Author: Takafumi Takahashi (Hitachi Vantara)
Kubernetes v1.26, released last month, introduced an alpha feature
that lets you specify a data source for a PersistentVolumeClaim,
even where the source data belong to a different namespace.With the
new feature enabled, you specify a namespace in the
dataSourceRef field of a new
PersistentVolumeClaim.Once Kubernetes checks that access is OK, the
new PersistentVolume can populate its data from the storage source
specified in that other namespace.Before Kubernetes v1.26, provided
your cluster had the AnyVolumeDataSource feature
enabled, you could already provision new volumes from