I use nginx on the main server (not in a container) with simple reverse proxy (not well versed on reverse proxies but this worked fine on my other containers so assumed it would here too…) with Keycloak(v23.0.1) running from a docker container.
What have I done wrong to have Keycloak displaying the port when I go to the admin page?

Below is what is displaying (note that the Keycloak site works as normal apart from displaying the port number in the browser)

By going to keycloak.tld.com I end up at https://keycloak.tld.com:58443/admin/master/console/#/master/users (port added)

The port is the right port, set both in the nginx config and in the docker run config…
Below is my nginx config:

server {
    server_name  keycloak.tld.com;

    access_log  /var/log/nginx/keycloak.access.log;
    error_log   /var/log/nginx/keycloak.error.log;

    location / {
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-Host $host;
      proxy_set_header X-Forwarded-Proto https;
      proxy_pass https://localhost:58443;
  }


    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/keycloak.tld.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/keycloak.tld.com/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 {
    if ($host = keycloak.tld.com) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


    server_name  keycloak.tld.com;
    listen 80;
    return 404; # managed by Certbot


}

What have I missed?