Problem with Kafka and Docker

[devpedro-dias]

Body

I have a problem when I start containers, this message appears in the log when running service-auth:

2025-03-02T05:01:31.722Z INFO 1 --- [service-auth] [ntainer#0-0-C-1] org.apache.kafka.clients.NetworkClient: [Consumer clientId=consumer-auth-service-group-1, groupId=auth-service-group] Node 0 disconnected.

2025-03-02T05:01:31.722702429Z 2025-03-02T05:01:31.722Z WARN 1 --- [service-auth] [ntainer#0-0-C-1] org.apache.kafka.clients.NetworkClient: [Consumer clientId=consumer-auth-service-group-1, groupId=auth-service-group] The connection to node 0 (localhost/127.0.0.1:9092) could not be established. The node may not be available.

As I recently started using Docker and Kafka, I don't know how to solve it, I tried to change the url of application.yml and docker-compose.yml in case there was a problem connecting the containers but I couldn't, finally I left everything //localhost:9092.

I would be grateful if anyone could help me, thank you!

Repo: https://github.com/devpedro-dias/e-commerce

Guidelines

• I have read and understood this category's guidelines before making this post.

[SVAdithya]

try this.. it uses Kraft approach kafka. @devpedro-dias

kafka:
image: apache/kafka:latest
container_name: kafka
ports:
- "9092:9092"
environment:
KAFKA_NODE_ID: 1
KAFKA_PROCESS_ROLES: broker,controller
KAFKA_LISTENERS: PLAINTEXT://kafka:9092,CONTROLLER://localhost:9093
KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka:9092
KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER
KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT
KAFKA_CONTROLLER_QUORUM_VOTERS: 1@localhost:9093
KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1