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Upgrading 1.12.3 -> 1.13.0 breaks due to missing volumeMode #71783
Upgrading a cluster from 1.12.3 to 1.13.0 causes pods to break because the "volumeMode" is missing.
all pods with volumes became unavailable:
What you expected to happen:
Kubelet would default to
How to reproduce it (as minimally and precisely as possible):
Anything else we need to know?:
does this mean you are running a 1.13-level kubelet against a 1.12-level kube-apiserver? kubelets may not be newer than the apiserver they speak to.
as you can see the kubelet is upgraded last and this process hasn't changed much since 1.11.
Step 1 of https://kubernetes.io/docs/tasks/administer-cluster/kubeadm/kubeadm-upgrade-1-13/#upgrade-the-control-plane does