@yusf it's mostly VMs on dedicated Proxmox hosts with standard full disk encryption (luks I believe), but I just realized they're all still on 16.04, gonna have to do some updating
That reminds me of an on-topic question. Does Cloudron also handles dist upgrades? If not, how should I perform those myself without breaking anything?
Only security updates are applied automatically. Dist upgrade have to be done by hand. If dist upgrade fails, best bet is to restore into a new instance from a backup.
Yeah, my experience with ubuntu upgades especially dist upgade is spotty at best. I just upgraded my laptop to Ubuntu 19 yesterday and it was total fail. I just re-installed and started afresh. What I do is to backup my $HOME and put it back in a new installation.