Valentin Rothberg

A Bavarian living in France working on all-things containers.

Valentin is a principal software engineer in Red Hat's container engines team, focusing on and maintaining various open-source projects such as Buildah, Podman, Skopeo and CRI-O. He contributed to many other projects in the containers landscape such as Kubernetes, the Linux kernel, Moby, Google Cloud, container-diff and more. Prior to industry, Valentin has been working in academia researching and teaching operating systems.

Past Activities

Valentin Rothberg
Code Mesh LDN
08 Nov 2019
13.40 - 14.25

Decomposing container tools - about Swiss Army Knives and containers

One-size-fits-all solutions come at a price. In this talk, I present four open-source container tools dedicated to specific use-cases:

  • CRI-O, a Kubernetes runtime
  • Podman, for managing pods and containers
  • Buildah, for building containers
  • Skopeo, for distributing container images

All tools are collaboratively developed across the industry and distributions, and are built on top of the same libraries, allowing for a seamless integration, compatibility and interoperability. Live demos demonstrate how they can cover an entire life-cycle: from local development to migrating to production.


No one-size-fits-all solutions


The main objective of the talk is to share the philosophy of the four tools. Having a more narrow focus allows for innovation in the target use-cases, and offers a less-opinionated experience for end-users and customers, offering choice and flexibility.


Everybody interested in running and building containers, locally, on a server, and in distributed environments such as Kubernetes.