feat: add metric for the number of CardanoDatabase artifacts produced since aggregator startup

Author: dlachaume

mithril-aggregator/src/metrics/service.rs

@@ -66,6 +66,10 @@ build_metrics_service!(
         "mithril_aggregator_artifact_cardano_transaction_total_produced_since_startup",
         "Number of Cardano transaction artifacts produced since startup on a Mithril aggregator node"
     ),
+    artifact_cardano_database_total_produced_since_startup:MetricCounter(
+        "mithril_aggregator_artifact_cardano_database_total_produced_since_startup",
+        "Number of Cardano database artifacts produced since startup on a Mithril aggregator node"
+    ),
     runtime_cycle_success_since_startup:MetricCounter(
         "mithril_aggregator_runtime_cycle_success_since_startup",
         "Number of successful runtime cycles since startup on a Mithril aggregator"

mithril-aggregator/src/runtime/runner.rs

@@ -192,7 +192,7 @@ impl AggregatorRunner {
                 metrics.get_artifact_cardano_transaction_total_produced_since_startup()
             }
             SignedEntityType::CardanoDatabase(_) => {
-                todo!("To be implemented after the artifact builder is available")
+                metrics.get_artifact_cardano_database_total_produced_since_startup()
             }
         };