Allow configuration of trusted proxies via env vars

[fsoedjede]

Hi

I've encountered an issue when trying to make pla work in my context.

My config:
[Server 1: Nginx proxy + SSL] -> [Server 2: Pla inside docker container]

When I start pla, it works but when I click on an item of the tree, the page reloads multiple times.
I've investigated and found that ssl is not correctly detected.
I had to update the container to add my IP in trusted proxies.
After that everything works well. That's why my suggestion

I've seen this issue but it does not cover my case: #294

Thanks

[leenooks]

I've already using IPv4 non-routable nets in the trusted proxy configs - are you using public ips?

[fsoedjede]

I've already using IPv4 non-routable nets in the trusted proxy configs - are you using public ips?

I'm not sure I've understood the question but but i'm using public ips
Both server are OVH VPS and are accessible via internet.