SELINUX=disabled
安装docker
yum install -y docker
systemctl enable docker && systemctl start docker
/etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-$basearch
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg
安装工具
yum install -y kubelet kubeadm kubectl
systemctl enable kubelet && systemctl start kubelet
sysctl内核参数
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
docker和kubelet使用相同cgroup
docker info | grep -i cgroup
cat /etc/systemd/system/kubelet.service.d/10-kubeadm.conf
初始化安装，并指定cidr
kubeadm init --pod-network-cidr=10.244.0.0/16
注意保留输出：
kubeadm join --token <token> <master-ip>:<master-port> --discovery-token-ca-cert-hash sha256:<hash>
选用flannel网络
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/v0.9.1/Documentation/kube-flannel.yml
status
kubectl get po -n kube-system
