Istio reads from over 20 different resources types, and aggregates them together to build the proxy configuration. These resources can be sourced from Kubernetes (via watches), files, or over xDS; Kubernetes is by far the most common usage, though.

Primarily for historical reasons, ingestion is split into a few components.

#### ConfigStore

  // "ci-cd". The set of fields is always in the version that the
  // workflow used when modifying the object.
  //
  // +optional
  repeated ManagedFieldsEntry managedFields = 17;
}

// OwnerReference contains enough information to let you identify an owning
// object. An owning object must be in the same namespace as the dependent, or
// be cluster-scoped, so there is no namespace field.
// +structType=atomic
message OwnerReference {

        If you are unable to do so, please ensure you have collected the relevant debugging information manually and attached below;
        issue without enough information will not be resolvable.
  - type: checkboxes
    id: area
    attributes:
      label: Affected product area
      options:
      - label: "Ambient"
      - label: "Docs"
      - label: "Dual Stack"

**`kclient.Client`** is a higher level wrapper around a Kubernetes resource, and is built up of sub-parts `kclient.Reader`, `kclient.Writer`, and `kclient.Informer`.
Typically, the whole `kclient.Client` is used,though.

Functionality offered by `kclient` includes:
* Typed clients (via generics) and more ergonomic APIs
* Ability to make a _delayed_ client. This is used when making clients based on CRDs that may not exist.

	})
	if err != nil {
		return types.NamespacedName{}, err
	}
	pods := slices.Reference(podsr.Items)
	if len(pods) > 0 {
		// We need to pass in a sorter, and the one used by `kubectl logs` is good enough.
		sortBy := func(pods []*corev1.Pod) sort.Interface { return podutils.ByLogging(pods) }
		sort.Sort(sortBy(pods))
		return config.NamespacedName(pods[0]), nil
	}

  optional MetricValueStatus current = 2;

  // container is the name of the container in the pods of the scaling target
  optional string container = 3;
}

// CrossVersionObjectReference contains enough information to let you identify the referred resource.
message CrossVersionObjectReference {

  // container is the name of the container in the pods of the scaling taget
  optional string container = 4;
}

// CrossVersionObjectReference contains enough information to let you identify the referred resource.
// +structType=atomic
message CrossVersionObjectReference {