kubeadm升级kubernetes集群 v1.15.1

升级kubeadm kubelet kubectl

yum update -y kubeadm kubelet kubectl

查看改版的容器镜像版本

kubeadm config images list 输出

k8s.gcr.io/kube-apiserver:v1.15.1

k8s.gcr.io/kube-controller-manager:v1.15.1

k8s.gcr.io/kube-scheduler:v1.15.1

k8s.gcr.io/kube-proxy:v1.15.1

k8s.gcr.io/pause:3.1

k8s.gcr.io/etcd:3.3.10

k8s.gcr.io/coredns:1.3.1

升级控制节点

kubeadm upgrade plan

kubeadm upgrade apply v1.15.1

systemctl daemon-reload

systemctl restart kubelet

升级工作节点

kubeadm upgrade node #这里和升级1.14不一样，kubeadm upgrade node config --kubelet-version v1.14.3

systemctl daemon-reload

systemctl restart kubelet

查看升级结果：