The pattern covered here is called the stamp pattern because it covers how to replicate a bootable operating system similar to a rubber stamp of sorts. By creating an image of an operating system that is pre-configured for a purpose, it can be easily replicated by simply bringing it up when needed in the same way a stamp works by creating a template.
We will actually create a new AMI to use throughout this book from this method. The AWS Linux AMI, by default, does not allow
sudo without a TTY terminal. There's a simple fix for this but it must be run every time we boot from the AWS Linux AMI unmodified. Instead, we will make this fix to their image and package it into our own AMI.
This is useful because Vagrant requires
sudo to be ...