nginx.conf

# Nginx configuration template for Safe YouTube Viewer
# This is a TEMPLATE for deployment - not used in local development
#
# Installation:
# 1. Copy to /etc/nginx/sites-available/youtube-viewer
# 2. Update server_name with your domain
# 3. Update SSL certificate paths after running certbot
# 4. Create symlink: ln -s /etc/nginx/sites-available/youtube-viewer /etc/nginx/sites-enabled/
# 5. Test: nginx -t
# 6. Reload: systemctl reload nginx

# Redirect HTTP to HTTPS
server {
    listen 80;
    listen [::]:80;
    server_name your-domain.com;

    # Allow Let's Encrypt ACME challenge
    location /.well-known/acme-challenge/ {
        root /var/www/html;
    }

    # Redirect all other traffic to HTTPS
    location / {
        return 301 https://$server_name$request_uri;
    }
}

# Main HTTPS server
server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name your-domain.com;

    # SSL Configuration (Let's Encrypt)
    # Run: certbot --nginx -d your-domain.com
    ssl_certificate /etc/letsencrypt/live/your-domain.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/your-domain.com/privkey.pem;
    ssl_trusted_certificate /etc/letsencrypt/live/your-domain.com/chain.pem;

    # Modern SSL configuration
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256';
    ssl_prefer_server_ciphers off;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 10m;

    # Security headers
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;

    # Static files
    location /static {
        alias /opt/youtube-viewer/app/static;
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    # API and application routes - proxy to FastAPI
    location / {
        proxy_pass http://127.0.0.1:8000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;

        # WebSocket support (for future use)
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        # Timeouts
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;
    }

    # Health check endpoint
    location /health {
        proxy_pass http://127.0.0.1:8000/health;
        access_log off;
    }
}