Thanks to the OCI, you can develop a container using one tool and then run the same container using another tool. Container runtimes, container images, registry servers, and other technologies related to the Linux container ecosystem are now standardized by the Open Container Initiative (OCI). This situation was far from the truth because containers are not just about Docker anymore. Some developers thought that they could not work with Docker anymore, and had to either migrate to a Red Hat-ecosystem Linux system such as CentOS or stay away from Red Hat customers. There was also confusion because RHEL 8 dropped support for the Docker toolset. The biggest ones were the new container tools (Podman, Buildah, and skopeo) and the new Red Hat Universal Base Images. When Red Hat Enterprise Linux (RHEL) 8 was released almost a year ago, and it came with lots of new features related to containers. This article demonstrates how to use Red Hat Universal Base Images with Docker from a non-Red Hat system, such as a Windows or Mac workstation. Red Hat Universal Base Images (UBIs) allow developers using Docker on Windows and Mac platforms to tap into the benefits of the large Red Hat ecosystem.
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