feat: DAG backfill Metrocuadrado CO

dags/metrocuadrado_co_backfill.py

@@ -0,0 +1,57 @@
+"""DAG de backfill – Metrocuadrado CO (Colombia)
+Reanudable via checkpoint en /opt/scrapers/metrocuadrado_co/state.json
+156 categorías × (1 pagina + ~24 barrios) × ~55 listings cada una.
+"""
+from datetime import datetime, timedelta
+import paramiko
+
+from airflow import DAG
+from airflow.operators.python import PythonOperator
+
+VPS_HOST = '152.53.242.31'
+VPS_USER = 'root'
+VPS_KEY  = '/opt/airflow/config/.ssh/id_rsa'
+
+SCRAPER_CMD = (
+    'timeout 36000 '
+    '/home/jpuma/proyectos/bot-sunat/.venv/bin/python '
+    '/opt/scrapers/metrocuadrado_co/scraper.py 2>&1'
+)
+
+def run_backfill(**ctx):
+    client = paramiko.SSHClient()
+    client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+    client.connect(VPS_HOST, username=VPS_USER, key_filename=VPS_KEY, timeout=30)
+    _, stdout, stderr = client.exec_command(SCRAPER_CMD, timeout=36000)
+    output = stdout.read().decode('utf-8', errors='replace')
+    err    = stderr.read().decode('utf-8', errors='replace')
+    client.close()
+    print(output[-6000:] if len(output) > 6000 else output)
+    if err:
+        print('STDERR:', err[-500:])
+    if 'Finalizado:' not in output:
+        raise RuntimeError('Scraper no imprimió "Finalizado:" — posible error')
+    return output.split('Finalizado:')[-1].strip()
+
+
+default_args = {
+    'owner': 'jpuma',
+    'retries': 1,
+    'retry_delay': timedelta(minutes=15),
+    'execution_timeout': timedelta(hours=11),
+}
+
+with DAG(
+    dag_id='metrocuadrado_co_backfill',
+    default_args=default_args,
+    description='Backfill histórico Metrocuadrado CO — reanudable via checkpoint',
+    schedule_interval=None,
+    start_date=datetime(2026, 8, 1),
+    catchup=False,
+    max_active_runs=1,
+    tags=['colombia', 'backfill', 'inmuebles'],
+) as dag:
+    PythonOperator(
+        task_id='backfill_metrocuadrado_co',
+        python_callable=run_backfill,
+    )