nginx.conf

server {
    listen 8080;
    server_name _;

    root /usr/share/nginx/html;
    index index.html;

    # Gzip Compression
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_types
        text/plain
        text/css
        text/xml
        text/javascript
        application/javascript
        application/x-javascript
        application/json
        application/xml
        application/rss+xml
        image/svg+xml;

    # Security Headers
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;

    # Health check endpoint for Kubernetes liveness/readiness probes
    location = /healthz {
        access_log off;
        default_type text/plain;
        return 200 'OK';
    }

    # Static assets cache control (Vite generates hashed asset names)
    location /assets/ {
        expires 1y;
        add_header Cache-Control "public, max-age=31536000, immutable";
        try_files $uri =404;
    }

    # SPA routing fallback: always serve index.html for client-side navigation
    location / {
        add_header Cache-Control "no-cache, no-store, must-revalidate";
        try_files $uri $uri/ /index.html;
    }
}