docker-compose.yaml

---
version: '3.2'
services:
  zookeeper:
    image: confluentinc/cp-zookeeper:latest
    ports:
      - "2181:2181"
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000
    extra_hosts:
      - "moby:127.0.0.1"

  kafka1:
    build:
      context: .
      dockerfile: Dockerfile.kafka
      args:
        broker_id: 1
        zookeeper_connect: zookeeper:2181
        listener_host: kafka1
        listener_port: 9092
    ports:
      - "9092:9092"
    depends_on:
      - zookeeper
    extra_hosts:
      - "moby:127.0.0.1"

  kafka2:
    build:
      context: .
      dockerfile: Dockerfile.kafka
      args:
        broker_id: 2
        zookeeper_connect: zookeeper:2181
        listener_host: kafka2
        listener_port: 9093
    ports:
      - "9093:9092"
    depends_on:
      - zookeeper
    extra_hosts:
      - "moby:127.0.0.1"

  kafka3:
    build:
      context: .
      dockerfile: Dockerfile.kafka
      args:
        broker_id: 3
        zookeeper_connect: zookeeper:2181
        listener_host: kafka3
        listener_port: 9094
    ports:
      - "9094:9092"
    depends_on:
      - zookeeper
    extra_hosts:
      - "moby:127.0.0.1"