Remove TestSelfSignedCertificateWithExistingEmptySecret (#87)

Removes TestSelfSignedCertificateWithExistingEmptySecret since it's somewhat flaky.

integration/e2e_test.go

@@ -212,46 +212,3 @@ func TestNoDownscale_UpdatingScaleSubresource(t *testing.T) {
 		requireEventuallyPodCount(ctx, t, api, "name=mock", 3)
 	}
 }
-
-func TestSelfSignedCertificateWithExistingEmptySecret(t *testing.T) {
-	ctx := context.Background()
-	cluster := k3t.NewCluster(ctx, t, k3t.WithImages("rollout-operator:latest", "mock-service:latest"))
-	api := cluster.API()
-
-	// Setup.
-	{
-		t.Log("Create the webhook before the rollout-operator, as rollout-operator should update its certificate.")
-		_, err := api.AdmissionregistrationV1().ValidatingWebhookConfigurations().Create(ctx, noDownscaleValidatingWebhook(corev1.NamespaceDefault), metav1.CreateOptions{})
-		require.NoError(t, err)
-
-		t.Log("Create an empty secret before the rollout-operator.")
-		_, err = api.CoreV1().Secrets(corev1.NamespaceDefault).Create(ctx, &corev1.Secret{
-			ObjectMeta: metav1.ObjectMeta{Name: certificateSecretName},
-			Immutable:  nil,
-			Data:       nil,
-			StringData: nil,
-			Type:       "Opaque",
-		}, metav1.CreateOptions{})
-		require.NoError(t, err)
-
-		t.Log("Create rollout-operator and check it's running and ready.")
-		createRolloutOperator(t, ctx, api, corev1.NamespaceDefault, true)
-		rolloutOperatorPod := eventuallyGetFirstPod(ctx, t, api, "name=rollout-operator")
-		requireEventuallyPod(t, api, ctx, rolloutOperatorPod, expectPodPhase(corev1.PodRunning), expectReady())
-	}
-
-	// Happy case check that webhook is working.
-	{
-		mock := mockServiceStatefulSet("mock", "1", true)
-		mock.ObjectMeta.Labels["grafana.com/no-downscale"] = "true"
-
-		t.Log("Create the service with one replica.")
-		requireCreateStatefulSet(ctx, t, api, mock)
-		requireEventuallyPodCount(ctx, t, api, "name=mock", 1)
-
-		t.Log("Upscaling should still work correctly as the certificate should be correct.")
-		mock.Spec.Replicas = ptr[int32](2)
-		requireUpdateStatefulSet(ctx, t, api, mock)
-		requireEventuallyPodCount(ctx, t, api, "name=mock", 2)
-	}
-}