[GuyPostington]

I used Ansible in pull mode (https://docs.ansible.com/ansible/latest/cli/ansible-pull.htm...) in my UserData for several years. I've since left that company, but the implementation still powers their infrastructure. I had Ansible emit slack notifications when it started and completed. If the initial deploy ever failed, the node would eventually fail a healthcheck and that server would be destroyed and throw a different slack notification via an autoscaling group lifecycle monitor.