func checkAutoscalerSpec()

in apis/v1alpha1/collector_webhook.go [301:340]
35 lines of code
20 McCabe index (conditional complexity)

func checkAutoscalerSpec(autoscaler *AutoscalerSpec) error {
	if autoscaler.Behavior != nil {
		if autoscaler.Behavior.ScaleDown != nil && autoscaler.Behavior.ScaleDown.StabilizationWindowSeconds != nil &&
			*autoscaler.Behavior.ScaleDown.StabilizationWindowSeconds < int32(1) {
			return fmt.Errorf("the OpenTelemetry Spec autoscale configuration is incorrect, scaleDown should be one or more")
		}

		if autoscaler.Behavior.ScaleUp != nil && autoscaler.Behavior.ScaleUp.StabilizationWindowSeconds != nil &&
			*autoscaler.Behavior.ScaleUp.StabilizationWindowSeconds < int32(1) {
			return fmt.Errorf("the OpenTelemetry Spec autoscale configuration is incorrect, scaleUp should be one or more")
		}
	}
	if autoscaler.TargetCPUUtilization != nil && (*autoscaler.TargetCPUUtilization < int32(1) || *autoscaler.TargetCPUUtilization > int32(99)) {
		return fmt.Errorf("the OpenTelemetry Spec autoscale configuration is incorrect, targetCPUUtilization should be greater than 0 and less than 100")
	}
	if autoscaler.TargetMemoryUtilization != nil && (*autoscaler.TargetMemoryUtilization < int32(1) || *autoscaler.TargetMemoryUtilization > int32(99)) {
		return fmt.Errorf("the OpenTelemetry Spec autoscale configuration is incorrect, targetMemoryUtilization should be greater than 0 and less than 100")
	}

	for _, metric := range autoscaler.Metrics {
		if metric.Type != autoscalingv2.PodsMetricSourceType {
			return fmt.Errorf("the OpenTelemetry Spec autoscale configuration is incorrect, metric type unsupported. Expected metric of source type Pod")
		}

		// pod metrics target only support value and averageValue.
		if metric.Pods.Target.Type == autoscalingv2.AverageValueMetricType {
			if val, ok := metric.Pods.Target.AverageValue.AsInt64(); !ok || val < int64(1) {
				return fmt.Errorf("the OpenTelemetry Spec autoscale configuration is incorrect, average value should be greater than 0")
			}
		} else if metric.Pods.Target.Type == autoscalingv2.ValueMetricType {
			if val, ok := metric.Pods.Target.Value.AsInt64(); !ok || val < int64(1) {
				return fmt.Errorf("the OpenTelemetry Spec autoscale configuration is incorrect, value should be greater than 0")
			}
		} else {
			return fmt.Errorf("the OpenTelemetry Spec autoscale configuration is incorrect, invalid pods target type")
		}
	}

	return nil
}