How to pass license/serial no to coldfusion container?

Gordon, that's an interesting question. You don't say having looked at it, but the "readme" for the Adobe CF docker containers at https://bintray.com/eaps/coldfusion/cf%3Acoldfusion#read does in fact show how to pass in startup variables to the container. But curiously it makes no mention of passing in the license key. (And I saw no places there to ask questions.)

If you don't get an answer here, there was an Adobe blog post announcing the containers, https://coldfusion.adobe.com/2018/05/docker-images-for-coldfusion/, and Adobe folks have answered questions asked there in the comments. You could ask there also.

Or maybe someone else has already solved this and can chime in here.