From 0e0d1bc9b1ba930384214821b88d653927d55d96 Mon Sep 17 00:00:00 2001
From: Arkadiusz Galwas <arkadiusz.galwas@sap.com>
Date: Tue, 24 Oct 2023 16:18:12 +0200
Subject: [PATCH] Fix in rotation problem.

---
 internal/controller/gardener_cluster_controller.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/internal/controller/gardener_cluster_controller.go b/internal/controller/gardener_cluster_controller.go
index 835dceee..5ea16fff 100644
--- a/internal/controller/gardener_cluster_controller.go
+++ b/internal/controller/gardener_cluster_controller.go
@@ -239,6 +239,8 @@ func secretNeedsToBeRotated(cluster *imv1.GardenerCluster, secret *corev1.Secret
 }
 
 func secretRotationTimePassed(secret *corev1.Secret, rotationPeriod time.Duration) bool {
+	const rotationPeriodRatio = 0.95
+
 	if secret == nil {
 		return true
 	}
@@ -259,7 +261,7 @@ func secretRotationTimePassed(secret *corev1.Secret, rotationPeriod time.Duratio
 	now := time.Now()
 	alreadyValidFor := now.Sub(lastSyncTime)
 
-	return alreadyValidFor.Minutes() >= rotationPeriod.Minutes()
+	return alreadyValidFor.Minutes() >= rotationPeriodRatio*rotationPeriod.Minutes()
 }
 
 func secretRotationForced(cluster *imv1.GardenerCluster) bool {