heat_template_version: 2013-05-23

resources: 
  rg: 
    type: OS::Heat::ResourceGroup
    properties: 
      count: 2
      resource_def: 
        type: OS::Heat::RandomString

outputs: 
  resource1_id: 
    value: { get_attr: [rg, resource.0] }
  resource2_id: 
    value: { get_attr: [rg, resource.1] }
  resource1_value: 
    value: { get_attr: [rg, resource.0.value] }
  resource2_value: 
    value: { get_attr: [rg, resource.1.value] }