Change Docker root folder Ubuntu 14.04 and Ubuntu 16.04

change_docker_root_folder.txt

$ sudo service docker stop
$ gksudo gedit /etc/default/docker

# Use DOCKER_OPTS to modify the daemon startup options.
DOCKER_OPTS="--dns 8.8.8.8 --dns 8.8.4.4 -g /home/jokla/docker/docker/"


$ sudo service docker start

UBUNTU 16.04

See reference [here](https://docs.docker.com/engine/reference/commandline/dockerd//#daemon-configuration-file)
https://chjdev.com/2016/06/07/docker-ubuntu/

$ sudo touch /etc/docker/daemon.json
$ gksudo gedit /etc/docker/daemon.json

```
{
   "graph": "/home/gclaudio/docker/"
}

```

$ sudo systemctl daemon-reload
$ sudo systemctl restart docker
$ sudo systemctl enable docker

if there is an error:
$ sudo journalctl -xe