[BUG] - Kubernetes v1.22+ deprecates v1beta1.Ingress API

[iameskild]

See k8s v1.22 release notes.

Traefik versions older than 2.5.0 rely on this now deprecated API version. See Traefik 2.5.0 release notes.

This issue was a little tricky to track identify as it was causing trouble for the network. Most recently and most clearly, I witnessed a deployment fail on the very next stage, the Keycloak deployment. Viewing the traefik pod logs, you see the following:

pkg/mod/k8s.io/client-go@v0.20.2/tools/cache/reflector.go:167: Failed to watch *v1beta1.Ingress: failed to list *v1beta1.Ingress: the server could not find the requested resource (get ingresses.extensions)

Possibly related to:
#1329
#1334
#1415

[viniciusdc]

It might also be affecting the recent #1491