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rbd: add validation for thick restore/clone

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added validation to allow only Restore of Thick PVC
snapshot to a thick clone and creation of thick clone
from thick PVC.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
This commit is contained in:
Madhu Rajanna 2021-06-17 11:45:29 +05:30 committed by mergify[bot]
parent fc442221e4
commit 7966d2e5c1
2 changed files with 26 additions and 0 deletions
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10
internal/rbd/controllerserver.go
View File

@ -222,11 +222,21 @@ func checkValidCreateVolumeRequest(rbdVol, parentVol *rbdVolume, rbdSnap *rbdSna
if err != nil {
return status.Errorf(codes.InvalidArgument, "cannot restore from snapshot %s: %s", rbdSnap, err.Error())
}
err = rbdSnap.isCompatibleThickProvision(rbdVol)
if err != nil {
return status.Errorf(codes.InvalidArgument, "cannot restore from snapshot %s: %s", rbdSnap, err.Error())
}
case parentVol != nil:
err = parentVol.isCompatibleEncryption(&rbdVol.rbdImage)
if err != nil {
return status.Errorf(codes.InvalidArgument, "cannot clone from volume %s: %s", parentVol, err.Error())
}
err = parentVol.isCompatibleThickProvision(rbdVol)
if err != nil {
return status.Errorf(codes.InvalidArgument, "cannot clone from volume %s: %s", parentVol, err.Error())
}
}
return nil
}

16
internal/rbd/rbd_util.go
View File

@ -1613,3 +1613,19 @@ func (ri *rbdImage) isCompatibleEncryption(dst *rbdImage) error {
return nil
}
func (ri *rbdImage) isCompatibleThickProvision(dst *rbdVolume) error {
thick, err := ri.isThickProvisioned()
if err != nil {
return err
}
switch {
case thick && !dst.ThickProvision:
return fmt.Errorf("cannot create thin volume from thick volume %q", ri)
case !thick && dst.ThickProvision:
return fmt.Errorf("cannot create thick volume from thin volume %q", ri)
}
return nil
}