# /etc/docker/daemon.json
# (stop docker before editing et start after)
{
    "data-root": "/data/docker",
    "hosts": [
        "unix:///var/run/docker.sock",
        "tcp://0.0.0.0:2376"
    ],
    "insecure-registries": [
        "registry-host:5000"
    ],
    "storage-driver": "devicemapper"
}