openshift / openshift/os

Update `40rhcos-fips` dracut module for RHEL 10 logic

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lifecycle/frozen
Dominant language
Shell
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Forks
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Avg merge
4d 13h
Merged PRs (30d)
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Description

See https://fedoraproject.org/wiki/Changes/RemoveFipsModeSetup. The idea there is that the fips=1 karg becomes the source of truth. This is something that should work in image-mode RHEL/CentOS Stream already and we just inherit from that. On the MCO side, long-term on-cluster layering should do the equivalent of https://gitlab.com/fedora/bootc/examples/-/blob/main/fips/Containerfile?ref_type=heads to enable it at layering time. Short-term, at the very least, we should be able to get rid of this bit since calling fips-mode-setup should no longer be necessary. See also conversation in https://github.com/coreos/ignition/issues/1323.

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with overlay.d/05rhcos/usr/lib/dracut/modules.d/40rhcos-fips/rhcos-fips.sh, especially lines 67-113, and read the referenced Fedora FIPS change. Confirm how the existing image-mode RHEL/CentOS Stream behavior uses the fips=1 kernel argument, then remove the obsolete fips-mode-setup path and verify the dracut module still handles FIPS booting correctly.

Written by the indexing model from the issue text.

Assessment

Tech stack
shell
Domain
operating-systems
Issue type
Refactor
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
55/100

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