add configurable pagination to nfd-gc

Author: ivelichkovich

cmd/nfd-gc/main.go

@@ -85,6 +85,8 @@ func initFlags(flagset *flag.FlagSet) *nfdgarbagecollector.Args {
 		"Kubeconfig to use")
 	flagset.IntVar(&args.Port, "port", 8080,
 		"Port which metrics and healthz endpoints are served on")
+	flagset.Int64Var(&args.ListSize, "list-size", 200,
+		"the pagination size used when listing node features")
 
 	klog.InitFlags(flagset)
 

pkg/nfd-gc/nfd-gc.go

@@ -52,6 +52,7 @@ type Args struct {
 	GCPeriod   time.Duration
 	Kubeconfig string
 	Port       int
+	ListSize   int64
 }
 
 type NfdGarbageCollector interface {
@@ -162,7 +163,7 @@ func (n *nfdGarbageCollector) garbageCollect() {
 
 	listAndHandle := func(gvr schema.GroupVersionResource, handler func(metav1.PartialObjectMetadata)) {
 		opts := metav1.ListOptions{
-			Limit: 200,
+			Limit: n.args.ListSize,
 		}
 		for {
 			rsp, err := n.client.Resource(gvr).List(context.TODO(), opts)