[RFE] upgrade coreos-base/afterburn

[tormath1]

Current situation

Flatcar is currently running the version 5.2.0 while the 5.4.2 is out and soon a new release should bring the following patch: coreos/afterburn#931 which is required for CAPO (Cluster API OpenStack) project (kubernetes-sigs/cluster-api-provider-openstack#1564)

Implementation options

• There is a few patches to port (https://github.com/flatcar/scripts/blob/b5dbef8d2bff97953ac9f27a431696280a2244bb/sdk_container/src/third_party/coreos-overlay/coreos-base/afterburn/afterburn-9999.ebuild#L223-L227)
• Generate with cargo-ebuild the new dependencies list

Additional information

Have a look to the afterburn changelog (coreos/afterburn@v5.2.0...v5.4.2)

EDIT: Discussed with @mdbooth during CAPO office hours: "what would be the best way to have the upgrade into Flatcar" - I see two options:

• backport the upgrade to all channels (including Stable) (not a big fan of bypassing the usual channel validation)
• as the upgrade does not seem to be a big upgrade, we could backport it to Alpha / Beta only and change the Flatcar image to Beta for the CAPO CI

Here's the CAPO PR: kubernetes-sigs/cluster-api-provider-openstack#1564

[dongsupark]

+1 for the 2nd option, "backport it to Alpha / Beta only and change the Flatcar image to Beta for the CAPO CI".

[tormath1]

Aftberburn 5.5.0 is out: https://github.com/coreos/afterburn/releases/tag/v5.5.0