We've verified on our laptop that the services described by the compose file work as intended. Launching the containers is now automated, fixing one of the issues we named earlier. It's now time to see how to deploy to a cloud-hosting provider. This is where we turn to Docker machine.
Docker machine can be used to provision Docker instances inside a VirtualBox host on your laptop. What we'll be doing is provisioning a Docker system on DigitalOcean. The docker-machine command comes with drivers supporting a long list of cloud-hosting providers. It's easy to adapt the instructions shown here for other providers, simply by substituting a different driver.
After signing up for a DigitalOcean account, ...
