message: Update grafana mockData
diff: {
  "url": "http://172.30.139.113:3000",
  - "variablesSuffix": "svc.cluster.local"
  + "variablesSuffix": "svc.cluster.local",
  + "dashboard": "istio-dashboard",
  + "varServiceSource": "var-source",
  + "varServiceDest": "var-http_destination"
  }
  