Per default, the docker commands can only be run by root, in order to allow another user to fully operate docker you need to make the following changes.
// add your user to docker usergroup $ sudo usermod -aG docker yourusername // to make this effective login/logout or start a new terminal session with: $ su yourusername // test-1 (should see the docker usergroup listed here): $ id yourusername // test-2: $ docker info