https://docs.docker.com/machine/install-machine/
# curl -L https://github.com/docker/machine/releases/download/v0.9.0/docker-machine-`uname -s`-`uname -m` >/tmp/docker-machine && chmod +x /tmp/docker-machine && cp /tmp/docker-machine /usr/local/bin/docker-machine
# docker-machine create --driver generic --generic-ip-address=proxmox1 --generic-ssh-port=22001 --generic-ssh-key ~/.ssh/id_rsa proxmox1