Make discovery check Kind availability

Signed-off-by: Lucas Caparelli <lucas.caparelli112@gmail.com>

controllers/nexus/resource/deployment/manager.go

@@ -28,12 +28,13 @@ import (
 
 	"github.com/m88i/nexus-operator/api/v1alpha1"
 	"github.com/m88i/nexus-operator/pkg/framework"
+	"github.com/m88i/nexus-operator/pkg/framework/kind"
 	"github.com/m88i/nexus-operator/pkg/logger"
 )
 
 var managedObjectsRef = map[string]resource.KubernetesResource{
-	framework.DeploymentKind: &appsv1.Deployment{},
-	framework.ServiceKind:    &corev1.Service{},
+	kind.DeploymentKind: &appsv1.Deployment{},
+	kind.ServiceKind:    &corev1.Service{},
 }
 
 // Manager is responsible for creating deployment-related resources, fetching deployed ones and comparing them
@@ -56,8 +57,8 @@ func NewManager(nexus *v1alpha1.Nexus, client client.Client) *Manager {
 
 // GetRequiredResources returns the resources initialized by the manager
 func (m *Manager) GetRequiredResources() ([]resource.KubernetesResource, error) {
-	m.log.Debug("Generating required resource", "kind", framework.DeploymentKind)
-	m.log.Debug("Generating required resource", "kind", framework.ServiceKind)
+	m.log.Debug("Generating required resource", "kind", kind.DeploymentKind)
+	m.log.Debug("Generating required resource", "kind", kind.ServiceKind)
 	return []resource.KubernetesResource{newDeployment(m.nexus), newService(m.nexus)}, nil
 }
 

controllers/nexus/resource/networking/manager.go

@@ -28,6 +28,7 @@ import (
 	"github.com/m88i/nexus-operator/api/v1alpha1"
 	"github.com/m88i/nexus-operator/pkg/cluster/discovery"
 	"github.com/m88i/nexus-operator/pkg/framework"
+	"github.com/m88i/nexus-operator/pkg/framework/kind"
 	"github.com/m88i/nexus-operator/pkg/logger"
 )
 
@@ -79,15 +80,15 @@ func NewManager(nexus *v1alpha1.Nexus, client client.Client) (*Manager, error) {
 
 	if ingressAvailable {
 		mgr.ingressAvailable = true
-		mgr.managedObjectsRef[framework.IngressKind] = &networkingv1.Ingress{}
+		mgr.managedObjectsRef[kind.IngressKind] = &networkingv1.Ingress{}
 	} else if legacyIngressAvailable {
 		mgr.legacyIngressAvailable = true
-		mgr.managedObjectsRef[framework.IngressKind] = &networkingv1beta1.Ingress{}
+		mgr.managedObjectsRef[kind.IngressKind] = &networkingv1beta1.Ingress{}
 	}
 
 	if routeAvailable {
 		mgr.routeAvailable = true
-		mgr.managedObjectsRef[framework.RouteKind] = &routev1.Route{}
+		mgr.managedObjectsRef[kind.RouteKind] = &routev1.Route{}
 	}
 
 	return mgr, nil
@@ -106,7 +107,7 @@ func (m *Manager) GetRequiredResources() ([]resource.KubernetesResource, error)
 			return nil, fmt.Errorf(resUnavailableFormat, "routes")
 		}
 
-		m.log.Debug("Generating required resource", "kind", framework.RouteKind)
+		m.log.Debug("Generating required resource", "kind", kind.RouteKind)
 		route := m.createRoute()
 		resources = append(resources, route)
 
@@ -115,7 +116,7 @@ func (m *Manager) GetRequiredResources() ([]resource.KubernetesResource, error)
 			return nil, fmt.Errorf(resUnavailableFormat, "ingresses")
 		}
 
