generateDockerReadme static method

String generateDockerReadme(String projectName)

Implementation

static String generateDockerReadme(String projectName) {
  return '''
# Docker Setup for $projectName

This project includes Docker configuration for easy deployment and development.

## 🚀 Quick Start

### Prerequisites
- Docker (v20.10+)
- Docker Compose (v2.0+)

### Production Deployment

1. **Build the Docker image:**
 \`\`\`bash
 make build
 # OR
 docker-compose build
 \`\`\`

2. **Run the application:**
 \`\`\`bash
 make run
 # OR
 docker-compose up -d
 \`\`\`

3. **Access the app:**
 - Web App: http://localhost
 - pgAdmin (if enabled): http://localhost:5050

### Development Mode

For hot-reload during development:

\`\`\`bash
make dev
# OR
docker-compose --profile dev up dev
\`\`\`

Access at: http://localhost:8080

## 📋 Available Commands

| Command | Description |
|---------|-------------|
| \`make build\` | Build Docker image |
| \`make run\` | Start production containers |
| \`make dev\` | Start development server with hot-reload |
| \`make stop\` | Stop all containers |
| \`make clean\` | Remove containers and volumes |
| \`make logs\` | View container logs |
| \`make restart\` | Restart all containers |
| \`make shell\` | Open shell in web container |
| \`make db-shell\` | Open PostgreSQL shell |

## 🏗️ Architecture

### Production Stack
- **Web**: Flutter web app served by Nginx
- **PostgreSQL**: Database (optional)
- **Redis**: Caching layer (optional)
- **pgAdmin**: Database management UI (optional)

### File Structure
\`\`\`
.
├── Dockerfile              # Multi-stage build for Flutter web
├── docker-compose.yml      # Production services
├── nginx.conf             # Nginx configuration
├── .dockerignore          # Files to exclude from Docker build
├── Makefile               # Convenience commands
└── DOCKER.md              # This file
\`\`\`

## 🔧 Configuration

### Environment Variables

Create a \`.env\` file in the project root:

\`\`\`env
# Database
POSTGRES_DB=${projectName}_db
POSTGRES_USER=postgres
POSTGRES_PASSWORD=your_secure_password

# Redis
REDIS_PASSWORD=your_redis_password

# App
NODE_ENV=production
\`\`\`

### Ports

Default port mappings:
- Web App: 80
- PostgreSQL: 5432
- Redis: 6379
- pgAdmin: 5050 (dev profile)
- Dev Server: 8080 (dev profile)

To change ports, edit \`docker-compose.yml\`.

## 🛠️ Troubleshooting

### Container won't start
\`\`\`bash
# Check logs
make logs

# Restart containers
make restart
\`\`\`

### Clean rebuild
\`\`\`bash
# Remove everything and rebuild
make clean
make build
make run
\`\`\`

### Database connection issues
\`\`\`bash
# Check if PostgreSQL is running
docker ps

# Access database shell
make db-shell
\`\`\`

### Permission issues
\`\`\`bash
# Fix volume permissions
sudo chown -R \$USER:\$USER .
\`\`\`

## 📦 Building for Different Platforms

### Web Only (Current Setup)
Already configured! Just use \`make build\`.

### Android/iOS
For mobile deployments, use Flutter's native build tools:
\`\`\`bash
flutter build apk --release        # Android
flutter build ios --release         # iOS
flutter build appbundle --release   # Android App Bundle
\`\`\`

## 🔐 Security Notes

1. **Change default passwords** in \`.env\` and \`docker-compose.yml\`
2. **Use secrets** for production (Docker Swarm or Kubernetes)
3. **Enable HTTPS** with Let's Encrypt or similar
4. **Restrict database access** to internal network only
5. **Regular updates** - keep base images updated

## 🚀 Deployment

### Deploy to Cloud

**Docker Hub:**
\`\`\`bash
docker tag ${projectName}_web your-username/${projectName}:latest
docker push your-username/${projectName}:latest
\`\`\`

**AWS ECS, Google Cloud Run, or Azure:**
Follow their respective documentation for container deployment.

## 📝 Notes

- The production build uses Nginx for optimal performance
- Static assets are cached for 1 year
- Gzip compression is enabled for better performance
- Development mode mounts the source code for hot-reload
- Database and Redis data persist in Docker volumes

## 🤝 Contributing

When adding new services, update:
1. \`docker-compose.yml\`
2. This README
3. Network configuration if needed

---

For more information, visit the [Flutter Docker documentation](https://flutter.dev/docs/deployment/web).
''';
}