chore(tests): disable KIC admission webhook for TestKongPluginInstall…

…ationEssentials

test/helpers/generators.go

@@ -65,9 +65,11 @@ func GenerateGateway(gatewayNSN types.NamespacedName, gatewayClass *gatewayv1.Ga
 	return gateway
 }
 
+type gatewayConfigurationOption func(*operatorv1beta1.GatewayConfiguration)
+
 // GenerateGatewayConfiguration generates a GatewayConfiguration to be used in tests
-func GenerateGatewayConfiguration(namespace string) *operatorv1beta1.GatewayConfiguration {
-	return &operatorv1beta1.GatewayConfiguration{
+func GenerateGatewayConfiguration(namespace string, opts ...gatewayConfigurationOption) *operatorv1beta1.GatewayConfiguration {
+	gwc := &operatorv1beta1.GatewayConfiguration{
 		ObjectMeta: metav1.ObjectMeta{
 			Namespace: namespace,
 			Name:      uuid.NewString(),
@@ -139,6 +141,20 @@ func GenerateGatewayConfiguration(namespace string) *operatorv1beta1.GatewayConf
 			},
 		},
 	}
+	for _, opt := range opts {
+		opt(gwc)
+	}
+	return gwc
+}
+
+// WithWebhookDisabled disables the admission webhook for the control plane
+func WithWebhookDisabled() func(*operatorv1beta1.GatewayConfiguration) {
+	return func(gc *operatorv1beta1.GatewayConfiguration) {
+		gc.Spec.ControlPlaneOptions.Deployment.PodTemplateSpec.Spec.Containers[0].Env = append(gc.Spec.ControlPlaneOptions.Deployment.PodTemplateSpec.Spec.Containers[0].Env, corev1.EnvVar{
+			Name:  "CONTROLLER_ADMISSION_WEBHOOK_LISTEN",
+			Value: "off",
+		})
+	}
 }
 
 // GenerateHTTPRoute generates an HTTPRoute to be used in tests

test/integration/test_kongplugininstallation.go

@@ -31,11 +31,6 @@ import (
 )
 
 func TestKongPluginInstallationEssentials(t *testing.T) {
-	if webhookEnabled {
-		// It can't be tested with webhook, because it rejects resources immediately, that would
-		// be accepted by the controller taking into account the eventual consistency nature of K8s.
-		t.Skip("webhook is enabled, skipping the test (due to webhook validation limitations)")
-	}
 	namespace, cleaner := helpers.SetupTestEnv(t, GetCtx(), GetEnv())
 
 	const registryUrl = "northamerica-northeast1-docker.pkg.dev/k8s-team-playground/"
@@ -212,7 +207,9 @@ func TestKongPluginInstallationEssentials(t *testing.T) {
 func deployGatewayWithKPI(
 	t *testing.T, cleaner *clusters.Cleaner, namespace string,
 ) (gatewayIPAddress string, gatewayConfigNN, httpRouteNN k8stypes.NamespacedName) {
-	gatewayConfig := helpers.GenerateGatewayConfiguration(namespace)
+	// NOTE: Disable webhook for KIC, because it checks for the plugin in Kong Gateway and rejects,
+	// thus it requires strict order of deployment.
+	gatewayConfig := helpers.GenerateGatewayConfiguration(namespace, helpers.WithWebhookDisabled())
 	t.Logf("deploying GatewayConfiguration %s/%s", gatewayConfig.Namespace, gatewayConfig.Name)
 	gatewayConfig, err := GetClients().OperatorClient.ApisV1beta1().GatewayConfigurations(namespace).Create(GetCtx(), gatewayConfig, metav1.CreateOptions{})
 	require.NoError(t, err)