Model-driven HPA
The "model-driven" in the title above refers to a data model for definition of VNF descriptors, as specified by the ETSI NFV SOL001 specification. Starting with Casablanca, the term "onboarding model" may also be used in reference to this data model. The data model is based on a TOSCA Simple YAML 1.1/1.2 language encoding. In the future (post-Casablanca) this data model may also be encoded using YANG. The data model is persisted as an artifact in the TOSCA CSAR flle (zip archive) as specified by the ETSI NFV SOL004 specification. The specification of HPA requirements is incorporated in the VNFD definition.
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