141 lines
4.3 KiB
Go
141 lines
4.3 KiB
Go
/*
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Copyright 2020 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package service
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import (
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"context"
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"testing"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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clientset "k8s.io/client-go/kubernetes"
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restclient "k8s.io/client-go/rest"
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featuregatetesting "k8s.io/component-base/featuregate/testing"
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"k8s.io/kubernetes/pkg/features"
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"k8s.io/kubernetes/test/integration/framework"
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utilpointer "k8s.io/utils/pointer"
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)
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// Test_ServiceLoadBalancerAllocateNodePorts tests that a Service with spec.allocateLoadBalancerNodePorts=false
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// does not allocate node ports for the Service.
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func Test_ServiceLoadBalancerDisableAllocateNodePorts(t *testing.T) {
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defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ServiceLBNodePortControl, true)()
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masterConfig := framework.NewIntegrationTestMasterConfig()
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_, server, closeFn := framework.RunAMaster(masterConfig)
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defer closeFn()
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config := restclient.Config{Host: server.URL}
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client, err := clientset.NewForConfig(&config)
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if err != nil {
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t.Fatalf("Error creating clientset: %v", err)
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}
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ns := framework.CreateTestingNamespace("test-service-allocate-node-ports", server, t)
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defer framework.DeleteTestingNamespace(ns, server, t)
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service := &corev1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-123",
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},
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Spec: corev1.ServiceSpec{
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Type: corev1.ServiceTypeLoadBalancer,
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AllocateLoadBalancerNodePorts: utilpointer.BoolPtr(false),
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Ports: []corev1.ServicePort{{
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Port: int32(80),
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}},
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Selector: map[string]string{
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"foo": "bar",
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},
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},
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}
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service, err = client.CoreV1().Services(ns.Name).Create(context.TODO(), service, metav1.CreateOptions{})
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if err != nil {
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t.Fatalf("Error creating test service: %v", err)
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}
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if serviceHasNodePorts(service) {
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t.Error("found node ports when none was expected")
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}
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}
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// Test_ServiceLoadBalancerSwitchToDeallocatedNodePorts test that switching a Service
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// to spec.allocateLoadBalancerNodePorts=false, does not de-allocate existing node ports.
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func Test_ServiceLoadBalancerEnableThenDisableAllocatedNodePorts(t *testing.T) {
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defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ServiceLBNodePortControl, true)()
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masterConfig := framework.NewIntegrationTestMasterConfig()
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_, server, closeFn := framework.RunAMaster(masterConfig)
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defer closeFn()
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config := restclient.Config{Host: server.URL}
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client, err := clientset.NewForConfig(&config)
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if err != nil {
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t.Fatalf("Error creating clientset: %v", err)
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}
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ns := framework.CreateTestingNamespace("test-service-deallocate-node-ports", server, t)
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defer framework.DeleteTestingNamespace(ns, server, t)
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service := &corev1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-123",
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},
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Spec: corev1.ServiceSpec{
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Type: corev1.ServiceTypeLoadBalancer,
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AllocateLoadBalancerNodePorts: utilpointer.BoolPtr(true),
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Ports: []corev1.ServicePort{{
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Port: int32(80),
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}},
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Selector: map[string]string{
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"foo": "bar",
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},
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},
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}
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service, err = client.CoreV1().Services(ns.Name).Create(context.TODO(), service, metav1.CreateOptions{})
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if err != nil {
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t.Fatalf("Error creating test service: %v", err)
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}
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if !serviceHasNodePorts(service) {
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t.Error("expected node ports but found none")
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}
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service.Spec.AllocateLoadBalancerNodePorts = utilpointer.BoolPtr(false)
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service, err = client.CoreV1().Services(ns.Name).Update(context.TODO(), service, metav1.UpdateOptions{})
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if err != nil {
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t.Fatalf("Error updating test service: %v", err)
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}
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if !serviceHasNodePorts(service) {
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t.Error("node ports were unexpectedly deallocated")
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}
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}
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func serviceHasNodePorts(svc *corev1.Service) bool {
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for _, port := range svc.Spec.Ports {
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if port.NodePort > 0 {
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return true
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}
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}
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return false
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}
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