k8s.io/kubernetes@v1.29.3/test/e2e_kubeadm/dns_addon_test.go (about) 1 /* 2 Copyright 2019 The Kubernetes Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package kubeadm 18 19 import ( 20 "context" 21 22 "k8s.io/kubernetes/test/e2e/framework" 23 admissionapi "k8s.io/pod-security-admission/api" 24 25 "github.com/onsi/ginkgo/v2" 26 "github.com/onsi/gomega" 27 ) 28 29 const ( 30 dnsService = "kube-dns" 31 32 coreDNSServiceAccountName = "coredns" 33 coreDNSConfigMap = "coredns" 34 coreDNSConfigMapKey = "Corefile" 35 coreDNSRoleName = "system:coredns" 36 coreDNSRoleBindingName = coreDNSRoleName 37 coreDNSDeploymentName = "coredns" 38 ) 39 40 // Define container for all the test specification aimed at verifying 41 // that kubeadm configures the DNS addon as expected 42 var _ = Describe("DNS addon", func() { 43 44 // Get an instance of the k8s test framework 45 f := framework.NewDefaultFramework("DNS") 46 f.NamespacePodSecurityLevel = admissionapi.LevelPrivileged 47 48 // Tests in this container are not expected to create new objects in the cluster 49 // so we are disabling the creation of a namespace in order to get a faster execution 50 f.SkipNamespaceCreation = true 51 52 ginkgo.Context("CoreDNS", func() { 53 ginkgo.Context("CoreDNS ServiceAccount", func() { 54 ginkgo.It("should exist", func(ctx context.Context) { 55 ExpectServiceAccount(f.ClientSet, kubeSystemNamespace, coreDNSServiceAccountName) 56 }) 57 58 ginkgo.It("should have related ClusterRole and ClusterRoleBinding", func(ctx context.Context) { 59 ExpectClusterRole(f.ClientSet, coreDNSRoleName) 60 ExpectClusterRoleBinding(f.ClientSet, coreDNSRoleBindingName) 61 }) 62 }) 63 64 ginkgo.Context("CoreDNS ConfigMap", func() { 65 ginkgo.It("should exist and be properly configured", func(ctx context.Context) { 66 cm := GetConfigMap(f.ClientSet, kubeSystemNamespace, coreDNSConfigMap) 67 gomega.Expect(cm.Data).To(gomega.HaveKey(coreDNSConfigMapKey)) 68 }) 69 }) 70 71 ginkgo.Context("CoreDNS Deployment", func() { 72 ginkgo.It("should exist and be properly configured", func(ctx context.Context) { 73 d := GetDeployment(f.ClientSet, kubeSystemNamespace, coreDNSDeploymentName) 74 gomega.Expect(d.Spec.Template.Spec.ServiceAccountName).To(gomega.Equal(coreDNSServiceAccountName)) 75 }) 76 }) 77 }) 78 79 ginkgo.Context("DNS Service", func() { 80 ginkgo.It("should exist", func(ctx context.Context) { 81 ExpectService(f.ClientSet, kubeSystemNamespace, dnsService) 82 }) 83 }) 84 })