使docker sudo更少
$ sudo groupadd docker
$ sudo usermod -aG docker $USER
$ newgrp docker
将用户添加到docker组
sudo usermod -aG docker $USER #$USER is your username
写命令docker而不需要写sudo
#for write command docker without need write sudo #add all command in your terminal
sudo groupadd docker
sudo usermod -aG docker $USER
newgrp docker