-		m.log.Debug("Generating required resource", "kind", framework.IngressKind)
+		m.log.Debug("Generating required resource", "kind", kind.IngressKind)
 		ingress := m.createIngress()
 		resources = append(resources, ingress)
 	}

controllers/nexus/resource/networking/manager_test.go

@@ -32,7 +32,7 @@ import (
 	"github.com/m88i/nexus-operator/api/v1alpha1"
 	"github.com/m88i/nexus-operator/controllers/nexus/resource/deployment"
 	"github.com/m88i/nexus-operator/pkg/cluster/discovery"
-	"github.com/m88i/nexus-operator/pkg/framework"
+	"github.com/m88i/nexus-operator/pkg/framework/kind"
 	"github.com/m88i/nexus-operator/pkg/logger"
 	"github.com/m88i/nexus-operator/pkg/test"
 )
@@ -65,7 +65,7 @@ func TestNewManager(t *testing.T) {
 				ingressAvailable:       true,
 				legacyIngressAvailable: false,
 				managedObjectsRef: map[string]resource.KubernetesResource{
-					framework.IngressKind: &networkingv1.Ingress{},
+					kind.IngressKind: &networkingv1.Ingress{},
 				},
 			},
 			k8sClientWithIngress,
@@ -78,7 +78,7 @@ func TestNewManager(t *testing.T) {
 				ingressAvailable:       false,
 				legacyIngressAvailable: true,
 				managedObjectsRef: map[string]resource.KubernetesResource{
-					framework.IngressKind: &networkingv1beta1.Ingress{},
+					kind.IngressKind: &networkingv1beta1.Ingress{},
 				},
 			},
 			k8sClientWithLegacyIngress,
@@ -102,7 +102,7 @@ func TestNewManager(t *testing.T) {
 				ingressAvailable:       false,
 				legacyIngressAvailable: false,
 				managedObjectsRef: map[string]resource.KubernetesResource{
-					framework.RouteKind: &routev1.Route{},
+					kind.RouteKind: &routev1.Route{},
 				},
 			},
 			ocpClient,
@@ -240,8 +240,8 @@ func TestManager_GetDeployedResources(t *testing.T) {
 		ingressAvailable: true,
 		routeAvailable:   true,
 		managedObjectsRef: map[string]resource.KubernetesResource{
-			framework.RouteKind:   &routev1.Route{},
-			framework.IngressKind: &networkingv1.Ingress{},
+			kind.RouteKind:   &routev1.Route{},
+			kind.IngressKind: &networkingv1.Ingress{},
 		},
 	}
 	resources, err := mgr.GetDeployedResources()

controllers/nexus/resource/persistence/manager.go

@@ -25,11 +25,12 @@ import (
 
 	"github.com/m88i/nexus-operator/api/v1alpha1"
 	"github.com/m88i/nexus-operator/pkg/framework"
+	"github.com/m88i/nexus-operator/pkg/framework/kind"
 	"github.com/m88i/nexus-operator/pkg/logger"
 )
 
 var managedObjectsRef = map[string]resource.KubernetesResource{
-	framework.PVCKind: &corev1.PersistentVolumeClaim{},
+	kind.PVCKind: &corev1.PersistentVolumeClaim{},
 }
 
 // Manager is responsible for creating persistence resources, fetching deployed ones and comparing them
@@ -57,7 +58,7 @@ func (m *Manager) GetRequiredResources() ([]resource.KubernetesResource, error)
 		return resources, nil
 	}
 
-	m.log.Debug("Generating required resource", "kind", framework.PVCKind)
+	m.log.Debug("Generating required resource", "kind", kind.PVCKind)
 	pvc := newPVC(m.nexus)
 	resources = append(resources, pvc)
 

controllers/nexus/resource/security/manager.go

@@ -25,12 +25,13 @@ import (
 
 	"github.com/m88i/nexus-operator/api/v1alpha1"
 	"github.com/m88i/nexus-operator/pkg/framework"
+	"github.com/m88i/nexus-operator/pkg/framework/kind"
 	"github.com/m88i/nexus-operator/pkg/logger"
 )
 
 var managedObjectsRef = map[string]resource.KubernetesResource{
-	framework.SecretKind:     &core.Secret{},
-	framework.SvcAccountKind: &core.ServiceAccount{},
+	kind.SecretKind:     &core.Secret{},
+	kind.SvcAccountKind: &core.ServiceAccount{},
 }
 
