Add OCI revision to events

Signed-off-by: Matheus Pimenta <[email protected]>

Author: matheuscscp

api/v1/kustomization_types.go

@@ -263,6 +263,14 @@ type KustomizationStatus struct {
 	// +optional
 	LastAppliedRevision string `json:"lastAppliedRevision,omitempty"`
 
+	// The last successfully applied origin revision.
+	// Equals the origin revision of the applied Artifact from the referenced Source.
+	// Usually present on the Metadata of the applied Artifact and depends on the
+	// Source type, e.g. for OCI it's the value associated with the key
+	// "org.opencontainers.image.revision".
+	// +optional
+	LastAppliedOriginRevision string `json:"lastAppliedOriginRevision,omitempty"`
+
 	// LastAttemptedRevision is the revision of the last reconciliation attempt.
 	// +optional
 	LastAttemptedRevision string `json:"lastAttemptedRevision,omitempty"`

config/crd/bases/kustomize.toolkit.fluxcd.io_kustomizations.yaml

@@ -520,6 +520,14 @@ spec:
                 required:
                 - entries
                 type: object
+              lastAppliedOriginRevision:
+                description: |-
+                  The last successfully applied origin revision.
+                  Equals the origin revision of the applied Artifact from the referenced Source.
+                  Usually present on the Metadata of the applied Artifact and depends on the
+                  Source type, e.g. for OCI it's the value associated with the key
+                  "org.opencontainers.image.revision".
+                type: string
               lastAppliedRevision:
                 description: |-
                   The last successfully applied revision.

docs/api/v1/kustomize.md

@@ -994,6 +994,22 @@ Equals the Revision of the applied Artifact from the referenced Source.</p>
 </tr>
 <tr>
 <td>
+<code>lastAppliedOriginRevision</code><br>
+<em>
+string
+</em>
+</td>
+<td>
+<em>(Optional)</em>
+<p>The last successfully applied origin revision.
+Equals the origin revision of the applied Artifact from the referenced Source.
+Usually present on the Metadata of the applied Artifact and depends on the
+Source type, e.g. for OCI it&rsquo;s the value associated with the key
+&ldquo;org.opencontainers.image.revision&rdquo;.</p>
+</td>
+</tr>
+<tr>
+<td>
 <code>lastAttemptedRevision</code><br>
 <em>
 string

go.mod

@@ -19,7 +19,7 @@ require (
 	github.com/fluxcd/cli-utils v0.36.0-flux.11
 	github.com/fluxcd/kustomize-controller/api v1.4.0
 	github.com/fluxcd/pkg/apis/acl v0.5.0
-	github.com/fluxcd/pkg/apis/event v0.13.0
+	github.com/fluxcd/pkg/apis/event v0.15.0
 	github.com/fluxcd/pkg/apis/kustomize v1.8.0
 	github.com/fluxcd/pkg/apis/meta v1.9.0
 	github.com/fluxcd/pkg/http/fetch v0.14.0

go.sum

@@ -181,8 +181,8 @@ github.com/fluxcd/cli-utils v0.36.0-flux.11 h1:W0y2uvCVkcE8bgV9jgoGSjzWbLFiNq1Aj
 github.com/fluxcd/cli-utils v0.36.0-flux.11/go.mod h1:WZ7xUpZbK+O6HBxA5UWqzWTLSSltdmj4wS1LstS5Dqs=
 github.com/fluxcd/pkg/apis/acl v0.5.0 h1:+ykKezgerKUlZwSYFUy03lPMOIAyWlqvMNNLIWWqOhk=
 github.com/fluxcd/pkg/apis/acl v0.5.0/go.mod h1:IVDZx3MAoDWjlLrJHMF9Z27huFuXAEQlnbWw0M6EcTs=
-github.com/fluxcd/pkg/apis/event v0.13.0 h1:m5qHAhYIC0+mRFy5OC8FZxBVBGJM3qxJ/sEg2Vgx4T8=
-github.com/fluxcd/pkg/apis/event v0.13.0/go.mod h1:aRK2AONnjjSNW61B6Iy3SW4YHozACntnJeGm3fFqDqA=
+github.com/fluxcd/pkg/apis/event v0.15.0 h1:k1suqIfVxnhEeKlGkvlHAbOYXjY8wRixT/OZcIuakqA=
+github.com/fluxcd/pkg/apis/event v0.15.0/go.mod h1:aRK2AONnjjSNW61B6Iy3SW4YHozACntnJeGm3fFqDqA=
 github.com/fluxcd/pkg/apis/kustomize v1.8.0 h1:HH6YRa3SMS72KK4cUyb9m5sK/dZH+Eti1qhjWDCgwKg=
 github.com/fluxcd/pkg/apis/kustomize v1.8.0/go.mod h1:QCKIFj1ocdndaWSkrLs5JKvdGNYyTzQX1ZB3lYTwma0=
 github.com/fluxcd/pkg/apis/meta v1.9.0 h1:wPgm7bWNJZ/ImS5GqikOxt362IgLPFBG73dZ27uWRiQ=

