Merge pull request #57508 from chechiachang/enable-label-selector-for…

…-client-go-listwatch

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Enable list option modification when create list watch

**What this PR does / why we need it**:
metav1.ListOptions support both field selector and label selector, but the current NewListWatchFromClient in client-go only support field selector.
 It would be helpful to use label selector in client-go.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
None
```

staging/src/k8s.io/client-go/tools/cache/listwatch.go

@@ -63,8 +63,18 @@ type Getter interface {
 
 // NewListWatchFromClient creates a new ListWatch from the specified client, resource, namespace and field selector.
 func NewListWatchFromClient(c Getter, resource string, namespace string, fieldSelector fields.Selector) *ListWatch {
-	listFunc := func(options metav1.ListOptions) (runtime.Object, error) {
+	optionsModifier := func(options *metav1.ListOptions) {
 		options.FieldSelector = fieldSelector.String()
+	}
+	return NewFilteredListWatchFromClient(c, resource, namespace, optionsModifier)
+}
+
+// NewFilteredListWatchFromClient creates a new ListWatch from the specified client, resource, namespace, and option modifier.
+// Option modifier is a function takes a ListOptions and modifies the consumed ListOptions. Provide customized modifier function
+// to apply modification to ListOptions with a field selector, a label selector, or any other desired options.
+func NewFilteredListWatchFromClient(c Getter, resource string, namespace string, optionsModifier func(options *metav1.ListOptions)) *ListWatch {
+	listFunc := func(options metav1.ListOptions) (runtime.Object, error) {
+		optionsModifier(&options)
 		return c.Get().
 			Namespace(namespace).
 			Resource(resource).
@@ -74,7 +84,7 @@ func NewListWatchFromClient(c Getter, resource string, namespace string, fieldSe
 	}
 	watchFunc := func(options metav1.ListOptions) (watch.Interface, error) {
 		options.Watch = true
-		options.FieldSelector = fieldSelector.String()
+		optionsModifier(&options)
 		return c.Get().
 			Namespace(namespace).
 			Resource(resource).