playbook.yml

---
# yamllint disable rule:line-length
- name: Setup Machine
  hosts: target_group # The host address/name was created in run.sh and stored in inventory file
  gather_facts: false # speed up execution. Facts include information about the host's operating system, hardware, and other details. 
  become: true # run task as privilege user

  tasks:
    - name: Install requirements
      apt:
        update_cache: true
        pkg:
          - python3
          - flake8
          - pylint
          - python3-pip
        state: latest
      register: task_result # registers the result of the task in a variable named task_result. allow access information about the task outcome later in the playbook.
      until: not task_result.failed # a loop condition that specifies that the task should be retried until the condition not task_result.failed is true. In other words, it will keep retrying the task as long as it fails.
      retries: 3