升级最新版 kubelet kubeadm kubectl (阿里云镜像)
cat <<EOF > /etc/yum.repos.d/kubernetes.repo [kubernetes] name=Kubernetes baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/ enabled=1 gpgcheck=1 repo_gpgcheck=1 gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg EOF setenforce 0 yum install -y kubelet kubeadm kubectl systemctl enable kubelet && systemctl start kubelet
查看此版本的容器镜像版本
$ kubeadm config images list k8s.gcr.io/kube-apiserver:v1.12.1 k8s.gcr.io/kube-controller-manager:v1.12.1 k8s.gcr.io/kube-scheduler:v1.12.1 k8s.gcr.io/kube-proxy:v1.12.1 k8s.gcr.io/pause:3.1 k8s.gcr.io/etcd:3.2.24 k8s.gcr.io/coredns:1.2.2
查询可用的版本
$ yum list --showduplicates | grep 'kubeadm\|kubectl\|kubelet'
拉取容器镜像(github)
echo "" echo "==========================================================" echo "Pull Kubernetes v1.12.1 Images from aliyuncs.com ......" echo "==========================================================" echo "" MY_REGISTRY=registry.cn-hangzhou.aliyuncs.com/openthings ## 拉取镜像 docker pull ${MY_REGISTRY}/k8s-gcr-io-kube-apiserver:v1.12.1 docker pull ${MY_REGISTRY}/k8s-gcr-io-kube-controller-manager:v1.12.1 docker pull ${MY_REGISTRY}/k8s-gcr-io-kube-scheduler:v1.12.1 docker pull ${MY_REGISTRY}/k8s-gcr-io-kube-proxy:v1.12.1 docker pull ${MY_REGISTRY}/k8s-gcr-io-etcd:3.2.24 docker pull ${MY_REGISTRY}/k8s-gcr-io-pause:3.1 docker pull ${MY_REGISTRY}/k8s-gcr-io-coredns:1.2.2 ## 添加Tag docker tag ${MY_REGISTRY}/k8s-gcr-io-kube-apiserver:v1.12.1 k8s.gcr.io/kube-apiserver:v1.12.1 docker tag ${MY_REGISTRY}/k8s-gcr-io-kube-scheduler:v1.12.1 k8s.gcr.io/kube-scheduler:v1.12.1 docker tag ${MY_REGISTRY}/k8s-gcr-io-kube-controller-manager:v1.12.1 k8s.gcr.io/kube-controller-manager:v1.12.1 docker tag ${MY_REGISTRY}/k8s-gcr-io-kube-proxy:v1.12.1 k8s.gcr.io/kube-proxy:v1.12.1 docker tag ${MY_REGISTRY}/k8s-gcr-io-etcd:3.2.24 k8s.gcr.io/etcd:3.2.24 docker tag ${MY_REGISTRY}/k8s-gcr-io-pause:3.1 k8s.gcr.io/pause:3.1 docker tag ${MY_REGISTRY}/k8s-gcr-io-coredns:1.2.2 k8s.gcr.io/coredns:1.2.2 echo "" echo "==========================================================" echo "Pull Kubernetes v1.12.1 Images FINISHED." echo "into registry.cn-hangzhou.aliyuncs.com/openthings, " echo " by openthings@https://my.oschina.net/u/2306127." echo "==========================================================" echo ""
备注:或参考上一篇的镜像脚本:https://github.com/anjia0532/gcr.io_mirror
查询需要升级的信息
$ kubeadm upgrade plan
升级Kubernetes集群
$ kubeadm upgrade apply v1.12.1
Node 节点升级
升级对应的 kubelet kubeadm kubectl 的版本,拉取对应版本的镜像文件即可。
查询各节点信息与 pod 信息
$ kubectl get nodes
$ kubectl get pod --all-namespaces -o wide
REFER:
https://my.oschina.net/u/2306127/blog/2231184
https://github.com/kubernetes/kubeadm/issues/1054