1. kubectl的安装

curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.9.0/bin/linux/amd64/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/

2. 配置k8s集群环境

kubectl config set-cluster k8s --server=https://<url> --insecure-skip-tls-verify=true
kubectl config set-credentials k8s-user --username=<username> --password=<password>
kubectl config set-context <NAMESPACE> --cluster=k8s --user=k8s-user --namespace=<NAMESPACE> 
kubectl config use-context <NAMESPACE>

2.2. 添加配置文件的方式

当没有指定--kubeconfig参数和$KUBECONFIG的环境变量的时候，会默认读取${HOME}/.kube/config。

内容如下：

apiVersion: v1
kind: Config
clusters:
- name: local
  cluster:
    certificate-authority: ./ssl/ca.pem
    server: https://192.168.10.3:6443
users:
    client-certificate: ./ssl/cert.pem
    client-key: ./ssl/key.pem
contexts:
- context:
    cluster: local
    user: kubelet
  name: kubelet-cluster.local
current-context: kubelet-cluster.local

3. kubectl config

4. shell自动补齐

echo "source <(kubectl completion bash)" >> ~/.bashrc

参考文章：

• https://kubernetes.io/docs/tasks/tools/install-kubectl/