add k8s networkpolicy resource

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

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)
+}