304 lines
9.8 KiB
Go
304 lines
9.8 KiB
Go
/*
|
|
Copyright 2017 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 auth
|
|
|
|
import (
|
|
"encoding/base64"
|
|
"encoding/json"
|
|
"strings"
|
|
"testing"
|
|
|
|
authenticationv1 "k8s.io/api/authentication/v1"
|
|
v1 "k8s.io/api/core/v1"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/apimachinery/pkg/types"
|
|
"k8s.io/apiserver/pkg/authorization/authorizerfactory"
|
|
utilfeature "k8s.io/apiserver/pkg/util/feature"
|
|
utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
|
|
clientset "k8s.io/client-go/kubernetes"
|
|
certutil "k8s.io/client-go/util/cert"
|
|
"k8s.io/kubernetes/pkg/features"
|
|
"k8s.io/kubernetes/pkg/serviceaccount"
|
|
"k8s.io/kubernetes/test/integration/framework"
|
|
)
|
|
|
|
const ecdsaPrivateKey = `-----BEGIN EC PRIVATE KEY-----
|
|
MHcCAQEEIEZmTmUhuanLjPA2CLquXivuwBDHTt5XYwgIr/kA1LtRoAoGCCqGSM49
|
|
AwEHoUQDQgAEH6cuzP8XuD5wal6wf9M6xDljTOPLX2i8uIp/C/ASqiIGUeeKQtX0
|
|
/IR3qCXyThP/dbCiHrF3v1cuhBOHY8CLVg==
|
|
-----END EC PRIVATE KEY-----`
|
|
|
|
func TestServiceAccountTokenCreate(t *testing.T) {
|
|
defer utilfeaturetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.TokenRequest, true)()
|
|
|
|
// Build client config, clientset, and informers
|
|
sk, err := certutil.ParsePrivateKeyPEM([]byte(ecdsaPrivateKey))
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Start the server
|
|
masterConfig := framework.NewIntegrationTestMasterConfig()
|
|
masterConfig.GenericConfig.Authorization.Authorizer = authorizerfactory.NewAlwaysAllowAuthorizer()
|
|
masterConfig.ExtraConfig.ServiceAccountIssuer = serviceaccount.JWTTokenGenerator("https://foo.bar.example.com", sk)
|
|
|
|
master, _, closeFn := framework.RunAMaster(masterConfig)
|
|
defer closeFn()
|
|
|
|
cs, err := clientset.NewForConfig(master.GenericAPIServer.LoopbackClientConfig)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
var (
|
|
sa = &v1.ServiceAccount{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "test-svcacct",
|
|
Namespace: "myns",
|
|
},
|
|
}
|
|
pod = &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "test-pod",
|
|
Namespace: sa.Namespace,
|
|
},
|
|
Spec: v1.PodSpec{
|
|
ServiceAccountName: sa.Name,
|
|
Containers: []v1.Container{{Name: "test-container", Image: "nginx"}},
|
|
},
|
|
}
|
|
secret = &v1.Secret{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "test-secret",
|
|
Namespace: sa.Namespace,
|
|
},
|
|
}
|
|
|
|
one = int64(1)
|
|
wrongUID = types.UID("wrong")
|
|
noUID = types.UID("")
|
|
)
|
|
|
|
t.Run("bound to service account", func(t *testing.T) {
|
|
treq := &authenticationv1.TokenRequest{
|
|
Spec: authenticationv1.TokenRequestSpec{
|
|
Audiences: []string{"api"},
|
|
ExpirationSeconds: &one,
|
|
},
|
|
}
|
|
|
|
if resp, err := cs.CoreV1().ServiceAccounts(sa.Namespace).CreateToken(sa.Name, treq); err == nil {
|
|
t.Fatalf("expected err creating token for nonexistant svcacct but got: %#v", resp)
|
|
}
|
|
sa, del := createDeleteSvcAcct(t, cs, sa)
|
|
defer del()
|
|
|
|
treq, err = cs.CoreV1().ServiceAccounts(sa.Namespace).CreateToken(sa.Name, treq)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
checkPayload(t, treq.Status.Token, `"system:serviceaccount:myns:test-svcacct"`, "sub")
|
|
checkPayload(t, treq.Status.Token, `["api"]`, "aud")
|
|
checkPayload(t, treq.Status.Token, "null", "kubernetes.io", "pod")
