removed hardcoded list of namespaceable resources

api/resid/gvk.go

@@ -6,6 +6,7 @@ package resid
 import (
 	"strings"
 
+	"sigs.k8s.io/kustomize/kyaml/openapi"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
@@ -207,5 +208,6 @@ func (x Gvk) toKyamlTypeMeta() yaml.TypeMeta {
 // IsNamespaceableKind returns true if x is a namespaceable Gvk
 // Implements https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces/#not-all-objects-are-in-a-namespace
 func (x Gvk) IsNamespaceableKind() bool {
-	return x.toKyamlTypeMeta().IsNamespaceable()
+	isNamespaceScoped, found := openapi.IsNamespaceScoped(x.toKyamlTypeMeta())
+	return !found || isNamespaceScoped
 }

api/resid/gvk_test.go

@@ -18,6 +18,8 @@ package resid
 
 import (
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 var equalsTests = []struct {
@@ -255,3 +257,40 @@ func TestSelectByGVK(t *testing.T) {
 		}
 	}
 }
+
+func TestIsNamespaceableKind(t *testing.T) {
+	testCases := []struct {
+		name     string
+		gvk      Gvk
+		expected bool
+	}{
+		{
+			"namespaceable resource",
+			Gvk{Group: "apps", Version: "v1", Kind: "Deployment"},
+			true,
+		},
+		{
+			"clusterscoped resource",
+			Gvk{Group: "", Version: "v1", Kind: "Namespace"},
+			false,
+		},
+		{
+			"unknown resource (should default to namespaceable)",
+			Gvk{Group: "example1.com", Version: "v1", Kind: "Bar"},
+			true,
+		},
+		{
+			"unknown resource (should default to namespaceable)",
+			Gvk{Group: "apps", Version: "v1", Kind: "ClusterRoleBinding"},
+			true,
+		},
+	}
+
+	for i := range testCases {
+		test := testCases[i]
+		t.Run(test.name, func(t *testing.T) {
+			isNamespaceable := test.gvk.IsNamespaceableKind()
+			assert.Equal(t, test.expected, isNamespaceable)
+		})
+	}
+}

api/resid/resid_test.go

@@ -265,7 +265,7 @@ func TestResIdEquals(t *testing.T) {
 				Name: "nm",
 			},
 			gVknResult: false,
-			nsEquals:   false,
+			nsEquals:   true,
 			equals:     false,
 		},
 		{
@@ -376,7 +376,7 @@ func TestEffectiveNamespace(t *testing.T) {
 	}{
 		{
 			id: ResId{
-				Gvk:  Gvk{Group: "g", Version: "v", Kind: "Node"},
+				Gvk:  Gvk{Group: "", Version: "v1", Kind: "Node"},
 				Name: "nm",
 			},
 			expected: TotallyNotANamespace,
@@ -384,7 +384,7 @@ func TestEffectiveNamespace(t *testing.T) {
 		{
 			id: ResId{
 				Namespace: "foo",
-				Gvk:       Gvk{Group: "g", Version: "v", Kind: "Node"},
+				Gvk:       Gvk{Group: "", Version: "v1", Kind: "Node"},
 				Name:      "nm",
 			},
 			expected: TotallyNotANamespace,