Add additional "args" arg to the containerTemplate.
diff --git a/vars/functions.groovy b/vars/functions.groovy
index 8db2ea6..56d5861 100644
--- a/vars/functions.groovy
+++ b/vars/functions.groovy
@@ -87,6 +87,7 @@
     def debianContainer = containerTemplate(name: 'debian',
                                             image: 'debian:buster-slim',
                                             command: 'cat',
+                                            args: '',
                                             ttyEnabled: true,
                                             privileged: true)