Implement Odoo license expiry monitor.

prometheus-odoo-license-exporter

@@ -0,0 +1,37 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+from prometheus_client import start_http_server, Gauge
+from datetime import datetime
+from time import sleep
+import psycopg2
+
+
+USER = "odoo"
+HTTP_PORT = 9402
+INTERVAL = 10
+
+# FIXME: Make a parameter
+DBNAME = "edurable_staging"
+
+if __name__ == '__main__':
+    # Setup prometheus Gauge
+    prom_days = Gauge(
+            'odoo_license_remaining_days',
+            "Remaining days before Odoo license expiration")
+
+    # Serve metrics over HTTP
+    start_http_server(HTTP_PORT)
+
+    # Open connection
+    with psycopg2.connect(database=DBNAME, user=USER) as conn:
+        cur = conn.cursor()
+
+        while True:
+            cur.execute("SELECT value FROM ir_config_parameter WHERE key =" +
+                        "'database.expiration_date';")
+            expiration_date = datetime.strptime(cur.fetchone()[0].split()[0],
+                                                "%Y-%m-%d").date()
+            now = datetime.now().date()
+            prom_days.set((expiration_date - now).days)
+            sleep(INTERVAL)