Summary

AWS CloudFormation is increasing in popularity, as it provides the way to define a consistent and repeatable environment. You can do all the things that you can do either on the AWS Console or through CLI. You learnt the required details to build the stack and created the base network and one EC2 instance as an example. CloudFormation documentation is vast and not all the aspects of writing the YAML CloudFormation template are covered here. But this chapter will definitely help you to groom your skills in building the CloudFormation template. When building templates, intrinsic functions are key to capture the runtime values and perform an action based on the value. Understand those intrinsic functions. We have touched base on nested stack and cross stack references, which help you bring modularity into the CloudFormation template. In the next chapter, you will learn about the AWS monitoring service CloudWatch.