Add support for alpine 3.22 and drop 3.18

[onedr0p]

• Alpine 3.22 was released yesterday. https://alpinelinux.org/posts/Alpine-3.22.0-released.html
• Alpine 3.18 reached its EOL last month and is therefore dropped.

[home-assistant]

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[cdce8p]

Thanks @onedr0p! Looking back at the PR history, it seems we might need to split this up into two separate PRs with a release in between. E.g.

• Add Alpine Linux 3.20, drop 3.16 #268
• Upgrade Python base images to Alpine 3.20, drop 3.17 #269

[onedr0p]

No worries, that was my initial thought too. I'll make the changes in the morning.

[onedr0p]

@cdce8p I've updated the PR to only include the Alpine base image changes.

[cdce8p]

LGTM!

[cdce8p]

@onedr0p Any reason you merged the upstream branch here? The CI run was already green. A new build will take 4+ hours and a lot of runners. If you're able to, could you force-push remove the merge commit? Hopefully this would restore the CI status and this PR would be good to go.

[agners]

@onedr0p Any reason you merged the upstream branch here? The CI run was already green. A new build will take 4+ hours and a lot of runners. If you're able to, could you force-push remove the merge commit? Hopefully this would restore the CI status and this PR would be good to go.

I did just that, but it seems it doesn't restore the CI status 🙈

Anyhow, this looked good before, so I'll go ahead and merge as is.

[agners]

LGTM, thanks!

[onedr0p]

Apologies, I wasn't aware of the build times 😕 I'll go ahead and open PR to bump the Python base images soon.

[cdce8p]

I'll go ahead and open PR to bump the Python base images soon.

We'll need a new release first. Otherwise the Python build for alpine3.22 would just fail. Maybe after #303 is merged @agners?

[onedr0p]

I could stage the PR at least as a WIP while we wait then you can merge it when ready.

[agners]

We'll need a new release first. Otherwise the Python build for alpine3.22 would just fail. Maybe after #303 is merged @agners?

Yeah make sense. Here we go: https://github.com/home-assistant/docker-base/releases/tag/2025.06.0.

[cdce8p]

Yeah make sense. Here we go: https://github.com/home-assistant/docker-base/releases/tag/2025.06.0.

Thanks! Looks like it needs some attention though. Restarting the failed jobs should do the trick. I don't have the permission for it unfortunately. https://github.com/home-assistant/docker-base/actions/runs/15563220512

[frenck]

Restarted

[onedr0p]

@frenck while you are here, according to the blog post should we be deprecating support for i386, armhf and armv7 here anytime soon? We could make use of the native GH arm64 runners if true.