test/e2e: test scoped indexes and make them actually work

Signed-off-by: Dr. Stefan Schimanski <stefan.schimanski@gmail.com>

Author: sttts

test/e2e/apiexport_test.go

@@ -32,6 +32,7 @@ import (
 	runtimeschema "k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/apimachinery/pkg/util/wait"
+	"k8s.io/client-go/discovery"
 	"k8s.io/client-go/rest"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/reconcile"
@@ -59,11 +60,11 @@ var _ = Describe("VirtualWorkspace Provider", Ordered, func() {
 		ctx    context.Context
 		cancel context.CancelFunc
 
-		cli                clusterclient.ClusterClient
-		provider, consumer logicalcluster.Path
-		consumerWS         *tenancyv1alpha1.Workspace
-		mgr                mcmanager.Manager
-		vwEndpoint         string
+		cli                       clusterclient.ClusterClient
+		provider, consumer, other logicalcluster.Path
+		consumerWS                *tenancyv1alpha1.Workspace
+		mgr                       mcmanager.Manager
+		vwEndpoint                string
 	)
 
 	BeforeAll(func() {
@@ -75,6 +76,7 @@ var _ = Describe("VirtualWorkspace Provider", Ordered, func() {
 
 		_, provider = envtest.NewWorkspaceFixture(GinkgoT(), cli, core.RootCluster.Path(), envtest.WithNamePrefix("provider"))
 		consumerWS, consumer = envtest.NewWorkspaceFixture(GinkgoT(), cli, core.RootCluster.Path(), envtest.WithNamePrefix("consumer"))
+		_, other = envtest.NewWorkspaceFixture(GinkgoT(), cli, core.RootCluster.Path(), envtest.WithNamePrefix("other"))
 
 		By(fmt.Sprintf("creating a schema in the provider workspace %q", provider))
 		schema := &apisv1alpha1.APIResourceSchema{
@@ -130,7 +132,7 @@ var _ = Describe("VirtualWorkspace Provider", Ordered, func() {
 		err = cli.Cluster(provider).Create(ctx, endpoitns)
 		Expect(err).NotTo(HaveOccurred())
 
-		By(fmt.Sprintf("creating an APIBinding in the consumer workspace %q", consumer))
+		By(fmt.Sprintf("creating an APIBinding in the other workspace %q", other))
 		binding := &apisv1alpha1.APIBinding{
 			ObjectMeta: metav1.ObjectMeta{
 				Name: "example.com",
@@ -144,6 +146,23 @@ var _ = Describe("VirtualWorkspace Provider", Ordered, func() {
 				},
 			},
 		}
+		err = cli.Cluster(other).Create(ctx, binding)
+		Expect(err).NotTo(HaveOccurred())
+
+		By(fmt.Sprintf("creating an APIBinding in the consumer workspace %q", consumer))
+		binding = &apisv1alpha1.APIBinding{
+			ObjectMeta: metav1.ObjectMeta{
+				Name: "example.com",
+			},
+			Spec: apisv1alpha1.APIBindingSpec{
+				Reference: apisv1alpha1.BindingReference{
+					Export: &apisv1alpha1.ExportBindingReference{
+						Path: provider.String(),
+						Name: export.Name,
+					},
+				},
+			},
+		}
 		err = cli.Cluster(consumer).Create(ctx, binding)
 		Expect(err).NotTo(HaveOccurred())
 
@@ -187,24 +206,69 @@ var _ = Describe("VirtualWorkspace Provider", Ordered, func() {
 		var (
 			lock        sync.RWMutex
 			engaged     = sets.NewString()
+			p           *virtualworkspace.Provider
 			g           *errgroup.Group
 			cancelGroup context.CancelFunc
 		)
 
