CoreOS is Dead, Long Live CoreOS
summary
CoreOS evolves from Container Linux into image-based Fedora CoreOS, CentOS Stream CoreOS and RHEL CoreOS, with explicit mechanics: images rebased by digest, Ignition performing first-boot declarative provisioning, and rpm-ostree used to compose and rebase systems. Layering treats the OS as a container image (FROM + rpm-ostree install) enabling derived images like Universal Blue that add NVIDIA drivers. Three official streams exist (upstream Fedora, midstream CentOS Stream, downstream RHEL), and work is underway on unified kernel images and bootloader/bootctl replacements that could remove on-disk package managers.
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chapters (8)
- 0:00Introduction
- 1:01Evolution of CoreOS
- 2:08CoreOS architecture
- 3:48OS layering
- 5:23Release variants
- 7:14Future developments
- 10:12Call to action
- 11:19Q&A session
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