Devconf.cz 2023

This talk will cover how OpenShift 4 does operating system updates and config management since the start, and a fundamental change we made in 4.12 to re-center things around directly bootable container images!

We’ll cover some of the early iterations of this idea, what worked and what didn’t. We’ll do a demo of a hotfix to the kernel and iptables packages. Then a lot of discussion about the future!
There’s a lot of incoming work to better handle 3rd party content, we’re also looking at how Ansible can be used as part of container builds for example.

See https://docs.openshift.com/container-platform/4.12/post_installation_configuration/coreos-layering.html#coreos-layering for more!