I’ve not used dockge so it may be great but at least for this case portainer puts all the stack (docker-compose) files on disk. It’s very easy to grab them if the app is unavailable.
I use a single Portainer service to manage 5 servers, 3 local and 2 VPS. I didn’t have to relearn anything beyond my management tool of choice (compose, swarm, k8s etc)
It’s the multiple volumes that are throwing it.
You want to mount the drive at
/media/HDD1:/media
or something like that and configure Radarr to use/media/movies
and/media/downloads
as it’s storage locations.Hardlinks only work on the same volume, which technically they are, but the environment inside the container has no way of knowing that.