Question.
By having it be a container
Elaborate please.
All of my services run on LXC containers. Some files and configs are backed up to NAS and offsite. The containers are snapshotted in their entirety before I do any work on them. A snapshot takes 5 seconds to make and causes no downtime. If I regret a change or mess it up, I can restore the snapshot in under a minute at the cost of some seconds of downtime.
My only non-container machines are my desktop (doesn’t count), my NAS and the Hypervisor. The Hypervisor is very clean and wouldn’t be much fuss to reinstall and the NAS is literally just Debian with NFS. All of these have a regular rsync which runs to backup the important files.
Relax and Recover for bare metal backup of the OS critical components and directories, and Deja Dup (or Gnome Backup) for user files
I use proxmox and proxmox backup server (in a vm). I reinstall them both, and re-add lxc and vm and their drives from backup. has already worked once.
important files are additionaly synced to laptop and phone using syncthing.
proxmox backups (which are encrypted) are rcloned to backblaze for offsite backup
I found UrBackup to be very easy to use. Very little nitty-gritty setup and configuration required to get started. I have a feeling those with more experience will (rightly) pick apart if I’m missing something egregiously bad about it, but it worked for my small homelab use cases.
Rclone with crypt option, to any super cheap cloud storage.