k8s.io/kubernetes@v1.29.3/test/integration/authutil/authutil.go (about) 1 /* 2 Copyright 2021 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 authutil 18 19 import ( 20 "context" 21 "strings" 22 "testing" 23 "time" 24 25 authorizationv1 "k8s.io/api/authorization/v1" 26 rbacv1 "k8s.io/api/rbac/v1" 27 metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" 28 "k8s.io/apimachinery/pkg/runtime/schema" 29 "k8s.io/apimachinery/pkg/util/wait" 30 clientset "k8s.io/client-go/kubernetes" 31 authorizationv1client "k8s.io/client-go/kubernetes/typed/authorization/v1" 32 ) 33 34 // WaitForNamedAuthorizationUpdate checks if the given user can perform the named verb and action on the named resource. 35 // Copied from k8s.io/kubernetes/test/e2e/framework/auth. 36 func WaitForNamedAuthorizationUpdate(t *testing.T, ctx context.Context, c authorizationv1client.SubjectAccessReviewsGetter, user, namespace, verb, resourceName string, resource schema.GroupResource, allowed bool) { 37 t.Helper() 38 39 review := &authorizationv1.SubjectAccessReview{ 40 Spec: authorizationv1.SubjectAccessReviewSpec{ 41 ResourceAttributes: &authorizationv1.ResourceAttributes{ 42 Group: resource.Group, 43 Verb: verb, 44 Resource: resource.Resource, 45 Namespace: namespace, 46 Name: resourceName, 47 }, 48 User: user, 49 }, 50 } 51 52 if err := wait.Poll(200*time.Millisecond, wait.ForeverTestTimeout, func() (bool, error) { 53 response, err := c.SubjectAccessReviews().Create(ctx, review, metav1.CreateOptions{}) 54 if err != nil { 55 return false, err 56 } 57 if response.Status.Allowed != allowed { 58 return false, nil 59 } 60 return true, nil 61 }); err != nil { 62 t.Fatal(err) 63 } 64 } 65 66 func GrantUserAuthorization(t *testing.T, ctx context.Context, adminClient clientset.Interface, username string, rule rbacv1.PolicyRule) { 67 grantAuthorization(t, ctx, adminClient, username, "", rbacv1.UserKind, rule) 68 } 69 70 func GrantServiceAccountAuthorization(t *testing.T, ctx context.Context, adminClient clientset.Interface, serviceAccountName, serviceAccountNamespace string, rule rbacv1.PolicyRule) { 71 grantAuthorization(t, ctx, adminClient, serviceAccountName, serviceAccountNamespace, rbacv1.ServiceAccountKind, rule) 72 } 73 74 func grantAuthorization(t *testing.T, ctx context.Context, adminClient clientset.Interface, name, namespace, accountKind string, rule rbacv1.PolicyRule) { 75 t.Helper() 76 77 cr, err := adminClient.RbacV1().ClusterRoles().Create(ctx, &rbacv1.ClusterRole{ 78 ObjectMeta: metav1.ObjectMeta{GenerateName: strings.Replace(t.Name(), "/", "--", -1)}, 79 Rules: []rbacv1.PolicyRule{ 80 rule, 81 }, 82 }, metav1.CreateOptions{}) 83 if err != nil { 84 t.Fatal(err) 85 } 86 t.Cleanup(func() { 87 _ = adminClient.RbacV1().ClusterRoles().Delete(ctx, cr.Name, metav1.DeleteOptions{}) 88 }) 89 90 crb, err := adminClient.RbacV1().ClusterRoleBindings().Create(ctx, &rbacv1.ClusterRoleBinding{ 91 ObjectMeta: metav1.ObjectMeta{GenerateName: strings.Replace(t.Name(), "/", "--", -1)}, 92 Subjects: []rbacv1.Subject{ 93 { 94 Kind: accountKind, 95 // APIGroup defaults to the appropriate value for both users and service accounts 96 Name: name, 97 Namespace: namespace, 98 }, 99 }, 100 RoleRef: rbacv1.RoleRef{ 101 APIGroup: rbacv1.GroupName, 102 Kind: "ClusterRole", 103 Name: cr.Name, 104 }, 105 }, metav1.CreateOptions{}) 106 if err != nil { 107 t.Fatal(err) 108 } 109 t.Cleanup(func() { 110 _ = adminClient.RbacV1().ClusterRoleBindings().Delete(ctx, crb.Name, metav1.DeleteOptions{}) 111 }) 112 113 var resourceName string 114 if len(rule.ResourceNames) > 0 { 115 resourceName = rule.ResourceNames[0] 116 } 117 118 subjectName := name 119 if accountKind == rbacv1.ServiceAccountKind { 120 subjectName = "system:serviceaccount:" + namespace + ":" + name 121 } 122 123 WaitForNamedAuthorizationUpdate( 124 t, 125 ctx, 126 adminClient.AuthorizationV1(), 127 subjectName, 128 namespace, 129 rule.Verbs[0], 130 resourceName, 131 schema.GroupResource{Group: rule.APIGroups[0], Resource: rule.Resources[0]}, 132 true, 133 ) 134 }