Adding debounce period also after resource started scale event (#29)

Author: Hedingber

pkg/autoscaler/autoscaler.go

@@ -185,13 +185,16 @@ func (as *Autoscaler) checkResourcesToScale() error {
 
 		scaleEventDebounceDuration := as.getMaxScaleResourceWindowSize(resource)
 
-		// if the resource was scaled from zero, and it happened after biggest window ago do not scale
-		if (resource.LastScaleEvent == scaler_types.ScaleFromZeroStartedScaleEvent ||
-			resource.LastScaleEvent == scaler_types.ScaleFromZeroCompletedScaleEvent) &&
+		// if the resource was scaled from zero or started, and the debounce period from then has not passed yet do not scale
+		if ((resource.LastScaleEvent != nil) &&
+			(*resource.LastScaleEvent == scaler_types.ResourceStartedScaleEvent ||
+				*resource.LastScaleEvent == scaler_types.ScaleFromZeroStartedScaleEvent ||
+				*resource.LastScaleEvent == scaler_types.ScaleFromZeroCompletedScaleEvent)) &&
 			resource.LastScaleEventTime.After(now.Add(-1*scaleEventDebounceDuration)) {
 			as.logger.DebugWith("Resource in debouncing period, not a scale-to-zero candidate",
 				"resourceName", resource.Name,
-				"LastScaleEventTime", resource.LastScaleEventTime,
+				"LastScaleEvent", *resource.LastScaleEvent,
+				"LastScaleEventTime", *resource.LastScaleEventTime,
 				"scaleEventDebounceDuration", scaleEventDebounceDuration,
 				"time", now)
 			continue