https://docs.aws.amazon.com/eks/latest/userguide/csi-snapshot-controller.html
CSI snapshot controller enables the use of snapshotting functionality in compatible CSI drivers, such as the EBS CSI driver.
▫️ We recommend that you install the CSI snapshot controller through the EKS managed add-on.
▫️ Alternatively, if you want a self-managed installation of the EBS CSI snapshot controller, see Kubernetes
external-snapshotter on GitHub.#EKS