1、安裝docker、kubelet、kubectl、kubeadm、socat
# cat kubernets.repo
[kubernetes]
name=Kubernetes
baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
安裝相應版本的kubernets
2、將需要的鏡像都加載到服務器上面：
http://www.cnblogs.com/cuishuai/p/8483496.html
3、在master上面copy cni文件到node節點上面：
#mkdir -p /etc/cni/net.d
在master上面copy：
#scp /etc/cni/net.d/10-flannel.conf 10.0.1.19:/etc/cni/net.d
4、加入cluster
首先k8s默認的cgroup-driver為cgroupfs，但是yum安裝kubelet的時候自動修改為systemd，而docker通過docker info命令查看是cgroupfs，所以需要將k8s的修改為cgroupfs：
#vim /etc/systemd/system/kubelet.service.d/10-kubeadm.conf
Environment="KUBELET_CGROUP_ARGS=--cgroup-driver=cgroupfs"
#systemctl enable docker
#systemctl enable kubelet
#kubeadm join --token c04f89.b781cdb55d83c1ef 10.10.3.4:63 --discovery-token-ca-cert-hash sha256:986e83a9cb948368ad0552b95232e31d3b76e2476b595bd1d905d5242ace29af --ignore-preflight-errors=Swap
#kubectl label node km1 node-role.kubernetes.io/node=