IllegalArgumentException when deploying to a kubernetes 1.36 cluster

[sebphil]

kubernetes-client version 24 has a bug which prevents it from working properly on a kubernetes 1.36 cluster. cf kubernetes-client/java#4809. This bug is fixed in version 27.0.0 of kubernetes-client. Can you please upgrade?

[wind57]

we can't do that, it would mean a "breaking change" for us and such changes only go on in the next major release. Can they backport this fix?

@ryanjbaxter please correct me if I'm wrong

[sebphil]

Could you please elaborate on this breaking change? As a workaround, I have forced a kubernetes-client 27.0.0 dependency in my spring boot app, and everything is working just fine so far.

If it is indeed too much work to upgrade kubernetes-client to 27.0.0, I think it might be possible to ask for a backport of their fix since it was just a problem in their openapi-generator configuration. I'm not sure what to ask them exactly to get the backport you need, so perhaps you should ask them directly?

[ryanjbaxter]

I opened an issue here: kubernetes-client/java#4878

In the past they have been pretty open to doing a release for us, but looking at the PR which closed the issue it touched a ton of files so I am not so confident in this case.

Unless in very rare cases, we do not update dependencies in minor release of Spring unless it is a patch release to avoid introducing breaking changes.

[ryanjbaxter]

Apparently the fix is tied to a specific version of k8s. The only option would be to upgrade to version 27. We might be able to consider this in our 2026.0.x release