client-go informers: provide ListWatch *WithContext variants

For compatibility reasons, the old functions without the ctx parameter still
get generated, now with context.Background instead of context.TODO. In practice
that code won't be used by the client-go reflector code because it prefers
the *WithContext functions, but it cannot be ruled out that some other code
only supports the old fields.

Author: pohly

staging/src/k8s.io/apiextensions-apiserver/examples/client-go/pkg/client/informers/externalversions/cr/v1/example.go

@@ -153,13 +153,25 @@ func NewFilteredDynamicInformer(client dynamic.Interface, gvr schema.GroupVersio
 					if tweakListOptions != nil {
 						tweakListOptions(&options)
 					}
-					return client.Resource(gvr).Namespace(namespace).List(context.TODO(), options)
+					return client.Resource(gvr).Namespace(namespace).List(context.Background(), options)
 				},
 				WatchFunc: func(options metav1.ListOptions) (watch.Interface, error) {
 					if tweakListOptions != nil {
 						tweakListOptions(&options)
 					}
-					return client.Resource(gvr).Namespace(namespace).Watch(context.TODO(), options)
+					return client.Resource(gvr).Namespace(namespace).Watch(context.Background(), options)
+				},
+				ListWithContextFunc: func(ctx context.Context, options metav1.ListOptions) (runtime.Object, error) {
+					if tweakListOptions != nil {
+						tweakListOptions(&options)
+					}
+					return client.Resource(gvr).Namespace(namespace).List(ctx, options)
+				},
+				WatchFuncWithContext: func(ctx context.Context, options metav1.ListOptions) (watch.Interface, error) {
+					if tweakListOptions != nil {
+						tweakListOptions(&options)
+					}
+					return client.Resource(gvr).Namespace(namespace).Watch(ctx, options)
 				},
 			},
 			&unstructured.Unstructured{},