The third tool, alongside Docker and Docker Compose, which we installed during Chapter 1, Installing Docker Locally was Docker Machine; this is a command line tool which allows you to manage both local and remote Docker hosts.
In this chapter, we are going to look at the basic usage of three of the public cloud drivers by using Docker Machine to provision Docker hosts in them. We will be launching our Docker hosts in the following:
Digital Ocean https://www.digitalocean.com/
Amazon Web Services - https://aws.amazon.com/
Microsoft Azure - https://azure.microsoft.com/