docker tips

# create the 'docker' group
vagrant@vagrant-ubuntu-raring-64:~$ sudo groupadd docker
# add your user to the 'docker' group
vagrant@vagrant-ubuntu-raring-64:~$ sudo gpasswd -a vagrant docker
Adding user vagrant to group docker
# restart docker so it uses the 'docker' group
vagrant@vagrant-ubuntu-raring-64:~$ sudo service docker restart
docker stop/waiting
docker start/running, process 12032

re-login to make group effect!