version: '2'
services:
  #
  # Single-node zookeeper service
  #
  zookeeper:
    image: "${REGISTRY}wurstmeister/zookeeper:${ZK_TAG:-latest}"
    ports:
    - 2181:2181
    environment:
      SERVICE_2181_NAME: "zookeeper"
  #
  # Single-node kafka service
  #
  kafka:
    image: "${REGISTRY}wurstmeister/kafka:${KAFKA_TAG:-latest}"
    ports:
     - 9092:9092
    environment:
      KAFKA_ADVERTISED_HOST_NAME: ${DOCKER_HOST_IP}
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: 'true'
      SERVICE_9092_NAME: "kafka"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock