compose.yaml

services:

  app:
    container_name: app
    build:
      context: .
    ports:
      - "80:80"
    environment:
      SERVER_PORT: "80"
      SPRING_PROFILES_ACTIVE: "default"
      KAFKA_TOPIC_1: spring-kafka-example-simple-topic
      KAFKA_BOOTSTRAP_SERVERS: kafka:9092
      KAFKA_GROUP_ID: spring-kafka-example-group
      KAFKA_AUTO_OFFSET_RESET: earliest
      KAFKA_KEY_DESERIALIZER: org.apache.kafka.common.serialization.StringDeserializer
      KAFKA_VALUE_DESERIALIZER: org.apache.kafka.common.serialization.StringDeserializer
      KAFKA_MISSING_TOPICS_FATAL: false
    depends_on:
      - kafka
    networks:
      - kafka-net

  kafka:
    image: apache/kafka:4.0.0
    container_name: kafka
    ports:
      - "9092:9092"
      - "9093:9093"
    environment:
      KAFKA_NODE_ID: 1
      KAFKA_PROCESS_ROLES: broker,controller
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka:9092,PLAINTEXT_HOST://localhost:9093
      KAFKA_LISTENERS: CONTROLLER://0.0.0.0:9094,PLAINTEXT://0.0.0.0:9092,PLAINTEXT_HOST://0.0.0.0:9093
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: PLAINTEXT
      KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER
      KAFKA_CONTROLLER_QUORUM_VOTERS: 1@kafka:9094
      KAFKA_LOG_DIRS: /tmp/kraft-combined-logs
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: 'false'
    networks:
      - kafka-net

  kafka-init:
    container_name: kafka-init
    image: apache/kafka:4.0.0
    depends_on:
      kafka:
        condition: service_started
    command: [ "/bin/bash", "-c", "/create_topic.sh" ]
    environment:
      KAFKA_HOST: kafka
      KAFKA_PORT: 9092
      KAFKA_TOPIC_CREATE: spring-kafka-example-simple-topic
    volumes:
      - type: bind
        source: ./docker/create_topic.sh
        target: /create_topic.sh
    init: true
    networks:
      - kafka-net

networks:
  kafka-net:
    driver: bridge