I'm trying to upgrade our Kubernetes kubeadm cluster from v-1.19.4 to v-1.19.13 on Ubuntu system with the below steps, i could able to upgrade my master host, however still worker hosts remain with same older version.
On Master:-
apt-mark unhold kubeadm && \
apt-get update && apt-get install -y kubeadm=1.19.13-00 && \
apt-mark hold kubeadm
apt-get update && \
apt-get install -y --allow-change-held-packages kubeadm=1.19.13-00
kubeadm upgrade plan
kubeadm upgrade apply v1.19.13
kubeadm upgrade node
kubectl drain worker-1 --ignore-daemonsets
kubectl drain worker-2 --ignore-daemonsets
apt-mark unhold kubelet kubectl && \
apt-get update && apt-get install -y kubelet=1.19.13-00 kubectl=1.19.13-00 && \
apt-mark hold kubelet kubectl
apt-get update && \
apt-get install -y --allow-change-held-packages kubelet=1.19.13-00 kubectl=1.19.13-00
systemctl daemon-reload
systemctl restart kubelet
kubectl uncordon worker-1
kubectl uncordon worker-2
On Worker Host:-
apt-mark unhold kubeadm && \
apt-get update && apt-get install -y kubeadm=1.19.13-00 && \
apt-mark hold kubeadm
apt-get update && \
apt-get install -y --allow-change-held-packages kubeadm=1.19.13-00
kubeadm upgrade node
On Master Host:-
kubectl drain worker-1 --ignore-daemonsets
kubectl drain worker-2 --ignore-daemonsets
On Worker Node:-
apt-mark unhold kubelet kubectl && \
apt-get update && apt-get install -y kubelet=1.19.13-00 kubectl=1.19.13-00 && \
apt-mark hold kubelet kubectl
apt-get update && \
apt-get install -y --allow-change-held-packages kubelet=1.19.13-00 kubectl=1.19.13-00
systemctl daemon-reload
systemctl restart kubelet
On Master Host:-
kubectl uncordon worker-1
kubectl uncordon worker-2
~# kubectl get nodes
NAME STATUS ROLES AGE VERSION
master Ready master 45h v1.19.13
worker1 Ready worker-1 27h v1.19.4
worker2 Ready worker-2 27h v1.19.4
Here still my worker nodes have old v1.19.4. Is there any additional steps that i need to perform on worker hosts? Please suggest. Thanks.
