From 562e5c6f3fec50fa5c48978d27a10353ec2b2f0d Mon Sep 17 00:00:00 2001
From: wenjgao <wenjgao@ebay.com>
Date: Fri, 31 Aug 2018 10:42:10 +0800
Subject: [PATCH] add lun info when construct iscsi volumeSpec from mountPath

---
 pkg/volume/iscsi/iscsi.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/pkg/volume/iscsi/iscsi.go b/pkg/volume/iscsi/iscsi.go
index f7f2cc2b130..d676065c642 100644
--- a/pkg/volume/iscsi/iscsi.go
+++ b/pkg/volume/iscsi/iscsi.go
@@ -231,6 +231,14 @@ func (plugin *iscsiPlugin) ConstructVolumeSpec(volumeName, mountPath string) (*v
 	if err != nil {
 		return nil, err
 	}
+	arr := strings.Split(device, "-lun-")
+	if len(arr) < 2 {
+		return nil, fmt.Errorf("failed to retrieve lun from globalPDPath: %v", globalPDPath)
+	}
+	lun, err := strconv.Atoi(arr[1])
+	if err != nil {
+		return nil, err
+	}
 	iface, _ := extractIface(globalPDPath)
 	iscsiVolume := &v1.Volume{
 		Name: volumeName,
@@ -238,6 +246,7 @@ func (plugin *iscsiPlugin) ConstructVolumeSpec(volumeName, mountPath string) (*v
 			ISCSI: &v1.ISCSIVolumeSource{
 				TargetPortal:   bkpPortal,
 				IQN:            iqn,
+				Lun:            int32(lun),
 				ISCSIInterface: iface,
 			},
 		},