cron job

dags/etl_food_security.py

@@ -1,8 +1,57 @@
+"""
+AIRFLOW DAG — ETL Food Security BigQuery
+Kimball Data Warehouse Architecture
+
+Schedule : Setiap 3 hari sekali (timedelta(days=3))
+Catchup  : False
+
+Kimball ETL Flow:
+    ┌──────────────────────────────────────────────────────────────────────────┐
+    │  BRONZE (Raw)       SILVER (Staging→Cleaned)   GOLD (DW → Analytical)   │
+    │                                                                          │
+    │  raw_fao       ─┐                              dim_country               │
+    │  raw_worldbank ─┼→ staging_integrated          dim_indicator             │
+    │  raw_unicef    ─┘        ↓                     dim_time                  │
+    │                   cleaned_integrated  ───────→ dim_source                │
+    │                                                dim_pillar                │
+    │                                                fact_food_security        │
+    │                                                      ↓                   │
+    │                                                analytical_food_security  │
+    │                                                      ↓                   │
+    │                                                agg_pillar_composite      │
+    │                                                agg_pillar_by_country     │
+    │                                                agg_framework_by_country  │
+    │                                                agg_framework_asean       │
+    │                                                                          │
+    │  AUDIT : etl_logs, etl_metadata (setiap layer)                           │
+    └──────────────────────────────────────────────────────────────────────────┘
+
+Task Order:
+    verify_bigquery_connection
+        → load_fao_to_bronze
+        → load_worldbank_to_bronze
+        → load_unicef_to_bronze
+        → staging_integration_to_silver
+        → cleaned_integration_to_silver
+        → dimensional_model_to_gold
+        → analytical_layer_to_gold
+        → aggregation_to_gold
+
+Scripts folder harus berisi:
+    - bigquery_raw_layer.py             (run_verify_connection, run_load_fao, ...)
+    - bigquery_cleaned_layer.py         (run_cleaned_integration)
+    - bigquery_dimensional_model.py     (run_dimensional_model)
+    - bigquery_analytical_layer.py      (run_analytical_layer)
+    - bigquery_analysis_aggregation.py  (run_aggregation)
+    - bigquery_config.py
+    - bigquery_helpers.py
+    - bigquery_datasource.py
+"""
+
 from airflow import DAG
 from airflow.operators.python import PythonOperator
-from datetime import datetime, timedelta
+from datetime import datetime
 
-# Import fungsi dari folder scripts
 from scripts.bigquery_raw_layer import (
     run_verify_connection,
     run_load_fao,
@@ -10,32 +59,36 @@ from scripts.bigquery_raw_layer import (
     run_load_unicef,
     run_staging_integration,
 )
-
 from scripts.bigquery_cleaned_layer import (
     run_cleaned_integration,
 )
-
-from scripts.bigquery_dimesional_model import (
+from scripts.bigquery_dimensional_model import (
     run_dimensional_model,
 )
-
 from scripts.bigquery_analytical_layer import (
     run_analytical_layer,
 )
-
 from scripts.bigquery_aggregate_layer import (
     run_aggregation,
 )
 
+# DEFAULT ARGS
+
+default_args = {
+    'owner': 'data-engineering',
+    'email': ['d1041221004@student.untan.ac.id'],
+}
+
+# DAG DEFINITION
 
 with DAG(
     dag_id            = "etl_food_security_bigquery",
-    description       = "Kimball ETL: FAO, World Bank, UNICEF to BigQuery (Bronze to Silver to Gold)",
+    description       = "Kimball ETL: FAO, World Bank, UNICEF → BigQuery (Bronze → Silver → Gold)",
+    default_args      = default_args,
     start_date        = datetime(2026, 3, 1),
-    schedule_interval = "@daily",
-    schedule_interval = timedelta(days=3),
+    schedule_interval = "0 0 */3 * *",
     catchup           = False,
-    tags              = ["food-security", "bigquery", "kimball"]
+    tags              = ["food-security", "bigquery", "kimball"],
 ) as dag:
 
     task_verify = PythonOperator(