Woke up to complete service outage because all machines on lxdbr0 got a new ip-address - over the last years the DHCP assigned addresses stayed constant so I’m quite surprised that these are not constant anymore.
Nothing in the logs, it probably happened after an auto-update (using snap install on Ubuntu 18.04) I did not change anything on the server.
# snap list lxd Name Version Rev Aufzeichnung Herausgeber Hinweise lxd 4.0.0 14611 latest/stable canonical✓ -
but it happened with the refresh to the revision before the current:
# LANG=C snap changes ID Status Spawn Ready Summary 263 Done yesterday at 23:19 CEST yesterday at 23:20 CEST Automatisch Snap "lxd" auffrischen 264 Done today at 04:44 CEST today at 04:45 CEST Automatisch Snap "lxd" auffrischen
so the refresh at 23:20 was the likely cause.
any ideas why this could happen?