Improve error reporting in case of knative is required but not installed

pkg/apis/camel/v1/integration_types.go

@@ -164,6 +164,8 @@ const (
 	IntegrationConditionServiceAvailable IntegrationConditionType = "ServiceAvailable"
 	// IntegrationConditionKnativeServiceAvailable --
 	IntegrationConditionKnativeServiceAvailable IntegrationConditionType = "KnativeServiceAvailable"
+	// IntegrationConditionKnativeAvailable --
+	IntegrationConditionKnativeAvailable IntegrationConditionType = "KnativeAvailable"
 	// IntegrationConditionCronJobAvailable --
 	IntegrationConditionCronJobAvailable IntegrationConditionType = "CronJobAvailable"
 	// IntegrationConditionExposureAvailable --
@@ -203,6 +205,8 @@ const (
 	IntegrationConditionKnativeServiceAvailableReason string = "KnativeServiceAvailable"
 	// IntegrationConditionKnativeServiceNotAvailableReason --
 	IntegrationConditionKnativeServiceNotAvailableReason string = "KnativeServiceNotAvailable"
+	// IntegrationConditionKnativeNotInstalledReason --
+	IntegrationConditionKnativeNotInstalledReason string = "KnativeNotInstalled"
 	// IntegrationConditionCronJobAvailableReason --
 	IntegrationConditionCronJobAvailableReason string = "CronJobAvailableReason"
 	// IntegrationConditionCronJobNotAvailableReason --

pkg/trait/builder_test.go

@@ -31,6 +31,7 @@ import (
 	"github.com/apache/camel-k/v2/pkg/util/camel"
 	"github.com/apache/camel-k/v2/pkg/util/defaults"
 	"github.com/apache/camel-k/v2/pkg/util/kubernetes"
+	"github.com/apache/camel-k/v2/pkg/util/test"
 )
 
 func TestBuilderTraitNotAppliedBecauseOfNilKit(t *testing.T) {
@@ -106,11 +107,12 @@ func createBuilderTestEnv(cluster v1.IntegrationPlatformCluster, strategy v1.Int
 	if err != nil {
 		panic(err)
 	}
-
+	client, _ := test.NewFakeClient()
 	res := &Environment{
 		Ctx:          context.TODO(),
 		CamelCatalog: c,
 		Catalog:      NewCatalog(nil),
+		Client:       client,
 		Integration: &v1.Integration{
 			ObjectMeta: metav1.ObjectMeta{
 				Name:      "test",

pkg/trait/container.go

@@ -18,6 +18,7 @@ limitations under the License.
 package trait
 
 import (
+	"errors"
 	"fmt"
 	"path/filepath"
 
@@ -37,6 +38,7 @@ import (
 	"github.com/apache/camel-k/v2/pkg/util/defaults"
 	"github.com/apache/camel-k/v2/pkg/util/digest"
 	"github.com/apache/camel-k/v2/pkg/util/envvar"
+	"github.com/apache/camel-k/v2/pkg/util/knative"
 	"github.com/apache/camel-k/v2/pkg/util/kubernetes"
 )
 
@@ -74,6 +76,27 @@ func (t *containerTrait) Configure(e *Environment) (bool, error) {
 		return false, nil
 	}
 
+	knativeInstalled, _ := knative.IsInstalled(e.Client)
+	if e.IntegrationInPhase(v1.IntegrationPhaseInitialization) && !knativeInstalled {
+		hasKnativeEndpoint, err := containsEndpoint("knative", e, t.Client)
+		if err != nil {
+			return false, err
+		}
+
+		if hasKnativeEndpoint {
+			// fail fast the integration as there is no knative installed in the cluster
+			t.L.ForIntegration(e.Integration).Infof("Integration %s/%s contains knative endpoint that cannot run, as knative is not installed in the cluster.", e.Integration.Namespace, e.Integration.Name)
+			err := errors.New("integration cannot run, as knative is not installed in the cluster")
+			e.Integration.Status.SetCondition(
+				v1.IntegrationConditionKnativeAvailable,
+				corev1.ConditionFalse,
+				v1.IntegrationConditionKnativeNotInstalledReason,
+				err.Error())
+			e.Integration.Status.Phase = v1.IntegrationPhaseError
+			return false, err
+		}
+	}
+
 	if pointer.BoolDeref(t.Auto, true) {
 		if t.Expose == nil {
 			e := e.Resources.GetServiceForIntegration(e.Integration) != nil

