root: add process ID to logging output

passbook/lib/logging.py

@@ -0,0 +1,9 @@
+"""logging helpers"""
+from os import getpid
+
+
+# pylint: disable=unused-argument
+def add_process_id(logger, method_name, event_dict):
+    """Add the current process ID"""
+    event_dict["pdi"] = getpid()
+    return event_dict