kubeadm upgrade plan
yum install -y kubeadm-1.20.10-0.x86_64 kubelet-1.20.10-0.x86_64 kubectl-1.20.10-0.x86_64
docker pull registry.aliyuncs.com/google_containers/kube-apiserver:v1.20.10
docker pull registry.aliyuncs.com/google_containers/kube-controller-manager:v1.20.10
docker pull registry.aliyuncs.com/google_containers/kube-scheduler:v1.20.10
docker pull registry.aliyuncs.com/google_containers/kube-proxy:v1.20.10
kubeadm upgrade apply v1.20.10
systemctl daemon-reload
service kubelet restart
kubectl get nodes
kubectl version
