Kubernetes issue with Flatcar (and other distros) on Brightbox

[tormath1]

Description

It has been raised by the CI that Kubernetes is not working on Brightbox because Google Container Registry is somehow blocking requests:

cluster.go:125: time="2025-05-14T02:20:45Z" level=fatal msg="pulling image: failed to pull and unpack image "[registry.k8s.io/kube-apiserver:v1.30.1](http://registry.k8s.io/kube-apiserver:v1.30.1)": failed to resolve reference "[registry.k8s.io/kube-apiserver:v1.30.1](http://registry.k8s.io/kube-apiserver:v1.30.1)": unexpected status from HEAD request to https://registry.k8s.io/v2/kube-apiserver/manifests/v1.30.1: 403 Forbidden"

The Brightbox team has been made aware of this and they set some mitigation steps to avoid perturbing workloads and they are working with GCP to get this solved.

This issue is just for referencing purposes, there is no action to take on the Flatcar side.