In the exported csar service-VsnSer-csar.csar from SDC, compared to the onoarding csar vsn.csar, the 'artifacts' definition are missing in the VDU definition:

In the boarding csar's VDU definition, we have:

VDU_vsn1_0:
  type: tosca.nodes.nfv.Vdu.Compute

  properties:

     ......

  capabilities:

    ... ...Ca

  requirements:

    ... ...

   artifacts:

      file: ...

      type: tosca.artifacts.nfv.SwImage

However, in the expored csar's VDU defintion, we don't have the 'artifacts' definitions any more:

VDU_vsn1_0:
  type: tosca.nodes.nfv.Vdu.Compute

  properties:

     ......

  capabilities:

    ... ...

  requirements:

    ... ...