Using a base UBI8 (minimal) container, these Dockerfiles will convert them to use CentOS repositories, allowing unfettered access to the sum of the Enterprise Linux package base.
With a Red Hat Developer account:
docker login registry.redhat.io
docker build .
docker build --file Dockerfile-minimal .
Without a Red Hat Developer account:
docker build --build-arg registry=registry.access.redhat.com .
docker build --build-arg registry=registry.access.redhat.com --file Dockerfile-minimal .
Red Hat is deprecating their unauthenticated registry service and may be discontinued at any time.