Anyone do this with success? I tried setting it up on TN Scale and couldn鈥檛 discover any devices. After some digging it sounds like that鈥檚 a common occurrence.
I actually started using HomeAssistant on TrueNAS Core a few years ago. From my understanding the best way to do this now it鈥檚 to use the TrueNAS X86-64 ISO in a VM. The TrueNAS docker system seems to be integrated differently than a standard docker installation on an os like Debian.
If you really want to keep using docker on TrueNAS you should create users with unique ID鈥檚 in TrueNAS and give them permission to access the needed resources. Those ID鈥檚 also need to match the user in the Docker container.
I personally use HomeAssistant on an Odroid N2+ and haven鈥檛 made the switch to TrueNAS Scale so I can鈥檛 be much help beyond that.
I know I鈥檓 not answering your question, but for what it鈥檚 worth, I鈥檝e run TrueNAS Scale and HAOS as VM鈥檚 on Proxmox for years without issue. I prefer to let my storage be storage and run a dedicated hypervisor.
If you鈥檙e connecting drives to TrueNAS via a HBA card then virtualising TrueNAS in Proxmox is straightforward, just pass the whole card through to the VM and TrueNAS is none the wiser. The added overhead for Proxmox is (almost) negligible.
Spin up a dedicated VM for HAOS, or whatever flavour OS you like and use docker.