chore(deps): upgrade k8s version and client-go (argoproj#15852)

* chore(deps): upgrade k8s version and client-go Signed-off-by: fengshunli <1171313930@qq.com> * revert bad merge Signed-off-by: Michael Crenshaw <350466+crenshaw-dev@users.noreply.github.com> * fix codegen Signed-off-by: Michael Crenshaw <350466+crenshaw-dev@users.noreply.github.com> * fix codegen Signed-off-by: Michael Crenshaw <350466+crenshaw-dev@users.noreply.github.com> * fix: check for double definition As found in argoproj#13965 (and as a follow-up to argoproj#13999), we also need to define what happens if _both_ managedNamespaceMetadata _and_ an Application manifest are both defined for the same namespace. The idea here is that if that happens, we emit an `ApplicationConditionRepeatedResourceWarning`, and set the sync status to `Unknown`, since it's unclear what is supposed to happen. The user will then have the option of removing one of the two definitions. Signed-off-by: Blake Pettersson <blake.pettersson@gmail.com> * fix: check for double definition A simpler fix - don't add a managed namespace to the targetObjs list if a namespace already exists in the application source. Signed-off-by: Blake Pettersson <blake.pettersson@gmail.com> * build: extra space in doc Signed-off-by: Blake Pettersson <blake.pettersson@gmail.com> * build: extra space in doc, again Signed-off-by: Blake Pettersson <blake.pettersson@gmail.com> * chore: bump gitops-engine Signed-off-by: Blake Pettersson <blake.pettersson@gmail.com> --------- Signed-off-by: fengshunli <1171313930@qq.com> Signed-off-by: Michael Crenshaw <350466+crenshaw-dev@users.noreply.github.com> Signed-off-by: Blake Pettersson <blake.pettersson@gmail.com> Co-authored-by: fengshunli <1171313930@qq.com> Co-authored-by: Michael Crenshaw <350466+crenshaw-dev@users.noreply.github.com> Signed-off-by: jmilic1 <70441727+jmilic1@users.noreply.github.com>
jmilic1 · Nov 13, 2023 · e02f7f4 · e02f7f4
1 parent 6e26a32
commit e02f7f4
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Showing 82 changed files with 446 additions and 579 deletions.
diff --git a/applicationset/controllers/applicationset_controller.go b/applicationset/controllers/applicationset_controller.go
@@ -544,22 +544,24 @@ func ignoreNotAllowedNamespaces(namespaces []string) predicate.Predicate {
 	}
 }
 
-func (r *ApplicationSetReconciler) SetupWithManager(mgr ctrl.Manager, enableProgressiveSyncs bool, maxConcurrentReconciliations int) error {
-	if err := mgr.GetFieldIndexer().IndexField(context.TODO(), &argov1alpha1.Application{}, ".metadata.controller", func(rawObj client.Object) []string {
-		// grab the job object, extract the owner...
-		app := rawObj.(*argov1alpha1.Application)
-		owner := metav1.GetControllerOf(app)
-		if owner == nil {
-			return nil
-		}
-		// ...make sure it's a application set...
-		if owner.APIVersion != argov1alpha1.SchemeGroupVersion.String() || owner.Kind != "ApplicationSet" {
-			return nil
-		}
+func appControllerIndexer(rawObj client.Object) []string {
+	// grab the job object, extract the owner...
+	app := rawObj.(*argov1alpha1.Application)
+	owner := metav1.GetControllerOf(app)
+	if owner == nil {
+		return nil
+	}
+	// ...make sure it's a application set...
+	if owner.APIVersion != argov1alpha1.SchemeGroupVersion.String() || owner.Kind != "ApplicationSet" {
+		return nil
+	}
 
-		// ...and if so, return it
-		return []string{owner.Name}
-	}); err != nil {
+	// ...and if so, return it
+	return []string{owner.Name}
+}
+
+func (r *ApplicationSetReconciler) SetupWithManager(mgr ctrl.Manager, enableProgressiveSyncs bool, maxConcurrentReconciliations int) error {
+	if err := mgr.GetFieldIndexer().IndexField(context.TODO(), &argov1alpha1.Application{}, ".metadata.controller", appControllerIndexer); err != nil {
 		return fmt.Errorf("error setting up with manager: %w", err)
 	}
 

diff --git a/applicationset/controllers/applicationset_controller_test.go b/applicationset/controllers/applicationset_controller_test.go
@@ -994,7 +994,7 @@ func TestCreateOrUpdateInCluster(t *testing.T) {
 				initObjs = append(initObjs, &a)
 			}
 
