"targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${datasource}"
          },
          "refId": "A"
        }
      ],
      "title": "vCPU Usage",
      "type": "row"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${datasource}"
      },
      "fieldConfig": {
        "defaults": {
          "color": {

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Usage: tracing::extract_prow_trace.
# If running in a prow job, this sets the parent trace to the same value Prow tracing will use, as defined in https://github.com/kubernetes/test-infra/issues/30010
function tracing::extract_prow_trace() {

This provides maximum flexibility with minimal API surface overhead.

## Making changes

## Step 1. Make changes in charts and values.yaml in `manifests` directory

Be sure to provide sufficient documentation and example usage in values.yaml.
If the chart has a `values.schema.json`, that should be updated as well.

## Step 2. Update the istioctl/Operator values

If you are modifying the `gateway` chart, you can stop here.

				shorthand := "   "
				if flag.Shorthand != "" {
					shorthand = "-" + flag.Shorthand + ","
				}
				c.Printf("  %s --%s: %s\n", shorthand, flag.Name, flag.Usage)
			}
		})
	})

	return retval

```

2) `istio-cni` chart installs the CNI plugin. This should be installed after the `base` chart and prior to `istiod` chart. Need to add `--set pilot.cni.enabled=true` to the `istiod` install to enable its usage.

```console
helm install istio-cni -n kube-system manifests/charts/istio-cni --set profile=openshift
```

3) `istio-control/istio-discovery` chart installs a revision of istiod.

```console

  //
  // The minimum valid value for expirationSeconds is 600, i.e. 10 minutes.
  //
  // +optional
  optional int32 expirationSeconds = 8;

  // allowedUsages specifies a set of usage contexts the key will be
  // valid for.
  // See:
  // 	https://tools.ietf.org/html/rfc5280#section-4.2.1.3
  // 	https://tools.ietf.org/html/rfc5280#section-4.2.1.12
  //
  // Valid values are:

    # For example: https://$remotePilotAddress:15017/validate
    validationURL: ""
    # Validation webhook caBundle value. Useful when running pilot with a well known cert
    validationCABundle: ""

    # For istioctl usage to disable istio config crds in base
    enableIstioConfigCRDs: true

  defaultRevision: "default"
  experimental:

    # mechanisms (e.g., environmental variable CA_PROVIDER).
    caName: ""

    # whether to use autoscaling/v2 template for HPA settings
    # for internal usage only, not to be configured by users.
    autoscalingv2API: true

  base:
    # For istioctl usage to disable istio config crds in base
    enableIstioConfigCRDs: true

  # `istio_cni` has been deprecated and will be removed in a future release. use `pilot.cni` instead

// New uses of this type are discouraged because of difficulty describing its usage when embedded in APIs.
//  1. Ignored fields.  It includes many fields which are not generally honored.  For instance, ResourceVersion and FieldPath are both very rarely valid in actual usage.
//  2. Invalid usage help.  It is impossible to add specific help for individual usage.  In most embedded usages, there are particular

  //
  // +optional
  optional bool podInfoOnMount = 2;

  // volumeLifecycleModes defines what kind of volumes this CSI volume driver supports.
  // The default if the list is empty is "Persistent", which is the usage defined by the
  // CSI specification and implemented in Kubernetes via the usual PV/PVC mechanism.
  //
  // The other mode is "Ephemeral". In this mode, volumes are defined inline inside the pod spec