Kubernetes 101: Excercise 7 for CKA (upgrade cluster version, kubectl, kubeadm,kubelet)
Following our journey on the preparation towards the exam CKA (Certified Kubernetes Administrator), we continue this time with the exercise number 7.
Exercise 7:
Note: Keep in mind that this is a practice exercise for the CKA, in a production environment for High Availability I do not recommend to assign a static pod to a node.
- Upgrade the kubeadm on the Master Node to the version 1.18.5
- Upgrade control plane components using kubeadm and install kubelet and kubectl version 1.18.5 on the Mater node
Solution:
#to check the current version
kubectl get nodes
sudo apt install -y kubeadm=1.18.5-00
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