I've recently discovered Azure Relay and it seems very powerful. I have a basic project using it now to expose a WCF Windows Service. I've read in the documentation about how it can be used to expose RESTful services, but I'm having trouble understanding if it can be used to expose a SOAP web service. I can't seem to find any examples of that and the closest I can is this post about exposing the WSDL. I have an extremely simple SOAP web service with a single method that takes in 5 strings as arguments. I know WCF Services can be hosted in IIS but my client's requirement is that no firewall ports are opened so here's my actual question:
Is there a way to use a Relay to expose an internal IIS WebService publicly? Is there another method I might have overlooked to get around opening a port in the firewall?
I would be very open to exposing the service I have or rewriting it completely since it's so simple, I'm just not sure what my options are.