AWS::DirectoryService::SimpleAD:

Properties:
  CreateAlias: |
    "A unique alias to assign to the directory. AWS Directory Service uses the alias to construct the access URL for the directory, such as http://alias.awsapps.com. By default, AWS CloudFormation does not create an alias."
  Description: |
    "A description of the directory."
  EnableSso: |
    "Whether to enable single sign-on for a directory. If you don't specify a value, AWS CloudFormation disables single sign-on by default."
  Name: |
    "The fully qualified name for the directory, such as corp.example.com."
  Password: |
    "The password for the directory administrator. AWS Directory Service creates a directory administrator account with the user name Administrator and this password."
  ShortName: |
    "The NetBIOS name of the on-premises directory, such as CORP."
  Size: |
    "Small | Large"
  VpcSettings: |
    {
      "SubnetIds" => [ "sub-xwxkeidow", "sub-kxiuwqls"], # A list of two subnet IDs for the directory servers. Each subnet must be in different Availability Zones (AZ). AWS Directory Service creates a directory server and a DNS server in each subnet.
      "VpcId" => "vpc-xksueixl"
    }