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nfs: support ExpandVolume CSI procedure

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There is not much the NFS-provisioner needs to do to expand a volume,
everything is handled by the CephFS components.

NFS does not need a resize on the node, so only ControllerExpandVolume
is required.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
This commit is contained in:
Niels de Vos 2022-05-02 10:28:25 +02:00 committed by mergify[bot]
parent bbecb81d4f
commit 36e51402cb
2 changed files with 10 additions and 0 deletions
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9
internal/nfs/controller/controllerserver.go
View File

@ -150,3 +150,12 @@ func (cs *Server) DeleteVolume(
return cs.backendServer.DeleteVolume(ctx, req)
}
// ControllerExpandVolume calls the backend (CephFS) procedure to expand the
// volume. There is no interaction with the NFS-server needed to publish the
// new size.
func (cs *Server) ControllerExpandVolume(
ctx context.Context,
req *csi.ControllerExpandVolumeRequest) (*csi.ControllerExpandVolumeResponse, error) {
return cs.backendServer.ControllerExpandVolume(ctx, req)
}

1
internal/nfs/driver/driver.go
View File

@ -46,6 +46,7 @@ func (fs *Driver) Run(conf *util.Config) {
cd.AddControllerServiceCapabilities([]csi.ControllerServiceCapability_RPC_Type{
csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME,
csi.ControllerServiceCapability_RPC_SINGLE_NODE_MULTI_WRITER,
csi.ControllerServiceCapability_RPC_EXPAND_VOLUME,
})
// VolumeCapabilities are validated by the CephFS Controller
cd.AddVolumeCapabilityAccessModes([]csi.VolumeCapability_AccessMode_Mode{