## 安裝Kubectl客戶端
```
wget https://dl.k8s.io/v1.12.1/kubernetes-client-linux-amd64.tar.gz
tar -xzvf kubernetes-client-linux-amd64.tar.gz
mv kubernetes/client/bin/kubectl /usr/local/bin/
?
rm -rf kubernetes
rm -rf kubernetes-client-linux-amd64.tar.gz
?
# 創建證書
cat << EOF | tee /etc/cfssl/k8s/kubelet-172.16.0.51.json
{
"CN": "system:node:172.16.0.51",
"hosts": [
"172.16.0.51",
"master01.k8s.blit.cloud"
],
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"L": "Guangxi",
"ST": "Nanning",
"O": "system:nodes",
"OU": "Kubernetes-manual"
}
]
}
EOF
cfssl gencert \
-ca=/etc/pki/k8s/k8s-ca.pem -ca-key=/etc/pki/k8s/k8s-ca-key.pem \
-config=/etc/cfssl/ca-config.json \
-profile=kubernetes \
/etc/cfssl/k8s/kubelet-172.16.0.51.json | cfssljson -bare kubelet-172.16.0.51
?
# 創建連接配置
kubectl config set-cluster kubernetes \
--certificate-authority=/etc/pki/k8s/k8s-ca.pem \
--embed-certs=true \
--server=https://172.16.0.51:6443 \
--kubeconfig=kubelet.172.16.0.51.kubeconfig
kubectl config set-credentials system:node:172.16.0.51 \
--client-certificate=/etc/pki/k8s/kubelet-172.16.0.51.pem \
--client-key=/etc/pki/k8s/kubelet-172.16.0.51-key.pem \
--embed-certs=true \
--kubeconfig=kubelet.172.16.0.51.kubeconfig
kubectl config set-context system:node:172.16.0.51@kubernetes \
--cluster=kubernetes \
--user=system:node:172.16.0.51 \
--kubeconfig=kubelet.172.16.0.51.kubeconfig
kubectl config use-context system:node:172.16.0.51@kubernetes \
--kubeconfig=kubelet.172.16.0.51.kubeconfig
`````
