Tips

Upgrade kubernetes

Posted on by hoangbui
  • Upgrade version by version, example 1.18->1.19->1.20,…
  • Check next version of kubeadm, select next max version 
    yum list --showduplicates kubeadm --disableexcludes=kubernetes
  • Upgrade kubeadm to next version 
    sudo yum install -y kubeadm-<version> --disableexcludes=kubernetes
  • Verify new kubeadm version 
    kubeadm version
  • Find upgrade plan 
    kubeadm upgrade plan
  • Upgrade to max version in plan 
    kubeadm upgrade apply <version>
  • Upgrade node 
    kubeadm upgrade node
  • Restart service 
    sudo systemctl daemon-reload
sudo systemctl restart kubelet
hoangbui

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