Katib not ready for K8s 1.22

[DomFleischmann]

/kind bug

With the new Kubernetes 1.22 release, some APIs have been removed: https://kubernetes.io/blog/2021/07/14/upcoming-changes-in-kubernetes-1-22/

The katib project still uses some of these APIs and will therefore not work on k8s 1.22.

For example, the following CRDs are still using apiextensions.k8s.io/v1beta1:

trials.kubeflow.org
suggestions.kubeflow.org
experiments.kubeflow.org

[gaocegege]

dup #1581

Thanks for the issue. It should work in the next release.

[andreyvelich]

Thank you for creating this @DomFleischmann!
Let's keep this issue re-open.
We have to update rest of deprecated resources: https://kubernetes.io/blog/2021/07/14/upcoming-changes-in-kubernetes-1-22/#api-changes.
For example:

• AdmissionReviewVersion.
• CertificateSigningRequest.

I haven't tested Katib with Kubernetes v1.22, but we should try to upgrade above resources in the next version (e.g. Katib 0.13).

[tenzen-y]

/assign