1.查看

 kubectl --help | grep bash

[root@master ~]# kubectl  --help | grep bash
  completion    Output shell completion code for the specified shell (bash or zsh)

2.执行

 kubectl completion  bash

3.添加

在etc/profile文件第二行添加如下内容source <(kubectl completion bash)

# /etc/profile
source <(kubectl completion bash)
# System wide environment and startup programs, for login setup
# Functions and aliases go in /etc/bashrc

# It's NOT a good idea to change this file unless you know what you

4.执行

source /etc/profile

5.验证

报错：

[root@k8s-master ~]# kubectl ap-bash: _get_comp_words_by_ref: 未找到命令

解决办法：

# yum install -y bash-completion

# source /usr/share/bash-completion/bash_completion

# source <(kubectl completion bash)

就可以完成补全了