Just to put a pin in this ,from my perspective, I gave up fighting this on truenas and leaned on Caddy in my OpnSense router. It’s a plugin and there’s a pretty straightforward and well documented workflow on how to get it running.
Only drawback is that everything is using a (valid) wildcard cert for my domain instead of generating a cert for each site. Probably my fault somewhere but it works despite that annoyance.
Caddy on the NAS is another option. See:
and
I have question about port 80.
You starting traefik on port 80 but also the TrueNAS GUI is on port 80.
So how does it works?
You change the UI to listen to a different port.
Correct, and this is in System Advanced options if memory serves.
As a rule, a few minutes after anything joins my network, if I can change the ports on the web interface for it, I will. Everything tries to use 80/443/8080/8443 and eventually something will break. So stop that from being a problem.
This is also why a lot of docker apps in the TN apps catalog use 30000+ port numbers. Assuming they don’t overlap you’ll never run into problems accessing an app you deploy via the app catalog (using defaults).
