Migrate to controller-runtime Apply funcs

controllers/namespace_controller.go

@@ -134,11 +134,7 @@ func (r *NamespaceReconciler) propagateMeta(ctx context.Context, ns, parent *cor
 	ac := corev1ac.Namespace(ns.Name).
 		WithLabels(labels).
 		WithAnnotations(annotations)
-	ns, p, err := newNamespacePatch(ac)
-	if err != nil {
-		return err
-	}
-	if err := r.Patch(ctx, ns, p, fieldOwner, client.ForceOwnership); err != nil {
+	if err := r.Apply(ctx, ac, fieldOwner, client.ForceOwnership); err != nil {
 		return fmt.Errorf("failed to propagate labels/annotations for namespace %s: %w", ns.Name, err)
 	}
 	return nil
@@ -269,7 +265,8 @@ func (r *NamespaceReconciler) propagateUpdate(ctx context.Context, res *unstruct
 		return nil
 	}
 
-	if err := r.Patch(ctx, c2, applyPatch{c2}, fieldOwner, client.ForceOwnership); err != nil {
+	ac := client.ApplyConfigurationFromUnstructured(c2)
+	if err := r.Apply(ctx, ac, fieldOwner, client.ForceOwnership); err != nil {
 		return fmt.Errorf("failed to apply %s/%s: %w", c2.GetNamespace(), c2.GetName(), err)
 	}
 

controllers/propagate.go

@@ -290,7 +290,8 @@ func (r *PropagateController) propagateUpdate(ctx context.Context, obj, parent *
 		}
 
 		if !equality.Semantic.DeepDerivative(clone, obj) {
-			if err := r.Patch(ctx, clone, applyPatch{clone}, fieldOwner, client.ForceOwnership); err != nil {
+			ac := client.ApplyConfigurationFromUnstructured(clone)
+			if err := r.Apply(ctx, ac, fieldOwner, client.ForceOwnership); err != nil {
 				return fmt.Errorf("failed to apply %s/%s: %w", clone.GetNamespace(), clone.GetName(), err)
 			}
 			logger.Info("applied", "from", parent.GetNamespace())
@@ -336,7 +337,8 @@ func (r *PropagateController) propagateUpdate(ctx context.Context, obj, parent *
 			continue
 		}
 
-		if err := r.Patch(ctx, clone, applyPatch{clone}, fieldOwner, client.ForceOwnership); err != nil {
+		ac := client.ApplyConfigurationFromUnstructured(clone)
+		if err := r.Apply(ctx, ac, fieldOwner, client.ForceOwnership); err != nil {
 			return fmt.Errorf("failed to apply %s/%s: %w", clone.GetNamespace(), clone.GetName(), err)
 		}
 		logger.Info("applied a child resource", "subnamespace", child.Name)

controllers/ssa_client.go

@@ -2,14 +2,9 @@ package controllers
 
 import (
 	"context"
-	"encoding/json"
 
-	accuratev2 "github.com/cybozu-go/accurate/api/accurate/v2"
-	accuratev2ac "github.com/cybozu-go/accurate/internal/applyconfigurations/accurate/v2"
-	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/apimachinery/pkg/util/sets"
-	corev1ac "k8s.io/client-go/applyconfigurations/core/v1"
 	"k8s.io/client-go/util/csaupgrade"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 )
@@ -34,31 +29,3 @@ func upgradeManagedFields(ctx context.Context, c client.Client, obj client.Objec
 	// No work to be done - already upgraded
 	return nil
 }
-
-func newSubNamespacePatch(ac *accuratev2ac.SubNamespaceApplyConfiguration) (*accuratev2.SubNamespace, client.Patch, error) {
-	sn := &accuratev2.SubNamespace{}
-	sn.Name = *ac.Name
-	sn.Namespace = *ac.Namespace
-
-	return sn, applyPatch{ac}, nil
-}
-
-func newNamespacePatch(ac *corev1ac.NamespaceApplyConfiguration) (*corev1.Namespace, client.Patch, error) {
-	ns := &corev1.Namespace{}
-	ns.Name = *ac.Name
-
-	return ns, applyPatch{ac}, nil
-}
-
-type applyPatch struct {
-	// must use any type until apply configurations implements a common interface
-	patch any
-}
-
-func (p applyPatch) Type() types.PatchType {
-	return types.ApplyPatchType
-}
-
-func (p applyPatch) Data(_ client.Object) ([]byte, error) {
-	return json.Marshal(p.patch)
-}

controllers/subnamespace_controller.go

@@ -163,11 +163,7 @@ func (r *SubNamespaceReconciler) reconcileNS(ctx context.Context, sn *accuratev2
 		return err
 	}
 
-	sn, p, err := newSubNamespacePatch(ac)
-	if err != nil {
-		return err
-	}
-	return r.Status().Patch(ctx, sn, p, fieldOwner, client.ForceOwnership)
+	return r.Status().Apply(ctx, ac, fieldOwner, client.ForceOwnership)
 }
 
 // SetupWithManager sets up the controller with the Manager.