Enable logging for fmn backend.

roles/notifs-backend/templates/fmn.consumer.py

@@ -33,4 +33,15 @@ config = {
     "fmn.acceptance_url": base + "confirm/accept/{secret}",
     "fmn.rejection_url": base + "confirm/reject/{secret}",
     "fmn.support_email": "notifications@" + domain,
+
+    # Generic stuff
+    "logging": dict(
+        loggers=dict(
+            fmn={
+                "level": "DEBUG",
+                "propagate": False,
+                "handlers": ["console"],
+            },
+        ),
+    ),
 }