Ansible Module set fact

External

• https://docs.ansible.com/ansible/latest/collections/ansible/builtin/set_fact_module.html

Internal

• Ansible Concepts
• Ansible Privilege Escalation

Overview

This module sets new facts (variables). The variables are set on a host-by-host basis just like facts discovered by the setup module and will be available to subsequent plays during an ansible-playbook run.

Set cacheable to yes to save variables across executions using a fact cache. Variables created with set_fact have different precedence depending on whether they are or are not cached. Per the standard Ansible variable precedence rules, many other types of variables have a higher priority, so this value may be overridden.

- name: Set bashrc.d directory path
  set_fact:
    bashrc_d: "{{ ansible_env.HOME }}/.bashrc.d"

Setting Command Output as a Fact

Setting Command Output as a Fact

Setting a Fact by Processing the Content of a Variable

- name: IDEA applications
  set_fact:
    idea_apps: "{{ intellij_apps | to_json | from_json | json_query('files[?contains(path, `/apps/IDEA-`) == `true`]') | list }}"

Setting the Fact Only if the Variable Does Not Exist

- name:
  when: some_var is not defined
  set_fact:
    some_var: "some value"