2.9. test-server
This playbook bascially just executes the role test-server to set up the testing server.
Additionally either the postfix or the ssmtp role is used to be able to send emails.
The inventory inventories/test/test_server
should be used with it and potential SSH or sudo passwords should only be used with prompts - if necessary at all.
You can call it like this (if those passwords are needed):
$ ansible-playbook playbooks/test_server.yml -i inventories/test/test_server/ -K -k