internal/controller/kustomization_controller.go

@@ -70,6 +70,7 @@ import (
 	kustomizev1 "github.com/fluxcd/kustomize-controller/api/v1"
 	"github.com/fluxcd/kustomize-controller/internal/decryptor"
 	"github.com/fluxcd/kustomize-controller/internal/inventory"
+	"github.com/fluxcd/kustomize-controller/internal/pkg"
 )
 
 // +kubebuilder:rbac:groups=kustomize.toolkit.fluxcd.io,resources=kustomizations,verbs=get;list;watch;create;update;patch;delete
@@ -193,7 +194,7 @@ func (r *KustomizationReconciler) Reconcile(ctx context.Context, req ctrl.Reques
 				time.Since(reconcileStart).String(),
 				obj.Spec.Interval.Duration.String())
 			log.Info(msg, "revision", obj.Status.LastAttemptedRevision)
-			r.event(obj, obj.Status.LastAppliedRevision, eventv1.EventSeverityInfo, msg,
+			r.event(obj, obj.Status.LastAppliedRevision, obj.Status.LastAppliedOriginRevision, eventv1.EventSeverityInfo, msg,
 				map[string]string{
 					kustomizev1.GroupVersion.Group + "/" + eventv1.MetaCommitStatusKey: eventv1.MetaCommitStatusUpdateValue,
 				})
@@ -234,7 +235,7 @@ func (r *KustomizationReconciler) Reconcile(ctx context.Context, req ctrl.Reques
 		if acl.IsAccessDenied(err) {
 			conditions.MarkFalse(obj, meta.ReadyCondition, apiacl.AccessDeniedReason, "%s", err)
 			log.Error(err, "Access denied to cross-namespace source")
-			r.event(obj, "unknown", eventv1.EventSeverityError, err.Error(), nil)
+			r.event(obj, "", "", eventv1.EventSeverityError, err.Error(), nil)
 			return ctrl.Result{RequeueAfter: obj.GetRetryInterval()}, nil
 		}
 
@@ -249,14 +250,16 @@ func (r *KustomizationReconciler) Reconcile(ctx context.Context, req ctrl.Reques
 		log.Info(msg)
 		return ctrl.Result{RequeueAfter: r.requeueDependency}, nil
 	}
+	revision := artifactSource.GetArtifact().Revision
+	originRevision := getOriginRevision(artifactSource)
 
 	// Check dependencies and requeue the reconciliation if the check fails.
 	if len(obj.Spec.DependsOn) > 0 {
 		if err := r.checkDependencies(ctx, obj, artifactSource); err != nil {
 			conditions.MarkFalse(obj, meta.ReadyCondition, meta.DependencyNotReadyReason, "%s", err)
 			msg := fmt.Sprintf("Dependencies do not meet ready condition, retrying in %s", r.requeueDependency.String())
 			log.Info(msg)
-			r.event(obj, artifactSource.GetArtifact().Revision, eventv1.EventSeverityInfo, msg, nil)
+			r.event(obj, revision, originRevision, eventv1.EventSeverityInfo, msg, nil)
 			return ctrl.Result{RequeueAfter: r.requeueDependency}, nil
 		}
 		log.Info("All dependencies are ready, proceeding with reconciliation")
@@ -279,8 +282,8 @@ func (r *KustomizationReconciler) Reconcile(ctx context.Context, req ctrl.Reques
 			time.Since(reconcileStart).String(),
 			obj.GetRetryInterval().String()),
 			"revision",
-			artifactSource.GetArtifact().Revision)
-		r.event(obj, artifactSource.GetArtifact().Revision, eventv1.EventSeverityError,
+			revision)
+		r.event(obj, revision, originRevision, eventv1.EventSeverityError,
 			reconcileErr.Error(), nil)
 		return ctrl.Result{RequeueAfter: obj.GetRetryInterval()}, nil
 	}
@@ -298,6 +301,7 @@ func (r *KustomizationReconciler) reconcile(
 
 	// Update status with the reconciliation progress.
 	revision := src.GetArtifact().Revision
+	originRevision := getOriginRevision(src)
 	progressingMsg := fmt.Sprintf("Fetching manifests for revision %s with a timeout of %s", revision, obj.GetTimeout().String())
 	conditions.MarkUnknown(obj, meta.ReadyCondition, meta.ProgressingReason, "%s", "Reconciliation in progress")
 	conditions.MarkReconciling(obj, meta.ProgressingReason, "%s", progressingMsg)
@@ -419,7 +423,7 @@ func (r *KustomizationReconciler) reconcile(
 	}
 
