improve: remove owner refernce check (#2838)

this was added to fabric8 client meanwhile

Signed-off-by: Attila Mészáros <[email protected]>

Author: csviri

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/ReconcilerUtils.java

@@ -6,14 +6,11 @@
 import java.lang.reflect.Method;
 import java.util.Arrays;
 import java.util.Locale;
-import java.util.Objects;
 import java.util.function.Predicate;
 import java.util.regex.Pattern;
 
 import io.fabric8.kubernetes.api.builder.Builder;
-import io.fabric8.kubernetes.api.model.GenericKubernetesResource;
 import io.fabric8.kubernetes.api.model.HasMetadata;
-import io.fabric8.kubernetes.api.model.Namespaced;
 import io.fabric8.kubernetes.client.CustomResource;
 import io.fabric8.kubernetes.client.KubernetesClientException;
 import io.fabric8.kubernetes.client.utils.Serialization;
@@ -75,36 +72,6 @@ public static String getNameFor(Class<? extends Reconciler> reconcilerClass) {
     return getDefaultNameFor(reconcilerClass);
   }
 
-  public static void checkIfCanAddOwnerReference(HasMetadata owner, HasMetadata resource) {
-    if (owner instanceof GenericKubernetesResource
-        || resource instanceof GenericKubernetesResource) {
-      return;
-    }
-    if (owner instanceof Namespaced) {
-      if (!(resource instanceof Namespaced)) {
-        throw new OperatorException(
-            "Cannot add owner reference from a cluster scoped to a namespace scoped resource."
-                + resourcesIdentifierDescription(owner, resource));
-      } else if (!Objects.equals(
-          owner.getMetadata().getNamespace(), resource.getMetadata().getNamespace())) {
-        throw new OperatorException(
-            "Cannot add owner reference between two resource in different namespaces."
-                + resourcesIdentifierDescription(owner, resource));
-      }
-    }
-  }
-
-  private static String resourcesIdentifierDescription(HasMetadata owner, HasMetadata resource) {
-    return " Owner name: "
-        + owner.getMetadata().getName()
-        + " Kind: "
-        + owner.getKind()
-        + ", Resource name: "
-        + resource.getMetadata().getName()
-        + " Kind: "
-        + resource.getKind();
-  }
-
   public static String getNameFor(Reconciler reconciler) {
     return getNameFor(reconciler.getClass());
   }

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/processing/dependent/kubernetes/KubernetesDependentResource.java

@@ -11,7 +11,6 @@
 import io.fabric8.kubernetes.api.model.HasMetadata;
 import io.fabric8.kubernetes.api.model.Namespaced;
 import io.fabric8.kubernetes.client.dsl.Resource;
-import io.javaoperatorsdk.operator.ReconcilerUtils;
 import io.javaoperatorsdk.operator.api.config.dependent.Configured;
 import io.javaoperatorsdk.operator.api.config.informer.InformerEventSourceConfiguration;
 import io.javaoperatorsdk.operator.api.reconciler.Context;
@@ -208,7 +207,6 @@ protected Resource<R> prepare(Context<P> context, R desired, P primary, String a
 
   protected void addReferenceHandlingMetadata(R desired, P primary) {
     if (addOwnerReference()) {
-      ReconcilerUtils.checkIfCanAddOwnerReference(primary, desired);
       desired.addOwnerReference(primary);
     } else if (useNonOwnerRefBasedSecondaryToPrimaryMapping()) {
       addSecondaryToPrimaryMapperAnnotations(desired, primary);

operator-framework-core/src/test/java/io/javaoperatorsdk/operator/ReconcilerUtilsTest.java

@@ -178,44 +178,6 @@ void handleKubernetesExceptionShouldThrowMissingCRDExceptionWhenAppropriate() {
                 HasMetadata.getFullResourceName(Tomcat.class)));
   }
 
-  @Test
-  void checksIfOwnerReferenceCanBeAdded() {
-    assertThrows(
-        OperatorException.class,
-        () ->
-            ReconcilerUtils.checkIfCanAddOwnerReference(
-                namespacedResource(), namespacedResourceFromOtherNamespace()));
-
-    assertThrows(
-        OperatorException.class,
-        () ->
-            ReconcilerUtils.checkIfCanAddOwnerReference(
-                namespacedResource(), clusterScopedResource()));
-
-    assertDoesNotThrow(
-        () -> {
-          ReconcilerUtils.checkIfCanAddOwnerReference(
-              clusterScopedResource(), clusterScopedResource());
-          ReconcilerUtils.checkIfCanAddOwnerReference(namespacedResource(), namespacedResource());
-        });
-  }
-
-  private ClusterRole clusterScopedResource() {
-    return new ClusterRoleBuilder().withMetadata(new ObjectMetaBuilder().build()).build();
-  }
-
-  private ConfigMap namespacedResource() {
-    return new ConfigMapBuilder()
-        .withMetadata(new ObjectMetaBuilder().withNamespace("testns1").build())
-        .build();
-  }
-
-  private ConfigMap namespacedResourceFromOtherNamespace() {
-    return new ConfigMapBuilder()
-        .withMetadata(new ObjectMetaBuilder().withNamespace("testns2").build())
-        .build();
-  }
-
   @Group("tomcatoperator.io")
   @Version("v1")
   @ShortNames("tc")