Promote arm64-linux to Tier 1

[ameukam]

What would you like to be added:

Ensure arm64-linuxis promoted to Tier 1.

Why is this needed:

[ameukam]

We already publish artifacts for this architecture:

• system packages: https://build.opensuse.org/project/show/isv:kubernetes:core:stable:v1.31
• OCI images: https://kubernetes.io/releases/download/#container-images
• binaries: https://kubernetes.io/releases/download/#container-images

[ameukam]

@kubernetes/release-managers Do we still need specific tests for this ?

[saschagrunert]

@kubernetes/release-managers Do we still need specific tests for this ?

I would say so, yes. The question is where do we draw the baseline? We could define a minimum set of tests which need to run on the platform directly in https://github.com/kubernetes/website/pull/48457

[ameukam]

Equivalent master-blocking prowjobs (mostly conformance and build) running on aarch64 hardware as a starter ?

[saschagrunert]

Equivalent master-blocking prowjobs (mostly conformance and build) running on aarch64 hardware as a starter ?

Yes this sounds like a great start!

[xmudrii]

+1, that sounds like a great start!

[mkumatag]

Right now, the arm64 conformance job is listed only in informing and not in blocking. (Is it mature enough for blocking? If yes, then promote it.)

Additionally, I don’t see any unit test runs for this platform.

The next step could be to identify the gaps and address them.

[saschagrunert]

@mkumatag we have to follow the procedure outlined in https://github.com/kubernetes/sig-release/blob/master/release-blocking-jobs.md#promoting-or-demoting-jobs to promote a job :)