pkg/trait/container_probes_test.go

@@ -29,6 +29,7 @@ import (
 	traitv1 "github.com/apache/camel-k/v2/pkg/apis/camel/v1/trait"
 	"github.com/apache/camel-k/v2/pkg/util/camel"
 	"github.com/apache/camel-k/v2/pkg/util/kubernetes"
+	"github.com/apache/camel-k/v2/pkg/util/test"
 )
 
 func newTestProbesEnv(t *testing.T, integration *v1.Integration) Environment {
@@ -38,11 +39,13 @@ func newTestProbesEnv(t *testing.T, integration *v1.Integration) Environment {
 	assert.Nil(t, err)
 	assert.NotNil(t, catalog)
 
+	client, _ := test.NewFakeClient()
 	traitCatalog := NewCatalog(nil)
 
 	return Environment{
 		Catalog:      traitCatalog,
 		CamelCatalog: catalog,
+		Client:       client,
 		Platform: &v1.IntegrationPlatform{
 			Status: v1.IntegrationPlatformStatus{
 				Phase: v1.IntegrationPlatformPhaseReady,

pkg/trait/container_test.go

@@ -27,6 +27,7 @@ import (
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/types"
+	"k8s.io/utils/pointer"
 
 	ctrl "sigs.k8s.io/controller-runtime/pkg/client"
 
@@ -41,11 +42,13 @@ func TestContainerWithDefaults(t *testing.T) {
 	catalog, err := camel.DefaultCatalog()
 	assert.Nil(t, err)
 
+	client, _ := test.NewFakeClient()
 	traitCatalog := NewCatalog(nil)
 
 	environment := Environment{
 		CamelCatalog: catalog,
 		Catalog:      traitCatalog,
+		Client:       client,
 		Integration: &v1.Integration{
 			ObjectMeta: metav1.ObjectMeta{
 				Name:      ServiceTestName,
@@ -100,11 +103,13 @@ func TestContainerWithCustomName(t *testing.T) {
 	catalog, err := camel.DefaultCatalog()
 	assert.Nil(t, err)
 
+	client, _ := test.NewFakeClient()
 	traitCatalog := NewCatalog(nil)
 
 	environment := Environment{
 		CamelCatalog: catalog,
 		Catalog:      traitCatalog,
+		Client:       client,
 		Integration: &v1.Integration{
 			ObjectMeta: metav1.ObjectMeta{
 				Name:      ServiceTestName,
@@ -339,3 +344,96 @@ func TestContainerWithImagePullPolicy(t *testing.T) {
 
