nginx-aio.conf

server {
    listen 80;
    server_name localhost;

    # Root directory for static files
    root /usr/share/nginx/html;
    index index.html;

    # Gzip compression for better performance
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_proxied any;
    gzip_types text/plain text/css text/xml text/javascript application/javascript application/json application/xml;

    # Security headers
    add_header Content-Security-Policy "default-src 'self'; base-uri 'self'; connect-src 'self'; font-src 'self' data:; form-action 'self'; frame-ancestors 'none'; img-src 'self' data: https:; object-src 'none'; script-src 'self'; style-src 'self'" always;
    add_header Permissions-Policy "camera=(), geolocation=(), microphone=()" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
    add_header X-Frame-Options "DENY" always;
    add_header X-Content-Type-Options "nosniff" always;

    location /api/ {
        # Strip /api prefix and proxy to backend
        rewrite ^/api/(.*)$ /$1 break;

        proxy_pass http://127.0.0.1:8000;
        proxy_http_version 1.1;

        # Headers for proper proxying
        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;

        # Timeouts for long-running operations
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;

        # Disable buffering for streaming responses
        proxy_buffering off;
    }

    # Cache static assets
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
        try_files $uri =404;
    }

    # SPA fallback - route all other requests to index.html
    # This is crucial for React Router to handle client-side routing
    location / {
        try_files $uri $uri/ /index.html;
    }

    # Health check endpoint
    location /health {
        access_log off;
        return 200 "healthy\n";
        add_header Content-Type text/plain;
    }
}