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>
Each object is responsible for maintaining a connection to the journal.
By sharing a single journal, cleanup of objects becomes more complex as
the journal is used in deferred functions and only the last should
destroy the journal connection resources.
Signed-off-by: Niels de Vos <ndevos@ibm.com>
The go-ceph rbd.GroupCreate() now returns ErrExist in case the group
that is created, already exists. The previous check only ever matched
the string comparison, which is prone to errors in case the contents is
modified by go-ceph.
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>
Many functions that are implemented for the volumeGroup type can be
shared with the (coming) volumeGroupSnapshot type. Move these functions
into a commonVolumeGroup type, so that volumeGroup and
volumeGroupSnapshot can inherit them.
Signed-off-by: Niels de Vos <ndevos@ibm.com>
updated the group stringer method
to have pool and namespace for
proper debugging/logging and to
use it with CLI as agrument as well.
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
A RBD image can only be part of a single group. While an image is added
to a group, check if the image is already part of a group, and return an
error in case it is.
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>
