Further reading
- Template anatomy: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/template-anatomy.html
- Dynamic referencing: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/dynamic-references.html
- Deletion policies: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-deletionpolicy.html
- Sample templates: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/cfn-sample-templates.html