map $uri $policy_cache_control {
    default "no-cache";
    ~^/standards/.+/revisions/ "public, max-age=31536000, immutable";
}

server {
    listen 8080 default_server;
    listen [::]:8080 default_server;
    server_name _;
    server_tokens off;
    absolute_redirect off;

    root /usr/share/nginx/html;
    index index.html;
    charset utf-8;
    etag on;

    add_header Cache-Control $policy_cache_control always;
    add_header Content-Security-Policy "default-src 'none'; style-src 'unsafe-inline'; img-src 'self' data:; font-src 'self'; base-uri 'none'; form-action 'none'; frame-ancestors 'none'" always;
    add_header Permissions-Policy "camera=(), geolocation=(), microphone=()" always;
    add_header Referrer-Policy "no-referrer" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-Frame-Options "DENY" always;

    location = /healthz {
        access_log off;
        default_type text/plain;
        return 200 "ok\n";
    }

    location = /tenancy-posture.html {
        return 308 /standards/tenancy-posture/v0.1/index.html;
    }

    location / {
        try_files $uri $uri/ $uri/index.html =404;
    }
}