20260617 增加状态DB监控指标和Grafana面板

src/tools/rpki_artifact_metrics.rs

@@ -1435,6 +1435,24 @@ fn render_latest_metrics(writer: &mut PromWriter<'_>, instance: &str, latest: &L
             &[label("instance", instance), label("path", path)],
             stat.file_count as f64,
         );
+        writer.gauge(
+            "ours_rp_state_db_size_bytes",
+            "Persistent state database size from latest run pathStats",
+            &[label("instance", instance), label("db", path)],
+            stat.total_size_bytes as f64,
+        );
+        writer.gauge(
+            "ours_rp_state_db_files",
+            "Persistent state database file count from latest run pathStats",
+            &[label("instance", instance), label("db", path)],
+            stat.file_count as f64,
+        );
+        writer.gauge(
+            "ours_rp_state_db_dirs",
+            "Persistent state database directory count from latest run pathStats",
+            &[label("instance", instance), label("db", path)],
+            stat.dir_count as f64,
+        );
     }
 }
 
@@ -2296,6 +2314,11 @@ mod tests {
         assert!(metrics.contains("ours_rp_cir_object_list_digest_present"));
         assert!(metrics.contains("ours_rp_cir_reject_list_digest_present_by_source"));
         assert!(metrics.contains("ours_rp_ccr_state_items"));
+        assert!(
+            metrics.contains(r#"ours_rp_state_db_size_bytes{instance="test",db="work-db"} 99"#)
+        );
+        assert!(metrics.contains(r#"ours_rp_state_db_files{instance="test",db="work-db"} 2"#));
+        assert!(metrics.contains(r#"ours_rp_state_db_dirs{instance="test",db="work-db"} 1"#));
         assert!(
             metrics.contains(r#"ours_rp_cir_objects_by_source{instance="test",source="fresh"} 2"#)
         );