-			client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(initObjs...).Build()
+			client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(initObjs...).WithIndex(&v1alpha1.Application{}, ".metadata.controller", appControllerIndexer).Build()
 
 			r := ApplicationSetReconciler{
 				Client:   client,
@@ -1088,7 +1088,7 @@ func TestRemoveFinalizerOnInvalidDestination_FinalizerTypes(t *testing.T) {
 
 			initObjs := []crtclient.Object{&app, &appSet}
 
-			client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(initObjs...).Build()
+			client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(initObjs...).WithIndex(&v1alpha1.Application{}, ".metadata.controller", appControllerIndexer).Build()
 			secret := &corev1.Secret{
 				ObjectMeta: metav1.ObjectMeta{
 					Name:      "my-secret",
@@ -1250,7 +1250,7 @@ func TestRemoveFinalizerOnInvalidDestination_DestinationTypes(t *testing.T) {
 
 			initObjs := []crtclient.Object{&app, &appSet}
 
-			client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(initObjs...).Build()
+			client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(initObjs...).WithIndex(&v1alpha1.Application{}, ".metadata.controller", appControllerIndexer).Build()
 			secret := &corev1.Secret{
 				ObjectMeta: metav1.ObjectMeta{
 					Name:      "my-secret",
@@ -1482,7 +1482,7 @@ func TestCreateApplications(t *testing.T) {
 				initObjs = append(initObjs, &a)
 			}
 
-			client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(initObjs...).Build()
+			client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(initObjs...).WithIndex(&v1alpha1.Application{}, ".metadata.controller", appControllerIndexer).Build()
 
 			r := ApplicationSetReconciler{
 				Client:   client,
@@ -1626,7 +1626,7 @@ func TestDeleteInCluster(t *testing.T) {
 			initObjs = append(initObjs, &temp)
 		}
 
-		client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(initObjs...).Build()
+		client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(initObjs...).WithIndex(&v1alpha1.Application{}, ".metadata.controller", appControllerIndexer).Build()
 
 		r := ApplicationSetReconciler{
 			Client:        client,
@@ -2000,7 +2000,15 @@ func TestReconcilerValidationProjectErrorBehaviour(t *testing.T) {
 	argoDBMock := dbmocks.ArgoDB{}
 	argoObjs := []runtime.Object{&project}
 
-	client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(&appSet).Build()
+	client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(&appSet).WithIndex(&v1alpha1.Application{}, ".metadata.controller", appControllerIndexer).Build()
+	goodCluster := v1alpha1.Cluster{Server: "https://good-cluster", Name: "good-cluster"}
+	badCluster := v1alpha1.Cluster{Server: "https://bad-cluster", Name: "bad-cluster"}
+	argoDBMock.On("GetCluster", mock.Anything, "https://good-cluster").Return(&goodCluster, nil)
+	argoDBMock.On("GetCluster", mock.Anything, "https://bad-cluster").Return(&badCluster, nil)
+	argoDBMock.On("ListClusters", mock.Anything).Return(&v1alpha1.ClusterList{Items: []v1alpha1.Cluster{
+		goodCluster,
+	}}, nil)
+
 	r := ApplicationSetReconciler{
 		Client:   client,
 		Scheme:   scheme,
@@ -2076,7 +2084,7 @@ func TestSetApplicationSetStatusCondition(t *testing.T) {
 	argoDBMock := dbmocks.ArgoDB{}
 	argoObjs := []runtime.Object{}
 
-	client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(&appSet).Build()
+	client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(&appSet).WithIndex(&v1alpha1.Application{}, ".metadata.controller", appControllerIndexer).Build()
 
 	r := ApplicationSetReconciler{
 		Client:   client,
@@ -2146,7 +2154,7 @@ func applicationsUpdateSyncPolicyTest(t *testing.T, applicationsSyncPolicy v1alp
 	argoDBMock := dbmocks.ArgoDB{}
 	argoObjs := []runtime.Object{&defaultProject}
 
