Demo of doing an equivalent build process without special plugins

[jglick]

For discussion, not merge. CC @HRMPW

[kuops]

*************** Installing a local Docker Registry Service for the demo ***************
***************            Please sit tight for a minute                ***************
Unable to find image 'registry:docker-workflow-demo' locally
docker: Error response from daemon: manifest for registry:docker-workflow-demo not found.
See 'docker run --help'.
***************         Docker Registry Service running now             ***************
"docker rmi" requires at least 1 argument(s).
See 'docker rmi --help'.

Usage:  docker rmi [OPTIONS] IMAGE [IMAGE...]

Remove one or more images

[jglick]

Just a warning which can be ignored.