The README for the appengine/websockets example says:

To use Secure WebSockets now, you can launch a VM on Google Compute Engine using a custom image where you have added SSL support for WebSockets.

It would be great if the README could elaborate on this, as most sites are served over HTTPS nowadays and thus also require the websockets connection to be secure. This is also my usecase!

In, fact any suggestion on how supporting SSL inside that docker image could be achieved, would be greatly appreciated!