I use docker in Proxmox and i backup all container

Uuuh...timeshift and borg??

Proxmox Backup Server (PBS) snapshotting all my VM's / LXC's.

External VPS' and anything that can't run PBS-Client I am rsync'ing important data into my home network first, then doing a file based backup of that data to PBS via PBS-Client tool. All this is automated through cron jobs.

Those backups then get sync'd to a 2nd datastore for a bit of redundancy.

Kopia has been great.

https://github.com/kopia/kopia

Unraid with Duplicacy and Appdata Backup incremental to Backblaze

I use duplicati to backup to a secure off site location. Useful for something like vaultwarden.

https://github.com/duplicati/duplicati

Most of mine are lightweight so private repos on git.

For big data I have two NAS that sync on the daily.

Cronjobs to backup important folders to a separate disk

Git repo(s) for services & configs with weekly automated commits and pushes

As others said, use volume mounts, and I incrementally backup those with borg to minimize storage space requirements

I use rdiff-backup to backup the volumes directory of my VPS to a local machine via VPN. Containers are stored in some public registry anyways. Also use ansible with all the configurations and container settings.

I use Kopia. The cli is very easy to use and I have backups scheduled nightly. I backup all external mounts and my entire Portainer directory. Has helped in a pinch to restore busted databases.

I point Kopia cli to backup to a WebDAV location I host on my NAS. For off-site backups I run daily backups of that kopia repository to Google cloud.

I'm not sure if Google cloud is the best off-site backup solution, but I did a price comparison when I first selected it and it was the best capacity for the price that I could find at the time.

Almost everything I run is a Docker container, so I made /var/lib/docker a btrfs subvolume, and then I make every day incremental snapshots (cron job) and copy them to a secondary disk (also btrfs, using btrbk). Since they are btrfs snapshots they don't use a lot of disk space and if I really need to rollback an entire day I can

Haven't used digital ocean but I run 2 Proxmox servers and 2 NAS one of each at a different location.

I backup containers and VMs which run in Proxmox to the NAS via NFS and then have a nightly script to copy the backups from there to my remote NAS. It works, haven't lost any data yet. Still thinking about a third backup in another location as well but money is a thing 🤷

Borgbackup, borgmatic to two backup targets: one in my home and a Hetzner Storage Box. Amongst other things, i include /var/lib/docker/volumes, covering the not-filesystem-bound mounts.

Use resticker to add an additional backup service to each compose allowing me to customize some pre/post backup actions. Works like a charm 👍

Borg Backup to Hetzner Storage Box.

A few hard drives that are stored offsite and rotate every few weeks.

I just run a pg_dump through kubectl exec and pipe the stdout to a file on my master node. The same script then runs restic to send encrypted backups over to s3. I use the host name flag on the restic command as kind of a hack to get backups per service name. This eliminates the risk of overwriting files or directories with the same name.

I backup all the mounted docker volumes once every hour (snapshots). Additionally i create dumps from all databases with https://github.com/tiredofit/docker-db-backup (once every hour or once a day depending on the database).

ZFS snapshots.

duplicati to take live, crash-consistent backups of all my windows servers and VMs with Volume Shadowcopy Service (VSS)

When backing up Docker volumes, should not the docker container be stopped first.?? I can't se any support for that in the backup tools mentioned.

I use Nautical. It will stop your containers before performing an RSYNC backup.

I have bind mounts to nfs shares that are backed my zfs pools and last snapshots and sync jobs to another storage device. All containers are ephemeral.

On Proxmox i use for my Backup Solution - Hetzner Storage Bix

For databases and data I use restic-compose-backup because you can use labels in your docker compose files.

For config files I use a git repository.