docker-compose.yml

version: '3'
services:
  tests:
    build:
      context: .
      dockerfile: Dockerfile.test
    command: ["bash", "./scripts/run_tests.sh"]
    environment: 
      - KAFKA_BOOTSTRAP_SERVER=broker:29092
    depends_on:
      - kafka

  zookeeper:
    image: confluentinc/cp-zookeeper
    hostname: zookeeper
    ports:
      - 2181:2181
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000

  kafka:
    image: confluentinc/cp-kafka
    hostname: broker
    depends_on:
      - zookeeper
    ports:
      # Exposes 9092 for external connections to the broker
      # Use kafka:29092 for connections internal on the docker network
      # See https://rmoff.net/2018/08/02/kafka-listeners-explained/ for details
      - 9092:9092
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://broker:29092,PLAINTEXT_HOST://localhost:9092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: PLAINTEXT
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1