Use docker without root - xcLtw/about_docker GitHub Wiki

This document used to ubuntu

• Add group docker if it doesn't exist
  sudo groupadd docker
• Add $User to the docker group,notice $User should match the user's your wanted.
  Check current user:
  whoami
  Add user:
  sudo gpasswd -a $User docker
• Active the change to groups
  newgrp docker
• Check for that
  docker images or docker run hello-world

---

20180821.add
The method before don't work for another terminal window,or after you log out. WILL Lose the group docker
SO, sudo usermod -aG docker $USER ,use it ,log out/in ,it seem work fine until now..