---
AWSTemplateFormatVersion: "2010-09-09"
Description: >
  Exclusive Property types
Resources:
  myInstance:
    Type: AWS::EC2::Instance
    Properties:
      ImageId: !FindInMap [ amimap, !Ref "AWS::Region", !GetAtt myInstance.AvailabilityZone ]
      UserData:
        Fn::Base64:
        - Random String