docker-compose.yml

services:
  zookeeper:
    image: zookeeper:3.6.2
    container_name: zookeeper
    ports:
      - "2181:2181"

  kafka:
    image: bitnami/kafka:latest
    container_name: kafka
    environment:
      KAFKA_ADVERTISED_HOST_NAME: kafka
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_ADVERTISED_LISTENERS: 'PLAINTEXT://kafka:29092, PLAINTEXT_HOST://localhost:9092'
      KAFKA_LISTENERS: 'PLAINTEXT://kafka:29092, PLAINTEXT_HOST://0.0.0.0:9092'
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: 'PLAINTEXT:PLAINTEXT, PLAINTEXT_HOST:PLAINTEXT'
      KAFKA_INTER_BROKER_LISTENER_NAME: 'PLAINTEXT'
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
    ports:
      - "9092:9092"
    depends_on:
      - zookeeper

  kafka-ui:
    container_name: kafka-ui
    image: provectuslabs/kafka-ui:latest
    ports:
      - "9095:8080"
    environment:
      KAFKA_CLUSTERS_0_NAME: local
      KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS: kafka:29092
      KAFKA_CLUSTERS_0_ZOOKEEPER: zookeeper:2181
    depends_on:
      - kafka
      - zookeeper

  backend:
    build:
      context: ./backend
      dockerfile: Dockerfile
    container_name: transitPulse-backend
    ports:
      - "8081:8081"  # backend service runs on port 8080 internally
    environment:
      SPRING_PROFILES_ACTIVE: dev
    depends_on:
      - kafka