You may put any number of script files in this directory for running ansible commands prior to bootstrapping the hashistack. The bootstrap procedure is included/hardcoded in your box. bootstrap.yml will start by running the scripts in this folder and end by running the scripts in ../post_bootstrap
The files e.g. 0-example.yml must only include pure ansible task syntax:
- name: Task that shows usage of prestart
debug:
msg: This would be a prestart task
See example