server {
  listen {{ simple_reverse_proxy_external_port }} ssl;
  listen [::]:{{ simple_reverse_proxy_external_port }} ssl;
  server_name {{ simple_reverse_proxy_internal_subdomain }}.kleinendorst.info;

  client_max_body_size 20M;

  # SSL via Let's Encrypt
  ssl_certificate       /etc/letsencrypt/live/{{ simple_reverse_proxy_internal_subdomain }}.kleinendorst.info/fullchain.pem; # managed by Certbot
  ssl_certificate_key   /etc/letsencrypt/live/{{ simple_reverse_proxy_internal_subdomain }}.kleinendorst.info/privkey.pem; # managed by Certbot
  ssl_protocols         TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
  ssl_ciphers           HIGH:!aNULL:!MD5;

  location / {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $host;

    set $upstream_address 127.0.0.1;
    set $upstream_port {{ simple_reverse_proxy_internal_port }};
    set $upstream_proto http;
    proxy_pass $upstream_proto://$upstream_address:$upstream_port;
  }
}