k8s官方安装版本

一、概述

　　官方安装链接：https://kubernetes.io/docs/getting-started-guides/kubeadm/

　　之前使用是yum直接安装组件，现由kubeadm来自动安装配置；

二、安装(centos7为例）

 yum update
 cat <<EOF > /etc/yum.repos.d/kubernetes.repo
 [kubernetes]
 name=Kubernetes
 baseurl=http://yum.kubernetes.io/repos/kubernetes-el7-x86_64
 enabled=
 gpgcheck=
 repo_gpgcheck=
 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg
        https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
 EOF
 setenforce
 yum install -y docker kubelet kubeadm kubectl kubernetes-cni
 systemctl enable docker && systemctl start docker
 systemctl enable kubelet && systemctl start kubelet