Docker-Cloud "own node" doesn't connect (ubuntu server)

ubuntu docker docker-cloud

ok, I got it working on Ubuntu Server 16.04

I first enabled the docker rest API:

1) open lib/systemd/system/docker.service
2) edit the line that starts with ExecStart to ExecStart=/usr/bin/docker daemon -H fd:// -H tcp://0.0.0.0:2375
3) reload daemon: systemctl daemon-reload
4) restart docker service: service docker restart
5) execute dockercloud-agend script.

Now it should work.