Yes I did look at the logs, there's nothing useful in there.
I've also tried using Juju 2.0-beta6-xenial-amd64 on the same MAAS 1.9.3, deploying ubuntu to a couple of LXC and LXD containers. All of them came up as expected, including the correct /etc/resolv.conf like on the host. Pinging another running maas node by hostname or FQDN work exactly the same.
Yes I did look at the logs, there's nothing useful in there.
I've also tried using Juju 2.0-beta6- xenial- amd64 on the same MAAS 1.9.3, deploying ubuntu to a couple of LXC and LXD containers. All of them came up as expected, including the correct /etc/resolv.conf like on the host. Pinging another running maas node by hostname or FQDN work exactly the same.