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test/integration/controlplane: add new apiserver identity test TestLeaseGarbageCollectionWithDeprecatedLabels
Signed-off-by: Andrew Sy Kim <andrewsy@google.com>
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parent
3da0f1809c
commit
423539cf96
@ -134,12 +134,54 @@ func TestLeaseGarbageCollection(t *testing.T) {
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t.Run("expired non-identity lease should not be garbage collected",
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testLeaseNotGarbageCollected(t, kubeclient, expiredLease))
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// identity leases (with k8s.io/component label) created in user namespaces should not be GC'ed
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// identity leases (with apiserver.kubernetes.io/identity label) created in user namespaces should not be GC'ed
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expiredNonKubeSystemLease := newTestLease(time.Now().Add(-2*time.Hour), metav1.NamespaceDefault)
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t.Run("expired non-system identity lease should not be garbage collected",
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testLeaseNotGarbageCollected(t, kubeclient, expiredNonKubeSystemLease))
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}
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func TestLeaseGarbageCollectionWithDeprecatedLabels(t *testing.T) {
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oldIdentityLeaseDurationSeconds := controlplane.IdentityLeaseDurationSeconds
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oldIdentityLeaseGCPeriod := controlplane.IdentityLeaseGCPeriod
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oldIdentityLeaseRenewIntervalPeriod := controlplane.IdentityLeaseRenewIntervalPeriod
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defer func() {
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// reset the default values for leases after this test
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controlplane.IdentityLeaseDurationSeconds = oldIdentityLeaseDurationSeconds
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controlplane.IdentityLeaseGCPeriod = oldIdentityLeaseGCPeriod
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controlplane.IdentityLeaseRenewIntervalPeriod = oldIdentityLeaseRenewIntervalPeriod
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}()
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// Shorten lease parameters so GC behavior can be exercised in integration tests
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controlplane.IdentityLeaseDurationSeconds = 1
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controlplane.IdentityLeaseGCPeriod = time.Second
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controlplane.IdentityLeaseRenewIntervalPeriod = time.Second
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defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.APIServerIdentity, true)()
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result := kubeapiservertesting.StartTestServerOrDie(t, nil, nil, framework.SharedEtcd())
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defer result.TearDownFn()
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kubeclient, err := kubernetes.NewForConfig(result.ClientConfig)
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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expiredLease := newTestLeaseWithDeprecatedLabels(time.Now().Add(-2*time.Hour), metav1.NamespaceSystem)
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t.Run("expired apiserver lease should be garbage collected",
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testLeaseGarbageCollected(t, kubeclient, expiredLease))
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freshLease := newTestLeaseWithDeprecatedLabels(time.Now().Add(-2*time.Minute), metav1.NamespaceSystem)
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t.Run("fresh apiserver lease should not be garbage collected",
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testLeaseNotGarbageCollected(t, kubeclient, freshLease))
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expiredLease.Labels = nil
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t.Run("expired non-identity lease should not be garbage collected",
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testLeaseNotGarbageCollected(t, kubeclient, expiredLease))
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// identity leases (with k8s.io/component label) created in user namespaces should not be GC'ed
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expiredNonKubeSystemLease := newTestLeaseWithDeprecatedLabels(time.Now().Add(-2*time.Hour), metav1.NamespaceDefault)
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t.Run("expired non-system identity lease should not be garbage collected",
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testLeaseNotGarbageCollected(t, kubeclient, expiredNonKubeSystemLease))
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}
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func testLeaseGarbageCollected(t *testing.T, client kubernetes.Interface, lease *coordinationv1.Lease) func(t *testing.T) {
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return func(t *testing.T) {
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ns := lease.Namespace
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@ -203,3 +245,21 @@ func newTestLease(acquireTime time.Time, namespace string) *coordinationv1.Lease
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},
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}
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}
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func newTestLeaseWithDeprecatedLabels(acquireTime time.Time, namespace string) *coordinationv1.Lease {
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return &coordinationv1.Lease{
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ObjectMeta: metav1.ObjectMeta{
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Name: testLeaseName,
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Namespace: namespace,
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Labels: map[string]string{
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"k8s.io/component": "kube-apiserver",
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},
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},
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Spec: coordinationv1.LeaseSpec{
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HolderIdentity: pointer.StringPtr(testLeaseName),
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LeaseDurationSeconds: pointer.Int32Ptr(3600),
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AcquireTime: &metav1.MicroTime{Time: acquireTime},
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RenewTime: &metav1.MicroTime{Time: acquireTime},
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},
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}
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}
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