-	client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(&appSet).Build()
+	client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(&appSet).WithIndex(&v1alpha1.Application{}, ".metadata.controller", appControllerIndexer).Build()
 	goodCluster := v1alpha1.Cluster{Server: "https://good-cluster", Name: "good-cluster"}
 	argoDBMock.On("GetCluster", mock.Anything, "https://good-cluster").Return(&goodCluster, nil)
 	argoDBMock.On("ListClusters", mock.Anything).Return(&v1alpha1.ClusterList{Items: []v1alpha1.Cluster{
@@ -2316,7 +2324,7 @@ func applicationsDeleteSyncPolicyTest(t *testing.T, applicationsSyncPolicy v1alp
 	argoDBMock := dbmocks.ArgoDB{}
 	argoObjs := []runtime.Object{&defaultProject}
 
-	client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(&appSet).Build()
+	client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(&appSet).WithIndex(&v1alpha1.Application{}, ".metadata.controller", appControllerIndexer).Build()
 	goodCluster := v1alpha1.Cluster{Server: "https://good-cluster", Name: "good-cluster"}
 	argoDBMock.On("GetCluster", mock.Anything, "https://good-cluster").Return(&goodCluster, nil)
 	argoDBMock.On("ListClusters", mock.Anything).Return(&v1alpha1.ClusterList{Items: []v1alpha1.Cluster{
@@ -2627,7 +2635,7 @@ func TestPolicies(t *testing.T) {
 				},
 			}
 
-			client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(&appSet).Build()
+			client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(&appSet).WithIndex(&v1alpha1.Application{}, ".metadata.controller", appControllerIndexer).Build()
 
 			r := ApplicationSetReconciler{
 				Client:   client,

diff --git a/applicationset/utils/clusterUtils.go b/applicationset/utils/clusterUtils.go
@@ -180,7 +180,7 @@ func secretToCluster(s *corev1.Secret) (*appv1.Cluster, error) {
 		if val, err := strconv.Atoi(string(shardStr)); err != nil {
 			log.Warnf("Error while parsing shard in cluster secret '%s': %v", s.Name, err)
 		} else {
-			shard = pointer.Int64Ptr(int64(val))
+			shard = pointer.Int64(int64(val))
 		}
 	}
 	cluster := appv1.Cluster{

