}

var invalidUsernameErr = fmt.Errorf("Username must be in the form %s", MakeUsername("namespace", "name"))

// SplitUsername returns the namespace and ServiceAccount name embedded in the given username,
// or an error if the username is not a valid name produced by MakeUsername
func SplitUsername(username string) (string, string, error) {
	if !strings.HasPrefix(username, ServiceAccountUsernamePrefix) {
		return "", "", invalidUsernameErr