corrected the node-registrar image version to v1.0.2 to be aligned with all the side cars and used strings.Join() to concatenate the path string for volume

Author: aayushrangwala

deploy/kubernetes-1.13/hostpath/csi-hostpath-plugin.yaml

@@ -37,7 +37,7 @@ spec:
       hostNetwork: true
       containers:
         - name: node-driver-registrar
-          image: quay.io/k8scsi/csi-node-driver-registrar:canary
+          image: quay.io/k8scsi/csi-node-driver-registrar:v1.0.2
           lifecycle:
             preStop:
               exec:

pkg/hostpath/controllerserver.go

@@ -22,6 +22,7 @@ import (
 	"os"
 	"sort"
 	"strconv"
+	"strings"
 
 	"github.com/golang/protobuf/ptypes"
 
@@ -38,8 +39,8 @@ import (
 
 const (
 	deviceID           = "deviceID"
-	provisionRoot      = "/csi-data-dir/"
-	snapshotRoot       = "/csi-data-dir/"
+	provisionRoot      = "/csi-data-dir"
+	snapshotRoot       = "/csi-data-dir"
 	maxStorageCapacity = tib
 )
 
@@ -346,7 +347,8 @@ func (cs *controllerServer) CreateSnapshot(ctx context.Context, req *csi.CreateS
 	snapshotID := uuid.NewUUID().String()
 	creationTime := ptypes.TimestampNow()
 	volPath := hostPathVolume.VolPath
-	file := snapshotRoot + snapshotID + ".tgz"
+	filePath := []string{snapshotRoot, "/", snapshotID, ".tgz"}
+	file := strings.Join(filePath, "")
 	args := []string{}
 	if hostPathVolume.VolAccessType == blockAccess {
 		glog.V(4).Infof("Creating snapshot of Raw Block Mode Volume")
@@ -396,7 +398,8 @@ func (cs *controllerServer) DeleteSnapshot(ctx context.Context, req *csi.DeleteS
 	}
 	snapshotID := req.GetSnapshotId()
 	glog.V(4).Infof("deleting volume %s", snapshotID)
-	path := snapshotRoot + snapshotID + ".tgz"
+	pathSlice := []string{snapshotRoot, "/", snapshotID, ".tgz"}
+	path := strings.Join(pathSlice, "")
 	os.RemoveAll(path)
 	delete(hostPathVolumeSnapshots, snapshotID)
 	return &csi.DeleteSnapshotResponse{}, nil