Red Hat Universal Base Image Implementation
The Red Hat Universal Base Image is implemented as the base layer for all of the containerized applications. The ubi-minimal offers a minimized pre-installed content set. Red Hat provides a set of command-line tools that can operate without a container engine like podman, buildah, skopeo, etc. You can use the Docker container engine for containerization. Also, all application images are built with the root user. By using ubi as a base image, the image or container size of an application is reduced effectively.
Note: To get an ubi-minimal image from a Red Hat container registry using registry service account token or using Red Hat login, modify the base:1.0 Dockerfile accordingly. For more information about the Red Hat ubi, see the documentation on the Red Hat website.