Good morning
Sadly I’ve abandoned Docker Swarm in unpriviledged system containers for VMs because I couldn’t get it to work to to the restrictions and despite this solution:
In regards to your question, I don’t recall seeing that error so I thought I would give it another spin again, but now when trying to attach the block type disk created via sudo zfs create... using the command lxc config device add {instanceName} {deviceName} disk source=/dev/zvol/{customDir}/{blockDeviceName} I get a new error preventing me from attaching block devices to containers:
Error: Invalid device "{deviceName}" on container "{instanceName}" of project "{projectName}": Attaching disks not backed by a pool is forbidden
So the goalposts have moved so now we’re further away from getting Docker Swarm working in an unprivileged system container backed by ZFS storage pools.
Host: Physical Dell server, x86_64 Ubuntu Server 22.04
LXD: 5.6-794016a