// port is found, an error is returned.
func resolvePort(portReference intstr.IntOrString, container *v1.Container) (int, error) {
	if portReference.Type == intstr.Int {
		return portReference.IntValue(), nil
	}
	portName := portReference.StrVal
	port, err := strconv.Atoi(portName)
	if err == nil {
		return port, nil
	}
	for _, portSpec := range container.Ports {
		if portSpec.Name == portName {