karmada-search: support field selector for corev1 resources

Signed-off-by: SataQiu <[email protected]>

pkg/search/proxy/framework/plugins/cache/cache.go

@@ -110,7 +110,7 @@ func (c *Cache) Connect(_ context.Context, request framework.ProxyRequest) (http
 			ClusterScoped: mapping.Scope.Name() == meta.RESTScopeNameRoot,
 		},
 		Serializer:       scheme.Codecs.WithoutConversion(),
-		Convertor:        runtime.NewScheme(),
+		Convertor:        cacheScheme,
 		Subresource:      requestInfo.Subresource,
 		MetaGroupVersion: metav1.SchemeGroupVersion,
 		TableConvertor:   r.tableConvertor,

pkg/search/proxy/framework/plugins/cache/scheme.go

@@ -0,0 +1,136 @@
+/*
+Copyright 2024 The Karmada Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package cache
+
+import (
+	"fmt"
+
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+)
+
+// cacheScheme is the runtime.Scheme for the cache plugin.
+var cacheScheme = runtime.NewScheme()
+
+func init() {
+	// This is to ensure that the cache plugin can handle the field selectors for these resources.
+	_ = cacheScheme.AddFieldLabelConversionFunc(corev1.SchemeGroupVersion.WithKind("Pod"),
+		func(label, value string) (string, string, error) {
+			switch label {
+			case "metadata.name",
+				"metadata.namespace",
+				"spec.nodeName",
+				"spec.restartPolicy",
+				"spec.schedulerName",
+				"spec.serviceAccountName",
+				"spec.hostNetwork",
+				"status.phase",
+				"status.podIP",
+				"status.podIPs",
+				"status.nominatedNodeName":
+				return label, value, nil
+			// This is for backwards compatibility with old v1 clients which send spec.host
+			case "spec.host":
+				return "spec.nodeName", value, nil
+			default:
+				return "", "", fmt.Errorf("field label not supported: %s", label)
+			}
+		},
+	)
+	_ = cacheScheme.AddFieldLabelConversionFunc(corev1.SchemeGroupVersion.WithKind("Node"),
+		func(label, value string) (string, string, error) {
+			switch label {
+			case "metadata.name":
+				return label, value, nil
+			case "spec.unschedulable":
+				return label, value, nil
+			default:
+				return "", "", fmt.Errorf("field label not supported: %s", label)
+			}
+		},
+	)
+	_ = cacheScheme.AddFieldLabelConversionFunc(corev1.SchemeGroupVersion.WithKind("ReplicationController"),
+		func(label, value string) (string, string, error) {
+			switch label {
+			case "metadata.name",
+				"metadata.namespace",
+				"status.replicas":
+				return label, value, nil
+			default:
+				return "", "", fmt.Errorf("field label not supported: %s", label)
+			}
+		},
+	)
+	_ = cacheScheme.AddFieldLabelConversionFunc(corev1.SchemeGroupVersion.WithKind("Event"),
+		func(label, value string) (string, string, error) {
+			switch label {
+			case "involvedObject.kind",
+				"involvedObject.namespace",
+				"involvedObject.name",
+				"involvedObject.uid",
+				"involvedObject.apiVersion",
+				"involvedObject.resourceVersion",
+				"involvedObject.fieldPath",
+				"reason",
+				"reportingComponent",
+				"source",
+				"type",
+				"metadata.namespace",
+				"metadata.name":
+				return label, value, nil
+			default:
+				return "", "", fmt.Errorf("field label not supported: %s", label)
+			}
+		},
+	)
+	_ = cacheScheme.AddFieldLabelConversionFunc(corev1.SchemeGroupVersion.WithKind("Namespace"),
+		func(label, value string) (string, string, error) {
+			switch label {
+			case "status.phase",
+				"metadata.name":
+				return label, value, nil
+			default:
+				return "", "", fmt.Errorf("field label not supported: %s", label)
+			}
+		},
+	)
+	_ = cacheScheme.AddFieldLabelConversionFunc(corev1.SchemeGroupVersion.WithKind("Secret"),
+		func(label, value string) (string, string, error) {
+			switch label {
+			case "type",
+				"metadata.namespace",
+				"metadata.name":
+				return label, value, nil
+			default:
+				return "", "", fmt.Errorf("field label not supported: %s", label)
+			}
+		},
+	)
+	_ = cacheScheme.AddFieldLabelConversionFunc(corev1.SchemeGroupVersion.WithKind("Service"),
+		func(label, value string) (string, string, error) {
+			switch label {
+			case "metadata.namespace",
+				"metadata.name",
+				"spec.clusterIP",
+				"spec.type":
+				return label, value, nil
+			default:
+				return "", "", fmt.Errorf("field label not supported: %s", label)
+			}
+		},
+	)
+}