About image groups
For every Kubernetes recovery point, an image group is created. An image group may include multiple images depending upon number of eligible persistent volume claims in a namespace.
A separate image is created for metadata and one image is created for every persistent volume claim.
Recovery point detail API is used to get the details about all the backup ids, resource names, copy completion status of an image group.
To support the backup from snapshot operation on the Kubernetes workload, multiple backup images are created to perform backup from snapshot for a single namespace.
For Kubernetes backup operation, a separate backup image is created for every persistent volume. All the images that are created must be grouped together to perform certain (restore, delete, import and so on) operations successfully.