Velero is the backup solution for PVCs and k8s way.
this post was submitted on 12 Aug 2025
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Interesting! I'm using in fact the NFS CSI driver, and it seems that Velero can attach to any CSI interface to make backups. I'm definetely taking a look at it.
A lot of commercial kubernetes backup tools incorporate Velero for portions of their protection methods too!
I use Longhorn for generic PVC and static NFS shares for large files. Longhorn creates scheduled backups to a NFS share, which is then backed up to a Backblaze bucket. I have yet to test restore from Backblaze tho :D
Of course this means that I have 3 copies of the same data across multiple Nodes because of how Longhorn works. That's why I usually don't create large volumes, just enough to get the app working
I'm thinking about just doing something outside kubernetes that just copies the data from the directory that NFS provides to another storage.
This is what I'm doing for the most part. A TrueNAS server provides the NFS shares and periodically backs them up with restic.
Some apps don't like NFS very much, especially those that require SQLite. If you're running Jellyfin over NFS you probably know what I mean. For those apps I use Ceph instead, which is highly available and a lot faster but also more complicated. Those PVCs I backup from within kubernetes to S3 storage with velero.