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Island 5 · Cluster Maintenance · Port 5.4

Upgrading a cluster: kubeadm hands-on

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1.36 → 1.37, command by command.
You'll learn to

run the kubeadm/kubelet upgrade sequence

Recap

  1. 1Change the pkgs.k8s.io repo, upgrade kubeadm
  2. 2upgrade apply on the first control plane, upgrade node on the others
  3. 3Drain, upgrade kubelet + kubectl, restart kubelet, uncordon
Check yourself

On a worker node, which command upgrades its configuration?

5.4

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