[sofixa]

> If you had `unattended-upgrades` running and had the "automatic reboot" option enabled, then all your Ubuntu 20.04 servers running Docker would reboot themselves and not come back up.

Isn't the common wisdom that you should have them enabled, but staggered across hours/days?

[gtirloni]

Not a huge Debian/Ubuntu user but I think the systemd timer that triggers the unattended updates has a random delay added to it. I don't know of it's hours or just seconds.

[markstos]

I believe it's staggered across hours by default and it seems that Canonical might have been able to at least stop pushing out the bad update even before they had a fix

[AtlasBarfed]

Probably better you have rolling A/B replacements that stop the replacement run if the replacement doesn't come up.

This is mostly an in-place upgrade issue?