This works out to be more efficient in common cases where policies change much less often than workloads.
This only applies for selector-based policies; namespaced and global policies can be handled without needing to list them out in the Workload API.

## Redirection

                description: Determines ordering of `WasmPlugins` in the same `phase`.
                format: int32
                nullable: true
                type: integer
              selector:
                description: Criteria used to select the specific set of pods/VMs
                  on which this plugin configuration should be applied.
                properties:
                  matchLabels:

// GetFirstPod returns a pod matching the namespace and label selector
// and the number of all pods that match the label selector.
// This is forked from  polymorphichelpers.GetFirstPod to not watch and instead return an error if no pods are found
func GetFirstPod(client v1.CoreV1Interface, namespace string, selector string) (*corev1.Pod, error) {
	options := metav1.ListOptions{LabelSelector: selector}

  // on whether the namespace for that object matches the selector. If the
  // object itself is a namespace, the matching is performed on
  // object.metadata.labels. If the object is another cluster scoped resource,
  // it never skips the webhook.
  //
  // For example, to run the webhook on any objects whose namespace is not
  // associated with "runlevel" of "0" or "1";  you will set the selector as
  // follows:
  // "namespaceSelector": {

  // budget.
  // A null selector selects no pods.
  // An empty selector ({}) also selects no pods, which differs from standard behavior of selecting all pods.
  // In policy/v1, an empty selector will select all pods in the namespace.
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector selector = 2;

  // An eviction is allowed if at most "maxUnavailable" pods selected by

		nsMatchedLabels := make([]string, 0)
		podMatchedLabels := make([]string, 0)
		extractMatchLabels := func(selector *metav1.LabelSelector) []string {
			if selector == nil {
				return nil
			}
			labels := make([]string, 0)
			for _, me := range selector.MatchExpressions {
				if me.Operator != metav1.LabelSelectorOpIn {
					continue
				}
				for _, v := range me.Values {

  // on whether the namespace for that object matches the selector. If the
  // object itself is a namespace, the matching is performed on
  // object.metadata.labels. If the object is another cluster scoped resource,
  // it never skips the webhook.
  //
  // For example, to run the webhook on any objects whose namespace is not
  // associated with "runlevel" of "0" or "1";  you will set the selector as
  // follows:
  // "namespaceSelector": {

{{ toYaml $gateway.loadBalancerSourceRanges | indent 4 }}
{{- end }}
{{- if $gateway.externalTrafficPolicy }}
  externalTrafficPolicy: {{$gateway.externalTrafficPolicy }}
{{- end }}
  type: {{ $gateway.type }}
  selector:
{{ $gateway.labels | toYaml | indent 4 }}
  ports:

    {{- range $key, $val := $gateway.ports }}
    -
      {{- range $pkey, $pval := $val }}
      {{ $pkey}}: {{ $pval }}
      {{- end }}
    {{- end }}

      ) | nindent 4 }}
  ownerReferences:
  - apiVersion: gateway.networking.k8s.io/v1beta1
    kind: Gateway
    name: "{{.Name}}"
    uid: "{{.UID}}"
spec:
  selector:
    matchLabels:
      "{{.GatewayNameLabel}}": "{{.Name}}"
  template:
    metadata:
      annotations:
        {{- toJsonMap

    install.operator.istio.io/owning-resource: {{ .Values.ownerName | default "unknown" }}
    operator.istio.io/component: "IngressGateways"
spec:
  minAvailable: 1
  selector:
    matchLabels:
{{ $gateway.labels | toYaml | trim | indent 6 }}