I found this post useful in figuring out how to replicate a cluster’s snapshots to an external location (in our case, an s3 bucket): Moving existing atlas mongo snapshots to external storage
However, I am now wondering if there is any documentation on how to restore a sharded cluster from an externally stored snapshot.
The scenario in this case is that someone either accidentally or maliciously deletes a mongo project (thus also deleting all backups). How would one go about creating a new cluster from an externally stored snapshot?
What if the cluster was encrypted at rest? Are the snapshots also encrypted? Would one need the old encryption key to be able to restore the snapshot to a new cluster?