draft of changes to simplify the recording mechanism

Author: shawkins

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/api/reconciler/dependent/RecentOperationEventFilter.java

@@ -37,6 +37,8 @@ public abstract class KubernetesDependentResource<R extends HasMetadata, P exten
     implements KubernetesClientAware,
     DependentResourceConfigurator<KubernetesDependentResourceConfig<R>> {
 
+  public static String PREVIOUS_ANNOTATION_KEY = "javaoperatorsdk.io/previous";
+
   private static final Logger log = LoggerFactory.getLogger(KubernetesDependentResource.class);
 
   protected KubernetesClient client;
@@ -103,35 +105,14 @@ public void configureWith(InformerEventSource<R, P> informerEventSource) {
     setEventSource(informerEventSource);
   }
 
-
-  protected R handleCreate(R desired, P primary, Context<P> context) {
-    ResourceID resourceID = ResourceID.fromResource(desired);
-    try {
-      prepareEventFiltering(desired, resourceID);
-      return super.handleCreate(desired, primary, context);
-    } catch (RuntimeException e) {
-      cleanupAfterEventFiltering(resourceID);
-      throw e;
-    }
-  }
-
-  protected R handleUpdate(R actual, R desired, P primary, Context<P> context) {
-    ResourceID resourceID = ResourceID.fromResource(desired);
-    try {
-      prepareEventFiltering(desired, resourceID);
-      return super.handleUpdate(actual, desired, primary, context);
-    } catch (RuntimeException e) {
-      cleanupAfterEventFiltering(resourceID);
-      throw e;
-    }
-  }
-
   @SuppressWarnings("unused")
   public R create(R target, P primary, Context<P> context) {
     if (useSSA(context)) {
       // setting resource version for SSA so only created if it doesn't exist already
       target.getMetadata().setResourceVersion("1");
     }
+    String id = ((InformerEventSource<R, P>) eventSource().orElseThrow()).getId();
+    target.getMetadata().getAnnotations().put(PREVIOUS_ANNOTATION_KEY, id);
     final var resource = prepare(target, primary, "Creating");
     return useSSA(context)
         ? resource
@@ -147,20 +128,24 @@ public R update(R actual, R target, P primary, Context<P> context) {
           actual.getMetadata().getResourceVersion());
     }
     R updatedResource;
+    String id = ((InformerEventSource<R, P>) eventSource().orElseThrow()).getId();
+    target.getMetadata().getAnnotations().put(PREVIOUS_ANNOTATION_KEY,
+        id + "," + actual.getMetadata().getResourceVersion());
     if (useSSA(context)) {
       target.getMetadata().setResourceVersion(actual.getMetadata().getResourceVersion());
       updatedResource = prepare(target, primary, "Updating")
           .fieldManager(context.getControllerConfiguration().fieldManager())
           .forceConflicts().serverSideApply();
     } else {
       var updatedActual = updaterMatcher.updateResource(actual, target, context);
-      updatedResource = prepare(updatedActual, primary, "Updating").replace();
+      updatedResource = prepare(updatedActual, primary, "Updating").update();
     }
     log.debug("Resource version after update: {}",
         updatedResource.getMetadata().getResourceVersion());
     return updatedResource;
   }
 
+  @Override
   public Result<R> match(R actualResource, P primary, Context<P> context) {
     final var desired = desired(primary, context);
     final boolean matches;
@@ -193,6 +178,7 @@ private boolean useSSA(Context<P> context) {
         .ssaBasedCreateUpdateMatchForDependentResources();
   }
 
+  @Override
   protected void handleDelete(P primary, R secondary, Context<P> context) {
     if (secondary != null) {
       client.resource(secondary).delete();
@@ -290,16 +276,6 @@ protected R desired(P primary, Context<P> context) {
     return super.desired(primary, context);
   }
 
-  private void prepareEventFiltering(R desired, ResourceID resourceID) {
-    ((InformerEventSource<R, P>) eventSource().orElseThrow())
-        .prepareForCreateOrUpdateEventFiltering(resourceID, desired);
-  }
-
-  private void cleanupAfterEventFiltering(ResourceID resourceID) {
-    ((InformerEventSource<R, P>) eventSource().orElseThrow())
-        .cleanupOnCreateOrUpdateEventFiltering(resourceID);
-  }
-
   @Override
   public Optional<KubernetesDependentResourceConfig<R>> configuration() {
     return Optional.ofNullable(kubernetesDependentResourceConfig);

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

@@ -90,6 +90,15 @@ public boolean matches(R actual, R desired, Context<?> context) {
     keepOnlyManagedFields(prunedActual, actualMap,
         managedFieldsEntry.getFieldsV1().getAdditionalProperties(), objectMapper);
 
+    ((Map<String, Object>) prunedActual.get(METADATA_KEY)).computeIfPresent("annotations", (k, v) -> {
+      var annotations = (Map<String, Object>)v;
+      annotations.remove(KubernetesDependentResource.PREVIOUS_ANNOTATION_KEY);
+      if (annotations.isEmpty()) {
+        return null;
+      }
+      return annotations;
+    });
+
     removeIrrelevantValues(desiredMap);
 
     if (LoggingUtils.isNotSensitiveResource(desired)) {