diff --git a/assets/swagger.json b/assets/swagger.json
@@ -5089,7 +5089,7 @@
       }
     },
     "runtimeRawExtension": {
-      "description": "RawExtension is used to hold extensions in external versions.\n\nTo use this, make a field which has RawExtension as its type in your external, versioned\nstruct, and Object in your internal struct. You also need to register your\nvarious plugin types.\n\n// Internal package:\ntype MyAPIObject struct {\n\truntime.TypeMeta `json:\",inline\"`\n\tMyPlugin runtime.Object `json:\"myPlugin\"`\n}\ntype PluginA struct {\n\tAOption string `json:\"aOption\"`\n}\n\n// External package:\ntype MyAPIObject struct {\n\truntime.TypeMeta `json:\",inline\"`\n\tMyPlugin runtime.RawExtension `json:\"myPlugin\"`\n}\ntype PluginA struct {\n\tAOption string `json:\"aOption\"`\n}\n\n// On the wire, the JSON will look something like this:\n{\n\t\"kind\":\"MyAPIObject\",\n\t\"apiVersion\":\"v1\",\n\t\"myPlugin\": {\n\t\t\"kind\":\"PluginA\",\n\t\t\"aOption\":\"foo\",\n\t},\n}\n\nSo what happens? Decode first uses json or yaml to unmarshal the serialized data into\nyour external MyAPIObject. That causes the raw JSON to be stored, but not unpacked.\nThe next step is to copy (using pkg/conversion) into the internal struct. The runtime\npackage's DefaultScheme has conversion functions installed which will unpack the\nJSON stored in RawExtension, turning it into the correct object type, and storing it\nin the Object. (TODO: In the case where the object is of an unknown type, a\nruntime.Unknown object will be created and stored.)\n\n+k8s:deepcopy-gen=true\n+protobuf=true\n+k8s:openapi-gen=true",
+      "description": "RawExtension is used to hold extensions in external versions.\n\nTo use this, make a field which has RawExtension as its type in your external, versioned\nstruct, and Object in your internal struct. You also need to register your\nvarious plugin types.\n\n// Internal package:\n\n\ttype MyAPIObject struct {\n\t\truntime.TypeMeta `json:\",inline\"`\n\t\tMyPlugin runtime.Object `json:\"myPlugin\"`\n\t}\n\n\ttype PluginA struct {\n\t\tAOption string `json:\"aOption\"`\n\t}\n\n// External package:\n\n\ttype MyAPIObject struct {\n\t\truntime.TypeMeta `json:\",inline\"`\n\t\tMyPlugin runtime.RawExtension `json:\"myPlugin\"`\n\t}\n\n\ttype PluginA struct {\n\t\tAOption string `json:\"aOption\"`\n\t}\n\n// On the wire, the JSON will look something like this:\n\n\t{\n\t\t\"kind\":\"MyAPIObject\",\n\t\t\"apiVersion\":\"v1\",\n\t\t\"myPlugin\": {\n\t\t\t\"kind\":\"PluginA\",\n\t\t\t\"aOption\":\"foo\",\n\t\t},\n\t}\n\nSo what happens? Decode first uses json or yaml to unmarshal the serialized data into\nyour external MyAPIObject. That causes the raw JSON to be stored, but not unpacked.\nThe next step is to copy (using pkg/conversion) into the internal struct. The runtime\npackage's DefaultScheme has conversion functions installed which will unpack the\nJSON stored in RawExtension, turning it into the correct object type, and storing it\nin the Object. (TODO: In the case where the object is of an unknown type, a\nruntime.Unknown object will be created and stored.)\n\n+k8s:deepcopy-gen=true\n+protobuf=true\n+k8s:openapi-gen=true",
       "type": "object",
       "properties": {
         "raw": {
@@ -5496,10 +5496,6 @@
             "type": "string"
           }
         },
-        "clusterName": {
-          "description": "Deprecated: ClusterName is a legacy field that was always cleared by\nthe system and never used; it will be removed completely in 1.25.\n\nThe name in the go struct is changed to help clients detect\naccidental use.\n\n+optional",
-          "type": "string"
-        },
         "creationTimestamp": {
           "$ref": "#/definitions/v1Time"
         },
@@ -5571,8 +5567,8 @@
       }
     },
     "v1ObjectReference": {
+      "description": "ObjectReference contains enough information to let you inspect or modify the referred object.\n---\nNew uses of this type are discouraged because of difficulty describing its usage when embedded in APIs.\n 1. Ignored fields.  It includes many fields which are not generally honored.  For instance, ResourceVersion and FieldPath are both very rarely valid in actual usage.\n 2. Invalid usage help.  It is impossible to add specific help for individual usage.  In most embedded usages, there are particular\n    restrictions like, \"must refer only to types A and B\" or \"UID not honored\" or \"name must be restricted\".\n    Those cannot be well described when embedded.\n 3. Inconsistent validation.  Because the usages are different, the validation rules are different by usage, which makes it hard for users to predict what will happen.\n 4. The fields are both imprecise and overly precise.  Kind is not a precise mapping to a URL. This can produce ambiguity\n    during interpretation and require a REST mapping.  In most cases, the dependency is on the group,resource tuple\n    and the version of the actual struct is irrelevant.\n 5. We cannot easily change it.  Because this type is embedded in many locations, updates to this type\n    will affect numerous schemas.  Don't make new APIs embed an underspecified API type they do not control.\n\nInstead of using this type, create a locally provided and used type that is well-focused on your reference.\nFor example, ServiceReferences for admission registration: https://github.com/kubernetes/api/blob/release-1.17/admissionregistration/v1/types.go#L533 .\n+k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object\n+structType=atomic",
       "type": "object",
-      "title": "ObjectReference contains enough information to let you inspect or modify the referred object.\n---\nNew uses of this type are discouraged because of difficulty describing its usage when embedded in APIs.\n 1. Ignored fields.  It includes many fields which are not generally honored.  For instance, ResourceVersion and FieldPath are both very rarely valid in actual usage.\n 2. Invalid usage help.  It is impossible to add specific help for individual usage.  In most embedded usages, there are particular\n    restrictions like, \"must refer only to types A and B\" or \"UID not honored\" or \"name must be restricted\".\n    Those cannot be well described when embedded.\n 3. Inconsistent validation.  Because the usages are different, the validation rules are different by usage, which makes it hard for users to predict what will happen.\n 4. The fields are both imprecise and overly precise.  Kind is not a precise mapping to a URL. This can produce ambiguity\n    during interpretation and require a REST mapping.  In most cases, the dependency is on the group,resource tuple\n    and the version of the actual struct is irrelevant.\n 5. We cannot easily change it.  Because this type is embedded in many locations, updates to this type\n    will affect numerous schemas.  Don't make new APIs embed an underspecified API type they do not control.\nInstead of using this type, create a locally provided and used type that is well-focused on your reference.\nFor example, ServiceReferences for admission registration: https://github.com/kubernetes/api/blob/release-1.17/admissionregistration/v1/types.go#L533 .\n+k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object\n+structType=atomic",
       "properties": {
         "apiVersion": {
           "type": "string",

