We'll continue using the vfarcic/cloud-provisioning (https://github.com/vfarcic/cloud-provisioning) repository. It contains configurations and scripts that'll help us out. You already have it cloned. To be on the safe side, we'll pull the latest version:
cd cloud-provisioninggit pull
Let's create the first droplet:
docker-machine create \ --driver digitalocean \ --digitalocean-size 1gb \ --digitalocean-private-networking \ swarm-1
We specified that the Docker Machine should use the digitalocean driver to create an instance in the region we defined as the environment variable DIGITALOCEAN_REGION. The size of the droplet is 1 GB and it has private networking enabled.