remram44/ceph-k8s-backup

A backup solution for Ceph and Kubernetes, using Restic

ceph-k8s-backup's Issues

Stop using the in-tree RBD volume support

In-tree support for RBD is deprecated in Kubernetes 1.28. We have to use CSI instead.

ceph-csi supports using externally-created RBD images: https://github.com/ceph/ceph-csi/blob/devel/docs/static-pvc.md

Backup CephFS volumes

Original issue by @remram44, 2023-03-08

Add retention policy

Original issue by @remram44, 2023-05-28

Add an optional CronJob that runs restic forget/restic prune, and a Helm value to set that policy.

Maybe don't backup immediately

Original issue by @remram44, 2023-05-12

The system treats "no last backup date" as "needs to be backed up". This means that if you create a PVC, use it for a a few hours, and remove it, it will have get backed up before the first hour was up (depending on when the backup job runs).

Problems with that:

• You probably don't have any data in there the first time it gets picked up by ceph-backup
• A test PVC will get backed up, wasting backup space

Doing the first backup once the PVC has exited for a few hours might be better (for example 6 hours). This can be achieved by looking at the creationTimestamp.

Create an easy way to restore from backup

Original issue by @remram44, 2023-04-03

There should be a way for admins to restore a backup into a PersistentVolumeClaim.