podAnnotations: {}
      type: ClusterIP # change to NodePort or LoadBalancer if need be

      # Setup how istiod Service is configured. See https://kubernetes.io/docs/concepts/services-networking/dual-stack/#services
      ipFamilyPolicy: ""
      ipFamilies: []

      secretVolumes:
      - name: egressgateway-certs
        secretName: istio-egressgateway-certs
        mountPath: /etc/istio/egressgateway-certs

      loadBalancerIP: ""
      loadBalancerSourceRanges: []
      serviceAnnotations: {}

      # Setup how istiod Service is configured. See https://kubernetes.io/docs/concepts/services-networking/dual-stack/#services
      ipFamilyPolicy: ""
      ipFamilies: []

      # To generate an internal load balancer:
      # --set serviceAnnotations.cloud.google.com/load-balancer-type=internal
      #serviceAnnotations:

                "type": "prometheus",
                "uid": "${datasource}"
              },
              "expr": "go_memstats_stack_inuse_bytes{app=\"istiod\"}",
              "format": "time_series",
              "intervalFactor": 2,
              "legendFormat": "Stack in-use",
              "refId": "G",
              "step": 2
            },
            {
              "datasource": {

      "nullPointMode": "null",
      "percentage": false,
      "pointradius": 5,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${datasource}"
          },