Jun 01 21:23:13 u1 networkd-dispatcher: dbus.exceptions.DBusException: org.freedesktop.DBus.Error.AccessDenied: Failed to query AppArmor policy: Permission denied
So this looks like it’s the dbus-daemon integration with apparmor which isn’t working as it should. I tried even putting a blanket rule to allow all dbus access but it’s not working.
I suspect the best option here is to file a bug against apparmor upstream to have someone familiar with their dbus integration take a look at what’s going on here.
As an ugly workaround, I’ve confirmed that editing
/usr/share/dbus-1/system.conf and adding:
busconfig section, followed with a container reboot does in fact fix the issue.