When the rbd.Manager creates a VolumeGroupSnapshot, each RBD-snapshot
that is created as part of the RBD-group needs to be cloned into its own
RBD-image that will be used as a CSI Snapshot.
The VolumeGroup.CreateSnapshots() creates the RBD-group snapshot and
returns a list of the Snapshot structs.
Signed-off-by: Niels de Vos <ndevos@ibm.com>
The NewSnapshotByID() function makes it possible to clone a new Snapshot
from an existing RBD-image and the ID of an RBD-snapshot on that image.
This will be used by the VolumeGroupSnapshot feature, where the ID of an
RBD-snapshot is obtained for the RBD-snapshot on the RBD-images.
Signed-off-by: Niels de Vos <ndevos@ibm.com>
The rbdSnapshot/rbdImage object implements all functions for a useful
Snapshot interface. The rbd.Manager will be able to use this for
providing VolumeGroupSnapshot support.
Signed-off-by: Niels de Vos <ndevos@ibm.com>
There is no need for the `Manager.DeleteVolumeGroup()` function as
`VolumeGroup.Delete()` should cover everything too.
By moving the `.Delete()` functionality of removing the group from the
journal to the shared `commonVolumeGroup` type, a volume group snaphot
can use it as well.
Signed-off-by: Niels de Vos <ndevos@ibm.com>
Add extra error checking to make sure trying to create an existing
volume group does not result in a failure. The same counts for deleting
a non-existing volume group, and adding/removing volumes to/from the
volume group.
Signed-off-by: Niels de Vos <ndevos@ibm.com>
A VolumeGroup CSI-Addons object contains a list of CSI Volumes. A
ToCSI() function makes creating such a list much simpler.
Signed-off-by: Niels de Vos <ndevos@ibm.com>
The rbd_types package was initially created with references to the rbd
package. And the rbd package references the rbd_types package. Having
rbd/types was not possible due to recursive imports. After cleaning up
the rbd_types package, it can be renamed to rbd/types.
Signed-off-by: Niels de Vos <ndevos@ibm.com>
