This is pretty easy to do, but not easy to find in the documentation.
create /etc/default/docker with DOCKER_OPTS
% echo "DOCKER_OPTS="--dns 8.8.8.8"" >> /etc/default/docker
Restart the docker Service
% service docker restart
This is pretty easy to do, but not easy to find in the documentation.
% echo "DOCKER_OPTS="--dns 8.8.8.8"" >> /etc/default/docker
docker Service% service docker restart