heat_template_version: pike description: > This is a default no-op template which provides empty user-data which can be passed to the OS::Nova::Server resources. This template can be replaced with a different implementation via the resource registry, such that deployers may customize their first-boot configuration. resources: userdata: type: OS::Heat::MultipartMime outputs: # This means get_resource from the parent template will get the userdata, see: # http://docs.openstack.org/developer/heat/template_guide/composition.html#making-your-template-resource-more-transparent # Note this is new-for-kilo, an alternative is returning a value then using # get_attr in the parent template instead. OS::stack_id: value: {get_resource: userdata}