docker-compose.yml

version: '3.8'

services:
  # 0. THE MESSAGE BROKER
  broker:
    image: eclipse-mosquitto:latest
    container_name: velocity_broker
    ports:
    - "1883:1883"
    volumes:
    - ./mosquitto.conf:/mosquitto/config/mosquitto.conf

  # 1. THE DATABASE
  db:
    image: postgis/postgis
    container_name: velocity_db
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: velocity_pass
      POSTGRES_DB: velocity
    ports:
      - "5432:5432"

  # 2. THE API (Control Tower)
  backend:
    build: .
    container_name: velocity_backend
    ports:
      - "8000:8000"
    environment:
      # Notice we use "db:5432" here instead of localhost!
      - DATABASE_URL=postgresql://postgres:velocity_pass@db:5432/velocity
      - MQTT_BROKER=broker # Tells python to look for the 'broker' content
      - GEMINI_API_KEY=${GEMINI_API_KEY}
    depends_on:
      - db
      - broker

  # 3. THE TRUCK SIMULATOR
  simulator:
    build: .
    container_name: velocity_truck
    command: python truck_simulator.py
    environment:
      # Notice we use "backend:8000" here instead of 127.0.0.1!
      - MQTT_BROKER=broker  # Tells Python to look for the 'broker' container
    depends_on:
      - broker

  # 4. THE FRONTEND (Dashboard)
  frontend:
    image: node:20-alpine
    container_name: velocity_frontend
    working_dir: /app
    volumes:
      - ./velocity_frontend:/app
    ports:
      - "5173:5173"
    # This installs the node modules and starts Vite, exposing it to the browser
    command: sh -c "npm install && npm run dev -- --host 0.0.0.0"
    depends_on:
      - backend