docker-compose.yml

---
services:
  zookeeper:
    image: confluentinc/cp-zookeeper:${ZOOKEEPER_VERSION}
    container_name: zookeeper
    volumes:
      - zookeeper-data:/var/lib/zookeeper/data
      - zookeeper-logs:/var/lib/zookeeper/log
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000
    deploy:
      resources:
        limits:
          memory: ${ZOOKEEPER_MEMORY_LIMIT}

  kafka-broker1:
    image: confluentinc/cp-kafka:${KAFKA_VERSION}
    container_name: kafka-broker1
    ports:
      - "${KAFKA_PORT}:9092"
    depends_on:
      - zookeeper
    volumes:
      - kafka-data:/var/lib/kafka/data
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: 'zookeeper:2181'
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_INTERNAL:PLAINTEXT
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://localhost:9092,PLAINTEXT_INTERNAL://broker:29092
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
    deploy:
      resources:
        limits:
          memory: ${KAFKA_BROKER_MEMORY_LIMIT}

volumes:
  zookeeper-data:
    driver: local
  zookeeper-logs:
    driver: local
  kafka-data:
    driver: local