 // Manager is responsible for creating security resources, fetching deployed ones and comparing them
@@ -52,8 +53,8 @@ func NewManager(nexus *v1alpha1.Nexus, client client.Client) *Manager {
 
 // GetRequiredResources returns the resources initialized by the Manager
 func (m *Manager) GetRequiredResources() ([]resource.KubernetesResource, error) {
-	m.log.Debug("Generating required resource", "kind", framework.SvcAccountKind)
-	m.log.Debug("Generating required resource", "kind", framework.SecretKind)
+	m.log.Debug("Generating required resource", "kind", kind.SvcAccountKind)
+	m.log.Debug("Generating required resource", "kind", kind.SecretKind)
 	return []resource.KubernetesResource{defaultServiceAccount(m.nexus), defaultSecret(m.nexus)}, nil
 }
 

controllers/nexus/resource/security/manager_test.go

@@ -20,6 +20,7 @@ import (
 	"reflect"
 	"testing"
 
+	"github.com/m88i/nexus-operator/pkg/framework/kind"
 	"github.com/m88i/nexus-operator/pkg/logger"
 
 	"github.com/stretchr/testify/assert"
@@ -102,13 +103,13 @@ func TestManager_getDeployedSvcAccnt(t *testing.T) {
 	}
 
 	// first, test without creating the svcAccnt
-	err := framework.Fetch(mgr.client, framework.Key(mgr.nexus), managedObjectsRef[framework.SvcAccountKind], framework.SvcAccountKind)
+	err := framework.Fetch(mgr.client, framework.Key(mgr.nexus), managedObjectsRef[kind.SvcAccountKind], kind.SvcAccountKind)
 	assert.True(t, errors.IsNotFound(err))
 
 	// now test after creating the svcAccnt
 	svcAccnt := &corev1.ServiceAccount{ObjectMeta: metav1.ObjectMeta{Name: mgr.nexus.Name, Namespace: mgr.nexus.Namespace}}
 	assert.NoError(t, mgr.client.Create(ctx.TODO(), svcAccnt))
-	err = framework.Fetch(mgr.client, framework.Key(svcAccnt), svcAccnt, framework.SvcAccountKind)
+	err = framework.Fetch(mgr.client, framework.Key(svcAccnt), svcAccnt, kind.SvcAccountKind)
 	assert.NotNil(t, svcAccnt)
 	assert.NoError(t, err)
 }

controllers/nexus/server/users.go

@@ -22,6 +22,7 @@ import (
 	corev1 "k8s.io/api/core/v1"
 
 	"github.com/m88i/nexus-operator/pkg/framework"
+	"github.com/m88i/nexus-operator/pkg/framework/kind"
 )
 
 const (
@@ -107,7 +108,7 @@ func (u *userOperation) createOperatorUserIfNotExists() (*nexus.User, error) {
 func (u *userOperation) storeOperatorUserCredentials(user *nexus.User) error {
 	secret := &corev1.Secret{}
 	log.Debug("Attempt to store operator user credentials into Secret")
-	if err := framework.Fetch(u.k8sclient, framework.Key(u.nexus), secret, framework.SecretKind); err != nil {
+	if err := framework.Fetch(u.k8sclient, framework.Key(u.nexus), secret, kind.SecretKind); err != nil {
 		return err
 	}
 	if secret.StringData == nil {
@@ -124,7 +125,7 @@ func (u *userOperation) storeOperatorUserCredentials(user *nexus.User) error {
 
 func (u *userOperation) getOperatorUserCredentials() (user, password string, err error) {
 	secret := &corev1.Secret{}
-	if err := framework.Fetch(u.k8sclient, framework.Key(u.nexus), secret, framework.SecretKind); err != nil {
+	if err := framework.Fetch(u.k8sclient, framework.Key(u.nexus), secret, kind.SecretKind); err != nil {
 		return "", "", err
 	}
 	return string(secret.Data[SecretKeyUsername]), string(secret.Data[SecretKeyPassword]), nil

pkg/cluster/discovery/discovery.go

@@ -15,6 +15,7 @@
 package discovery
 
 import (
+	"fmt"
 	"strings"
 
