docker-compose.yml

version: '3.8'

services:
  db:
    image: postgres:15-alpine
    environment:
      POSTGRES_USER: ${DB_USER}
      POSTGRES_PASSWORD: ${DB_PASSWORD}
      POSTGRES_DB: todo_db
    volumes:
      - postgres_data:/var/lib/postgresql/data
    networks:
      - app_network

  redis:
    image: redis:7-alpine
    networks:
      - app_network

  backend:
    build: ./backend
    ports:
      - "5000:5000"
    environment:
      DB_USER: ${DB_USER}
      DB_PASSWORD: ${DB_PASSWORD}
      DB_HOST: db        # Critical for connection
      REDIS_HOST: redis  # Critical for connection
    depends_on:
      - db
      - redis
    networks:
      - app_network

  frontend:
    build: ./frontend
    ports:
      - "3000:3000"
    environment:
      - REACT_APP_API_URL=http://localhost:5000
    depends_on:
      - backend
    networks:
      - app_network

networks:
  app_network:
    driver: bridge

volumes:
  postgres_data: