Would it be possible to use ports 443 and 80 for both Adguard Home and Vaultwarden? They're both on the same machine, Vaultwarden will be in a docker container and Adguard Home not. I'm doing this on an Ubuntu server.
You're looking for a proxy, a way to divvy out requests between the two containers. The proxy will listen on those ports and then split the traffic to the two other containers (which are listening on 2 different ports)
Start looking into nginx reverse proxy, traefik, or caddy
I’ve just started doing that on my setup this week.
Personally, I went for nginx. Fairly straightforward to get up and running. Suddenly, my containers (as well as a couple of other VMs and devices) have their own host names and no trailing port numbers.
Much tidier.