Connect to Kafka running in Docker

Question

I setup a single node Kafka Docker container on my local machine like it is described in the Confluent documentation (steps 2-3).

In addition, I also exposed Zookeep

Answer 1

before zookeeper

1. docker container run --name zookeeper -p 2181:2181 zookeeper

after kafka

2. docker container run --name kafka -p 9092:9092 -e KAFKA_ZOOKEEPER_CONNECT=192.168.8.128:2181 -e KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://ip_address_of_your_computer_but_not_localhost!!!:9092 -e KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR=1 confluentinc/cp-kafka

in kafka consumer and producer config

@Bean
public ProducerFactory producerFactory() {
    Map configProps = new HashMap<>();
    configProps.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, "192.168.8.128:9092");
    configProps.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
    configProps.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
    return new DefaultKafkaProducerFactory<>(configProps);
}

@Bean
public ConsumerFactory consumerFactory() {
    Map props = new HashMap<>();
    props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, "192.168.8.128:9092");
    props.put(ConsumerConfig.GROUP_ID_CONFIG, "group_id");
    props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
    props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
    return new DefaultKafkaConsumerFactory<>(props);
}

I run my project with these regulations. Good luck dude.