cfn-intrinsic-functions.yaml

AWSTemplateFormatVersion: "2010-09-09"
Description: Intrinsic Functions

Parameters:

  InputText:
    Type: String
    Default: Text Value
    Description: "Text Value"

Resources:

  DummyResourceRole: 
    Type: "AWS::IAM::Role"
    Properties: 
      Path: "/"
      AssumeRolePolicyDocument: 
        Version: "2012-10-17"
        Statement: 
          - 
            Effect: "Allow"
            Principal: 
              Service: 
                - "ec2.amazonaws.com"
            Action: 
              - "sts:AssumeRole"

Outputs:

  DemoRef:
    Value: !Ref InputText

  #DemoCidr:
  #  Value: !Cidr [ "192.168.0.0/24", 6, 8 ]

  DemoCidrSelect0:
    Value: !Select [ 0, !Cidr [ "10.0.0.0/16", 4, 8 ]]

  DemoCidrSelect1:
    Value: !Select [ 1, !Cidr [ "10.0.0.0/16", 4, 8 ]]

  ListAZGet0: 
    Value: 
     !Select 
        - 0
        - Fn::GetAZs: !Ref 'AWS::Region'

  ListAZGet1: 
    Value: 
     !Select 
        - 1
        - Fn::GetAZs: !Ref 'AWS::Region'