I've been spent several evenings trying to get Immich working through an apache2 reverse proxy, but every time the browser ends up timing out with a 502 error.
The apache config is attached.
I am confident that this config and the Apache2 server are working, as if I change the port number from 2283 to another port associated with a different service available on <localhost> then by going to album.mydomain.com, that service is working correctly. Apache logs page requests to that service as expected. mod_proxy and mod_proxy_wstunnel are enabled.
When reverted to port 2283, apache2 just records one log entry in access.log with a 502 bad gateway error, even with logging set to verbose.
I can't find anything relevant in the Immich logs, even when the log level is cranked up to verbose.
The Immich server itself is working correctly when accessed directly on the local network.
Is there a way to get Immich to log failed web access attempts? Any other ideas as to what may be wrong?