 	"k8s.io/client-go/discovery"
@@ -62,3 +63,21 @@ func hasGroupVersion(group, version string) (bool, error) {
 	}
 	return false, nil
 }
+
+// hasGroupVersionKind checks if the given group name, version and kind is available in the cluster
+func hasGroupVersionKind(group, version, kind string) (bool, error) {
+	if hasGroupVersion, err := hasGroupVersion(group, version); err != nil || !hasGroupVersion {
+		return false, err
+	}
+
+	resources, err := cli.ServerResourcesForGroupVersion(fmt.Sprintf("%s/%s", group, version))
+	if err != nil {
+		return false, err
+	}
+	for _, resource := range resources.APIResources {
+		if resource.Kind == kind {
+			return true, nil
+		}
+	}
+	return false, nil
+}

pkg/cluster/discovery/kubernetes.go

@@ -17,14 +17,16 @@ package discovery
 import (
 	networkingv1 "k8s.io/api/networking/v1"
 	networkingv1beta1 "k8s.io/api/networking/v1beta1"
+
+	"github.com/m88i/nexus-operator/pkg/framework/kind"
 )
 
 // IsIngressAvailable checks if the cluster supports Ingresses from k8s.io/api/networking/v1
 func IsIngressAvailable() (bool, error) {
-	return hasGroupVersion(networkingv1.GroupName, networkingv1.SchemeGroupVersion.Version)
+	return hasGroupVersionKind(networkingv1.SchemeGroupVersion.Group, networkingv1.SchemeGroupVersion.Version, kind.IngressKind)
 }
 
 // IsLegacyIngressAvailable checks if the cluster supports Ingresses from k8s.io/api/networking/v1beta1
 func IsLegacyIngressAvailable() (bool, error) {
-	return hasGroupVersion(networkingv1beta1.GroupName, networkingv1beta1.SchemeGroupVersion.Version)
+	return hasGroupVersionKind(networkingv1beta1.SchemeGroupVersion.Group, networkingv1beta1.SchemeGroupVersion.Version, kind.IngressKind)
 }

pkg/cluster/discovery/openshift.go

@@ -16,6 +16,8 @@ package discovery
 
 import (
 	routev1 "github.com/openshift/api/route/v1"
+
+	"github.com/m88i/nexus-operator/pkg/framework/kind"
 )
 
 const (
@@ -29,5 +31,5 @@ func IsOpenShift() (bool, error) {
 
 // IsRouteAvailable verifies if the current cluster has the Route API from OpenShift available
 func IsRouteAvailable() (bool, error) {
-	return hasGroupVersion(routev1.GroupName, routev1.GroupVersion.Version)
+	return hasGroupVersionKind(routev1.GroupVersion.Group, routev1.GroupVersion.Version, kind.RouteKind)
 }

pkg/framework/fetcher_test.go

@@ -26,6 +26,7 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 
 	"github.com/m88i/nexus-operator/api/v1alpha1"
+	"github.com/m88i/nexus-operator/pkg/framework/kind"
 	"github.com/m88i/nexus-operator/pkg/test"
 )
 
@@ -34,10 +35,10 @@ func TestFetchDeployedResources(t *testing.T) {
 	deployment := &appsv1.Deployment{ObjectMeta: nexus.ObjectMeta}
 	service := &corev1.Service{ObjectMeta: nexus.ObjectMeta}
 	managedObjectsRef := map[string]resource.KubernetesResource{
-		ServiceKind:    &corev1.Service{},
-		DeploymentKind: &appsv1.Deployment{},
+		kind.ServiceKind:    &corev1.Service{},
+		kind.DeploymentKind: &appsv1.Deployment{},
 		// we won't have a SA, but this is useful to test no error is triggered when a resource isn't found
-		SvcAccountKind: &corev1.ServiceAccount{},
+		kind.SvcAccountKind: &corev1.ServiceAccount{},
 	}
 	cli := test.NewFakeClientBuilder(deployment, service).Build()
 
