version: '2'
services:
  zookeeper:
    image: "confluentinc/cp-zookeeper:4.1.0"
    ports:
     - "2181:2181"
    expose:
     - "2181"
    environment:
     - ZOOKEEPER_CLIENT_PORT=2181
  kafka:
    image: "confluentinc/cp-kafka:4.1.0"
    hostname: kafka
    links:
     - zookeeper
    ports:
     - "9092:9092"
    expose:
     - "9092"
    environment:
     - KAFKA_ZOOKEEPER_CONNECT=zookeeper:2181
     - KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://zookeeper:9092
     - KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR=1