Buildah, Podman and CRIO-O

Linux containers

Buildah, Podman and CRIO-O. What are they and how to they relate to each other?

From the blog post Buildah and Podman Relationship:

CRI-O was created to provide a lightweight runtime for Kubernetes which adds an abstraction layer between the cluster and the runtime that allows for various OCI runtime technologies

Buildah allows you to have a Kubernetes cluster without any Docker daemon for both runtime and builds

Podman allows you to do all of the Docker commands without the daemon dependency

Buildah specializes in building OCI images

Podman specializes in all of the commands and functions that help you to maintain and modify those OCI container images, such as pulling and tagging

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