> You can still feed the Dockerfile to docker build via STDIN. but you'd then have to work out how to "filter out" the bash commands inside this bash script t

> You can still feed the Dockerfile to docker build via STDIN. but you'd then have to work out how to "filter out" the bash commands inside this bash script to make it a valid docker file. Unless of course, you entirely store the docker file contents inside heredocs. That works fine, but it's not as "cool" as "executing" dockerfiles as a script.