Kubernetes 1.13.1已经正式发布,快速升级(含国内镜像快速下载连接)包括升级kubeadm/kubectl/kubelet版本、拉取镜像、升级Kubernetes集群三个主要步骤。注意Kubernetes 1.12.3版本暂时不支持最新的Docker 18.09,只能用Docker 18.06及如下版本,参考《Ubuntu上软件锁定版本不更新》安装特定DockerCE版本。linux
sudo apt install kubeadm=1.13.1-00 kubectl=1.13.1-00 kubelet=1.13.1-00
查看该版本的容器镜像版本:git
kubeadm config images list
输出以下:github
~# kubeadm config images list k8s.gcr.io/kube-apiserver:v1.13.1 k8s.gcr.io/kube-controller-manager:v1.13.1 k8s.gcr.io/kube-scheduler:v1.13.1 k8s.gcr.io/kube-proxy:v1.13.1 k8s.gcr.io/pause:3.1 k8s.gcr.io/etcd:3.2.24 k8s.gcr.io/coredns:1.2.6
原始的kubernetes镜像文件在gcr上,不能直接下载。我给镜像到了阿里云的杭州机房的容器仓库里,拉取仍是比较快的。docker
echo "" echo "==========================================================" echo "Pull Kubernetes v1.13.1 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:v1.13.1 docker pull ${MY_REGISTRY}/k8s-gcr-io-kube-controller-manager:v1.13.1 docker pull ${MY_REGISTRY}/k8s-gcr-io-kube-scheduler:v1.13.1 docker pull ${MY_REGISTRY}/k8s-gcr-io-kube-proxy:v1.13.1 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:1.2.6 ## 添加Tag docker tag ${MY_REGISTRY}/k8s-gcr-io-kube-apiserver:v1.13.1 k8s.gcr.io/kube-apiserver:v1.13.1 docker tag ${MY_REGISTRY}/k8s-gcr-io-kube-scheduler:v1.13.1 k8s.gcr.io/kube-scheduler:v1.13.1 docker tag ${MY_REGISTRY}/k8s-gcr-io-kube-controller-manager:v1.13.1 k8s.gcr.io/kube-controller-manager:v1.13.1 docker tag ${MY_REGISTRY}/k8s-gcr-io-kube-proxy:v1.13.1 k8s.gcr.io/kube-proxy:v1.13.1 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:1.2.6 k8s.gcr.io/coredns:1.2.6 echo "" echo "==========================================================" echo "Pull Kubernetes v1.13.1 Images FINISHED." echo "into registry.cn-hangzhou.aliyuncs.com/openthings, " echo " by openthings@https://my.oschina.net/u/2306127." echo "==========================================================" echo ""
保存为shell脚本,而后执行。shell
全新安装:api
#指定IP地址,1.13.1版本: # sudo kubeadm init --kubernetes-version=v1.13.1 --apiserver-advertise-address=10.1.1.100 --pod-network-cidr=10.244.0.0/16 --feature-gates CoreDNS=true
先查看一下须要升级的各个组件的版本。网络
使用kubeadm upgrade plan ,输出的版本升级信息以下:app
COMPONENT CURRENT AVAILABLE API Server v1.12.3 v1.13.1 Controller Manager v1.12.3 v1.13.1 Scheduler v1.12.3 v1.13.1 Kube Proxy v1.12.3 v1.13.1 CoreDNS 1.2.6 1.2.6 Etcd 3.2.24 3.2.24
确保上面的容器镜像已经下载(若是没有提早下载,可能被网络阻隔致使挂起),而后执行升级:ui
kubeadm upgrade -y apply v1.13.1
看到下面信息,就OK了。阿里云
[upgrade/successful] SUCCESS! Your cluster was upgraded to "v1.13.1". Enjoy!
而后,配置当前用户环境:
mkdir -p $HOME/.kube sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config sudo chown $(id -u):$(id -g) $HOME/.kube/config
就可使用 kubectl version 来查看状态和 kubectl cluster-info 查看服务地址。
每一个工做节点须要拉取上面对应版本的镜像,以及安装kubelet的对应版本。
检查版本:
~$ kubectl version Client Version: version.Info{Major:"1", Minor:"13", GitVersion:"v1.13.1", GitCommit:"4ed3216f3ec431b140b1d899130a69fc671678f4", GitTreeState:"clean", BuildDate:"2018-10-05T16:46:06Z", GoVersion:"go1.10.4", Compiler:"gc", Platform:"linux/amd64"} Server Version: version.Info{Major:"1", Minor:"13", GitVersion:"v1.13.1", GitCommit:"4ed3216f3ec431b140b1d899130a69fc671678f4", GitTreeState:"clean", BuildDate:"2018-10-05T16:36:14Z", GoVersion:"go1.10.4", Compiler:"gc", Platform:"linux/amd64"}
查看Pod信息:
kubectl get pod --all-namespaces
完成。
更多参考: