Etcd backup to S3

Can I backup etcd to AWS S3 via s3-exporter? How can I use the s3-exporter?

Look at the backupStoreContainer and backupCleanupContainer definition: https://docs.kubermatic.com/kubermatic/v2.14/concepts/kubermaticconfiguration/. The s3-exporter is only used to get the backup state to Prometheus.

Backup up to AWS S3 should be possible by just changing the endpoint