AWS Pseudo Parameters - krdheeraj51/aws-labs GitHub Wiki

Overview:

Pseudo parameters are predefined parameters provided by AWS CloudFormation. They allow you to reference information about the stack, such as the AWS account ID, region, and stack name, without having to define these values explicitly in your template.

Common Pseudo Parameters:

Property	Description	Example
AWS::AccountId	Returns the AWS account ID of the account in which the stack is being created.	123456789012
AWS::Region	Returns the AWS region in which the stack is being created.	us-east-1
AWS::StackId	Returns the unique identifier of the stack.	arn:aws:cloudformation:us-east-1:123456789012:stack/MyStack/1a2b3c4d-5678-90ab-cdef-EXAMPLE11111
AWS::StackName	Returns the name of the stack as specified during stack creation.	MyStack
AWS::Partition	Returns the partition that the resource is in. For standard AWS regions, the partition is aws. For resources in other partitions, the partition is aws-cn or aws-us-gov.	aws
AWS::URLSuffix	Returns the suffix for the Amazon S3 URL in the current region.	amazonaws.com
AWS::NotificationARNs	Returns the list of notification Amazon Resource Names (ARNs) for the current stack.	arn:aws:sns:us-east-1:123456789012:MyTopic
AWS::NoValue

Example:

Resources:
  MyBucket:
    Type: "AWS::S3::Bucket"
    Properties:
      BucketName: !Sub "${AWS::StackName}-bucket"

Outputs:
  AccountId:
    Description: "The AWS Account ID"
    Value: !Ref "AWS::AccountId"
  Region:
    Description: "The AWS Region"
    Value: !Ref "AWS::Region"
  StackId:
    Description: "The Stack ID"
    Value: !Ref "AWS::StackId"
  StackName:
    Description: "The Stack Name"
    Value: !Ref "AWS::StackName"