How to docker without sudo

.docker.without.sudo.md

Copied from https://github.com/sindresorhus/guides/blob/master/docker-without-sudo.md for easier lookups :)

Run Docker commands without sudo

1. Add the docker group if it doesn't already exist

$ sudo groupadd docker

2. Add the connected user $USER to the docker group

Optionally change the username to match your preferred user.

$ sudo gpasswd -a $USER docker

3. Restart the docker daemon

$ sudo service docker restart

If you are on Ubuntu 14.04-15.10, use docker.io instead:

$ sudo service docker.io restart