Case statement for setting var in Ansible/Jinja2

Question

I\'m using Ansible with Jinja2 templates, and this is a scenario that I can\'t find a solution for in Ansible\'s documentation or googling around for Jinja2 examples. Here\'

Answer 1

Something like this would work, but it's ugly. And as @podarok mentioned in his answer, it's likely unnecessary depending on exactly what you're attempting to do:

- name: set default
  set_fact: new_ansible_var= ""

- name: set to 'a'
  set_fact: new_ansible_var= "a"
  when: "{{ existing_ansible_var }} == string1"

- name: set to 'b'
  set_fact: new_ansible_var= "b"
  when: "{{ existing_ansible_var }} == string2"

etc.