I rolled both devices to the dev branch and this issue seems to be resolved.
RPi 3B region:
MAAS Version 2.2.0 (beta2+bzr5717)
NUC rack:
MAAS Version 2.2.0 (beta2+bzr5717)
While I am ecstatic that this is also working now, I am deeply concerned that none of the Ubuntu "stable" stack is currently functional in a MaaS + Juju deployment due to various bugs, and only the devel PPAs seem to function right now with LXD and a network bridge to MaaS.
I rolled both devices to the dev branch and this issue seems to be resolved.
RPi 3B region:
MAAS Version 2.2.0 (beta2+bzr5717)
NUC rack:
MAAS Version 2.2.0 (beta2+bzr5717)
While I am ecstatic that this is also working now, I am deeply concerned that none of the Ubuntu "stable" stack is currently functional in a MaaS + Juju deployment due to various bugs, and only the devel PPAs seem to function right now with LXD and a network bridge to MaaS.
(https:/ /bugs.launchpad .net/juju/ +bug/1633788)
FWIW