 		BeforeAll(func() {
+			By("creating a stone in the consumer workspace", func() {
+				thing := &unstructured.Unstructured{}
+				thing.SetGroupVersionKind(runtimeschema.GroupVersionKind{Group: "example.com", Version: "v1", Kind: "Thing"})
+				thing.SetName("stone")
+				thing.SetLabels(map[string]string{"color": "gray"})
+				err := cli.Cluster(consumer).Create(ctx, thing)
+				Expect(err).NotTo(HaveOccurred())
+			})
+
+			By("creating a box in the other workspace", func() {
+				thing := &unstructured.Unstructured{}
+				thing.SetGroupVersionKind(runtimeschema.GroupVersionKind{Group: "example.com", Version: "v1", Kind: "Thing"})
+				thing.SetName("box")
+				thing.SetLabels(map[string]string{"color": "white"})
+				err := cli.Cluster(other).Create(ctx, thing)
+				Expect(err).NotTo(HaveOccurred())
+			})
+
 			By("creating a multicluster provider for APIBindings against the apiexport virtual workspace")
 			vwConfig := rest.CopyConfig(kcpConfig)
 			vwConfig.Host = vwEndpoint
-			p, err := virtualworkspace.New(vwConfig, &apisv1alpha1.APIBinding{}, virtualworkspace.Options{})
+			var err error
+			p, err = virtualworkspace.New(vwConfig, &apisv1alpha1.APIBinding{}, virtualworkspace.Options{})
 			Expect(err).NotTo(HaveOccurred())
 
+			By("waiting for discovery of the virtual workspace to show 'example.com'")
+			wildcardConfig := rest.CopyConfig(vwConfig)
+			wildcardConfig.Host += logicalcluster.Wildcard.RequestPath()
+			disc, err := discovery.NewDiscoveryClientForConfig(wildcardConfig)
+			Expect(err).NotTo(HaveOccurred())
+			envtest.Eventually(GinkgoT(), func() (bool, string) {
+				ret, err := disc.ServerGroups()
+				Expect(err).NotTo(HaveOccurred())
+				for _, g := range ret.Groups {
+					if g.Name == "example.com" {
+						return true, ""
+					}
+				}
+				return false, fmt.Sprintf("failed to find group example.com in:\n%s", toYAML(GinkgoT(), ret))
+			}, wait.ForeverTestTimeout, time.Millisecond*100, "failed to find group example.com in the virtual workspace")
+
 			By("creating a manager against the provider workspace")
 			rootConfig := rest.CopyConfig(kcpConfig)
 			rootConfig.Host += provider.RequestPath()
 			mgr, err = mcmanager.New(rootConfig, p, mcmanager.Options{})
 			Expect(err).NotTo(HaveOccurred())
 
-			By("creating a reconciler for the APIBinding")
+			By("adding an index on label 'color'")
+			thing := &unstructured.Unstructured{}
+			thing.SetGroupVersionKind(runtimeschema.GroupVersionKind{Group: "example.com", Version: "v1", Kind: "Thing"})
+			err = mgr.GetFieldIndexer().IndexField(ctx, thing, "color", func(obj client.Object) []string {
+				u := obj.(*unstructured.Unstructured)
+				return []string{u.GetLabels()["color"]}
+			})
+			Expect(err).NotTo(HaveOccurred())
+
+			By("creating a reconciler for APIBindings")
 			err = mcbuilder.ControllerManagedBy(mgr).
 				Named("things").
 				For(&apisv1alpha1.APIBinding{}).
@@ -238,6 +302,46 @@ var _ = Describe("VirtualWorkspace Provider", Ordered, func() {
 			}, wait.ForeverTestTimeout, time.Millisecond*100, "failed to see the consumer workspace %q as a cluster", consumer)
 		})
 
