Add ClusterInfo() to DataSource

Signed-off-by: Matt Bolt <mbolt35@gmail.com>

core/pkg/source/datasource.go

@@ -122,6 +122,9 @@ type OpenCostDataSource interface {
 	// single cluster deployments).
 	ClusterMap() clusters.ClusterMap
 
+	// ClusterInfo returns the ClusterInfoProvider for the local cluster.
+	ClusterInfo() clusters.ClusterInfoProvider
+
 	BatchDuration() time.Duration
 	Resolution() time.Duration
 }

modules/prometheus-source/pkg/prom/datasource.go

@@ -86,6 +86,7 @@ type PrometheusDataSource struct {
 
 	metricsQuerier *PrometheusMetricsQuerier
 	clusterMap     clusters.ClusterMap
+	clusterInfo    clusters.ClusterInfoProvider
 }
 
 // NewDefaultPrometheusDataSource creates and initializes a new `PrometheusDataSource` with configuration
@@ -217,6 +218,7 @@ func NewPrometheusDataSource(infoProvider clusters.ClusterInfoProvider, promConf
 		thanosContexts: thanosContexts,
 		metricsQuerier: metricsQuerier,
 		clusterMap:     clusterMap,
+		clusterInfo:    clusterInfoProvider,
 	}, nil
 }
 
@@ -550,6 +552,11 @@ func (pds *PrometheusDataSource) ClusterMap() clusters.ClusterMap {
 	return pds.clusterMap
 }
 
+// ClusterInfo returns the ClusterInfoProvider for the local cluster.
+func (pds *PrometheusDataSource) ClusterInfo() clusters.ClusterInfoProvider {
+	return pds.clusterInfo
+}
+
 func (pds *PrometheusDataSource) BatchDuration() time.Duration {
 	return pds.promConfig.MaxQueryDuration
 }