docker-compose.yml

services:
  hotel-reservation-app:
    build: ./hotel-reservation-app
    ports:
      - "3000:3000"
    environment:
      PORT: 3000
      DB_HOST: postgres
      DB_PORT: 5432
      DB_USER: postgres
      DB_PASSWORD: password
      DB_NAME: hotel
      KAFKA_HOST: kafka
      KAFKA_PORT: 9092
    depends_on:
      - kafka
      - postgres

  postgres:
    image: postgres:latest
    restart: always
    ports:
      - "5432:5432"
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: password
      POSTGRES_DB: hotel
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres"]
      interval: 10s
      timeout: 5s
      retries: 5

  kafka:
    image: wurstmeister/kafka:latest
    ports:
      - "9092:9092"
    environment:
      KAFKA_LISTENERS: PLAINTEXT://0.0.0.0:9092
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka:9092
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_CREATE_TOPICS: "reservation-events:1:1"
    depends_on:
      - zookeeper

  kafka-ui:
    container_name: kafka-ui
    image: provectuslabs/kafka-ui:latest
    ports:
      - 8079:8080
    environment:
      DYNAMIC_CONFIG_ENABLED: "true"
    depends_on:
      - kafka

  zookeeper:
    image: wurstmeister/zookeeper:latest
    ports:
      - "2181:2181"

  spark-master:
    image: bitnami/spark:latest
    ports:
      - "7077:7077"
      - "8080:8080"
    environment:
      SPARK_MODE: master
      SPARK_MASTER_HOST: spark-master
    depends_on:
      - kafka

  spark-worker-1:
    image: bitnami/spark:latest
    ports:
      - "8081:8081"
    environment:
      SPARK_MODE: worker
      SPARK_MASTER_URL: spark://spark-master:7077
    depends_on:
      - spark-master

  spark-worker-2:
    image: bitnami/spark:latest
    ports:
      - "8082:8081"
    environment:
      SPARK_MODE: worker
      SPARK_MASTER_URL: spark://spark-master:7077
    depends_on:
      - spark-master

  spark-analytics:
    build: ./spark-analytics
    environment:
      SPARK_MASTER_URL: spark://spark-master:7077
    ports:
      - "4040:4040"
    depends_on:
      - kafka
      - spark-master
      - namenode

  namenode:
    image: bde2020/hadoop-namenode:2.0.0-hadoop3.2.1-java8
    environment:
      CLUSTER_NAME: hadoop
      CORE_CONF_fs_defaultFS: hdfs://namenode:8020
      CORE_CONF_hadoop_http_staticuser_user: root
      CORE_CONF_hdfs_permissions_enabled: false
    ports:
      - "8020:8020"
      - "9870:9870"
    volumes:
      - namenode-data:/hadoop/dfs/name

  datanode:
    image: bde2020/hadoop-datanode:2.0.0-hadoop3.2.1-java8
    environment:
      CORE_CONF_fs_defaultFS: hdfs://namenode:8020
      CORE_CONF_hadoop_http_staticuser_user: root
    ports:
      - "9864:9864"
    volumes:
      - datanode-data:/hadoop/dfs/data
    depends_on:
      - namenode

volumes:
  namenode-data:
  datanode-data: