How to change a path docker default

Kiểm tra dung lượng của /var/lib/docker
```
# du -h /var/lib/docker
```
Tạm dừng service của Docker Daemon
```
# service docker stop
```
Chuyển toàn bộ file của docker default sang thư mục mới
```
# mv /var/lib/docker /data/
```
Tạo một symlink đến default docker
```
# ln -s /data/docker /var/lib/docker
```
Start Docker Daemon trở lại
```
# service docker start
```

Kiểm tra dung lượng của docker default

# du -h /var/lib/docker
# du -h /data/docker