add k8s networkpolicy resource

Signed-off-by: Duan Jiong <djduanjiong@gmail.com>

pkg/apiserver/apiserver.go

@@ -282,6 +282,8 @@ func (s *APIServer) waitForResourceSync(stopCh <-chan struct{}) error {
 		{Group: "extensions", Version: "v1beta1", Resource: "ingresses"},
 
 		{Group: "autoscaling", Version: "v2beta2", Resource: "horizontalpodautoscalers"},
+
+		{Group: "networking.k8s.io", Version: "v1", Resource: "networkpolicies"},
 	}
 
 	for _, gvr := range k8sGVRs {

pkg/models/resources/v1alpha3/networkpolicy/networkpolicies.go

@@ -0,0 +1,59 @@
+package networkpolicy
+
+import (
+	v1 "k8s.io/api/networking/v1"
+	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/client-go/informers"
+	"kubesphere.io/kubesphere/pkg/api"
+	"kubesphere.io/kubesphere/pkg/apiserver/query"
+	"kubesphere.io/kubesphere/pkg/models/resources/v1alpha3"
+)
+
+type networkpolicyGetter struct {
+	informers informers.SharedInformerFactory
+}
+
+func New(informers informers.SharedInformerFactory) v1alpha3.Interface {
+	return &networkpolicyGetter{informers: informers}
+}
+
+func (n networkpolicyGetter) Get(namespace, name string) (runtime.Object, error) {
+	return n.informers.Networking().V1().NetworkPolicies().Lister().NetworkPolicies(namespace).Get(name)
+}
+
+func (n networkpolicyGetter) List(namespace string, query *query.Query) (*api.ListResult, error) {
+	nps, err := n.informers.Networking().V1().NetworkPolicies().Lister().NetworkPolicies(namespace).List(labels.Everything())
+	if err != nil {
+		return nil, err
+	}
+
+	var result []runtime.Object
+	for _, item := range nps {
+		result = append(result, item)
+	}
+
+	return v1alpha3.DefaultList(result, query, n.compare, n.filter), nil
+}
+
+func (n networkpolicyGetter) filter(item runtime.Object, filter query.Filter) bool {
+	np, ok := item.(*v1.NetworkPolicy)
+	if !ok {
+		return false
+	}
+
+	return v1alpha3.DefaultObjectMetaFilter(np.ObjectMeta, filter)
+}
+
+func (n networkpolicyGetter) compare(left runtime.Object, right runtime.Object, field query.Field) bool {
+	leftNP, ok := left.(*v1.NetworkPolicy)
+	if !ok {
+		return false
+	}
+
+	rightNP, ok := right.(*v1.NetworkPolicy)
+	if !ok {
+		return true
+	}
+	return v1alpha3.DefaultObjectMetaCompare(leftNP.ObjectMeta, rightNP.ObjectMeta, field)
+}

pkg/models/resources/v1alpha3/networkpolicy/networkpolicies_test.go

@@ -0,0 +1,93 @@
+package networkpolicy
+
+import (
+	"github.com/google/go-cmp/cmp"
+	netv1 "k8s.io/api/networking/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/informers"
+	"k8s.io/client-go/kubernetes/fake"
+	"kubesphere.io/kubesphere/pkg/api"
+	"kubesphere.io/kubesphere/pkg/apiserver/query"
+	"kubesphere.io/kubesphere/pkg/models/resources/v1alpha3"
+	"testing"
+)
+
+func TestListNetworkPolicies(t *testing.T) {
+	tests := []struct {
+		description string
+		namespace   string
+		query       *query.Query
+		expected    *api.ListResult
+		expectedErr error
+	}{
+		{
+			"test name filter",
+			"default",
+			&query.Query{
+				Pagination: &query.Pagination{
+					Limit:  10,
+					Offset: 0,
+				},
+				SortBy:    query.FieldName,
+				Ascending: false,
+				Filters: map[query.Field]query.Value{
+					query.FieldNamespace: query.Value("default"),
+				},
+			},
+			&api.ListResult{
+				Items:      []interface{}{foo3, foo2, foo1},
+				TotalItems: len(networkpolicies),
+			},
+			nil,
+		},
+	}
+
+	getter := prepare()
+
+	for _, test := range tests {
+		got, err := getter.List(test.namespace, test.query)
+		if test.expectedErr != nil && err != test.expectedErr {
+			t.Errorf("expected error, got nothing")
+		} else if err != nil {
+			t.Fatal(err)
+		}
+
+		if diff := cmp.Diff(got, test.expected); diff != "" {
+			t.Errorf("%T differ (-got, +want): %s", test.expected, diff)
+		}
+	}
+}
+
+var (
+	foo1 = &netv1.NetworkPolicy{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "foo1",
+			Namespace: "default",
+		},
+	}
+	foo2 = &netv1.NetworkPolicy{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "foo2",
+			Namespace: "default",
+		},
+	}
+	foo3 = &netv1.NetworkPolicy{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "foo3",
+			Namespace: "default",
+		},
+	}
+	networkpolicies = []interface{}{foo1, foo2, foo3}
+)
+
+func prepare() v1alpha3.Interface {
+
+	client := fake.NewSimpleClientset()
+	informer := informers.NewSharedInformerFactory(client, 0)
+
+	for _, networkpolicy := range networkpolicies {
+		informer.Networking().V1().NetworkPolicies().Informer().GetIndexer().Add(networkpolicy)
+	}
+
+	return New(informer)
+}

pkg/models/resources/v1alpha3/resource/resource.go

@@ -35,6 +35,7 @@ import (
 	"kubesphere.io/kubesphere/pkg/models/resources/v1alpha3/deployment"
 	"kubesphere.io/kubesphere/pkg/models/resources/v1alpha3/globalrole"
 	"kubesphere.io/kubesphere/pkg/models/resources/v1alpha3/namespace"
+	"kubesphere.io/kubesphere/pkg/models/resources/v1alpha3/networkpolicy"
 	"kubesphere.io/kubesphere/pkg/models/resources/v1alpha3/pod"
 	"kubesphere.io/kubesphere/pkg/models/resources/v1alpha3/role"
 	"kubesphere.io/kubesphere/pkg/models/resources/v1alpha3/user"
@@ -56,6 +57,7 @@ func NewResourceGetter(factory informers.InformerFactory) *ResourceGetter {
 	getters[schema.GroupVersionResource{Group: "", Version: "v1", Resource: "configmaps"}] = configmap.New(factory.KubernetesSharedInformerFactory())
 	getters[schema.GroupVersionResource{Group: "", Version: "v1", Resource: "pods"}] = pod.New(factory.KubernetesSharedInformerFactory())
 	getters[schema.GroupVersionResource{Group: "app.k8s.io", Version: "v1beta1", Resource: "applications"}] = application.New(factory.ApplicationSharedInformerFactory())
+	getters[schema.GroupVersionResource{Group: "networking.k8s.io", Version: "v1", Resource: "networkpolicies"}] = networkpolicy.New(factory.KubernetesSharedInformerFactory())
 	getters[tenantv1alpha1.SchemeGroupVersion.WithResource(tenantv1alpha1.ResourcePluralWorkspace)] = workspace.New(factory.KubeSphereSharedInformerFactory())
 	getters[iamv1alpha2.SchemeGroupVersion.WithResource(iamv1alpha2.ResourcesPluralGlobalRole)] = globalrole.New(factory.KubeSphereSharedInformerFactory())
 	getters[iamv1alpha2.SchemeGroupVersion.WithResource(iamv1alpha2.ResourcesPluralWorkspaceRole)] = workspacerole.New(factory.KubeSphereSharedInformerFactory())