kubernetes - Can anyone tell me how to avoid upgrading CoreDns while performing kubeadm upgrade apply?

Question

As in the kubeadm doc, we can set --etcd-upgrade=false to refrain upgrading etcd. I just like to know how to avoid upgrading CoreDNS while performing kubeadm upgrade apply?

Answer 1

There is no any word in kubeadm upgrade reference page that you can disable CoreDNS upgrading.

Kubernetes Feature Gates and Feature gates for Alpha or Beta features also doesnt contain such features.

My conclusion - you are not able to

avoid upgrading CoreDNS while performing kubeadm upgrade apply