Local Dev docker-compose with PostgreSQL and Redis

name: myapp-dev

services:
  app:
    build: .
    ports:
      - "3000:3000"
    env_file: .env.local
    depends_on:
      db:
        condition: service_healthy
      cache:
        condition: service_started
    volumes:
      - .:/app
      - /app/node_modules   # anonymous volume keeps container modules

  db:
    image: postgres:16-alpine
    restart: unless-stopped
    environment:
      POSTGRES_DB:       ${POSTGRES_DB:-appdb}
      POSTGRES_USER:     ${POSTGRES_USER:-app}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-secret}
    ports:
      - "5432:5432"
    volumes:
      - pgdata:/var/lib/postgresql/data
      - ./data:/docker-entrypoint-initdb.d   # auto-runs *.sql on first boot
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U $${POSTGRES_USER}"]
      interval: 5s
      timeout: 5s
      retries: 10

  cache:
    image: redis:7-alpine
    restart: unless-stopped
    command: redis-server --save 60 1 --loglevel warning
    ports:
      - "6379:6379"
    volumes:
      - redisdata:/data

  adminer:
    image: adminer
    restart: unless-stopped
    ports:
      - "8080:8080"
    profiles: [tools]   # start only with: docker compose --profile tools up

volumes:
  pgdata:
  redisdata:

# Start everything
docker compose up -d

# Start with Adminer UI
docker compose --profile tools up -d

# Tail app logs
docker compose logs -f app