// version that kubeadm SetInitDynamicDefaultssupports.
func NormalizeKubernetesVersion(cfg *kubeadmapi.ClusterConfiguration) error {
	isCIVersion := kubeadmutil.KubernetesIsCIVersion(cfg.KubernetesVersion)

	// Requested version is automatic CI build, thus use KubernetesCI Image Repository for core images
	if isCIVersion && cfg.ImageRepository == kubeadmapiv1.DefaultImageRepository {
		cfg.CIImageRepository = constants.DefaultCIImageRepository
	}