The Metadata that will be configured for the Instance

CF_Deploying_ADDS_Metadata.yaml

Metadata:
      'AWS::CloudFormation::Authentication':
        S3AccessCreds:
          type: S3
          buckets:
            - !Ref S3BucketName
          roleName: !Ref HostRole
      'AWS::CloudFormation::Init':
        configSets: 
          config:
            - get-files 
            - configure-instance
        get-files:
          files:
            'c:\s3-downloads\scripts\Join-Domain.ps1':
              source: https://s3.amazonaws.com/s3-cfn-bootstrap/scripts/Join-Domain.ps1
              authentication: S3AccessCreds
            'c:\s3-downloads\scripts\Add-WindowsComponents.ps1':
              source: https://s3.amazonaws.com/s3-cfn-bootstrap/scripts/Add-WindowsComponents.ps1
              authentication: S3AccessCreds
            'c:\s3-downloads\scripts\Configure-ADForest.ps1':
              source: https://s3.amazonaws.com/s3-cfn-bootstrap/scripts/Configure-ADForest.ps1
              authentication: S3AccessCreds
        configure-instance:
          commands:
            1-set-powershell-execution-policy:
              command: >-
                powershell.exe -Command "Set-ExecutionPolicy UnRestricted -Force"
              waitAfterCompletion: '0'
            2-rename-computer:
              command: !Join
                - ''
                - - >-
                  -  powershell.exe -Command "Rename-Computer -Restart -NewName "
                  -  !Ref Hostname
              waitAfterCompletion: forever  
            3-install-windows-components:
              command: >-
                powershell.exe -Command "c:\s3-downloads\scripts\Add-WindowsComponents.ps1"
              waitAfterCompletion: '0'
            4-install-ADForest:
              command: !Join
                - ''
                - - >-
                  - powershell.exe -Command "c:\s3-downloads\scripts\Configure-ADForest.ps1 -DomainName '
                  - !Ref DomainDNSName
                  - ''' -DomainNetBiosName '''
                  - !Ref DomainNetBiosName
                  - ''' -DomainMode '''
                  - !Ref DomainMode
                  - ''' -ForestMode '''
                  - !Ref ForestMode 
                  - ''' -SafeModeAdministratorPassword ''' 
                  - !Ref SafeModeAdministratorPassword
                  - '''"'
              waitAfterCompletion: forever