# Astro SSR Standalone Server

An Astro-based web application configured for server-side rendering (SSR) with standalone Node.js deployment.

## Quick Start

### Development

```bash
npm install
npm run dev
```

The development server will start at `http://localhost:4321`

### Production

```bash
npm run build
npm start
```

The production server will start at `http://0.0.0.0:10000`

---

## Deployment

This application is configured for standalone Node.js deployment with SSR enabled.

> **📋 Domain Migration Documentation**
> - **Quick Deploy**: [`QUICK-DEPLOY.md`](./QUICK-DEPLOY.md) - Fast deployment reference for DevOps
> - **Full Checklist**: [`DOMAIN-MIGRATION-CHECKLIST.md`](./DOMAIN-MIGRATION-CHECKLIST.md) - Complete deployment checklist
> - **Migration Summary**: [`MIGRATION-SUMMARY.md`](./MIGRATION-SUMMARY.md) - Executive summary of changes
> - **Deployment Guide**: [`DEPLOYMENT.md`](./DEPLOYMENT.md) - General deployment instructions

### Build Process

Build the application for production:

```bash
npm run build
```

This command:
- Compiles the Astro application with SSR enabled
- Generates a standalone Node.js server in the `dist/` directory
- Creates the server entry point at `dist/entry.mjs`
- Optimizes assets for production

### Running the Server

Start the standalone Node server:

```bash
npm start
```

The server will:
- Bind to `0.0.0.0` (accessible from all network interfaces)
- Listen on port `10000` by default
- Serve server-side rendered pages with full SSR functionality

### Environment Configuration

Environment variables can be configured using a `.env` file. See `.env.example` for available options:

| Variable | Description | Default |
|----------|-------------|---------|
| **HOST** | Server bind address. Use `0.0.0.0` for deployment (all interfaces) or `localhost` for local dev | `0.0.0.0` |
| **PORT** | Server port. Can be overridden by platform (e.g., Heroku, Railway) | `10000` |
| **NODE_ENV** | Runtime environment (`production`, `development`, `test`) | `production` |

#### Example Configuration

**For production deployment:**
```env
HOST=0.0.0.0
PORT=10000
NODE_ENV=production
```

**For local development:**
```env
HOST=localhost
PORT=3000
NODE_ENV=development
```

### Available Scripts

| Command | Description |
|---------|-------------|
| `npm run dev` | Start development server with hot reload |
| `npm run build` | Build for production with SSR |
| `npm start` | Run production server |
| `npm run preview` | Preview production build locally |
| `npm run clean` | Remove build artifacts |
| `npm run prod` | Full production build and start |

---

## Architecture

### SSR Configuration

The application uses:
- **Output mode**: `server` (full SSR)
- **Adapter**: `@astro/node` in standalone mode
- **Server runtime**: Node.js standalone server

This configuration ensures:
- Server-side rendering for all pages
- SEO optimization with pre-rendered HTML
- Dynamic content support
- No external dependencies for deployment

### Server Entry Point

The standalone server is located at `server.mjs` and configures:
- Host binding to `0.0.0.0` for deployment accessibility
- Port `10000` with environment variable override support
- Production-ready server setup

---

## Deployment Platforms

### Generic Node.js Platforms

Compatible with any platform that supports Node.js:

1. **Build the application:**
   ```bash
   npm run build
   ```

2. **Set environment variables** (if needed):
   ```bash
   export HOST=0.0.0.0
   export PORT=10000
   export NODE_ENV=production
   ```

3. **Start the server:**
   ```bash
   npm start
   ```

### Platform-Specific Notes

**Railway / Render / Fly.io:**
- These platforms automatically set the `PORT` environment variable
- The server will use the platform's provided port
- Ensure `npm start` is set as the start command

**Heroku:**
- Uses the `PORT` environment variable automatically
- Add `node_modules` to `.gitignore` (already configured)
- Ensure `package.json` has `"engines"` field for Node version

**Docker:**
```dockerfile
FROM node:18-alpine
WORKDIR /app
COPY package*.json ./
RUN npm ci --production
COPY . .
RUN npm run build
EXPOSE 10000
CMD ["npm", "start"]
```

---

## Project Structure

```
.
├── src/
│   ├── pages/          # Astro pages (SSR routes)
│   ├── layouts/        # Page layouts
│   └── components/     # Reusable components
├── public/             # Static assets
├── dist/               # Production build output
│   └── entry.mjs       # Server entry point
├── server.mjs          # Standalone server configuration
├── astro.config.mjs    # Astro configuration
├── .env.example        # Environment variables template
└── package.json        # Project dependencies and scripts
```

---

## Features

- **Server-Side Rendering (SSR)**: Full SSR support for dynamic content and SEO
- **Standalone Deployment**: Self-contained Node.js server with no external dependencies
- **Environment Configuration**: Flexible configuration via environment variables
- **Production-Ready**: Optimized build with asset optimization and performance tuning
- **SEO Optimized**: Meta tags, Open Graph, and structured data support
- **Performance Optimized**: Image optimization with WebP, lazy loading, and asset optimization

---

## Troubleshooting

### Port Already in Use

If you see `EADDRINUSE` error:

```bash
# Windows
netstat -ano | findstr :10000
taskkill /PID <PID> /F

# Linux/Mac
lsof -ti:10000 | xargs kill -9
```

### Server Not Accessible

Ensure the server is bound to `0.0.0.0` (not `localhost`) for external access:

```env
HOST=0.0.0.0
```

### Build Failures

Clear the build cache and rebuild:

```bash
npm run clean
npm run build
```

---

## License

MIT