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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| /* | ||
| Copyright 2023 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 peerproxy | ||
|
|
||
| import ( | ||
| "testing" | ||
|
|
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| "k8s.io/kubernetes/test/integration/framework" | ||
| ) | ||
|
|
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| func TestMain(m *testing.M) { | ||
| framework.EtcdMain(m.Run) | ||
| } |
244 changes: 244 additions & 0 deletions
244
test/integration/apiserver/peerproxy/peer_proxy_test.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,244 @@ | ||
| /* | ||
| Copyright 2023 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 peerproxy | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "testing" | ||
| "time" | ||
|
|
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| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| v1 "k8s.io/api/batch/v1" | ||
| corev1 "k8s.io/api/core/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/util/wait" | ||
| "k8s.io/apiserver/pkg/features" | ||
| "k8s.io/apiserver/pkg/server" | ||
| utilfeature "k8s.io/apiserver/pkg/util/feature" | ||
| "k8s.io/client-go/informers" | ||
| "k8s.io/client-go/kubernetes" | ||
| "k8s.io/client-go/transport" | ||
| "k8s.io/client-go/util/cert" | ||
| featuregatetesting "k8s.io/component-base/featuregate/testing" | ||
| "k8s.io/klog/v2" | ||
| kastesting "k8s.io/kubernetes/cmd/kube-apiserver/app/testing" | ||
| "k8s.io/kubernetes/pkg/controller/storageversiongc" | ||
| "k8s.io/kubernetes/pkg/controlplane" | ||
| kubefeatures "k8s.io/kubernetes/pkg/features" | ||
|
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| "k8s.io/kubernetes/test/integration/framework" | ||
| testutil "k8s.io/kubernetes/test/utils" | ||
| "k8s.io/kubernetes/test/utils/ktesting" | ||
| ) | ||
|
|
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| func TestPeerProxiedRequest(t *testing.T) { | ||
|
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| ktesting.SetDefaultVerbosity(1) | ||
| ctx, cancel := context.WithTimeout(context.Background(), 5*time.Minute) | ||
| t.Cleanup(cancel) | ||
|
|
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| // ensure to stop cert reloading after shutdown | ||
| transport.DialerStopCh = ctx.Done() | ||
|
|
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| // enable feature flags | ||
| defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.APIServerIdentity, true)() | ||
| defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.StorageVersionAPI, true)() | ||
| defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, kubefeatures.UnknownVersionInteroperabilityProxy, true)() | ||
|
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| // create sharedetcd | ||
| etcd := framework.SharedEtcd() | ||
|
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| // create certificates for aggregation and client-cert auth | ||
| proxyCA, err := createProxyCertContent() | ||
| require.NoError(t, err) | ||
|
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| // start test server with all APIs enabled | ||
| // override hostname to ensure unique ips | ||
| server.SetHostnameFuncForTests("test-server-a") | ||
| serverA := kastesting.StartTestServerOrDie(t, &kastesting.TestServerInstanceOptions{ | ||
| EnableCertAuth: true, | ||
| ProxyCA: &proxyCA}, | ||
| []string{}, etcd) | ||
| defer serverA.TearDownFn() | ||
|
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| // start another test server with some api disabled | ||
| // override hostname to ensure unique ips | ||
| server.SetHostnameFuncForTests("test-server-b") | ||
| serverB := kastesting.StartTestServerOrDie(t, &kastesting.TestServerInstanceOptions{ | ||
| EnableCertAuth: true, | ||
| ProxyCA: &proxyCA}, | ||
| []string{fmt.Sprintf("--runtime-config=%s", "batch/v1=false")}, etcd) | ||
| defer serverB.TearDownFn() | ||
|
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| kubeClientSetA, err := kubernetes.NewForConfig(serverA.ClientConfig) | ||
| require.NoError(t, err) | ||
|
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| kubeClientSetB, err := kubernetes.NewForConfig(serverB.ClientConfig) | ||
| require.NoError(t, err) | ||
|
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| // create jobs resource using serverA | ||
| job := createJobResource() | ||
| _, err = kubeClientSetA.BatchV1().Jobs("default").Create(context.Background(), job, metav1.CreateOptions{}) | ||
| require.NoError(t, err) | ||
|
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| klog.Infof("\nServerA has created jobs\n") | ||
|
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| // List jobs using ServerB | ||
| // This request should be proxied to ServerA since ServerB does not have batch API enabled | ||
| jobsB, err := kubeClientSetB.BatchV1().Jobs("default").List(context.Background(), metav1.ListOptions{}) | ||
| klog.Infof("\nServerB has retrieved jobs list of length %v \n\n", len(jobsB.Items)) | ||
| require.NoError(t, err) | ||
| assert.NotEmpty(t, jobsB) | ||
| assert.Equal(t, job.Name, jobsB.Items[0].Name) | ||
| } | ||
|
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| func TestPeerProxiedRequestToThirdServerAfterFirstDies(t *testing.T) { | ||
|
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| ktesting.SetDefaultVerbosity(1) | ||
| ctx, cancel := context.WithTimeout(context.Background(), 5*time.Minute) | ||
| t.Cleanup(cancel) | ||
|
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| // ensure to stop cert reloading after shutdown | ||
| transport.DialerStopCh = ctx.Done() | ||
|
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| // enable feature flags | ||
| defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.APIServerIdentity, true)() | ||
| defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.StorageVersionAPI, true)() | ||
| defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, kubefeatures.UnknownVersionInteroperabilityProxy, true)() | ||
|
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| // create sharedetcd | ||
| etcd := framework.SharedEtcd() | ||
|
|
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| // create certificates for aggregation and client-cert auth | ||
| proxyCA, err := createProxyCertContent() | ||
| require.NoError(t, err) | ||
|
|
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| // set lease duration to 1s for serverA to ensure that storageversions for serverA are updated | ||
| // once it is shutdown | ||
| controlplane.IdentityLeaseDurationSeconds = 10 | ||
| controlplane.IdentityLeaseGCPeriod = time.Second | ||
| controlplane.IdentityLeaseRenewIntervalPeriod = 10 * time.Second | ||
|
|
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| // start serverA with all APIs enabled | ||
| // override hostname to ensure unique ips | ||
| server.SetHostnameFuncForTests("test-server-a") | ||
| serverA := kastesting.StartTestServerOrDie(t, &kastesting.TestServerInstanceOptions{EnableCertAuth: true, ProxyCA: &proxyCA}, []string{}, etcd) | ||
| kubeClientSetA, err := kubernetes.NewForConfig(serverA.ClientConfig) | ||
| require.NoError(t, err) | ||
| // ensure storageversion garbage collector ctlr is set up | ||
| informersA := informers.NewSharedInformerFactory(kubeClientSetA, time.Second) | ||
| setupStorageVersionGC(ctx, kubeClientSetA, informersA) | ||
| // reset lease duration to default value for serverB and serverC since we will not be | ||
| // shutting these down | ||
| controlplane.IdentityLeaseDurationSeconds = 3600 | ||
|
|
||
| // start serverB with some api disabled | ||
| // override hostname to ensure unique ips | ||
| server.SetHostnameFuncForTests("test-server-b") | ||
| serverB := kastesting.StartTestServerOrDie(t, &kastesting.TestServerInstanceOptions{EnableCertAuth: true, ProxyCA: &proxyCA}, []string{ | ||
| fmt.Sprintf("--runtime-config=%v", "batch/v1=false")}, etcd) | ||
| defer serverB.TearDownFn() | ||
| kubeClientSetB, err := kubernetes.NewForConfig(serverB.ClientConfig) | ||
| require.NoError(t, err) | ||
| // ensure storageversion garbage collector ctlr is set up | ||
| informersB := informers.NewSharedInformerFactory(kubeClientSetB, time.Second) | ||
| setupStorageVersionGC(ctx, kubeClientSetB, informersB) | ||
|
|
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| // start serverC with all APIs enabled | ||
| // override hostname to ensure unique ips | ||
| server.SetHostnameFuncForTests("test-server-c") | ||
| serverC := kastesting.StartTestServerOrDie(t, &kastesting.TestServerInstanceOptions{EnableCertAuth: true, ProxyCA: &proxyCA}, []string{}, etcd) | ||
| defer serverC.TearDownFn() | ||
|
|
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| // create jobs resource using serverA | ||
| job := createJobResource() | ||
| _, err = kubeClientSetA.BatchV1().Jobs("default").Create(context.Background(), job, metav1.CreateOptions{}) | ||
| require.NoError(t, err) | ||
| klog.Infof("\nServerA has created jobs\n") | ||
|
|
||
| // shutdown serverA | ||
| serverA.TearDownFn() | ||
|
|
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| var jobsB *v1.JobList | ||
| // list jobs using ServerB which it should proxy to ServerC and get back valid response | ||
| err = wait.PollImmediate(1*time.Second, 1*time.Minute, func() (bool, error) { | ||
| jobsB, err = kubeClientSetB.BatchV1().Jobs("default").List(context.Background(), metav1.ListOptions{}) | ||
| if err != nil { | ||
| return false, nil | ||
| } | ||
| if jobsB != nil { | ||
| return true, nil | ||
| } | ||
| return false, nil | ||
| }) | ||
| klog.Infof("\nServerB has retrieved jobs list of length %v \n\n", len(jobsB.Items)) | ||
| require.NoError(t, err) | ||
| assert.NotEmpty(t, jobsB) | ||
| assert.Equal(t, job.Name, jobsB.Items[0].Name) | ||
| } | ||
|
|
||
| func setupStorageVersionGC(ctx context.Context, kubeClientSet *kubernetes.Clientset, informers informers.SharedInformerFactory) { | ||
| leaseInformer := informers.Coordination().V1().Leases() | ||
| storageVersionInformer := informers.Internal().V1alpha1().StorageVersions() | ||
| go leaseInformer.Informer().Run(ctx.Done()) | ||
| go storageVersionInformer.Informer().Run(ctx.Done()) | ||
|
|
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| controller := storageversiongc.NewStorageVersionGC(ctx, kubeClientSet, leaseInformer, storageVersionInformer) | ||
| go controller.Run(ctx) | ||
| } | ||
|
|
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| func createProxyCertContent() (kastesting.ProxyCA, error) { | ||
| result := kastesting.ProxyCA{} | ||
| proxySigningKey, err := testutil.NewPrivateKey() | ||
| if err != nil { | ||
| return result, err | ||
| } | ||
| proxySigningCert, err := cert.NewSelfSignedCACert(cert.Config{CommonName: "front-proxy-ca"}, proxySigningKey) | ||
| if err != nil { | ||
| return result, err | ||
| } | ||
|
|
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| result = kastesting.ProxyCA{ | ||
| ProxySigningCert: proxySigningCert, | ||
| ProxySigningKey: proxySigningKey, | ||
| } | ||
| return result, nil | ||
| } | ||
|
|
||
| func createJobResource() *v1.Job { | ||
| return &v1.Job{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "test-job", | ||
| Namespace: "default", | ||
| }, | ||
| Spec: v1.JobSpec{ | ||
| Template: corev1.PodTemplateSpec{ | ||
| Spec: corev1.PodSpec{ | ||
| Containers: []corev1.Container{ | ||
| { | ||
| Name: "test", | ||
| Image: "test", | ||
| }, | ||
| }, | ||
| RestartPolicy: corev1.RestartPolicyNever, | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| } |