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Make ExpandVolumeDevice() idempotent if existing volume 

capacity meets the requested size.

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
pull/6/head
Humble Chirammal 2018-01-22 21:07:19 +05:30
parent 23226c24d4
commit 14a2671d08
1 changed files with 15 additions and 0 deletions
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15
pkg/volume/glusterfs/glusterfs.go
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@ -1132,6 +1132,21 @@ func (plugin *glusterfsPlugin) ExpandVolumeDevice(spec *volume.Spec, newSize res
expansionSize := (newSize.Value() - oldSize.Value())
expansionSizeGiB := int(volume.RoundUpSize(expansionSize, volume.GIB))
// Find out requested Size
requestGiB := volume.RoundUpToGiB(newSize)
//Check the existing volume size
currentVolumeInfo, err := cli.VolumeInfo(volumeID)
if err != nil {
glog.Errorf("error when fetching details of volume :%v", err)
return oldSize, err
}
if int64(currentVolumeInfo.Size) >= requestGiB {
return newSize, nil
}
// Make volume expansion request
volumeExpandReq := &gapi.VolumeExpandRequest{Size: expansionSizeGiB}