do not fallback to kubernetes service URL querying if aggregating metrics from all kubernetes service endpoints fail for whatever reason

see kedacore#6565 (comment)

Signed-off-by: julian GUINARD <[email protected]>

Author: julianguinard

pkg/scalers/metrics_api_scaler.go

@@ -513,14 +513,14 @@ func (s *metricsAPIScaler) getMetricValue(ctx context.Context) (float64, error)
 	if s.metadata.aggregateFromKubeServiceEndpoints {
 		endpointsUrls, err := s.getEndpointsUrlsFromServiceURL(ctx, s.metadata.url)
 		if err != nil {
-			s.logger.Error(err, "Failed to get kubernetes endpoints urls from configured service URL. Falling back to querying url configured in metadata")
+			return 0, fmt.Errorf("failed to get kubernetes endpoints urls from configured service URL")
 		} else {
 			if len(endpointsUrls) == 0 {
-				s.logger.Error(err, "No endpoints URLs were given for the service name. Falling back to querying url configured in metadata")
+				return 0, fmt.Errorf("no endpoints URLs were given for the service name")
 			} else {
 				aggregatedMetric, err := s.aggregateMetricsFromMultipleEndpoints(ctx, endpointsUrls)
 				if err != nil {
-					s.logger.Error(err, "No aggregated metrics could be computed from service endpoints. Falling back to querying url configured in metadata")
+					return 0, fmt.Errorf("no aggregated metrics could be computed from service endpoints")
 				} else {
 					return aggregatedMetric, err
 				}