proxy.addr ':1234;proto=tcp;cs=ssl'