proxy_addon_test.go

Documentation: k8s.io/kubernetes/test/e2e_kubeadm

     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  	authv1 "k8s.io/api/authorization/v1"
    23  	rbacv1 "k8s.io/api/rbac/v1"
    24  	"k8s.io/kubernetes/test/e2e/framework"
    25  	admissionapi "k8s.io/pod-security-admission/api"
    26  
    27  	"github.com/onsi/ginkgo/v2"
    28  	"github.com/onsi/gomega"
    29  )
    30  
    31  const (
    32  	kubeProxyServiceAccountName     = "kube-proxy"
    33  	kubeProxyConfigMap              = "kube-proxy"
    34  	kubeProxyConfigMapKey           = "config.conf"
    35  	kubeProxyConfigMapKeyKubeconfig = "kubeconfig.conf"
    36  	kubeProxyClusterRoleName        = "system:node-proxier"
    37  	kubeProxyClusterRoleBindingName = "kubeadm:node-proxier"
    38  	kubeProxyRoleName               = "kube-proxy"
    39  	kubeProxyRoleBindingName        = kubeProxyRoleName
    40  	kubeProxyDaemonSetName          = "kube-proxy"
    41  )
    42  
    43  var (
    44  	kubeProxyConfigMapResource = &authv1.ResourceAttributes{
    45  		Namespace: kubeSystemNamespace,
    46  		Name:      kubeProxyConfigMap,
    47  		Resource:  "configmaps",
    48  		Verb:      "get",
    49  	}
    50  )
    51  
    52  // Define container for all the test specification aimed at verifying
    53  // that kubeadm configures the proxy addon as expected
    54  var _ = Describe("proxy addon", func() {
    55  
    56  	// Get an instance of the k8s test framework
    57  	f := framework.NewDefaultFramework("proxy")
    58  	f.NamespacePodSecurityLevel = admissionapi.LevelPrivileged
    59  
    60  	// Tests in this container are not expected to create new objects in the cluster
    61  	// so we are disabling the creation of a namespace in order to get a faster execution
    62  	f.SkipNamespaceCreation = true
    63  
    64  	ginkgo.Context("kube-proxy ServiceAccount", func() {
    65  		ginkgo.It("should exist", func(ctx context.Context) {
    66  			ExpectServiceAccount(f.ClientSet, kubeSystemNamespace, kubeProxyServiceAccountName)
    67  		})
    68  
    69  		ginkgo.It("should be bound to the system:node-proxier cluster role", func(ctx context.Context) {
    70  			ExpectClusterRoleBindingWithSubjectAndRole(f.ClientSet,
    71  				kubeProxyClusterRoleBindingName,
    72  				rbacv1.ServiceAccountKind, kubeProxyServiceAccountName,
    73  				kubeProxyClusterRoleName,
    74  			)
    75  		})
    76  	})
    77  
    78  	ginkgo.Context("kube-proxy ConfigMap", func() {
    79  		ginkgo.It("should exist and be properly configured", func(ctx context.Context) {
    80  			cm := GetConfigMap(f.ClientSet, kubeSystemNamespace, kubeProxyConfigMap)
    81  
    82  			gomega.Expect(cm.Data).To(gomega.HaveKey(kubeProxyConfigMapKey))
    83  			gomega.Expect(cm.Data).To(gomega.HaveKey(kubeProxyConfigMapKeyKubeconfig))
    84  		})
    85  
    86  		ginkgo.It("should have related Role and RoleBinding", func(ctx context.Context) {
    87  			ExpectRole(f.ClientSet, kubeSystemNamespace, kubeProxyRoleName)
    88  			ExpectRoleBinding(f.ClientSet, kubeSystemNamespace, kubeProxyRoleBindingName)
    89  		})
    90  
    91  		ginkgo.It("should be accessible by bootstrap tokens", func(ctx context.Context) {
    92  			ExpectSubjectHasAccessToResource(f.ClientSet,
    93  				rbacv1.GroupKind, bootstrapTokensGroup,
    94  				kubeProxyConfigMapResource,
    95  			)
    96  		})
    97  	})
    98  
    99  	ginkgo.Context("kube-proxy DaemonSet", func() {
   100  		ginkgo.It("should exist and be properly configured", func(ctx context.Context) {
   101  			ds := GetDaemonSet(f.ClientSet, kubeSystemNamespace, kubeProxyDaemonSetName)
   102  
   103  			gomega.Expect(ds.Spec.Template.Spec.ServiceAccountName).To(gomega.Equal(kubeProxyServiceAccountName))
   104  		})
   105  	})
   106  })
   107
View as plain text