docs: add example reverse proxy config for HA Proxy

[linuxtim]

Thanks for helping to maintain Immich and also for looking at this PR...

haproxy is a commonly used and long-standing high performance and full featured proxy and load balancer etc. etc. This PR adds instructions for configuring HA Proxy to provide access to Immich.

Since the availability and use of basic auth (see #6840 etc.) is not well documented, I also show the use of this in the sample config (along with instructions for how to omit that feature).

Thanks!

Tim.

[bo0tzz]

Thanks for the PR! I think we want to keep the configurations on this page to the bare minimum without extra bits like basic auth or HTTPS, otherwise the page is going to overflow with those in no time. If you want to document a more elaborate configuration, feel free to write that up elsewhere and add a link to the community guides (https://immich.app/docs/community-guides).

[github-actions]

📖 Documentation deployed to pr-12347.preview.immich.app

[mmomjian]

Thanks for the PR! I think we want to keep the configurations on this page to the bare minimum without extra bits like basic auth or HTTPS, otherwise the page is going to overflow with those in no time. If you want to document a more elaborate configuration, feel free to write that up elsewhere and add a link to the community guides (https://immich.app/docs/community-guides).

Agreed, especially since Basic auth doesn't work with our video player library. We should probably cut it down to only the backend immich_b_e section, with less intro comments - user should know how to add/configure their own proxy already.