"uid": "${datasource}"
          },
          "expr": "round(sum(irate(istio_requests_total{reporter=\"source\"}[1m])), 0.001)",
          "intervalFactor": 1,
          "refId": "A",
          "step": 4
        }
      ],
      "title": "Global Request Volume",
      "type": "stat"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${datasource}"
      },

  istioctl x version

  # Retrieve version information directly from the control plane, using RSA certificate security
  # (Certificates must be obtained before this step.  The --cert-dir flag lets istioctl bypass the Kubernetes API server.)
  istioctl x version --xds-address istio.example.com:15012 --cert-dir ~/.istio-certs