Using facts

using-facts/ansible.cfg

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+[defaults]
+fact_caching = jsonfile
+fact_caching_connection = facts
+fact_caching_timeout = 10

using-facts/cacheable-facts.yaml

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+---
+
+- name: A cacheable fact can be defined and used between invocations / playbooks
+  gather_facts: no
+  hosts: localhost
+  tasks:
+  - debug:
+      var: myfact456
+  - set_fact:
+      myfact456: test
+      cacheable: true
+    when: myfact456 is not defined
+  - assert:
+      that:
+      - "myfact456 == 'test'"
+      - "'myfact456' in ansible_facts"
+      - "ansible_facts.myfact456 == 'test'"

using-facts/facts/.gitignore

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+*

using-facts/standard-facts.yaml

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+---
+
+- name: A standard fact can be defined in a playbook...
+  gather_facts: no
+  hosts: localhost
+  tasks:
+  - set_fact:
+      myfact123: test
+  - assert:
+      that:
+      # A fact is available as a standard variable
+      - "myfact123 == 'test'"
+      # But not part of the "ansible_facts" dictionary
+      - "'myfact123' not in ansible_facts"
+
+- name: and used in another role/playbook !
+  gather_facts: no
+  hosts: localhost
+  tasks:
+  - assert:
+      that:
+      - "myfact123 == 'test'"
+      - "'myfact123' not in ansible_facts"