参考：

阿里云: https://developer.aliyun.com/mirror/kubernetes 清华： https://mirrors.tuna.tsinghua.edu.cn/help/kubernetes/ 官方主页： https://kubernetes.io/

配置方法

Debian / Ubuntu

sudo apt-get update && sudo apt-get install -y apt-transport-https
curl https://mirrors.aliyun.com/kubernetes/apt/doc/apt-key.gpg | sudo apt-key add -
echo "deb https://mirrors.aliyun.com/kubernetes/apt/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list
sudo apt-get update
sudo apt-get install -y kubelet kubeadm kubectl

CentOS / RHEL / Fedora

cat < /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/
enabled=1
gpgcheck=0
repo_gpgcheck=0 # 这里关闭了gpgkey检查，如需请更改为1
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF
sudo setenforce 0
sudo yum install -y kubelet kubeadm kubectl
sudo systemctl enable kubelet && sudo  systemctl start kubelet

ps: 由于官网未开放同步方式, 可能会有索引gpg检查失败的情况, 这时请用 

sudo yum install -y --nogpgcheck kubelet kubeadm kubectl

安装