[CARRY] address gc queue problem

Signed-off-by: Per Goncalves da Silva <[email protected]>

staging/operator-lifecycle-manager/pkg/controller/operators/olm/operator.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"github.com/operator-framework/operator-lifecycle-manager/pkg/lib/controller-runtime/client"
 	"strings"
 	"time"
 
@@ -896,7 +897,7 @@ func (a *Operator) syncObject(obj interface{}) (syncError error) {
 		} else {
 			switch metaObj.(type) {
 			case *rbacv1.ClusterRole, *rbacv1.ClusterRoleBinding, *admissionregistrationv1.MutatingWebhookConfiguration, *admissionregistrationv1.ValidatingWebhookConfiguration:
-				if syncError = a.objGCQueueSet.Requeue(metaObj.GetNamespace(), metaObj.GetName()); syncError != nil {
+				if syncError = a.objGCQueueSet.RequeueObject(metaObj.(client.Object)); syncError != nil {
 					logger.WithError(syncError).Warnf("failed to requeue gc event: %s/%s", metaObj.GetNamespace(), metaObj.GetName())
 				}
 				return
@@ -1163,7 +1164,7 @@ func (a *Operator) handleClusterServiceVersionDeletion(obj interface{}) {
 		logger.WithError(err).Warn("cannot list cluster role bindings")
 	}
 	for _, crb := range crbs {
-		if err := a.objGCQueueSet.Requeue(crb.GetNamespace(), crb.GetName()); err != nil {
+		if err := a.objGCQueueSet.RequeueObject(crb); err != nil {
 			logger.WithError(err).Warnf("failed to requeue gc event: %v", crb)
 		}
 	}
@@ -1173,7 +1174,7 @@ func (a *Operator) handleClusterServiceVersionDeletion(obj interface{}) {
 		logger.WithError(err).Warn("cannot list cluster roles")
 	}
 	for _, cr := range crs {
-		if err := a.objGCQueueSet.Requeue(cr.GetNamespace(), cr.GetName()); err != nil {
+		if err := a.objGCQueueSet.RequeueObject(cr); err != nil {
 			logger.WithError(err).Warnf("failed to requeue gc event: %v", cr)
 		}
 	}
@@ -1185,7 +1186,7 @@ func (a *Operator) handleClusterServiceVersionDeletion(obj interface{}) {
 	}
 	for _, webhook := range mWebhooks.Items {
 		w := webhook
-		if err := a.objGCQueueSet.Requeue(w.GetNamespace(), w.GetName()); err != nil {
+		if err := a.objGCQueueSet.RequeueObject(&w); err != nil {
 			logger.WithError(err).Warnf("failed to requeue gc event: %v", webhook)
 		}
 	}
@@ -1196,7 +1197,7 @@ func (a *Operator) handleClusterServiceVersionDeletion(obj interface{}) {
 	}
 	for _, webhook := range vWebhooks.Items {
 		w := webhook
-		if err := a.objGCQueueSet.Requeue(w.GetNamespace(), w.GetName()); err != nil {
+		if err := a.objGCQueueSet.RequeueObject(&w); err != nil {
 			logger.WithError(err).Warnf("failed to requeue gc event: %v", webhook)
 		}
 	}

staging/operator-lifecycle-manager/pkg/lib/queueinformer/config.go

@@ -51,8 +51,6 @@ func (c *queueInformerConfig) validateQueueInformer() (err error) {
 		err = newInvalidConfigError("nil logger")
 	case config.queue == nil:
 		err = newInvalidConfigError("nil queue")
-	case config.indexer == nil:
-		err = newInvalidConfigError("nil indexer")
 	case config.syncer == nil:
 		err = newInvalidConfigError("nil syncer")
 	}

staging/operator-lifecycle-manager/pkg/lib/queueinformer/queueinformer_operator.go

@@ -281,36 +281,41 @@ func (o *operator) processNextWorkItem(ctx context.Context, loop *QueueInformer)
 	logger := o.logger.WithField("item", item)
 	logger.WithField("queue-length", queue.Len()).Trace("popped queue")
 
-	typedItem, ok := item.(types.NamespacedName)
-	if !ok {
-		panic(fmt.Sprintf("item %T is not a NamespacedName", item))
-	}
-	key := keyForNamespacedName(typedItem)
-	logger = logger.WithField("cache-key", key)
-
-	// Get the current cached version of the resource
-	var exists bool
-	var err error
-	resource, exists, err := loop.indexer.GetByKey(key)
-	if err != nil {
-		logger.WithError(err).Error("cache get failed")
-		queue.Forget(item)
-		return true
-	}
-	if !exists {
-		logger.WithField("existing-cache-keys", loop.indexer.ListKeys()).Debug("cache get failed, key not in cache")
-		queue.Forget(item)
-		return true
-	}
-	obj, ok := resource.(client.Object)
-	if !ok {
-		logger.Warn("cached object is not a kubernetes resource (client.Object)")
-		queue.Forget(item)
-		return true
+	var obj client.Object
+	switch typedItem := item.(type) {
+	case types.NamespacedName:
+		key := keyForNamespacedName(typedItem)
+		logger = logger.WithField("cache-key", key)
+
+		// Get the current cached version of the resource
+		var exists bool
+		var err error
+		resource, exists, err := loop.indexer.GetByKey(key)
+		if err != nil {
+			logger.WithError(err).Error("cache get failed")
+			queue.Forget(item)
+			return true
+		}
+		if !exists {
+			logger.WithField("existing-cache-keys", loop.indexer.ListKeys()).Debug("cache get failed, key not in cache")
+			queue.Forget(item)
+			return true
+		}
+		var ok bool
+		obj, ok = resource.(client.Object)
+		if !ok {
+			logger.Warn("cached object is not a kubernetes resource (client.Object)")
+			queue.Forget(item)
+			return true
+		}
+	case client.Object:
+		obj = typedItem
+	default:
+		panic(fmt.Sprintf("unexpected item type %T", item))
 	}
 
 	// Sync and requeue on error
-	err = loop.Sync(ctx, obj)
+	err := loop.Sync(ctx, obj)
 	if requeues := queue.NumRequeues(item); err != nil && requeues < 8 {
 		logger.WithField("requeues", requeues).Trace("requeuing with rate limiting")
 		utilruntime.HandleError(errors.Wrap(err, fmt.Sprintf("sync %q failed", item)))

staging/operator-lifecycle-manager/pkg/lib/queueinformer/resourcequeue.go

@@ -2,6 +2,7 @@ package queueinformer
 
 import (
 	"fmt"
+	"github.com/operator-framework/operator-lifecycle-manager/pkg/lib/controller-runtime/client"
 	"k8s.io/apimachinery/pkg/types"
 	"sync"
 	"time"
@@ -39,6 +40,14 @@ func (r *ResourceQueueSet) Set(key string, queue workqueue.RateLimitingInterface
 	r.queueSet[key] = queue
 }
 
+// RequeueObject requeues a client object
+func (r *ResourceQueueSet) RequeueObject(obj client.Object) error {
+	if queue, ok := r.queueSet[obj.GetNamespace()]; ok {
+		queue.Add(obj)
+	}
+	return nil
+}
+
 // Requeue requeues the resource in the set with the given name and namespace
 func (r *ResourceQueueSet) Requeue(namespace, name string) error {
 	r.mutex.RLock()