var (
    rabbitHost     = flag.String("rabbit-host", "127.0.0.1", "RabbitMQ host")
    rabbitPort     = flag.Int("rabbit-port", 5672, "RabbitMQ port")
    rabbitUser     = flag.String("rabbit-user", "guest", "RabbitMQ username")
    rabbitPassword = flag.String("rabbit-password", "guest", "RabbitMQ password")