Cluster update known issues

This section lists the cluster update known issues with workarounds for the Mirantis OpenStack for Kubernetes release 23.1.

[27797] Cluster ‘kubeconfig’ stops working during MKE minor version update

During update of a Container Cloud management cluster, if the MKE minor version is updated from 3.4.x to 3.5.x, access to the cluster using the existing kubeconfig fails with the You must be logged in to the server (Unauthorized) error due to OIDC settings being reconfigured.

As a workaround, during the Container Cloud cluster update, use the admin kubeconfig instead of the existing one. Once the update completes, you can use the existing cluster kubeconfig again.

To obtain the admin kubeconfig:

kubectl --kubeconfig <pathToMgmtKubeconfig> get secret -n <affectedClusterNamespace> \
-o yaml <affectedClusterName>-kubeconfig | awk '/admin.conf/ {print $2}' | \
head -1 | base64 -d > clusterKubeconfig.yaml