docker-compose.yml

version: '3.8'

services:
  app:
    build:
      context: .
      target: development
    ports:
      - "3000:3000"
    volumes:
      # Bind mount host files for hot-reloading (development watch mode)
      - .:/usr/src/app
      # Anonymous volume prevents host's node_modules from overriding container's
      - /usr/src/app/node_modules
    # Load all environment variables from local .env if it exists
    env_file:
      - .env
    environment:
      # Override DATABASE_URL to target the postgres container inside the docker network
      - DATABASE_URL=postgresql://postgres:postgres@db:5432/mergefi
      - PORT=3000
      - NODE_ENV=development
    depends_on:
      db:
        condition: service_healthy

  db:
    image: postgres:16-alpine
    restart: always
    environment:
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=postgres
      - POSTGRES_DB=mergefi
    ports:
      - "5432:5432"
    volumes:
      - postgres_data:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres -d mergefi"]
      interval: 5s
      timeout: 5s
      retries: 5

volumes:
  postgres_data: