k8s node upgrade

1. Master Node 작업 순서

apt update

sudo apt update

apt-mark unhold

• kubeadm, kubectl, kubelet -> unhold

sudo apt-mark unhold kubeadm kubectl kubelet

node 유지 관리

• 노드 단위로 관리한다.
• drain(삭제)

k drain <master-node-name> --delete-emptydir-data --ignore-aemonsets --force

kubeadm update -h

sudo kubeadm update -h
sudo kubeadm upgrade plan 

sudo apt -y install kubeadm=<version> kubectl=<version> kubelet=<version>
# or latest
sudo apt -y install kubeaddm kubectl kubelet

upgrade

sudo apt upgrade  or install apply <versoin> --etcd-upgrade=false
# sudo apt upgrade apply 1.29.3 --etcd-upgrade=false
# sudo apt install apply 1.29.3 --etcd-upgrade=false

sudo systemctl daemon-reolad
sudo systemctl enable kubelet
sudo systemctl restart kubelet
sudo systemctl status kubelet

uncordon으로 노드 오픈

k uncordon <master-node-name>
# k uncordon k8s-master

version 확인

k get no
kubectl version
kubelet --version
kueadm version

hold

sudo apt-mark hold kubeadm kubectl kubelet

2. Worker Node 작업 순서

apt update

sudo apt update

apt-mark unhold

• kubeadm, kubectl, kubelet -> unhold

sudo apt-mark unhold kubeadm kubectl kubelet

node 유지 관리

• 노드 단위로 관리한다.
• drain(삭제)

k drain <master-node-name> --delete-emptydir-data --ignore-aemonsets --force

kubeadm update -h

sudo kubeadm update -h
sudo kubeadm upgrade plan 

sudo apt -y install kubeadm=<version> kubectl=<version> kubelet=<version>
# or latest
sudo apt -y install kubeaddm kubectl kubelet

upgrade

sudo apt upgrade  or install apply <versoin>
# sudo apt upgrade apply 1.29.3
# sudo apt install apply 1.29.3

sudo systemctl daemon-reolad
sudo systemctl enable kubelet
sudo systemctl restart kubelet
sudo systemctl status kubelet

version 확인

k get no
kubectl version
kubelet --version
kueadm version

3. 최종 확인

k get no