|
|
checkPayload(t, treq.Status.Token, "null", "kubernetes.io", "secret")
|
|
checkPayload(t, treq.Status.Token, `"myns"`, "kubernetes.io", "namespace")
|
|
checkPayload(t, treq.Status.Token, `"test-svcacct"`, "kubernetes.io", "serviceaccount", "name")
|
|
})
|
|
|
|
t.Run("bound to service account and pod", func(t *testing.T) {
|
|
treq := &authenticationv1.TokenRequest{
|
|
Spec: authenticationv1.TokenRequestSpec{
|
|
Audiences: []string{"api"},
|
|
ExpirationSeconds: &one,
|
|
BoundObjectRef: &authenticationv1.BoundObjectReference{
|
|
Kind: "Pod",
|
|
APIVersion: "v1",
|
|
Name: pod.Name,
|
|
},
|
|
},
|
|
}
|
|
|
|
if resp, err := cs.CoreV1().ServiceAccounts(sa.Namespace).CreateToken(sa.Name, treq); err == nil {
|
|
t.Fatalf("expected err creating token for nonexistant svcacct but got: %#v", resp)
|
|
}
|
|
sa, del := createDeleteSvcAcct(t, cs, sa)
|
|
defer del()
|
|
|
|
if resp, err := cs.CoreV1().ServiceAccounts(sa.Namespace).CreateToken(sa.Name, treq); err == nil {
|
|
t.Fatalf("expected err creating token bound to nonexistant pod but got: %#v", resp)
|
|
}
|
|
pod, del := createDeletePod(t, cs, pod)
|
|
defer del()
|
|
|
|
// right uid
|
|
treq.Spec.BoundObjectRef.UID = pod.UID
|
|
if _, err := cs.CoreV1().ServiceAccounts(sa.Namespace).CreateToken(sa.Name, treq); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
// wrong uid
|
|
treq.Spec.BoundObjectRef.UID = wrongUID
|
|
if resp, err := cs.CoreV1().ServiceAccounts(sa.Namespace).CreateToken(sa.Name, treq); err == nil {
|
|
t.Fatalf("expected err creating token bound to pod with wrong uid but got: %#v", resp)
|
|
}
|
|
// no uid
|
|
treq.Spec.BoundObjectRef.UID = noUID
|
|
treq, err = cs.CoreV1().ServiceAccounts(sa.Namespace).CreateToken(sa.Name, treq)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
checkPayload(t, treq.Status.Token, `"system:serviceaccount:myns:test-svcacct"`, "sub")
|
|
checkPayload(t, treq.Status.Token, `["api"]`, "aud")
|
|
checkPayload(t, treq.Status.Token, `"test-pod"`, "kubernetes.io", "pod", "name")
|
|
checkPayload(t, treq.Status.Token, "null", "kubernetes.io", "secret")
|
|
checkPayload(t, treq.Status.Token, `"myns"`, "kubernetes.io", "namespace")
|
|
checkPayload(t, treq.Status.Token, `"test-svcacct"`, "kubernetes.io", "serviceaccount", "name")
|
|
})
|
|
|
|
t.Run("bound to service account and secret", func(t *testing.T) {
|
|
treq := &authenticationv1.TokenRequest{
|
|
Spec: authenticationv1.TokenRequestSpec{
|
|
Audiences: []string{"api"},
|
|
ExpirationSeconds: &one,
|
|
BoundObjectRef: &authenticationv1.BoundObjectReference{
|
|
Kind: "Secret",
|
|
APIVersion: "v1",
|
|
Name: secret.Name,
|
|
UID: secret.UID,
|
|
},
|
|
},
|
|
}
|
|
|
|
if resp, err := cs.CoreV1().ServiceAccounts(sa.Namespace).CreateToken(sa.Name, treq); err == nil {
|
|
t.Fatalf("expected err creating token for nonexistant svcacct but got: %#v", resp)
|
|
}
|
|
sa, del := createDeleteSvcAcct(t, cs, sa)
|
|
defer del()
|
|
|
|
if resp, err := cs.CoreV1().ServiceAccounts(sa.Namespace).CreateToken(sa.Name, treq); err == nil {
|
|
t.Fatalf("expected err creating token bound to nonexistant secret but got: %#v", resp)
|
|
}
|
|
secret, del := createDeleteSecret(t, cs, secret)
|
|
defer del()
|
|
|
|
// right uid
|
|
treq.Spec.BoundObjectRef.UID = secret.UID
|
|
