heat_template_version: 2014-10-16
parameters:
  SourceImage:
    type: string
    default: my_image
resources:
  A:
    type: OS::Nova::Server
    properties:
      image: {get_param: SourceImage}
  B:
    type: FileInclude
    Path: examples/lib_hot.yaml
    SubKey: resources.GenericB
    parameters:
      ImportantValue: {"Fn::Join": [ '', ['one', 'two', 'three']]}