CloudWatch: Pass label in GetMetricData API request when dynamic label feature toggle is enabled (#48574)

pkg/tsdb/cloudwatch/metric_data_query_builder.go

@@ -8,6 +8,7 @@ import (
 
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/service/cloudwatch"
+	"github.com/grafana/grafana/pkg/services/featuremgmt"
 )
 
 func (e *cloudWatchExecutor) buildMetricDataQuery(query *cloudWatchQuery) (*cloudwatch.MetricDataQuery, error) {
@@ -16,6 +17,10 @@ func (e *cloudWatchExecutor) buildMetricDataQuery(query *cloudWatchQuery) (*clou
 		ReturnData: aws.Bool(query.ReturnData),
 	}
 
+	if e.features.IsEnabled(featuremgmt.FlagCloudWatchDynamicLabels) && len(query.Label) > 0 {
+		mdq.Label = &query.Label
+	}
+
 	switch query.getGMDAPIMode() {
 	case GMDApiModeMathExpression:
 		mdq.Period = aws.Int64(int64(query.Period))