---
- name: Demo lowercase and search/replace in var
  hosts: localhost
  gather_facts: false
  vars:
    answers: "no so YES no"

# mastering ansible 4th ed. 2021, p.202
# REF: https://stackoverflow.com/questions/55927273/how-ansible-assign-values-to-variables
# REF: https://docs.ansible.com/ansible/latest/collections/ansible/builtin/debug_module.html

# replace all no with yes and lowercase it all
  tasks:
    - name: do the thing
      debug: 
        msg: 
        - "Original: {{ answers }}"
        - "Expected result: {{ answers | replace('no', 'yes') | lower }}"

    - set_fact: my_result="{{ answers | replace('no', 'yes') | lower }}"

    - name: show result
      debug:
        msg: "{{ my_result }}"