Unable to connect to GKE cluster from Desktop App

[tblaisot]

Hello

I am unable to use headlamp to view my GKE cluster.
The probable cause is the auth method.
Since some years GCP have switched to auth using a gcloud plugin.
In my setup, the plugin is installed using gcloud: gcloud components install gke-gcloud-auth-plugin and i am able to connect to cluster without a problem using kubectl

this is the auth part of the kubeconfig for this cluster (generated using gcloud gcloud container clusters get-credentials cluster)

users:
- name: redacted_cluster_name
  user:
    exec:
      apiVersion: client.authentication.k8s.io/v1beta1
      command: gke-gcloud-auth-plugin
      installHint: Install gke-gcloud-auth-plugin for use with kubectl by following
        https://cloud.google.com/kubernetes-engine/docs/how-to/cluster-access-for-kubectl#install_plugin
      provideClusterInfo: true

[joaquimrocha]

Hi @tblaisot . Can you tell us what Headlamp version you are using and on what platform?

[tblaisot]

Hi,

I forgot to add it sorry.

Version: 0.25.1
Commit: 89e2c59
Package: Flatpak from Flathub
OS: Linux Ubuntu 24.04.1

[joaquimrocha]

@tblaisot I think this may be the same case as described here:
#1885 (comment)

I will try to get this fixed on our side ASAP.

[tblaisot]

There is a lot of similarity for sure.

[mevrin-ueat]

@joaquimrocha got same error on PopOS, I found underlying issue

It looks like you are trying to use a client-go credential plugin that is not installed.

To learn more about this feature, consult the documentation available at:
      https://kubernetes.io/docs/reference/access-authn-authz/authentication/#client-go-credential-plugins

Install gke-gcloud-auth-plugin for use with kubectl by following https://cloud.google.com/blog/products/containers-kubernetes/kubectl-auth-changes-in-gke

server process stderr: 2024/10/01 11:10:41 http: proxy error: dial tcp 127.0.0.1:44703: connect: connection refused

plugin is installed but not using same name

~$ apt list --installed | grep gke-gcloud-auth-plugin
google-cloud-cli-gke-gcloud-auth-plugin/cloud-sdk,now 494.0.0-0 amd64 [installed]
google-cloud-sdk-gke-gcloud-auth-plugin/cloud-sdk,now 467.0.0-0 all [installed]

~$ which gke-gcloud-auth-plugin
/usr/bin/gke-gcloud-auth-plugin

hope it will help