code: func (s *Server) getSpec(request *restful.Request, response *restful.Response) {
  	info, err := s.host.GetCachedMachineInfo()
  	if err != nil {
  		response.WriteError(http.StatusInternalServerError, err)
  		return
  	}
  	response.WriteEntity(info)
  }
docs: // getSpec handles spec requests against the Kubelet.