upstream fe {
    server 127.0.0.1:8080;
}

server {
    server_name real.domain;
    listen [::]:443 ssl ipv6only=on; 
    listen 443 ssl;
    ssl_certificate /etc/letsencrypt/live/real.domain/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/real.domain/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

    location / {
        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_set_header X-Forwarded-Host $http_x_forwarded_host;
        proxy_set_header X-Forwarded-Port $http_x_forwarded_port;
        proxy_redirect off;
        proxy_pass   http://fe/;
    }
}

server {
    if ($host = real.domain) {
        return 301 https://$host$request_uri;
    }

    listen 80;
    listen [::]:80;
    server_name real.domain;
    return 404;
}