README.md

Macros

Creates a Cloudformation stack for each macro. each stack creates a lambda function the macro uses.

Count

• Original source code can be found here.

The Count macro provides a template-wide Count property for CloudFormation resources.

To make use of the macro, add Transform: Count to the top level of your CloudFormation template.

{
  "AWSTemplateFormatVersion": "2010-09-09",
  "Description": "Infrastructure S3 CFN Template",
  "Transform": "Count",
  "Parameters": {
      ...
  },
  "Resources": {
      ...
  }
}

To create multiple copies of a resource, add a Count property with an integer value.

      "Properties": {
      "Count": {
        "Ref": "s3BucketCount"
      }
    }
  }

String

• Original source code can be found here.

The String macro provides a template-wide String property for CloudFormation resources.

To make use of the macro, Place the transform where you would like the output to be placed and provide the input string as the value for the InputString Parameter.

{
    "Fn::Transform": {
        "Name": "String", "Parameters": {
            "InputString": { "Ref": "mystring" },
            "Operation": "Lower"
        }
    }
}