server {
    listen 80;
    server_name _;
    root /usr/share/nginx/html;
    index index.html;

    # compressão (a página tem imagens embutidas em base64)
    gzip on;
    gzip_types text/html text/css application/javascript image/svg+xml;
    gzip_min_length 1024;

    add_header X-Content-Type-Options "nosniff" always;
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;

    location / {
        try_files $uri $uri/ /index.html;
    }

    location = /health {
        access_log off;
        return 200 "ok\n";
        add_header Content-Type text/plain;
    }
}