AWS CloudFormation is a service in AWS that provides an easy way to build a collection of AWS resources and services, deploy them consistently and efficiently, and manage them from initiation to deletion.
CloudFormation uses templates to describe the resources and their dependencies so they can be deployed together in what is called a stack. With a CloudFormation template you can create, update, and delete all the resources listed in a stack as a unit. This provides a better more consistent mechanism for managing resources together instead of individually.

Training

Here is a list of recommended training materials to get started with using CloudFormation to manage your resources in AWS.

• Video: Introduction to AWS CloudFormation - 10 minutes - AWS Skillbuilder

• Video: What is YAML? - 10 minutes - YouTube

• e-Learning: Learning AWS CloudFormation - 45 minutes - LinkedIn Learning

• e-Learning: AWS CloudFormation Workshop - up to 10 hours - AWS Workshop

• Documentation: Get Started with CloudFormation - AWS User guide

Resources

Additional Resources to provide more information about CloudFormation.

• Documentation: AWS CloudFormation Product Page

• Documentation: AWS CloudFormation User Guide

• GitHub Resource: AWS CloudFormation CLI

• Documentation: AWS Resources Supported by CloudFormation

References

These references have multiple artifacts that can help you learn more about CloudFormation.

• DEV.TO Articles on AWS CloudFormation

• AWS Stash - Resource that has all things AWS from many sites.

• AWS re:Post - AWS resource that has questions, knowledge documents, and articles.