[ubuntu] Use Docker app with existing LAMP installation

I've posted this question in the Docker and Bitwarden forums, but have so far had only one suggestion

This either means that what I try to do is so simple that it's obvious or what I'm trying to do is so silly that nobody would do this.

I’m running my own mail and cloud server on the latest LTS Ubuntu Server.

I’m using Apache (with a letsencrypt cert) for the cloud (Nextcloud) and am looking at installing BitWarden to make pw management easier.

Bitwarden,however, only comes in Docker, which complicates things somewhat (at least for me).

I can’t seem to find a standard approach of interacting a docker instance with an non docker Webserver (Apache).

One suggestion I did find is to reverse proxy the Aapache Server, but even that suggestion was vague on what has to happen on the docker side (i.e. how can I use my letsencypt cert in Docker)

Any pointers are greatly appreciated