Docker中免去sudo的设置方法

• Add the docker group if it doesn't already exist:

  sudo groupadd docker
  

• Add the connected user "$USER" to the docker group. Change the user name to match your preferred user if you do not want to use your current user:

  sudo gpasswd -a $USER docker
  

• Either do a newgrp docker or log out/in to activate the changes to groups.

• You can use

  docker run hello-world
  

  to check if you can run docker without sudo.