Exporting a Single Velero Backup to Another S3 Location?

[mame-leadec]

Hi everyone

I’m wondering if it’s possible to export a single Velero backup from one S3 storage location to another.

For example, if I have multiple backups stored in one S3 bucket, is there a way to move or copy just one of those backups (including its metadata, related objects from kopia repo) to a different S3 bucket?

Any guidance, best practices would be greatly appreciated!

Thanks in advance

[blackpiglet]

There is no such way by my knowledge.
Could you give more information about why you need this?

[mame-leadec]

There are several reasons

• It would be nice to export known good backups to an external storage location (as an additional security measure) --> Cold Storage
• Since our backups are performed very frequently, I don't want to mirror everything, just a selection.

[sseago]

Kopia makes this significantly more difficult. A kopia repository collects all kopia snapshots for a given namespace and BSL in one repository in order to maximize the potential for incremental backups an deduplication. Snapshots taken for a given backup may rely on snapshots from a previous backup, and later backups may depend on this backup's snapshots.

[mame-leadec]

I've been looking into Kopia a little, and it seems that there is an option to migrate a snapshot to another Kopia repository. I assume that Kopia then ensures that all dependencies from previous incremental backups are taken into account...

If I create an S3 bucket and a new Kopia repo in it with the specified folder structure and copy a specific backup to the “backups” folder:

• backups
  • my_backup
    • my_backup.tar.gz
• kopia
  • my_namspace (new kopia repo)

Will Velero recognize this backup as valid if I connect this S3 bucket as a BSL? How does Velero “link” the backup folder to the actual snapshots? Is some kind of UUID used for this? Or just a naming convention?