func IsVersionString(path string) bool {
	_, err := goversion.NewSemver(path)
	if err != nil {
		return false
	}
	vs := Version{}
	return yaml.Unmarshal([]byte(path), &vs) == nil
}

// TagToVersionString converts an istio container tag into a version string
func TagToVersionString(path string) (string, error) {
	path = strings.TrimPrefix(path, releasePrefix)
	ver, err := goversion.NewSemver(path)
	if err != nil {
		return "", err
	}