Use StageTargetPath in NodePublishVolume

Adds the missing volume ID, target path and capabilities validations
as well.

Author: darkowlzz

mock/service/node.go

@@ -103,11 +103,16 @@ func (s *service) NodePublishVolume(
 	req *csi.NodePublishVolumeRequest) (
 	*csi.NodePublishVolumeResponse, error) {
 
-	device, ok := req.PublishInfo["device"]
-	if !ok {
-		return nil, status.Error(
-			codes.InvalidArgument,
-			"publish volume info 'device' key required")
+	if len(req.GetVolumeId()) == 0 {
+		return nil, status.Error(codes.InvalidArgument, "Volume ID cannot be empty")
+	}
+
+	if len(req.GetTargetPath()) == 0 {
+		return nil, status.Error(codes.InvalidArgument, "Target Path cannot be empty")
+	}
+
+	if req.GetVolumeCapability() == nil {
+		return nil, status.Error(codes.InvalidArgument, "Volume Capability cannot be empty")
 	}
 
 	s.volsRWL.Lock()
@@ -135,7 +140,7 @@ func (s *service) NodePublishVolume(
 	}
 
 	// Publish the volume.
-	v.Attributes[nodeMntPathKey] = device
+	v.Attributes[nodeMntPathKey] = req.GetStagingTargetPath()
 	s.vols[i] = v
 
 	return &csi.NodePublishVolumeResponse{}, nil