Book Image

Mastering AWS CloudFormation

By : Karen Tovmasyan
Book Image

Mastering AWS CloudFormation

By: Karen Tovmasyan

Overview of this book

DevOps and the cloud revolution have forced software engineers and operations teams to rethink how to manage infrastructures. With this AWS book, you'll understand how you can use Infrastructure as Code (IaC) to simplify IT operations and manage the modern cloud infrastructure effectively with AWS CloudFormation. This comprehensive guide will help you explore AWS CloudFormation from template structures through to developing complex and reusable infrastructure stacks. You'll then delve into validating templates, deploying stacks, and handling deployment failures. The book will also show you how to leverage AWS CodeBuild and CodePipeline to automate resource delivery and apply continuous integration and continuous delivery (CI/CD) practices to the stack. As you advance, you'll learn how to generate templates on the fly using macros and create resources outside AWS with custom resources. Finally, you'll improve the way you manage the modern cloud in AWS by extending CloudFormation using AWS serverless application model (SAM) and AWS cloud development kit (CDK). By the end of this book, you'll have mastered all the major AWS CloudFormation concepts and be able to simplify infrastructure management.
Table of Contents (17 chapters)
1
Section 1: CloudFormation Internals
4
Section 2: Provisioning and Deployment at Scale
9
Section 3: Extending CloudFormation

Deploying to multiple regions

We are now going to start creating StackSet for a single account, but in multiple regions. We will begin with AWS Console.

Using AWS Console

Let's start by deploying StackSet with the core template in a single account (for example, our main account). We'll begin with AWS Console:

  1. Once we log in to the console, we will go to CloudFormation - StackSets and click on Create StackSet. We will choose Template is ready, upload our core.yaml file (which you will find in the GitHub repository) and click Next. The template will be uploaded to S3 automatically:
    Figure 5.2 – CloudFormation StackSet console

    Figure 5.2 – CloudFormation StackSet console

  2. Now we need to supply the StackSet name and parameters and hit Next:
    Figure 5.3 – CloudFormation StackSet console

    Figure 5.3 – CloudFormation StackSet console

    Important note

    We insert parameter values for the StackSet and these parameters will be inherited by stack instances. It is not yet possible to add unique parameters per stack instance during StackSet creation, since...