initialize pointers

open-telemetry · Dec 12, 2022 · f76931b · f76931b
1 parent b2bd95a
commit f76931b
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Showing 3 changed files with 26 additions and 9 deletions.
diff --git a/apis/v1alpha1/opentelemetrycollector_webhook.go b/apis/v1alpha1/opentelemetrycollector_webhook.go
@@ -150,10 +150,13 @@ func (r *OpenTelemetryCollector) validateCRDSpec() error {
 		}
 	}
 
-	var maxReplicas *int32
+	maxReplicas := new(int32)
 	if r.Spec.Autoscaler != nil && r.Spec.Autoscaler.MaxReplicas != nil {
 		maxReplicas = r.Spec.Autoscaler.MaxReplicas
-	} else {
+	}
+
+	// check deprecated .Spec.MaxReplicas if maxReplicas is not set
+	if *maxReplicas == 0 {
 		maxReplicas = r.Spec.MaxReplicas
 	}
 

diff --git a/pkg/collector/horizontalpodautoscaler.go b/pkg/collector/horizontalpodautoscaler.go
@@ -74,18 +74,24 @@ func HorizontalPodAutoscaler(cfg config.Config, logger logr.Logger, otelcol v1al
 
 		// check if fields are provided by .Spec.Autoscaler
 		// otherwise check deprecated fields
-		var maxReplicas, minReplicas *int32
+		maxReplicas := new(int32)
+		minReplicas := new(int32)
 		if otelcol.Spec.Autoscaler != nil {
 			if otelcol.Spec.Autoscaler.MaxReplicas != nil {
 				maxReplicas = otelcol.Spec.Autoscaler.MaxReplicas
 			}
 			if otelcol.Spec.Autoscaler.MinReplicas != nil {
 				minReplicas = otelcol.Spec.Autoscaler.MinReplicas
 			}
-		} else {
+		}
+		// if maxReplicas not found in .Spec.Autoscaler
+		if *maxReplicas == 0 {
 			maxReplicas = otelcol.Spec.MaxReplicas
+		}
+
+		if *minReplicas == 0 {
+			// this field is optional so if it's not set then use .Spec.Replicas
 			if otelcol.Spec.MinReplicas != nil {
-				// this field is optional so if it's not set then use .Spec.Replicas
 				minReplicas = otelcol.Spec.MinReplicas
 			} else {
 				minReplicas = otelcol.Spec.Replicas
@@ -145,18 +151,25 @@ func HorizontalPodAutoscaler(cfg config.Config, logger logr.Logger, otelcol v1al
 
 		// check if fields are provided by .Spec.Autoscaler
 		// otherwise check deprecated fields
-		var maxReplicas, minReplicas *int32
+		maxReplicas := new(int32)
+		minReplicas := new(int32)
 		if otelcol.Spec.Autoscaler != nil {
 			if otelcol.Spec.Autoscaler.MaxReplicas != nil {
 				maxReplicas = otelcol.Spec.Autoscaler.MaxReplicas
 			}
 			if otelcol.Spec.Autoscaler.MinReplicas != nil {
 				minReplicas = otelcol.Spec.Autoscaler.MinReplicas
 			}
-		} else {
+		}
+
+		// did not find the field in autoscaler
+		if *maxReplicas == 0 {
 			maxReplicas = otelcol.Spec.MaxReplicas
+		}
+
+		if *minReplicas == 0 {
+			// this field is optional so if it's not set then use .Spec.Replicas
 			if otelcol.Spec.MinReplicas != nil {
-				// this field is optional so if it's not set then use .Spec.Replicas
 				minReplicas = otelcol.Spec.MinReplicas
 			} else {
 				minReplicas = otelcol.Spec.Replicas

diff --git a/pkg/collector/reconcile/horizontalpodautoscaler.go b/pkg/collector/reconcile/horizontalpodautoscaler.go
@@ -112,7 +112,8 @@ func expectedHorizontalPodAutoscalers(ctx context.Context, params Params, expect
 
 func setAutoscalerSpec(params Params, autoscalingVersion autodetect.AutoscalingVersion, updated client.Object) {
 	one := int32(1)
-	var maxReplicas, minReplicas *int32
+	maxReplicas := new(int32)
+	minReplicas := new(int32)
 	if params.Instance.Spec.Autoscaler != nil {
 		if params.Instance.Spec.Autoscaler.MaxReplicas != nil {
 			maxReplicas = params.Instance.Spec.Autoscaler.MaxReplicas