 	// Validate and apply resources in stages.
-	drifted, changeSet, err := r.apply(ctx, resourceManager, obj, revision, objects)
+	drifted, changeSet, err := r.apply(ctx, resourceManager, obj, revision, originRevision, objects)
 	if err != nil {
 		conditions.MarkFalse(obj, meta.ReadyCondition, meta.ReconciliationFailedReason, "%s", err)
 		return err
@@ -444,7 +448,7 @@ func (r *KustomizationReconciler) reconcile(
 	}
 
 	// Run garbage collection for stale resources that do not have pruning disabled.
-	if _, err := r.prune(ctx, resourceManager, obj, revision, staleObjects); err != nil {
+	if _, err := r.prune(ctx, resourceManager, obj, revision, originRevision, staleObjects); err != nil {
 		conditions.MarkFalse(obj, meta.ReadyCondition, meta.PruneFailedReason, "%s", err)
 		return err
 	}
@@ -456,15 +460,17 @@ func (r *KustomizationReconciler) reconcile(
 		patcher,
 		obj,
 		revision,
+		originRevision,
 		isNewRevision,
 		drifted,
 		changeSet.ToObjMetadataSet()); err != nil {
 		conditions.MarkFalse(obj, meta.ReadyCondition, meta.HealthCheckFailedReason, "%s", err)
 		return err
 	}
 
-	// Set last applied revision.
+	// Set last applied revisions.
 	obj.Status.LastAppliedRevision = revision
+	obj.Status.LastAppliedOriginRevision = originRevision
 
 	// Mark the object as ready.
 	conditions.MarkTrue(obj,
@@ -656,6 +662,7 @@ func (r *KustomizationReconciler) apply(ctx context.Context,
 	manager *ssa.ResourceManager,
 	obj *kustomizev1.Kustomization,
 	revision string,
+	originRevision string,
 	objects []*unstructured.Unstructured) (bool, *ssa.ChangeSet, error) {
 	log := ctrl.LoggerFrom(ctx)
 
@@ -841,7 +848,7 @@ func (r *KustomizationReconciler) apply(ctx context.Context,
 	// emit event only if the server-side apply resulted in changes
 	applyLog := strings.TrimSuffix(changeSetLog.String(), "\n")
 	if applyLog != "" {
-		r.event(obj, revision, eventv1.EventSeverityInfo, applyLog, nil)
+		r.event(obj, revision, originRevision, eventv1.EventSeverityInfo, applyLog, nil)
 	}
 
 	return applyLog != "", resultSet, nil
@@ -852,6 +859,7 @@ func (r *KustomizationReconciler) checkHealth(ctx context.Context,
 	patcher *patch.SerialPatcher,
 	obj *kustomizev1.Kustomization,
 	revision string,
+	originRevision string,
 	isNewRevision bool,
 	drifted bool,
 	objects object.ObjMetadataSet) error {
@@ -910,7 +918,7 @@ func (r *KustomizationReconciler) checkHealth(ctx context.Context,
 	// Emit recovery event if the previous health check failed.
 	msg := fmt.Sprintf("Health check passed in %s", time.Since(checkStart).String())
 	if !wasHealthy || (isNewRevision && drifted) {
-		r.event(obj, revision, eventv1.EventSeverityInfo, msg, nil)
+		r.event(obj, revision, originRevision, eventv1.EventSeverityInfo, msg, nil)
 	}
 
 	conditions.MarkTrue(obj, meta.HealthyCondition, meta.SucceededReason, "%s", msg)
@@ -925,6 +933,7 @@ func (r *KustomizationReconciler) prune(ctx context.Context,
 	manager *ssa.ResourceManager,
 	obj *kustomizev1.Kustomization,
 	revision string,
+	originRevision string,
 	objects []*unstructured.Unstructured) (bool, error) {
 	if !obj.Spec.Prune {
 		return false, nil
@@ -949,7 +958,7 @@ func (r *KustomizationReconciler) prune(ctx context.Context,
 	// emit event only if the prune operation resulted in changes
 	if changeSet != nil && len(changeSet.Entries) > 0 {
 		log.Info(fmt.Sprintf("garbage collection completed: %s", changeSet.String()))
-		r.event(obj, revision, eventv1.EventSeverityInfo, changeSet.String(), nil)
+		r.event(obj, revision, originRevision, eventv1.EventSeverityInfo, changeSet.String(), nil)
 		return true, nil
 	}
 
