if missingSingleSigningFile && !anySpecificFilesSet(controllerContext.ComponentConfig.CSRSigningController) {
		logger.Info("Skipping CSR signer controller because no csr cert/key was specified")
		return nil, false, nil
	}
	if !missingSingleSigningFile && anySpecificFilesSet(controllerContext.ComponentConfig.CSRSigningController) {

		errs = append(errs, fmt.Errorf("%q: %v", "cluster-signing-legacy-unknown", err))
	}

	singleSigningFile := len(o.ClusterSigningCertFile) > 0 || len(o.ClusterSigningKeyFile) > 0
	anySpecificFilesSet := len(o.KubeletServingSignerConfiguration.CertFile) > 0 || len(o.KubeletServingSignerConfiguration.KeyFile) > 0 ||
		len(o.KubeletClientSignerConfiguration.CertFile) > 0 || len(o.KubeletClientSignerConfiguration.KeyFile) > 0 ||