update gitignore to store password file

.gitignore

@@ -6,4 +6,8 @@ __pycache__
 
 volumes/
 
-certs/*.pem
\ No newline at end of file
+certs/*.pem
+
+# WARNING; If you need to add real password, add them here and use dev docker compose file
+# ln -s docker-compose.dev.yml docker-compose.override.yml
+./metrics/conf_dev.py
\ No newline at end of file