kubernetes v1.20.10升级到v1.21.4
yum install -y kubeadm-1.21.4-0.x86_64 kubelet-1.21.4-0.x86_64 kubectl-1.21.4-0.x86_64
kubeadm upgrade plan
拉取镜像,注意coredns的镜像需要tag一下
docker pull registry.aliyuncs.com/google_containers/kube-apiserver:v1.21.4
docker pull registry.aliyuncs.com/google_containers/kube-controller-manager:v1.21.4
docker pull registry.aliyuncs.com/google_containers/kube-scheduler:v1.21.4
docker pull registry.aliyuncs.com/google_containers/kube-proxy:v1.21.4
docker pull registry.aliyuncs.com/google_containers/coredns:1.8.0
docker tag registry.aliyuncs.com/google_containers/coredns:1.8.0 registry.aliyuncs.com/google_containers/coredns:v1.8.0
kubeadm upgrade apply v1.21.4
等待几分钟:
systemctl daemon-reload
service kubelet restart
kubectl get nodes
kubectl version