implement ippool

1. support vlan ippool management
2. support calico ippool management

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

pkg/controller/network/nsnetworkpolicy/provider/namespace_np.go

@@ -0,0 +1,27 @@
+/*
+Copyright 2020 KubeSphere 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 provider
+
+import netv1 "k8s.io/api/networking/v1"
+
+// NsNetworkPolicyProvider is a interface to let different cnis to implement our api
+type NsNetworkPolicyProvider interface {
+	Delete(key string)
+	Set(policy *netv1.NetworkPolicy) error
+	Start(stopCh <-chan struct{})
+	GetKey(name, nsname string) string
+}