Notice that since these are in a public repository you should not expose any details of the CMS infrastructure and have everything configurable via an environment variable. Actual values of the environment variables are maintained somewhere else.
In order to automatically build and deploy images to our Docker Hub,
each docker file should have a corresponding *EXECUTE_BUILD.sh file(s) (example files).
This file contains build parameters for the image such as tag or build arguments.
NOTE: changing Dockerfile will not trigger the build. It is intentional, so that you would at least update CONTAINER_TAG
in *EXECUTE_BUILD.sh.