func setupTrapInterrupt(consumer *consumergroup.ConsumerGroup) {
osSignalsChannel := make(chan os.Signal, 1)
signal.Notify(osSignalsChannel, os.Interrupt)
go func() {
<-osSignalsChannel
log.Println("closing...")
if err := consumer.Close(); err != nil {
sarama.Logger.Println("Error closing the consumer", err)
}
}()
}
