Belajar Sendiri

Commands

sudo kubeadm upgrade plan

sudo kubeadm upgrade plan | sudo kubeadm upgrade apply v1.37.x | sudo kubeadm upgrade node

Careful

What it does

Upgrades a kubeadm cluster's control plane. plan only looks; apply changes the first control-plane node; node does the others.

When to use it

One minor version at a time, after an etcd snapshot. Then drain each node and upgrade its kubelet.

Example

$ sudo kubeadm upgrade plan

Look only: can we upgrade, and to which versions?

$ sudo kubeadm upgrade apply v1.37.2

Upgrade the first control-plane node. Back up etcd first.

$ sudo kubeadm upgrade node

On every other node, after the first one is done.

Learn it in: Upgrade with kubeadm, one minor at a time · Official docs