[K8SPSMDB-276] Restore backups from S3 without Kubernetes custom resource

[spron-in]

Community Note

• Please vote on this issue by adding a 👍 reaction to the original issue to help the community and maintainers prioritize this request
• Please do not leave "+1" or "me too" comments, they generate extra noise for issue followers and do not help prioritize the request
• If you are interested in working on this issue or have submitted a pull request, please leave a comment

Tell us about the feature
Restore the backup from S3 bucket if there is no Kubernetes CR. This feature is already supported by PXC Operator.

Which product(s) is this request for?
MongoDB, Operators

Tell us about the problem
There are multiple use cases:

• k8s cluster goes down completely and user needs to restore the DB on newly provisioned one without any previous CRs
• User wants to provision the copy of the database from S3 to another DB cluster

Describe alternatives you've considered
There is a workaround - restore DB manually from the backup by connecting to MongoDB itself

Additional context
None

[spron-in]

Released in v1.9.0 of the Percona Distribution for MongoDB Operator.
Release notes are here.