 	assert.Equal(t, corev1.PullAlways, container.ImagePullPolicy)
 }
+
+func TestRunKnativeEndpointWithKnativeNotInstalled(t *testing.T) {
+
+	environment := createEnvironment()
+
+	trait, _ := newContainerTrait().(*containerTrait)
+	trait.Enabled = pointer.Bool(true)
+
+	environment.Integration.Spec.Sources = []v1.SourceSpec{
+		{
+			DataSpec: v1.DataSpec{
+				Name: "test.java",
+				Content: `
+				from("knative:channel/test").to("log:${body};
+			`,
+			},
+			Language: v1.LanguageJavaSource,
+		},
+	}
+	configured, err := trait.Configure(environment)
+	assert.NotNil(t, err)
+	assert.False(t, configured)
+	conditions := environment.Integration.Status.Conditions
+	assert.Len(t, conditions, 1)
+	assert.Equal(t, v1.IntegrationConditionKnativeNotInstalledReason, conditions[0].Reason)
+}
+
+func TestRunNonKnativeEndpointWithKnativeNotInstalled(t *testing.T) {
+
+	environment := createEnvironment()
+	trait, _ := newContainerTrait().(*containerTrait)
+	trait.Enabled = pointer.Bool(true)
+	environment.Integration.Spec.Sources = []v1.SourceSpec{
+		{
+			DataSpec: v1.DataSpec{
+				Name: "test.java",
+				Content: `
+				from("platform-http://my-site").to("log:${body}");
+			`,
+			},
+			Language: v1.LanguageJavaSource,
+		},
+	}
+
+	configured, err := trait.Configure(environment)
+	assert.Nil(t, err)
+	assert.True(t, configured)
+	conditions := environment.Integration.Status.Conditions
+	assert.Len(t, conditions, 0)
+}
+
+func createEnvironment() *Environment {
+
+	client, _ := test.NewFakeClient()
+	// disable the knative service api
+	fakeClient := client.(*test.FakeClient) //nolint
+	fakeClient.DisableAPIGroupDiscovery("serving.knative.dev/v1")
+
+	replicas := int32(3)
+	catalog, _ := camel.QuarkusCatalog()
+
+	environment := &Environment{
+		CamelCatalog: catalog,
+		Catalog:      NewCatalog(nil),
+		Client:       client,
+		Integration: &v1.Integration{
+			ObjectMeta: metav1.ObjectMeta{
+				Name: "integration-name",
+			},
+			Spec: v1.IntegrationSpec{
+				Replicas: &replicas,
+				Traits:   v1.Traits{},
+			},
+			Status: v1.IntegrationStatus{
+				Phase: v1.IntegrationPhaseInitialization,
+			},
+		},
+		Platform: &v1.IntegrationPlatform{
+			ObjectMeta: metav1.ObjectMeta{
+				Namespace: "namespace",
+			},
+			Spec: v1.IntegrationPlatformSpec{
+				Cluster: v1.IntegrationPlatformClusterKubernetes,
+				Profile: v1.TraitProfileKubernetes,
+			},
+		},
+		Resources:             kubernetes.NewCollection(),
+		ApplicationProperties: make(map[string]string),
+	}
+	environment.Platform.ResyncStatusFullConfig()
+
+	return environment
+}

pkg/trait/cron_test.go

@@ -34,6 +34,7 @@ import (
 	"github.com/apache/camel-k/v2/pkg/util"
 	"github.com/apache/camel-k/v2/pkg/util/camel"
 	"github.com/apache/camel-k/v2/pkg/util/kubernetes"
+	"github.com/apache/camel-k/v2/pkg/util/test"
 )
 
 func TestCronFromURI(t *testing.T) {
@@ -225,11 +226,13 @@ func TestCronDeps(t *testing.T) {
 	catalog, err := camel.DefaultCatalog()
 	assert.Nil(t, err)
 
+	client, _ := test.NewFakeClient()
 	traitCatalog := NewCatalog(nil)
 
 	environment := Environment{
 		CamelCatalog: catalog,
 		Catalog:      traitCatalog,
+		Client:       client,
 		Integration: &v1.Integration{
 			ObjectMeta: metav1.ObjectMeta{
 				Name:      "test",
@@ -298,11 +301,13 @@ func TestCronDepsFallback(t *testing.T) {
 	catalog, err := camel.DefaultCatalog()
 	assert.Nil(t, err)
 
+	client, _ := test.NewFakeClient()
 	traitCatalog := NewCatalog(nil)
 
 	environment := Environment{
 		CamelCatalog: catalog,
 		Catalog:      traitCatalog,
+		Client:       client,
 		Integration: &v1.Integration{
 			ObjectMeta: metav1.ObjectMeta{
 				Name:      "test",
@@ -376,11 +381,13 @@ func TestCronWithActiveDeadline(t *testing.T) {
 	catalog, err := camel.DefaultCatalog()
 	assert.Nil(t, err)
 
+	client, _ := test.NewFakeClient()
 	traitCatalog := NewCatalog(nil)
 
 	environment := Environment{
 		CamelCatalog: catalog,
 		Catalog:      traitCatalog,
+		Client:       client,
 		Integration: &v1.Integration{
 			ObjectMeta: metav1.ObjectMeta{
 				Name:      "test",
@@ -457,11 +464,13 @@ func TestCronWithBackoffLimit(t *testing.T) {
 	catalog, err := camel.DefaultCatalog()
 	assert.Nil(t, err)
 
