https://opsx.alibaba.com/mirror  
安装docker  
# step 1: 安装必要的一些系统工具
sudo yum install -y yum-utils device-mapper-persistent-data lvm2
# Step 2: 添加软件源信息
sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
# Step 3: 更新并安装 Docker-CE
sudo yum makecache fast
sudo yum -y install docker-ce
# Step 4: 开启Docker服务
sudo service docker start

# 注意：
# 官方软件源默认启用了最新的软件，您可以通过编辑软件源的方式获取各个版本的软件包。例如官方并没有将测试版本的软件源置为可用，你可以通过以下方式开启。同理可以开启各种测试版本等。
# vim /etc/yum.repos.d/docker-ce.repo
#   将 [docker-ce-test] 下方的 enabled=0 修改为 enabled=1
#
# 安装指定版本的Docker-CE:
# Step 1: 查找Docker-CE的版本:
# yum list docker-ce.x86_64 --showduplicates | sort -r
#   Loading mirror speeds from cached hostfile
#   Loaded plugins: branch, fastestmirror, langpacks
#   docker-ce.x86_64            17.03.1.ce-1.el7.centos            docker-ce-stable
#   docker-ce.x86_64            17.03.1.ce-1.el7.centos            @docker-ce-stable
#   docker-ce.x86_64            17.03.0.ce-1.el7.centos            docker-ce-stable
#   Available Packages
# Step2 : 安装指定版本的Docker-CE: (VERSION 例如上面的 17.03.0.ce.1-1.el7.centos)
# sudo yum -y install docker-ce-[VERSION]  

安装kubernetes组件: kubelet, kubeadm, kubectl  
cat <<EOF > ~/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

sudo cp ./kubernetes.repo /etc/yum.repos.d/kubernetes.repo
setenforce 0
yum makecache fast
yum install -y kubelet kubeadm kubectl
systemctl enable kubelet && systemctl start kubelet

# kubernetes
k8s.gcr.io/kube-apiserver:v1.12.0
k8s.gcr.io/kube-controller-manager:v1.12.0
k8s.gcr.io/kube-scheduler:v1.12.0
k8s.gcr.io/kube-proxy:v1.12.0
k8s.gcr.io/etcd:3.2.24
k8s.gcr.io/pause:3.1

# network and dns
quay.io/coreos/flannel:v0.10.0-amd64
k8s.gcr.io/coredns:1.2.2

# helm and tiller
gcr.io/kubernetes-helm/tiller:v2.11.0

# nginx ingress
quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.19.0
k8s.gcr.io/defaultbackend:1.4

# dashboard and metric-sever
k8s.gcr.io/kubernetes-dashboard-amd64:v1.10.0
gcr.io/google_containers/metrics-server-amd64:v0.3.0

#拉取镜像
docker pull 
#为镜像创建标签
docker tag 
#删除镜像
docker rmi

sudo docker pull registry.cn-beijing.aliyuncs.com/flashpig8014/kube-apiserver-amd64:v1.12.1
sudo docker pull registry.cn-beijing.aliyuncs.com/flashpig8014/kube-controller-manager-amd64:v1.12.1
sudo docker pull registry.cn-beijing.aliyuncs.com/flashpig8014/kube-scheduler-amd64:v1.12.1
sudo docker pull registry.cn-beijing.aliyuncs.com/flashpig8014/kube-proxy-amd64:v1.12.1
sudo docker pull registry.cn-beijing.aliyuncs.com/flashpig8014/pause-amd64:v3.1
sudo docker pull registry.cn-beijing.aliyuncs.com/flashpig8014/etcd-amd64:v3.2.24
sudo docker pull registry.cn-beijing.aliyuncs.com/flashpig8014/coredns:1.2.2
sudo docker pull registry.cn-beijing.aliyuncs.com/flashpig8014/flannel:0.10.0

sudo docker tag registry.cn-beijing.aliyuncs.com/flashpig8014/kube-apiserver-amd64:v1.12.1 k8s.gcr.io/kube-apiserver:v1.12.1
sudo docker tag registry.cn-beijing.aliyuncs.com/flashpig8014/kube-controller-manager-amd64:v1.12.1 k8s.gcr.io/kube-controller-manager:v1.12.1
sudo docker tag registry.cn-beijing.aliyuncs.com/flashpig8014/kube-scheduler-amd64:v1.12.1 k8s.gcr.io/kube-scheduler:v1.12.1
sudo docker tag registry.cn-beijing.aliyuncs.com/flashpig8014/kube-proxy-amd64:v1.12.1 k8s.gcr.io/kube-proxy:v1.12.1
sudo docker tag registry.cn-beijing.aliyuncs.com/flashpig8014/pause-amd64:v3.1 k8s.gcr.io/pause:3.1
sudo docker tag registry.cn-beijing.aliyuncs.com/flashpig8014/etcd-amd64:v3.2.24 k8s.gcr.io/etcd:3.2.24
sudo docker tag registry.cn-beijing.aliyuncs.com/flashpig8014/coredns:1.2.2 k8s.gcr.io/coredns:1.2.2
sudo docker tag registry.cn-beijing.aliyuncs.com/flashpig8014/flannel:0.10.0 quay.io/coreos/flannel:v0.10.0-amd64

sudo docker rmi registry.cn-beijing.aliyuncs.com/flashpig8014/kube-apiserver-amd64:v1.12.1
sudo docker rmi registry.cn-beijing.aliyuncs.com/flashpig8014/kube-controller-manager-amd64:v1.12.1
sudo docker rmi registry.cn-beijing.aliyuncs.com/flashpig8014/kube-scheduler-amd64:v1.12.1
sudo docker rmi registry.cn-beijing.aliyuncs.com/flashpig8014/kube-proxy-amd64:v1.12.1
sudo docker rmi registry.cn-beijing.aliyuncs.com/flashpig8014/pause-amd64:v3.1
sudo docker rmi registry.cn-beijing.aliyuncs.com/flashpig8014/etcd-amd64:v3.2.24
sudo docker rmi registry.cn-beijing.aliyuncs.com/flashpig8014/coredns:1.2.2
sudo docker rmi registry.cn-beijing.aliyuncs.com/flashpig8014/flannel:0.10.0

swapoff -a
vm.swappiness=0

/etc/hosts内容
192.168.122.242         master
192.168.122.157         node-1
192.168.122.16          node-2

kubeadm init \
  --kubernetes-version=v1.12.1 \
  --pod-network-cidr=10.244.0.0/16 \
  --apiserver-advertise-address=192.168.122.242