Bootable Containers: An entire OS as a Containerfile
summary
Builds a full CentOS Stream 9 OS plus kernel from a Containerfile, uses bootable container tooling and Podman to create an OCI image, converts it to a qcow2 image, uploads it with virtctl to a CDI DataVolume and boots a VM on OpenShift. Demonstrates transactional A→B updates via bootc switch, a visible web page change after reboot and a single-command rollback that restores the prior version. Works end-to-end in the demo; conversion, upload, boot, update and rollback all succeed.
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chapters (7)
- 0:00Introduction and motivation
- 7:31What is bootc and why it matters
- 13:57Creating bootable container images
- 19:59Demo pipeline and deployment
- 27:36Live demo of version switch
- 29:23Use cases and conclusion
- 31:53Q&A and resources
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