implement ippool

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

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

pkg/simple/client/network/ippool/provider_test.go

@@ -0,0 +1,68 @@
+/*
+Copyright 2020 The 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 ippool
+
+import (
+	"testing"
+
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"kubesphere.io/kubesphere/pkg/apis/network/v1alpha1"
+	fakeks "kubesphere.io/kubesphere/pkg/client/clientset/versioned/fake"
+	"kubesphere.io/kubesphere/pkg/simple/client/network/ippool/ipam"
+)
+
+func testNewProvider() provider {
+	return NewProvider(fakeks.NewSimpleClientset(), Options{})
+}
+
+func TestProvider_GetIPPoolStats(t *testing.T) {
+	p := testNewProvider()
+
+	pool := v1alpha1.IPPool{
+		TypeMeta: v1.TypeMeta{},
+		ObjectMeta: v1.ObjectMeta{
+			Name: "testippool",
+			Labels: map[string]string{
+				v1alpha1.IPPoolTypeLabel: v1alpha1.VLAN,
+			},
+		},
+		Spec: v1alpha1.IPPoolSpec{
+			Type: v1alpha1.VLAN,
+			CIDR: "192.168.0.0/24",
+		},
+		Status: v1alpha1.IPPoolStatus{},
+	}
+
+	_, err := p.kubesphereClient.NetworkV1alpha1().IPPools().Create(&pool)
+	if err != nil {
+		t.FailNow()
+	}
+
+	p.ipamclient.AutoAssign(ipam.AutoAssignArgs{
+		HandleID: "testhandle",
+		Attrs:    nil,
+		Pool:     "testippool",
+	})
+	stat, err := p.GetIPPoolStats(&pool)
+	if err != nil {
+		t.FailNow()
+	}
+	if stat.Status.Unallocated != pool.NumAddresses()-1 || stat.Status.Reserved != 0 ||
+		stat.Status.Capacity != pool.NumAddresses() || stat.Status.Allocations != 1 {
+		t.FailNow()
+	}
+}