t.Run(fmt.Sprintf("input:%s/expected:%s", tc.input, tc.expected), func(t *testing.T) {
			tag := KubernetesVersionToImageTag(tc.input)
			t.Logf("kubernetesVersionToImageTag: Input: %q. Result: %q. Expected: %q", tc.input, tag, tc.expected)
			if tag != tc.expected {
				t.Errorf("failed KubernetesVersionToImageTag: Input: %q. Result: %q. Expected: %q", tc.input, tag, tc.expected)
			}
		})
	}
}

		return kubernetesReleaseVersion(body, fetcher)
	}
	return "", errors.Errorf("version %q doesn't match patterns for neither semantic version nor labels (stable, latest, ...)", version)
}

// KubernetesVersionToImageTag is helper function that replaces all
// non-allowed symbols in tag strings with underscores.
// Image tag can only contain lowercase and uppercase letters, digits,
// underscores, periods and dashes.

func GetKubernetesImage(image string, cfg *kubeadmapi.ClusterConfiguration) string {
	repoPrefix := cfg.GetControlPlaneImageRepository()
	kubernetesImageTag := kubeadmutil.KubernetesVersionToImageTag(cfg.KubernetesVersion)
	return GetGenericImage(repoPrefix, image, kubernetesImageTag)
}

// GetDNSImage generates and returns the image for CoreDNS.
func GetDNSImage(cfg *kubeadmapi.ClusterConfiguration) string {