nginx.conf

server {
  server_name changethis;

    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    ssl_certificate /etc/letsencrypt/live/changethis/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/changethis/privkey.pem;
    include /etc/letsencrypt/options-ssl-nginx.conf;
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;

    add_header strict_sni on;
    add_header strict_sni_header on;
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
    add_header X-XSS-Protection "1; mode=block";
    add_header X-Frame-Options "DENY";
    add_header Clear-Site-Data "cookies";
    add_header X-Content-Type-Options nosniff;
    add_header Referrer-Policy "strict-origin";
    resolver 1.1.1.1;

    ssl_trusted_certificate /etc/letsencrypt/live/changethis/chain.pem;
    ssl_stapling on;
    ssl_stapling_verify on;

    # disable all logs  
    access_log /dev/null;
    error_log  /dev/null;
  
  location / {
                # Restoring original visitor IPs (https://www.cloudflare.com/ips-v4)
        # - IPv4
        set_real_ip_from 103.21.244.0/22;
        set_real_ip_from 103.22.200.0/22;
        set_real_ip_from 103.31.4.0/22;
        set_real_ip_from 104.16.0.0/13;
        set_real_ip_from 104.24.0.0/14;
        set_real_ip_from 108.162.192.0/18;
        set_real_ip_from 131.0.72.0/22;
        set_real_ip_from 141.101.64.0/18;
        set_real_ip_from 162.158.0.0/15;
        set_real_ip_from 172.64.0.0/13;
        set_real_ip_from 173.245.48.0/20;
        set_real_ip_from 188.114.96.0/20;
        set_real_ip_from 190.93.240.0/20;
        set_real_ip_from 197.234.240.0/22;
        set_real_ip_from 198.41.128.0/17;

        # - IPv6
        # Restoring original visitor IPs (https://www.cloudflare.com/ips-v6)
        set_real_ip_from 2400:cb00::/32;
        set_real_ip_from 2606:4700::/32;
        set_real_ip_from 2803:f800::/32;
        set_real_ip_from 2405:b500::/32;
        set_real_ip_from 2405:8100::/32;
        set_real_ip_from 2a06:98c0::/29;
        set_real_ip_from 2c0f:f248::/32;

        real_ip_header CF-Connecting-IP;
        real_ip_recursive on;

                proxy_pass http://localhost:8055;
                proxy_set_header   Host             $host;
                proxy_set_header   Connection       $http_connection;
                proxy_set_header   X-Real-IP        $remote_addr;
                proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
                add_header Cache-Control "public, max-age=3600, must-revalidate, no-transform";
        }
}

server {
  listen 80;
  listen [::]:80;
  server_name changethis;
  return 301 https://changethis$request_uri;
  }