**k8s 命令自动补全 **

yum install -y epel-release bash-completion
source /usr/share/bash-completion/bash_completion
source <(kubectl completion bash)
echo "source <(kubectl completion bash)" >> ~/.bashrc

或者

yum install -y epel-release bash-completion
cp /usr/share/bash-completion/completions/docker /etc/bash_completion.d/
systemctl enable --now docker

在mac上

brew install bash-completion
source $(brew --prefix)/etc/bash_completion
source <(kubectl completion bash)