+		It("sees only the stone in the consumer clusters", func() {
+			consumerCl, err := mgr.GetCluster(ctx, consumerWS.Spec.Cluster)
+			Expect(err).NotTo(HaveOccurred())
+
+			envtest.Eventually(GinkgoT(), func() (success bool, reason string) {
+				l := &unstructured.UnstructuredList{}
+				l.SetGroupVersionKind(runtimeschema.GroupVersionKind{Group: "example.com", Version: "v1", Kind: "ThingList"})
+				err = consumerCl.GetCache().List(ctx, l)
+				if err != nil {
+					return false, fmt.Sprintf("failed to list things in the consumer cluster cache: %v", err)
+				}
+				if len(l.Items) != 1 {
+					return false, fmt.Sprintf("expected 1 item, got %d\n\n%s", len(l.Items), toYAML(GinkgoT(), l.Object))
+				} else if name := l.Items[0].GetName(); name != "stone" {
+					return false, fmt.Sprintf("expected item name to be stone, got %q\n\n%s", name, toYAML(GinkgoT(), l.Items[0]))
+				}
+				return true, ""
+			}, wait.ForeverTestTimeout, time.Millisecond*100, "failed to see the stone in the consumer cluster")
+		})
+
+		It("sees only the stone as grey thing in the consumer clusters", func() {
+			consumerCl, err := mgr.GetCluster(ctx, consumerWS.Spec.Cluster)
+			Expect(err).NotTo(HaveOccurred())
+
+			envtest.Eventually(GinkgoT(), func() (success bool, reason string) {
+				l := &unstructured.UnstructuredList{}
+				l.SetGroupVersionKind(runtimeschema.GroupVersionKind{Group: "example.com", Version: "v1", Kind: "ThingList"})
+				err = consumerCl.GetCache().List(ctx, l, client.MatchingFields{"color": "gray"})
+				if err != nil {
+					return false, fmt.Sprintf("failed to list things in the consumer cluster cache: %v", err)
+				}
+				if len(l.Items) != 1 {
+					return false, fmt.Sprintf("expected 1 item, got %d\n\n%s", len(l.Items), toYAML(GinkgoT(), l.Object))
+				} else if name := l.Items[0].GetName(); name != "stone" {
+					return false, fmt.Sprintf("expected item name to be stone, got %q\n\n%s", name, toYAML(GinkgoT(), l.Items[0]))
+				}
+				return true, ""
+			}, wait.ForeverTestTimeout, time.Millisecond*100, "failed to see the stone as only thing of color 'grey' in the consumer cluster")
+		})
+
 		AfterAll(func() {
 			cancelGroup()
 			err := g.Wait()

virtualworkspace/forked_cache_reader.go

@@ -212,7 +212,7 @@ func byIndexes(indexer cache.Indexer, requires fields.Requirements, clusterName
 	indexers := indexer.GetIndexers()
 	_, isClusterAware := indexers[kcpcache.ClusterAndNamespaceIndexName]
 	for idx, req := range requires {
-		indexName := fieldIndexName(req.Field)
+		indexName := fieldIndexName(isClusterAware, req.Field)
 		var indexedValue string
 		if isClusterAware {
 			indexedValue = keyToClusteredKey(clusterName.String(), namespace, req.Value)
@@ -270,7 +270,10 @@ func objectKeyToStoreKey(k client.ObjectKey) string {
 
 // fieldIndexName constructs the name of the index over the given field,
 // for use with an indexer.
-func fieldIndexName(field string) string {
+func fieldIndexName(clusterAware bool, field string) string {
+	if clusterAware {
+		return "field:cluster/" + field
+	}
 	return "field:" + field
 }
 
@@ -289,7 +292,10 @@ func keyToNamespacedKey(ns string, baseKey string) string {
 // keyToClusteredKey prefixes the given index key with a cluster name
 // for use in field selector indexes.
 func keyToClusteredKey(clusterName string, ns string, baseKey string) string {
-	return clusterName + "|" + keyToNamespacedKey(ns, baseKey)
+	if ns != "" {
+		return ns + "/" + clusterName + "/" + baseKey
+	}
+	return allNamespacesNamespace + "/" + clusterName + "/" + baseKey
 }
 
 // requiresExactMatch checks if the given field selector is of the form `k=v` or `k==v`.