docker-compose.yml

version: "3.9"
services:
  zookeeper_1:
    build: ./zookeeper
    container_name: zookeeper_1
    hostname: zookeeper_1
    ports:
      - 2281:2181 # External listener
    networks:
      - network_zookeeper
    labels:
      - zookeeper
    environment:
      - ZK_MYID=1
  zookeeper_2:
    build: ./zookeeper
    container_name: zookeeper_2
    hostname: zookeeper_2
    ports:
      - 2282:2181 # External listener
    networks:
      - network_zookeeper
    labels:
      - zookeeper
    environment:
      - ZK_MYID=2
  zookeeper_3:
    build: ./zookeeper
    container_name: zookeeper_3
    hostname: zookeeper_3
    ports:
      - 2283:2181 # External listener

    networks:
      - network_zookeeper
    labels:
      - zookeeper
    environment:
      - ZK_MYID=3

  kafka_1:
    build: ./kafka
    hostname: kafka_1
    ports:
      - 9101:9101 # External listener
    container_name: kafka_1
    networks:
      - network_kafka
    labels:
      - kafka
    environment:
      - KAFKA_BROKER_ID=1
      - KAFKA_EXTERNAL_PORT=9101
      - KAFKA_EXTERNAL_HOST=localhost
      - KAFKA_ZOOKEEPER_CONNECT=172.17.0.1:2281,172.17.0.1:2282,172.17.0.1:2283
    depends_on:
      - zookeeper_1
      - zookeeper_2
      - zookeeper_3
  kafka_2:
    build: ./kafka
    hostname: kafka_2
    ports:
      - 9102:9102 # External listener
    container_name: kafka_2
    networks:
      - network_kafka
    labels:
      - kafka
    environment:
      - KAFKA_BROKER_ID=2
      - KAFKA_EXTERNAL_PORT=9102
      - KAFKA_EXTERNAL_HOST=localhost
      - KAFKA_ZOOKEEPER_CONNECT=172.17.0.1:2281,172.17.0.1:2282,172.17.0.1:2283
    depends_on:
      - zookeeper_1
      - zookeeper_2
      - zookeeper_3
  kafka_3:
    build: ./kafka
    hostname: kafka_3
    ports:
      - 9103:9103 # External listener
    container_name: kafka_3
    networks:
      - network_kafka
    labels:
      - kafka
    environment:
      - KAFKA_BROKER_ID=3
      - KAFKA_EXTERNAL_PORT=9103
      - KAFKA_EXTERNAL_HOST=localhost
      - KAFKA_ZOOKEEPER_CONNECT=172.17.0.1:2281,172.17.0.1:2282,172.17.0.1:2283
    depends_on:
      - zookeeper_1
      - zookeeper_2
      - zookeeper_3

networks:
  network_kafka:
    name: network_kafka
    driver: bridge
    ipam:
      config:
        - subnet: 192.168.50.0/24
          gateway: 192.168.50.1
  network_zookeeper:
    name: network_zookeeper
    driver: bridge
    ipam:
      config:
        - subnet: 192.168.51.0/24
          gateway: 192.168.51.1