@@ -50,7 +51,7 @@ func TestFetchDeployedResources(t *testing.T) {
 func TestFetchDeployedResourcesFailure(t *testing.T) {
 	nexus := &v1alpha1.Nexus{ObjectMeta: metav1.ObjectMeta{Name: "nexus-test", Namespace: t.Name()}}
 	// managedObjectsRef cannot be empty in order to raise error, the content is irrelevant though
-	managedObjectsRef := map[string]resource.KubernetesResource{DeploymentKind: &appsv1.Deployment{}}
+	managedObjectsRef := map[string]resource.KubernetesResource{kind.DeploymentKind: &appsv1.Deployment{}}
 	cli := test.NewFakeClientBuilder().Build()
 	mockErrorMsg := "mock error"
 
@@ -63,14 +64,14 @@ func TestFetchDeployedResourcesFailure(t *testing.T) {
 func TestFetch(t *testing.T) {
 	deployment := &appsv1.Deployment{ObjectMeta: metav1.ObjectMeta{Name: "deployment", Namespace: t.Name()}}
 	cli := test.NewFakeClientBuilder(deployment).Build()
-	err := Fetch(cli, Key(deployment), deployment, DeploymentKind)
+	err := Fetch(cli, Key(deployment), deployment, kind.DeploymentKind)
 	assert.NoError(t, err)
 }
 
 func TestNotFoundFetch(t *testing.T) {
 	deployment := &appsv1.Deployment{ObjectMeta: metav1.ObjectMeta{Name: "deployment", Namespace: t.Name()}}
 	cli := test.NewFakeClientBuilder().Build()
-	err := Fetch(cli, Key(deployment), deployment, DeploymentKind)
+	err := Fetch(cli, Key(deployment), deployment, kind.DeploymentKind)
 	assert.Error(t, err)
 	assert.True(t, errors.IsNotFound(err))
 }

pkg/framework/kinds.go → pkg/framework/kind/kinds.go

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package framework
+package kind
 
 const (
 	DeploymentKind = "Deployment"

pkg/test/client.go

@@ -33,6 +33,7 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/client/fake"
 
 	"github.com/m88i/nexus-operator/api/v1alpha1"
+	"github.com/m88i/nexus-operator/pkg/framework/kind"
 	"github.com/m88i/nexus-operator/pkg/util"
 )
 
@@ -67,21 +68,21 @@ func (b *FakeClientBuilder) OnOpenshift() *FakeClientBuilder {
 	util.Must(schemeBuilderOnOCP().AddToScheme(b.scheme))
 	b.resources = append(b.resources,
 		&metav1.APIResourceList{GroupVersion: openshiftGroupVersion},
-		&metav1.APIResourceList{GroupVersion: routev1.GroupVersion.String()})
+		&metav1.APIResourceList{GroupVersion: routev1.GroupVersion.String(), APIResources: []metav1.APIResource{{Kind: kind.RouteKind}}})
 	return b
 }
 
 // WithIngress makes the fake client aware of v1 Ingresses
 func (b *FakeClientBuilder) WithIngress() *FakeClientBuilder {
 	util.Must(schemeBuilderWithIngress().AddToScheme(b.scheme))
-	b.resources = append(b.resources, &metav1.APIResourceList{GroupVersion: networkingv1.SchemeGroupVersion.String()})
+	b.resources = append(b.resources, &metav1.APIResourceList{GroupVersion: networkingv1.SchemeGroupVersion.String(), APIResources: []metav1.APIResource{{Kind: kind.IngressKind}}})
 	return b
 }
 
 // WithLegacyIngress makes the fake client aware of v1beta1 Ingresses
 func (b *FakeClientBuilder) WithLegacyIngress() *FakeClientBuilder {
 	util.Must(schemeBuilderWithLegacyIngress().AddToScheme(b.scheme))
-	b.resources = append(b.resources, &metav1.APIResourceList{GroupVersion: networkingv1beta1.SchemeGroupVersion.String()})
+	b.resources = append(b.resources, &metav1.APIResourceList{GroupVersion: networkingv1beta1.SchemeGroupVersion.String(), APIResources: []metav1.APIResource{{Kind: kind.IngressKind}}})
 	return b
 }