How can I apply an SSL certificate to plex app in scale 24.10

Is there a way to configure an SSL certificate for plex app in the app config?
Is there ever going to be an option to select a certificate that is in Truenas certificates?

I do have portainer app installed as well but im not very adept at Docker so hoping someone might be able to advise me on this please.

I purchased a domain just the end of last year, for a different purpose, but an added benefit is I’ve been able to use SSL certificates on my Truenas machine (and subsequent containers),

I use Pihole for my DNS and gave my Truenas machine a sub.domain

To install a certificate on Truenas I followed:

I started to use Nginx to give my containers a local sub.domain name and followed this guide:

To add SSl certificates to them

Hope this helps, just in work atm so cant go too indepth but those with those 2 videos I got sorted.

To add a bit more detail to my query…
I have cloudflare setup for letsencrypt certificate in truenas scale. i just want my plex to stop presenting its stupid certificate in the web app, i was able to do this when my plex ran on bare metal.
With docker some apps allow you to specify the truenas certificate to be used and i would like to use this on the plex app instead

I’m not sure how to do that within docker, I’ll have to have a look, however I can confirm using Nginx Proxy Manager I can use an SSL certificate and connect to the plex webui with : plex.mydomain - and it shows up as secure (just using my domain for my local network, nothings open to the web)