CloudFormation is an AWS service that helps us to define resources in a specification document and deploy them. We create a document in a unified manner and then feed that definition document to the CloudFormation service through the management console, the CLI, SDK, or directly through the CloudFormation API. The CloudFormation service will, in turn, deploy all of the resources that we have specified and configure them accordingly. In case of any failures upon deployment, the CloudFormation service will also automatically be able to roll back the resources it created so that we never have half-functional CloudFormation deployments in our AWS account.
The power that CloudFormation gives us is the ability to create complete environments in a repeatable and automated fashion. By removing manual activities from deployments, we make the application inherently...