docker-compose.yml

version: "3.9"

services:
  kafka:
    image: apache/kafka-native:3.8.0
    ports:
      - "9092:9092"
    environment:
      # Configure listeners for both docker and host communication
      KAFKA_LISTENERS: CONTROLLER://localhost:9091,HOST://0.0.0.0:9092,DOCKER://0.0.0.0:9093
      KAFKA_ADVERTISED_LISTENERS: HOST://localhost:9092,DOCKER://kafka:9093
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: CONTROLLER:PLAINTEXT,DOCKER:PLAINTEXT,HOST:PLAINTEXT

      # Settings required for KRaft mode
      KAFKA_NODE_ID: 1
      KAFKA_PROCESS_ROLES: broker,controller
      KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER
      KAFKA_CONTROLLER_QUORUM_VOTERS: 1@localhost:9091

      # Listener to use for broker-to-broker communication
      KAFKA_INTER_BROKER_LISTENER_NAME: DOCKER

      # Required for a single node cluster
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_CREATE_TOPICS: "test-topic:1:1"
    volumes:
      - kafka-data:/opt/kafka/logs
    healthcheck:
      test: ["CMD", "kafka-topics.sh", "--bootstrap-server", "localhost:9092", "--list"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 30s  # Даёт время на KRaft init
    networks:
      - kafka-net

  kafka-ui:
    image: kafbat/kafka-ui:main
    ports:
      - 8080:8080
    environment:
      DYNAMIC_CONFIG_ENABLED: "true"
      KAFKA_CLUSTERS_0_NAME: local
      KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS: kafka:9093
    depends_on:
      kafka:
        condition: service_healthy
    networks:
      - kafka-net

  app:
    build:
      context: ./Kafka.ConsoleApp
      dockerfile: Dockerfile
    depends_on:
      kafka:
        condition: service_healthy  # Ждём Kafka ready
    environment:
      - Kafka__BootstrapServers=kafka:9093  
      - Kafka__Topic=test-topic
      - Kafka__GroupId=test-consumer-group
    volumes:
      - ./Kafka.ConsoleApp/appsettings.json:/app/appsettings.json
    networks:
      - kafka-net

volumes:
  kafka-data:

networks:
  kafka-net:
    driver: bridge