@@ -1004,19 +1013,19 @@ func (r *KustomizationReconciler) finalize(ctx context.Context,
 
 			changeSet, err := resourceManager.DeleteAll(ctx, objects, opts)
 			if err != nil {
-				r.event(obj, obj.Status.LastAppliedRevision, eventv1.EventSeverityError, "pruning for deleted resource failed", nil)
+				r.event(obj, obj.Status.LastAppliedRevision, obj.Status.LastAppliedOriginRevision, eventv1.EventSeverityError, "pruning for deleted resource failed", nil)
 				// Return the error so we retry the failed garbage collection
 				return ctrl.Result{}, err
 			}
 
 			if changeSet != nil && len(changeSet.Entries) > 0 {
-				r.event(obj, obj.Status.LastAppliedRevision, eventv1.EventSeverityInfo, changeSet.String(), nil)
+				r.event(obj, obj.Status.LastAppliedRevision, obj.Status.LastAppliedOriginRevision, eventv1.EventSeverityInfo, changeSet.String(), nil)
 			}
 		} else {
 			// when the account to impersonate is gone, log the stale objects and continue with the finalization
 			msg := fmt.Sprintf("unable to prune objects: \n%s", ssautil.FmtUnstructuredList(objects))
 			log.Error(fmt.Errorf("skiping pruning, failed to find account to impersonate"), msg)
-			r.event(obj, obj.Status.LastAppliedRevision, eventv1.EventSeverityError, msg, nil)
+			r.event(obj, obj.Status.LastAppliedRevision, obj.Status.LastAppliedOriginRevision, eventv1.EventSeverityError, msg, nil)
 		}
 	}
 
@@ -1027,13 +1036,16 @@ func (r *KustomizationReconciler) finalize(ctx context.Context,
 }
 
 func (r *KustomizationReconciler) event(obj *kustomizev1.Kustomization,
-	revision, severity, msg string,
+	revision, originRevision, severity, msg string,
 	metadata map[string]string) {
 	if metadata == nil {
 		metadata = map[string]string{}
 	}
 	if revision != "" {
-		metadata[kustomizev1.GroupVersion.Group+"/revision"] = revision
+		metadata[kustomizev1.GroupVersion.Group+"/"+eventv1.MetaRevisionKey] = revision
+	}
+	if originRevision != "" {
+		metadata[kustomizev1.GroupVersion.Group+"/"+eventv1.MetaOriginRevisionKey] = originRevision
 	}
 
 	reason := severity
@@ -1108,3 +1120,14 @@ func (r *KustomizationReconciler) patch(ctx context.Context,
 
 	return nil
 }
+
+// getOriginRevision returns the origin revision of the source artifact,
+// or the empty string if it's not present, or if the artifact itself
+// is not present.
+func getOriginRevision(src sourcev1.Source) string {
+	a := src.GetArtifact()
+	if a == nil {
+		return ""
+	}
+	return a.Metadata[pkg.OCIArtifactOriginRevisionAnnotation]
+}

internal/controller/kustomization_event_test.go

@@ -0,0 +1,63 @@
+/*
+Copyright 2025 The Flux authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package controller
+
+import (
+	"testing"
+
+	. "github.com/onsi/gomega"
+	"k8s.io/client-go/tools/record"
+
+	kustomizev1 "github.com/fluxcd/kustomize-controller/api/v1"
+)
+
+func TestKustomizationReconciler_event(t *testing.T) {
+	for _, tt := range []struct {
+		name           string
+		originRevision string
+		event          string
+	}{
+		{
+			name:           "non-empty origin revision is present on event",
+			originRevision: "orev",
+			event:          "Normal info message map[kustomize.toolkit.fluxcd.io/originRevision:orev]",
+		},
+		{
+			name:           "empty origin revision is not present on event",
+			originRevision: "",
+			event:          "Normal info message",
+		},
+	} {
+		t.Run(tt.name, func(t *testing.T) {
+			g := NewWithT(t)
+
+			recorder := record.NewFakeRecorder(1)
+			r := &KustomizationReconciler{EventRecorder: recorder}
+
+			obj := &kustomizev1.Kustomization{}
+
+			r.event(obj, "", tt.originRevision, "info", "message", nil)
+
+			select {
+			case event := <-recorder.Events:
+				g.Expect(event).To(Equal(tt.event))
+			default:
+				t.Fatal("expected event")
+			}
+		})
+	}
+}

internal/pkg/artifact.go

@@ -0,0 +1,19 @@
+/*
+Copyright 2025 The Flux authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package pkg
+
+const OCIArtifactOriginRevisionAnnotation = "org.opencontainers.image.revision"