# 🚀 Deployment Guide

This guide covers different deployment options for the NGINX Proxy Manager Backend.

## 🐳 Docker Deployment (Recommended)

### Prerequisites
- Docker and Docker Compose installed
- Ports 80, 443, and optionally 3000 available
- Domain(s) pointing to your server

### Quick Start

1. **Clone and Configure**
   ```bash
   git clone <repository-url>
   cd reverse-proxy
   cp .env.example .env
   # Edit .env with your configuration
   ```

2. **Update Docker Compose**
   Edit `docker-compose.yml` and change:
   - `JWT_SECRET` to a secure random string
   - `ADMIN_PASSWORD` to a secure password
   - `CORS_ORIGIN` to your frontend domain

3. **Deploy**
   ```bash
   docker-compose up -d
   ```

4. **Check Status**
   ```bash
   docker-compose ps
   docker-compose logs -f nginx-proxy-manager
   ```

5. **Access API**
   - Health check: `http://your-server:3000/api/health`
   - Login: `POST http://your-server:3000/api/auth/login`

### Production Configuration

For production, edit `docker-compose.yml`:

```yaml
# Remove API port exposure for security
ports:
  - "80:80"
  - "443:443"
  # - "3000:3000"  # Remove this line

# Use environment file
env_file:
  - .env.production

# Add resource limits
deploy:
  resources:
    limits:
      memory: 512M
      cpus: '0.5'
```

## 🖥️ Native Installation

### Prerequisites
- Ubuntu 20.04+ or similar Linux distribution
- Node.js with Bun runtime
- NGINX installed and running
- acme.sh or certbot for SSL certificates

### Installation Steps

1. **Install Dependencies**
   ```bash
   # Install Bun
   curl -fsSL https://bun.sh/install | bash
   
   # Install NGINX
   sudo apt update
   sudo apt install nginx
   
   # Install acme.sh
   curl https://get.acme.sh | sh -s email=your-email@domain.com
   ```

2. **Setup Application**
   ```bash
   git clone <repository-url>
   cd reverse-proxy
   bun install
   cp .env.example .env
   # Edit .env with your configuration
   ```

3. **Initialize Database**
   ```bash
   bun run db:init
   ```

4. **Create Systemd Service**
   ```bash
   sudo tee /etc/systemd/system/nginx-proxy-manager.service > /dev/null <<EOF
   [Unit]
   Description=NGINX Proxy Manager API
   After=network.target

   [Service]
   Type=simple
   User=root
   WorkingDirectory=/path/to/reverse-proxy
   ExecStart=/root/.bun/bin/bun index.ts
   Restart=always
   RestartSec=5
   Environment=NODE_ENV=production

   [Install]
   WantedBy=multi-user.target
   EOF
   ```

5. **Start Service**
   ```bash
   sudo systemctl daemon-reload
   sudo systemctl enable nginx-proxy-manager
   sudo systemctl start nginx-proxy-manager
   ```

## 🔒 Security Hardening

### 1. Firewall Configuration
```bash
# Allow only necessary ports
sudo ufw allow 22/tcp    # SSH
sudo ufw allow 80/tcp    # HTTP
sudo ufw allow 443/tcp   # HTTPS
sudo ufw enable
```

### 2. SSL/TLS Configuration
- Use strong SSL ciphers (already configured)
- Enable HTTP/2 (configured in NGINX)
- Use HSTS headers for enhanced security

### 3. Rate Limiting
- API requests: 10 req/sec (configured)
- Login attempts: 1 req/sec (configured)
- Customize in `docker/nginx.conf` if needed

### 4. Access Control
- Change default admin credentials immediately
- Use strong JWT secrets
- Consider IP whitelisting for admin access

## 📊 Monitoring and Maintenance

### 1. Log Monitoring
```bash
# Application logs
docker-compose logs -f nginx-proxy-manager

# NGINX logs
docker-compose exec nginx-proxy-manager tail -f /var/log/nginx/access.log
docker-compose exec nginx-proxy-manager tail -f /var/log/nginx/error.log
```

### 2. Health Checks
```bash
# API health
curl http://localhost:3000/api/health

# NGINX status
curl -I http://your-domain.com
```

### 3. Database Backup
```bash
# Manual backup
docker-compose exec nginx-proxy-manager cp /app/data/proxy_manager.db /app/backups/

# Automated backup is included in docker-compose.yml
```

### 4. Certificate Monitoring
- Certificates are automatically renewed 30 days before expiry
- Check certificate status via API: `/api/certificates/expiring/check`
- Force renewal: `/api/certificates/expiring/renew`

## 🔄 Updates and Maintenance

### 1. Update Application
```bash
# Pull latest changes
git pull origin main

# Rebuild and restart
docker-compose down
docker-compose build --no-cache
docker-compose up -d
```

### 2. Database Migration
```bash
# Backup database before updates
docker-compose exec nginx-proxy-manager cp /app/data/proxy_manager.db /app/backups/backup-$(date +%Y%m%d).db

# Run initialization (handles schema updates)
docker-compose exec nginx-proxy-manager bun src/database/init.ts
```

## 🐛 Troubleshooting

### Common Issues

1. **Port Already in Use**
   ```bash
   # Check what's using the port
   sudo netstat -tulpn | grep :80
   sudo netstat -tulpn | grep :443
   
   # Stop conflicting services
   sudo systemctl stop apache2  # if Apache is running
   ```

2. **Permission Denied for NGINX Config**
   ```bash
   # Fix permissions
   sudo chown -R root:root /etc/nginx/conf.d/
   sudo chmod 644 /etc/nginx/conf.d/*.conf
   ```

3. **SSL Certificate Issues**
   ```bash
   # Check acme.sh logs
   docker-compose exec nginx-proxy-manager cat /root/.acme.sh/acme.sh.log
   
   # Manual certificate request
   docker-compose exec nginx-proxy-manager /root/.acme.sh/acme.sh --issue -d yourdomain.com --standalone
   ```

4. **Database Locked**
   ```bash
   # Stop application
   docker-compose stop nginx-proxy-manager
   
   # Remove lock file
   docker-compose exec nginx-proxy-manager rm -f /app/data/proxy_manager.db-wal /app/data/proxy_manager.db-shm
   
   # Restart
   docker-compose start nginx-proxy-manager
   ```

### Log Analysis
```bash
# Search for errors
docker-compose logs nginx-proxy-manager | grep -i error

# Monitor in real-time
docker-compose logs -f --tail=100 nginx-proxy-manager
```

## 📞 Support

1. Check application logs first
2. Verify NGINX configuration with `nginx -t`
3. Test API endpoints manually
4. Check certificate expiry dates
5. Review firewall and DNS settings

For persistent issues, create a detailed bug report with:
- Error messages and logs
- Configuration details
- Steps to reproduce
- Environment information