SIENTIAPDE-1174

Add write_metrics activity to Gates for database metric logging and import metrics module

scouter/activities/gates.py

@@ -1,5 +1,7 @@
 from temporalio import workflow, activity
 
+from scouter import metrics
+
 with workflow.unsafe.imports_passed_through():
     from sientia_do.notifications.models import NotificationLevel
     from sientia_do.temporal.activities.base import BaseActivity
@@ -74,7 +76,7 @@ class Gates(BaseActivity):
         Args:
             input_data (dict[str, Any]): The data to aggregate. Contains:
                 data (dict[str, Any]): The time series data.
-                model_tags (dict[str, Any]): The tags configuration 
+                model_tags (dict[str, Any]): The tags configuration
                 containing aggregation functions.
 
         Returns:
@@ -253,3 +255,18 @@ class Gates(BaseActivity):
         )
 
         return data.to_dict()
+
+    @activity.defn(name="write_metrics")
+    async def write_metrics(self, input_data: dict[str, Any]) -> dict[str, Any]:
+        """
+        Write metrics to the database.
+        input_data:
+            metadata: dict[str, Any]
+        """
+        metadata = input_data['metadata']
+
+        metrics.LABORIOUS_DATA_WRITTEN_COUNT(
+            pod_id=metadata['pod_id'],
+            model_name=metadata['model_name'],
+            pipeline_name=metadata['pipeline_name']
+        ).inc()