nginx.conf

upstream dohloop {
    zone dohloop 64k;
    server 127.0.0.1:8080;
}

server {
    server_name _;

    proxy_cache_methods GET POST;

    location /dns-query {
        proxy_pass http://dohloop;
        proxy_http_version 1.0;
    }

    location / {
      return 404 "404 Not Found\n";
    }

    listen 8443 ssl http2; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/<YOUR_HOST>/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/<YOUR_HOST>/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}


server {
    listen 80 default_server;
    server_name _;

    if ($host = "<YOUR_HOST>") {
        return 301 https://$host$request_uri;
    }

    location / {
      resolver 8.8.8.8;

      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 $scheme;
      proxy_buffering         off;
      proxy_request_buffering off;
      proxy_pass          http://$host:80;
    }
}