diff --git a/cmd/argocd/commands/admin/cluster.go b/cmd/argocd/commands/admin/cluster.go
@@ -124,7 +124,7 @@ func loadClusters(ctx context.Context, kubeClient *kubernetes.Clientset, appClie
 			if replicas > 0 {
 				distributionFunction := sharding.GetDistributionFunction(argoDB, common.DefaultShardingAlgorithm)
 				distributionFunction(&cluster)
-				cluster.Shard = pointer.Int64Ptr(int64(clusterShard))
+				cluster.Shard = pointer.Int64(int64(clusterShard))
 				log.Infof("Cluster with uid: %s will be processed by shard %d", cluster.ID, clusterShard)
 			}
 

diff --git a/cmd/argocd/commands/app.go b/cmd/argocd/commands/app.go
@@ -524,8 +524,8 @@ func NewApplicationLogsCommand(clientOpts *argocdclient.ClientOptions) *cobra.Co
 					} else {
 						return
 					}
-				} //Done with receive message
-			} //Done with retry
+				} // Done with receive message
+			} // Done with retry
 		},
 	}
 
@@ -889,7 +889,7 @@ func unset(source *argoappv1.ApplicationSource, opts unsetOpts) (updated bool, n
 			for i, item := range source.Kustomize.Images {
 				if argoappv1.KustomizeImage(kustomizeImage).Match(item) {
 					updated = true
-					//remove i
+					// remove i
 					a := source.Kustomize.Images
 					copy(a[i:], a[i+1:]) // Shift a[i+1:] left one index.
 					a[len(a)-1] = ""     // Erase last element (write zero value).
@@ -1904,7 +1904,7 @@ func NewApplicationSyncCommand(clientOpts *argocdclient.ClientOptions) *cobra.Co
 						Backoff: &argoappv1.Backoff{
 							Duration:    retryBackoffDuration.String(),
 							MaxDuration: retryBackoffMaxDuration.String(),
-							Factor:      pointer.Int64Ptr(retryBackoffFactor),
+							Factor:      pointer.Int64(retryBackoffFactor),
 						},
 					}
 				}
@@ -2143,7 +2143,7 @@ func checkResourceStatus(watch watchOpts, healthStatus string, syncStatus string
 	} else if watch.degraded && watch.health {
 		healthCheckPassed = healthStatus == string(health.HealthStatusHealthy) ||
 			healthStatus == string(health.HealthStatusDegraded)
-		//below are good
+		// below are good
 	} else if watch.suspended && watch.health {
 		healthCheckPassed = healthStatus == string(health.HealthStatusHealthy) ||
 			healthStatus == string(health.HealthStatusSuspended)

