Description: examples/source.yaml
HeatTemplateFormatVersion: '2012-12-12'
Parameters:
  SourceImage:
    Default: my_image
    Type: String
Resources:
  A:
    Properties:
      image:
        Ref: SourceImage
    Type: OS::Nova::Server
  B:
    Metadata:
      my_meta:
        Fn::Join:
        - ''
        - - one
          - two
          - three
    Properties:
      image:
        Ref: BImage
    Type: OS::Nova::Server
