Decorate reconcilers only when leader election is enabled

pkg/controller/core/leader_aware_reconciler.go

@@ -21,6 +21,7 @@ import (
 	"time"
 
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/utils/ptr"
 	ctrl "sigs.k8s.io/controller-runtime"
 	"sigs.k8s.io/controller-runtime/pkg/reconcile"
 
@@ -42,6 +43,11 @@ import (
 //   - Transition to actually reconciling requests in the replica that may acquire
 //     the leader election lease, in case the previously leading replica failed to renew it.
 func WithLeadingManager(mgr ctrl.Manager, reconciler reconcile.Reconciler, cfg *config.Configuration) reconcile.Reconciler {
+	// Do not decorate the reconciler if leader election is disabled
+	if cfg.LeaderElection == nil || !ptr.Deref(cfg.LeaderElection.LeaderElect, false) {
+		return reconciler
+	}
+
 	// Default to the recommended lease duration, that's used for core components
 	requeueDuration := 15 * time.Second
 	// Otherwise used the configured lease duration for the manager