message: add null check for labels
  us
diff: @@ -273,7 +273,7 @@ export class TransformTopologyData {
  return data;
  }
  return data.filter((dc) => {
  - return dc.metadata.labels[PART_OF] && dc.metadata.labels[PART_OF] === this.application;
  + return _.get(dc, ['metadata', 'labels', PART_OF]) === this.application;
  });
  }
  