diff --git a/cmd/util/app.go b/cmd/util/app.go
@@ -295,7 +295,7 @@ func SetAppSpecOptions(flags *pflag.FlagSet, spec *argoappv1.ApplicationSpec, ap
 					Backoff: &argoappv1.Backoff{
 						Duration:    appOpts.retryBackoffDuration.String(),
 						MaxDuration: appOpts.retryBackoffMaxDuration.String(),
-						Factor:      pointer.Int64Ptr(appOpts.retryBackoffFactor),
+						Factor:      pointer.Int64(appOpts.retryBackoffFactor),
 					},
 				}
 			} else if appOpts.retryLimit == 0 {

diff --git a/cmd/util/project.go b/cmd/util/project.go
@@ -115,7 +115,7 @@ func GetOrphanedResourcesSettings(flagSet *pflag.FlagSet, opts ProjectOpts) *v1a
 	if opts.orphanedResourcesEnabled || warnChanged {
 		settings := v1alpha1.OrphanedResourcesMonitorSettings{}
 		if warnChanged {
-			settings.Warn = pointer.BoolPtr(opts.orphanedResourcesWarn)
+			settings.Warn = pointer.Bool(opts.orphanedResourcesWarn)
 		}
 		return &settings
 	}

diff --git a/controller/appcontroller.go b/controller/appcontroller.go
@@ -181,7 +181,8 @@ func NewApplicationController(
 	appInformer, appLister := ctrl.newApplicationInformerAndLister()
 	indexers := cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}
 	projInformer := v1alpha1.NewAppProjectInformer(applicationClientset, namespace, appResyncPeriod, indexers)
-	projInformer.AddEventHandler(cache.ResourceEventHandlerFuncs{
+	var err error
+	_, err = projInformer.AddEventHandler(cache.ResourceEventHandlerFuncs{
 		AddFunc: func(obj interface{}) {
 			if key, err := cache.MetaNamespaceKeyFunc(obj); err == nil {
 				ctrl.projectRefreshQueue.Add(key)
@@ -208,6 +209,9 @@ func NewApplicationController(
 			}
 		},
 	})
+	if err != nil {
+		return nil, err
+	}
 
 	factory := informers.NewSharedInformerFactoryWithOptions(ctrl.kubeClientset, defaultDeploymentInformerResyncDuration, informers.WithNamespace(settingsMgr.GetNamespace()))
 	deploymentInformer := factory.Apps().V1().Deployments()
@@ -235,7 +239,7 @@ func NewApplicationController(
 	}
 
 	metricsAddr := fmt.Sprintf("0.0.0.0:%d", metricsPort)
-	var err error
+
 	ctrl.metricsServer, err = metrics.NewMetricsServer(metricsAddr, appLister, ctrl.canProcessApp, readinessHealthCheck, metricsApplicationLabels)
 	if err != nil {
 		return nil, err
@@ -1569,7 +1573,7 @@ func (ctrl *ApplicationController) needRefreshAppStatus(app *appv1.Application,
 		} else if hardExpired || softExpired {
 			// The commented line below mysteriously crashes if app.Status.ReconciledAt is nil
 			// reason = fmt.Sprintf("comparison expired. reconciledAt: %v, expiry: %v", app.Status.ReconciledAt, statusRefreshTimeout)
-			//TODO: find existing Golang bug or create a new one
+			// TODO: find existing Golang bug or create a new one
 			reconciledAtStr := "never"
 			if app.Status.ReconciledAt != nil {
 				reconciledAtStr = app.Status.ReconciledAt.String()
@@ -1979,7 +1983,7 @@ func (ctrl *ApplicationController) newApplicationInformerAndLister() (cache.Shar
 		},
 	)
 	lister := applisters.NewApplicationLister(informer.GetIndexer())
-	informer.AddEventHandler(
+	_, err := informer.AddEventHandler(
 		cache.ResourceEventHandlerFuncs{
 			AddFunc: func(obj interface{}) {
 				if !ctrl.canProcessApp(obj) {
@@ -2023,6 +2027,9 @@ func (ctrl *ApplicationController) newApplicationInformerAndLister() (cache.Shar
 			},
 		},
 	)
+	if err != nil {
+		return nil, nil
+	}
 	return informer, lister
 }