if _, err := cs.CoreV1().ServiceAccounts(sa.Namespace).CreateToken(sa.Name, treq); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
// wrong uid
|
|
treq.Spec.BoundObjectRef.UID = wrongUID
|
|
if resp, err := cs.CoreV1().ServiceAccounts(sa.Namespace).CreateToken(sa.Name, treq); err == nil {
|
|
t.Fatalf("expected err creating token bound to secret with wrong uid but got: %#v", resp)
|
|
}
|
|
// no uid
|
|
treq.Spec.BoundObjectRef.UID = noUID
|
|
treq, err = cs.CoreV1().ServiceAccounts(sa.Namespace).CreateToken(sa.Name, treq)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
checkPayload(t, treq.Status.Token, `"system:serviceaccount:myns:test-svcacct"`, "sub")
|
|
checkPayload(t, treq.Status.Token, `["api"]`, "aud")
|
|
checkPayload(t, treq.Status.Token, `null`, "kubernetes.io", "pod")
|
|
checkPayload(t, treq.Status.Token, `"test-secret"`, "kubernetes.io", "secret", "name")
|
|
checkPayload(t, treq.Status.Token, `"myns"`, "kubernetes.io", "namespace")
|
|
checkPayload(t, treq.Status.Token, `"test-svcacct"`, "kubernetes.io", "serviceaccount", "name")
|
|
})
|
|
}
|
|
|
|
func checkPayload(t *testing.T, tok string, want string, parts ...string) {
|
|
t.Helper()
|
|
got := getSubObject(t, getPayload(t, tok), parts...)
|
|
if got != want {
|
|
t.Errorf("unexpected payload.\nsaw:\t%v\nwant:\t%v", got, want)
|
|
}
|
|
}
|
|
|
|
func getSubObject(t *testing.T, b string, parts ...string) string {
|
|
t.Helper()
|
|
var obj interface{}
|
|
obj = make(map[string]interface{})
|
|
if err := json.Unmarshal([]byte(b), &obj); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
for _, part := range parts {
|
|
obj = obj.(map[string]interface{})[part]
|
|
}
|
|
out, err := json.Marshal(obj)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
return string(out)
|
|
}
|
|
|
|
func getPayload(t *testing.T, b string) string {
|
|
t.Helper()
|
|
parts := strings.Split(b, ".")
|
|
if len(parts) != 3 {
|
|
t.Fatalf("token did not have three parts: %v", b)
|
|
}
|
|
payload, err := base64.RawURLEncoding.DecodeString(parts[1])
|
|
if err != nil {
|
|
t.Fatalf("failed to base64 decode token: %v", err)
|
|
}
|
|
return string(payload)
|
|
}
|
|
|
|
func createDeleteSvcAcct(t *testing.T, cs clientset.Interface, sa *v1.ServiceAccount) (*v1.ServiceAccount, func()) {
|
|
t.Helper()
|
|
sa, err := cs.CoreV1().ServiceAccounts(sa.Namespace).Create(sa)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
return sa, func() {
|
|
t.Helper()
|
|
if err := cs.CoreV1().ServiceAccounts(sa.Namespace).Delete(sa.Name, nil); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func createDeletePod(t *testing.T, cs clientset.Interface, pod *v1.Pod) (*v1.Pod, func()) {
|
|
t.Helper()
|
|
pod, err := cs.CoreV1().Pods(pod.Namespace).Create(pod)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
return pod, func() {
|
|
t.Helper()
|
|
if err := cs.CoreV1().Pods(pod.Namespace).Delete(pod.Name, nil); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func createDeleteSecret(t *testing.T, cs clientset.Interface, sec *v1.Secret) (*v1.Secret, func()) {
|
|
t.Helper()
|
|
sec, err := cs.CoreV1().Secrets(sec.Namespace).Create(sec)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
return sec, func() {
|
|
t.Helper()
|
|
if err := cs.CoreV1().Secrets(sec.Namespace).Delete(sec.Name, nil); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
}
|
|
}
|