// profile format (compiled-in, file, HTTP, etc.).
func ReadProfileYAML(profile, manifestsPath string) (string, error) {
	var err error
	var globalValues string

	// Get global values from profile.
	switch {
	case util.IsFilePath(profile):
		if globalValues, err = readFile(profile); err != nil {
			return "", err
		}
	default:
		if globalValues, err = LoadValues(profile, manifestsPath); err != nil {