Set kubeApiserver maxReplicas: 3 (gardener#9605)

jfortin-sap · Apr 17, 2024 · f98e6ce · f98e6ce
1 parent 70fe495
commit f98e6ce
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Showing 2 changed files with 7 additions and 6 deletions.
diff --git a/pkg/gardenlet/operation/botanist/kubeapiserver.go b/pkg/gardenlet/operation/botanist/kubeapiserver.go
@@ -97,7 +97,7 @@ func (b *Botanist) computeKubeAPIServerAutoscalingConfig() apiserver.Autoscaling
 		scaleDownDisabledForHvpa  = false
 		defaultReplicas           *int32
 		minReplicas               int32 = 1
-		maxReplicas               int32 = 4
+		maxReplicas               int32 = 3
 		apiServerResources        corev1.ResourceRequirements
 	)
 
@@ -115,6 +115,7 @@ func (b *Botanist) computeKubeAPIServerAutoscalingConfig() apiserver.Autoscaling
 
 	if metav1.HasAnnotation(b.Shoot.GetInfo().ObjectMeta, v1beta1constants.ShootAlphaControlPlaneScaleDownDisabled) {
 		minReplicas = 4
+		maxReplicas = 4
 		scaleDownDisabledForHvpa = true
 	}
 

diff --git a/pkg/gardenlet/operation/botanist/kubeapiserver_test.go b/pkg/gardenlet/operation/botanist/kubeapiserver_test.go
@@ -199,7 +199,7 @@ var _ = Describe("KubeAPIServer", func() {
 						APIServerResources:        resourcesRequirementsForKubeAPIServer(4),
 						HVPAEnabled:               false,
 						MinReplicas:               1,
-						MaxReplicas:               4,
+						MaxReplicas:               3,
 						UseMemoryMetricForHvpaHPA: false,
 						ScaleDownDisabledForHvpa:  false,
 					},
@@ -218,7 +218,7 @@ var _ = Describe("KubeAPIServer", func() {
 						},
 						HVPAEnabled:               true,
 						MinReplicas:               1,
-						MaxReplicas:               4,
+						MaxReplicas:               3,
 						UseMemoryMetricForHvpaHPA: false,
 						ScaleDownDisabledForHvpa:  false,
 					},
@@ -232,7 +232,7 @@ var _ = Describe("KubeAPIServer", func() {
 						APIServerResources:        resourcesRequirementsForKubeAPIServer(4),
 						HVPAEnabled:               false,
 						MinReplicas:               2,
-						MaxReplicas:               4,
+						MaxReplicas:               3,
 						UseMemoryMetricForHvpaHPA: false,
 						ScaleDownDisabledForHvpa:  false,
 					},
@@ -260,7 +260,7 @@ var _ = Describe("KubeAPIServer", func() {
 						APIServerResources:        resourcesRequirementsForKubeAPIServer(4),
 						HVPAEnabled:               false,
 						MinReplicas:               1,
-						MaxReplicas:               4,
+						MaxReplicas:               3,
 						UseMemoryMetricForHvpaHPA: true,
 						ScaleDownDisabledForHvpa:  false,
 					},
@@ -362,7 +362,7 @@ var _ = Describe("KubeAPIServer", func() {
 						APIServerResources:        resourcesRequirementsForKubeAPIServer(4),
 						HVPAEnabled:               false,
 						MinReplicas:               3,
-						MaxReplicas:               4,
+						MaxReplicas:               3,
 						UseMemoryMetricForHvpaHPA: false,
 						ScaleDownDisabledForHvpa:  false,
 					},