The real upshot here is that this is the first dockerfile I've seen that explicitly references environment variables, so by the time I'm done it will convert this dockerfile properly and populate the environment variables for it also (and the odd other container)

I modified his and created my own.

 

 

Today's update to CA (2018.03.30a) will now support environment variables within the dockerfile.  IE: the template it creates for ark will now be correct.

Excellent. I did manage to get this docker working by deleting and recreating the variables. But I would be interested to reinstall it and see how this update affects the process.