_ = sa.AddFileKubeMeshConfig(meshCfgFile)
			}

			// If we're not using kube (files only), add defaults for some resources we expect to be provided by Istio
			if !useKube {
				err := sa.AddDefaultResources()
				if err != nil {
					return err
				}
			}

			// If files are provided, treat them (collectively) as a source.
			parseErrors := 0
			if len(readers) > 0 {