docker-compose.yml

version: "3.4"
services:
  zookeeper:
    image: bitnami/zookeeper:latest
    ports:
      - 2181:2181
    environment:
      - ALLOW_ANONYMOUS_LOGIN=yes
    logging:
      driver: none

  kafka:
    container_name: kafka
    image: &kafka-image bitnami/kafka:latest
    ports:
      - 9092:9092
    environment:
      - BITNAMI_DEBUG=true
      - KAFKA_CFG_ZOOKEEPER_CONNECT=zookeeper:2181
      - KAFKA_CFG_NODE_ID=0
      - KAFKA_CFG_LISTENERS=PLAINTEXT://:9092,CONTROLLER://:9093
      - KAFKA_CFG_LISTENER_SECURITY_PROTOCOL_MAP=CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT
    logging:
      driver: none
    depends_on:
      - zookeeper
    healthcheck:
      test: ["CMD", "kafka-topics.sh", "--bootstrap-server=localhost:9092", "--list"]
      start_period: 15s
      interval: 10s
      retries: 5

  init-kafka:
    image: *kafka-image
    working_dir: /opt/bitnami/kafka/bin
    environment:
      - BITNAMI_DEBUG=true
    depends_on:
      kafka:
        condition: service_healthy
    entrypoint: [ '/bin/sh', '-c' ]
    command: |
      "
      echo 'Creating kafka topics'
      kafka-topics.sh --bootstrap-server kafka:9092 --create --if-not-exists --topic san_exporter_test --replication-factor 1 --partitions 1
      echo 'Successfully created the following topics:'
      kafka-topics.sh --bootstrap-server kafka:9092 --list
      "
  exporter:
    build:
      context: .
      dockerfile: Dockerfile
      args:
        NODE_ENV: development
    depends_on:
      - kafka
      - init-kafka
    environment:
      KAFKA_URL: kafka:9092
      ZOOKEEPER_URL: zookeeper:2181
      KAFKA_TOPIC: san_exporter_test
    ports:
      # port for checking health.
      - "127.0.0.1:3000:3000"
    entrypoint: "/bin/sh"
    command: ["-c", "docker/wait_for_services.sh && node examples/send_dates.js && node examples/send_dates_transaction.js"]