"stacking": {
              "group": "A",
              "mode": "none"
            },
            "thresholdsStyle": {
              "mode": "off"
            }
          },
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {

              "group": "A",
              "mode": "none"
            },
            "thresholdsStyle": {
              "mode": "off"
            }
          },
          "links": [],
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {

        "uid": "${datasource}"
      },
      "fieldConfig": {
        "defaults": {
          "color": {
            "fixedColor": "rgb(31, 120, 193)",
            "mode": "fixed"
          },
          "mappings": [
            {
              "options": {
                "match": "null",
                "result": {
                  "text": "N/A"
                }
              },
              "type": "special"

  optional k8s.io.api.core.v1.PodTemplateSpec template = 3;

  // volumeClaimTemplates is a list of claims that pods are allowed to reference.
  // The StatefulSet controller is responsible for mapping network identities to
  // claims in a way that maintains the identity of a pod. Every claim in
  // this list must have at least one matching (by name) volumeMount in one

These rules are expressed in code in the
[name](https://github.com/istio/operator/blob/e9097258cb4fbe59648e7da663cdad6f16927b8f/pkg/name/name.go#L131) package.

### K8s settings

Rather than defining selective mappings from parameters to fields in K8s resources, the `IstioOperatorSpec` API
contains a consistent K8s block for each Istio component. The available K8s settings are defined in

  // +kubebuilder:validation:MaxLength=316
  optional string error = 3;
}

// IngressRule represents the rules mapping the paths under a specified host to
// the related backend services. Incoming requests are first evaluated for a host
// match, then routed to the backend associated with the matching IngressRuleValue.
message IngressRule {

  // +kubebuilder:validation:MaxLength=316
  optional string error = 3;
}

// IngressRule represents the rules mapping the paths under a specified host to
// the related backend services. Incoming requests are first evaluated for a host
// match, then routed to the backend associated with the matching IngressRuleValue.
message IngressRule {

// (only `type` and one other matching field should be set at once).
message MetricSpec {
  // type is the type of metric source.  It should be one of "ContainerResource", "External",
  // "Object", "Pods" or "Resource", each mapping to a matching field in the object.
  // Note: "ContainerResource" type is available on when the feature-gate
  // HPAContainerMetrics is enabled
  optional string type = 1;

// (only `type` and one other matching field should be set at once).
message MetricSpec {
  // type is the type of metric source.  It should be one of "ContainerResource",
  // "External", "Object", "Pods" or "Resource", each mapping to a matching field in the object.
  // Note: "ContainerResource" type is available on when the feature-gate
  // HPAContainerMetrics is enabled
  optional string type = 1;

  optional k8s.io.api.core.v1.PodTemplateSpec template = 3;

  // volumeClaimTemplates is a list of claims that pods are allowed to reference.
  // The StatefulSet controller is responsible for mapping network identities to
  // claims in a way that maintains the identity of a pod. Every claim in
  // this list must have at least one matching (by name) volumeMount in one