version: '3.5'

services:
  # Handle the coordination between the kafka images
  zookeeper:
    image: bitnami/zookeeper
    ports:
      - "2181:2181"
    environment:
      - ALLOW_ANONYMOUS_LOGIN=yes
    volumes:
      - "zookeeper_data:/bitnami"
    networks:
      - kafka

  # The event system
  kafka:
    image: bitnami/kafka
    ports:
      - "9092:9092"
    environment:
      - KAFKA_CFG_ZOOKEEPER_CONNECT=zookeeper:2181
    volumes:
      - "kafka_data:/bitnami"
    networks:
      - kafka
    depends_on:
      - zookeeper

  # Our producer
  producer:
    build:
      context: ./applications/producer
      dockerfile: ./src/main/docker/Dockerfile.${QUARKUS_MODE:-jvm}
    environment:
      KAFKA_BOOTSTRAP_SERVERS: kafka:9092
      TEMPERATURE_TOPIC: "temperature-celsius"
      TEMPERATURE_LOCATION: 49.9, 2.3
    networks:
      - kafka
    depends_on:
      - kafka

  # Our consumer
  consumer:
    build:
      context: ./applications/consumer
      dockerfile: ./src/main/docker/Dockerfile.${QUARKUS_MODE:-jvm}
    ports:
      - "8080:8080"
    environment:
      KAFKA_BOOTSTRAP_SERVERS: kafka:9092
      TEMPERATURE_TOPIC: "temperature-fahrenheit"
    healthcheck:
      test: curl --fail http://localhost:8080/v1/ping
      start_period: 10s
      timeout: 5s
      interval: 60s
      retries: 3
    networks:
      - kafka
    depends_on:
      - kafka

  # Our converter
  converter:
    build:
      context: ./applications/converter
      dockerfile: ./src/main/docker/Dockerfile.${QUARKUS_MODE:-jvm}
    environment:
      KAFKA_BOOTSTRAP_SERVERS: kafka:9092
      TEMPERATURE_CELSIUS_TOPIC: "temperature-celsius"
      TEMPERATURE_FAHRENHEIT_TOPIC: "temperature-fahrenheit"
    networks:
      - kafka
    depends_on:
      - kafka
      - producer
      - consumer

networks:
  # the Kafka network
  kafka:
    name: kafka

volumes:
  # the Zookeeper permanent data
  zookeeper_data:
    driver: local
  # the Kafka permanent data
  kafka_data:
    driver: local