Add test cases for standard load balancer.

tests/e2e/network/cross_rg_nodes.go

@@ -29,7 +29,7 @@ import (
 	"k8s.io/cloud-provider-azure/tests/e2e/utils"
 )
 
-var vmNameRE = regexp.MustCompile(`(k8s-.+-\d+)-\d+`)
+var vmNameRE = regexp.MustCompile(`(k8s-.+-\d+)-.+`)
 
 var _ = Describe("Cloud Provider Azure cross resource group nodes", func() {
 	basename := "service-lb"

tests/e2e/network/standard_lb.go

@@ -0,0 +1,112 @@
+/*
+Copyright 2019 The Kubernetes 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 network
+
+import (
+	"strings"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/util/intstr"
+	clientset "k8s.io/client-go/kubernetes"
+	"k8s.io/cloud-provider-azure/tests/e2e/utils"
+)
+
+var _ = Describe("[StandardLoadBalancer] Standard load balancer", func() {
+	basename := "service-lb"
+	serviceName := "servicelb-test"
+
+	var cs clientset.Interface
+	var ns *v1.Namespace
+	var tc *utils.AzureTestClient
+
+	labels := map[string]string{
+		"app": serviceName,
+	}
+	ports := []v1.ServicePort{{
+		Port:       nginxPort,
+		TargetPort: intstr.FromInt(nginxPort),
+	}}
+
+	BeforeEach(func() {
+		var err error
+		cs, err = utils.CreateKubeClientSet()
+		Expect(err).NotTo(HaveOccurred())
+
+		ns, err = utils.CreateTestingNamespace(basename, cs)
+		Expect(err).NotTo(HaveOccurred())
+
+		tc, err = utils.CreateAzureTestClient()
+		Expect(err).NotTo(HaveOccurred())
+
+		utils.Logf("Creating deployment " + serviceName)
+		deployment := createNginxDeploymentManifest(serviceName, labels)
+		_, err = cs.AppsV1().Deployments(ns.Name).Create(deployment)
+		Expect(err).NotTo(HaveOccurred())
+	})
+
+	AfterEach(func() {
+		err := cs.AppsV1().Deployments(ns.Name).Delete(serviceName, nil)
+		Expect(err).NotTo(HaveOccurred())
+
+		err = utils.DeleteNamespace(cs, ns.Name)
+		Expect(err).NotTo(HaveOccurred())
+
+		cs = nil
+		ns = nil
+	})
+
+	It("should add all nodes in different agent pools to backends [MultipleAgentPools]", func() {
+		rgName := tc.GetResourceGroup()
+		publicIP := createServiceWithAnnotation(cs, serviceName, ns.Name, labels, map[string]string{}, ports)
+		lb := getAzureLoadBalancerFromPIP(publicIP, rgName, rgName)
+
+		if !strings.EqualFold(string(lb.Sku.Name), "standard") {
+			Skip("only support standard load balancer")
+		}
+
+		nodeList, err := utils.GetAgentNodes(cs)
+		Expect(err).NotTo(HaveOccurred())
+		if len(nodeList) < 2 {
+			Skip("only support cluster with multiple agent pools")
+		}
+
+		lbBackendAddressPoolsIDMap := make(map[string]bool)
+		for _, backendAddressPool := range *lb.BackendAddressPools {
+			lbBackendAddressPoolsIDMap[*backendAddressPool.ID] = true
+		}
+
+		NICList, err := utils.ListNICs(tc, rgName)
+		Expect(err).NotTo(HaveOccurred())
+		var found bool
+		for _, nic := range *NICList {
+			if strings.Split(*nic.Name, "-")[1] == "master" {
+				continue
+			}
+			for _, ipConfig := range *nic.IPConfigurations {
+				for _, backendAddressPool := range *ipConfig.LoadBalancerBackendAddressPools {
+					if lbBackendAddressPoolsIDMap[*backendAddressPool.ID] {
+						found = true
+					}
+				}
+			}
+			Expect(found).To(BeTrue())
+		}
+	})
+})

tests/e2e/utils/network_interface_utils.go

@@ -26,12 +26,13 @@ import (
 
 var (
 	nicIDConfigurationRE = regexp.MustCompile(`^/subscriptions/(?:.*)/resourceGroups/(?:.*)/providers/Microsoft.Network/networkInterfaces/(.+)`)
-	vmNamePrefixRE       = regexp.MustCompile(`(.+)-nic-\d+`)
+	vmasNamePrefixRE     = regexp.MustCompile(`(.+)-nic-\d+`)
+	nicNameRE            = regexp.MustCompile(`k8s-.+-\d+-.+`)
 )
 
 // ListNICs returns the NIC list in the given resource group
 func ListNICs(tc *AzureTestClient, rgName string) (*[]network.Interface, error) {
-	Logf("Getting network interfaces list in resource group %s", rgName)
+	Logf("getting network interfaces list in resource group %s", rgName)
 
 	ic := tc.createInterfacesClient()
 
@@ -47,12 +48,13 @@ func ListNICs(tc *AzureTestClient, rgName string) (*[]network.Interface, error)
 	return &value, err
 }
 
+// virtual machine availability set only, NIC on VMSS has another naming pattern
 func getVMNamePrefixFromNICID(nicID string) (string, error) {
 	nicMatches := nicIDConfigurationRE.FindStringSubmatch(nicID)
 	if len(nicMatches) != 2 {
 		return "", fmt.Errorf("cannot obtain the name of virtual machine from nicID")
 	}
-	vmMatches := vmNamePrefixRE.FindStringSubmatch(nicMatches[1])
+	vmMatches := vmasNamePrefixRE.FindStringSubmatch(nicMatches[1])
 	if len(vmMatches) != 2 {
 		return "", fmt.Errorf("cannot obtain the name of virtual machine from nicID")
 	}