Debian 11 image update : no name resolution for new instance

[LionelHoudelier]

Distribution: PureOs 10 (Debian 10 based)
Distribution version: amd64
LXC version: 5.14
LXD version: 5.14 with snap

Issue description

After new instance of debian/11 tonight, just after image update from images repository, no internet connection.
Steps to reproduce

lxc launch images:debian/11 myinstance --storage <pool_name>
set profile
restart
IP is correct but no internet
ping: google.com: Temporary failure in name resolution
With debian/10 and debian/12 no problem !

CAUSE: the file /etc/resolv.conf is empty

SOLUTION :
After adding the nameserver like for new debian 10 or 12, the problem gets solved.

[monstermunchkin]

I'm closing this as this is likely related to an issue we had (and fixed) some days ago. Should this problem still persist, please reopen this issue.