The next service that we need to create is a database. If you look at the Ghost documentation you'll notice that MySQL 5.7 or 8.0 is required to run. This is why we will be using Amazon's Relational Database Service (RDS) which is a relational database that supports SQL.
Most of our install will be the default settings with a few key exceptions. You'll want to make sure you choose MySQL as the database as well as the free tier option or you could incur a non-trivial charge to your AWS account.