+	client, _ := test.NewFakeClient()
 	traitCatalog := NewCatalog(nil)
 
 	environment := Environment{
 		CamelCatalog: catalog,
 		Catalog:      traitCatalog,
+		Client:       client,
 		Integration: &v1.Integration{
 			ObjectMeta: metav1.ObjectMeta{
 				Name:      "test",

pkg/trait/deployment.go

@@ -45,6 +45,7 @@ func newDeploymentTrait() Trait {
 }
 
 func (t *deploymentTrait) Configure(e *Environment) (bool, error) {
+
 	if !e.IntegrationInRunningPhases() {
 		return false, nil
 	}

pkg/trait/deployment_test.go

@@ -28,6 +28,7 @@ import (
 	"k8s.io/utils/pointer"
 
 	v1 "github.com/apache/camel-k/v2/pkg/apis/camel/v1"
+	"github.com/apache/camel-k/v2/pkg/util/camel"
 	"github.com/apache/camel-k/v2/pkg/util/kubernetes"
 	"github.com/apache/camel-k/v2/pkg/util/test"
 )
@@ -265,10 +266,17 @@ func createNominalDeploymentTest() (*deploymentTrait, *Environment) {
 		},
 	})
 
+	// disable the knative service api
+	fakeClient := trait.Client.(*test.FakeClient) //nolint
+	fakeClient.DisableAPIGroupDiscovery("serving.knative.dev/v1")
+
 	replicas := int32(3)
+	catalog, _ := camel.QuarkusCatalog()
 
 	environment := &Environment{
-		Catalog: NewCatalog(nil),
+		CamelCatalog: catalog,
+		Catalog:      NewCatalog(nil),
+		Client:       trait.Client,
 		Integration: &v1.Integration{
 			ObjectMeta: metav1.ObjectMeta{
 				Name: "integration-name",

pkg/trait/environment_test.go

@@ -31,6 +31,7 @@ import (
 	traitv1 "github.com/apache/camel-k/v2/pkg/apis/camel/v1/trait"
 	"github.com/apache/camel-k/v2/pkg/util/camel"
 	"github.com/apache/camel-k/v2/pkg/util/kubernetes"
+	"github.com/apache/camel-k/v2/pkg/util/test"
 )
 
 func TestDefaultEnvironment(t *testing.T) {
@@ -195,9 +196,11 @@ func NewEnvironmentTestCatalog() *Catalog {
 }
 
 func mockEnvironment(catalog *camel.RuntimeCatalog) Environment {
+	fakeClient, _ := test.NewFakeClient()
 	return Environment{
 		CamelCatalog: catalog,
 		Catalog:      NewCatalog(nil),
+		Client:       fakeClient,
 		Integration: &v1.Integration{
 			Status: v1.IntegrationStatus{
 				Phase: v1.IntegrationPhaseDeploying,

pkg/trait/istio_test.go

@@ -33,17 +33,19 @@ import (
 	traitv1 "github.com/apache/camel-k/v2/pkg/apis/camel/v1/trait"
 	"github.com/apache/camel-k/v2/pkg/util/camel"
 	"github.com/apache/camel-k/v2/pkg/util/kubernetes"
+	"github.com/apache/camel-k/v2/pkg/util/test"
 )
 
 func NewIstioTestEnv(t *testing.T, d *appsv1.Deployment, s *serving.Service, enabled bool) Environment {
 	t.Helper()
-
+	client, _ := test.NewFakeClient()
 	catalog, err := camel.DefaultCatalog()
 	assert.Nil(t, err)
 
 	env := Environment{
 		Catalog:      NewEnvironmentTestCatalog(),
 		CamelCatalog: catalog,
+		Client:       client,
 		Integration: &v1.Integration{
 			Status: v1.IntegrationStatus{
 				Phase: v1.IntegrationPhaseDeploying,