feat: kubesphere 4.0 (#6115)

* feat: kubesphere 4.0

Signed-off-by: ci-bot <ci-bot@kubesphere.io>

* feat: kubesphere 4.0

Signed-off-by: ci-bot <ci-bot@kubesphere.io>

---------

Signed-off-by: ci-bot <ci-bot@kubesphere.io>
Co-authored-by: ks-ci-bot <ks-ci-bot@example.com>
Co-authored-by: joyceliu <joyceliu@yunify.com>

pkg/models/resources/v1alpha3/hpa/horizontalpodautoscalers.go

@@ -0,0 +1,109 @@
+/*
+ * Please refer to the LICENSE file in the root directory of the project.
+ * https://github.com/kubesphere/kubesphere/blob/master/LICENSE
+ */
+
+package hpa
+
+import (
+	"context"
+
+	"github.com/Masterminds/semver/v3"
+	autoscalingv2 "k8s.io/api/autoscaling/v2"
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/types"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	runtimeclient "sigs.k8s.io/controller-runtime/pkg/client"
+
+	"kubesphere.io/kubesphere/pkg/api"
+	"kubesphere.io/kubesphere/pkg/apiserver/query"
+	"kubesphere.io/kubesphere/pkg/models/resources/v1alpha3"
+	"kubesphere.io/kubesphere/pkg/scheme"
+	"kubesphere.io/kubesphere/pkg/utils/k8sutil"
+)
+
+type hpaGetter struct {
+	cache   runtimeclient.Reader
+	gvk     schema.GroupVersionKind
+	listGVK schema.GroupVersionKind
+}
+
+func New(cache runtimeclient.Reader, k8sVersion *semver.Version) v1alpha3.Interface {
+	gvk := autoscalingv2.SchemeGroupVersion.WithKind("HorizontalPodAutoscaler")
+	listGVK := schema.GroupVersionKind{
+		Group:   gvk.Group,
+		Version: gvk.Version,
+		Kind:    gvk.Kind + "List",
+	}
+	if k8sutil.ServeAutoscalingV2beta2(k8sVersion) {
+		gvk.Version = "v2beta2"
+		listGVK.Version = "v2beta2"
+	}
+	return &hpaGetter{
+		cache:   cache,
+		gvk:     gvk,
+		listGVK: listGVK,
+	}
+}
+
+func (s *hpaGetter) Get(namespace, name string) (runtime.Object, error) {
+	obj, err := scheme.Scheme.New(s.gvk)
+	if err != nil {
+		return nil, err
+	}
+	hpa := obj.(client.Object)
+	return hpa, s.cache.Get(context.Background(), types.NamespacedName{Namespace: namespace, Name: name}, hpa)
+}
+
+func (s *hpaGetter) List(namespace string, query *query.Query) (*api.ListResult, error) {
+	listObj := &unstructured.UnstructuredList{}
+	listObj.SetGroupVersionKind(s.listGVK)
+
+	if err := s.cache.List(context.Background(), listObj, client.InNamespace(namespace),
+		client.MatchingLabelsSelector{Selector: query.Selector()}); err != nil {
+		return nil, err
+	}
+	var result []runtime.Object
+	if err := listObj.EachListItem(func(object runtime.Object) error {
+		result = append(result, object)
+		return nil
+	}); err != nil {
+		return nil, err
+	}
+	return v1alpha3.DefaultList(result, query, s.compare, s.filter), nil
+}
+
+func (s *hpaGetter) compare(left runtime.Object, right runtime.Object, field query.Field) bool {
+	leftHPA, ok := left.(*unstructured.Unstructured)
+	if !ok {
+		return false
+	}
+
+	rightHPA, ok := right.(*unstructured.Unstructured)
+	if !ok {
+		return false
+	}
+
+	return v1alpha3.DefaultObjectMetaCompare(k8sutil.GetObjectMeta(leftHPA), k8sutil.GetObjectMeta(rightHPA), field)
+}
+
+func (s *hpaGetter) filter(object runtime.Object, filter query.Filter) bool {
+	hpa, ok := object.(*unstructured.Unstructured)
+	if !ok {
+		return false
+	}
+
+	targetKind, _, _ := unstructured.NestedString(hpa.UnstructuredContent(), "spec", "scaleTargetRef", "kind")
+	targetName, _, _ := unstructured.NestedString(hpa.UnstructuredContent(), "spec", "scaleTargetRef", "name")
+
+	switch filter.Field {
+	case "targetKind":
+		return targetKind == string(filter.Value)
+	case "targetName":
+		return targetName == string(filter.Value)
+	default:
+		return v1alpha3.DefaultObjectMetaFilter(k8sutil.GetObjectMeta(hpa), filter)
+	}
+}