Fix incorrect slice creation (#196)

olagacek · bogdandrutu · commit 321e5491efd7 · 2019-09-02T08:43:47.000-07:00
* Added mapping for kubernetes pod resource

* Add mapping for k8s node resource

* Extend k8s node test

* Fix incorrect slice creation
diff --git a/metrics_proto.go b/metrics_proto.go
@@ -243,7 +243,7 @@ func (se *statsExporter) protoMetricToTimeSeries(ctx context.Context, mappedRsc
 	metricType := se.metricTypeFromProto(metricName)
 	metricLabelKeys := metric.GetMetricDescriptor().GetLabelKeys()
 	metricKind, valueType := protoMetricDescriptorTypeToMetricKind(metric)
-	labelKeys := make([]string, len(metricLabelKeys))
+	labelKeys := make([]string, 0, len(metricLabelKeys))
 	for _, key := range metricLabelKeys {
 		labelKeys = append(labelKeys, sanitize(key.GetKey()))
 	}

Original file line number	Diff line number	Diff line change
`@@ -243,7 +243,7 @@ func (se *statsExporter) protoMetricToTimeSeries(ctx context.Context, mappedRsc`
`243`	`243`	`metricType := se.metricTypeFromProto(metricName)`
`244`	`244`	`metricLabelKeys := metric.GetMetricDescriptor().GetLabelKeys()`
`245`	`245`	`metricKind, valueType := protoMetricDescriptorTypeToMetricKind(metric)`
`246`		`- labelKeys := make([]string, len(metricLabelKeys))`
	`246`	`+ labelKeys := make([]string, 0, len(metricLabelKeys))`
`247`	`247`	`for _, key := range metricLabelKeys {`
`248`	`248`	`labelKeys = append(labelKeys, sanitize(key.GetKey()))`
`249`	`249`	`}`