Ansible Variable Persistence

• Reference: Stackoverflow

set_fact module only sets facts available during a run. For persistent facts, you’ll need to either:

Static:

• define them in one of the following:
  • vars/
  • group_vars/
  • host_vars/

Dynamic:

• Assign them to hosts using your language of choice via Ansible’s Dynamic Inventory:
  • http://docs.ansible.com/ansible/intro_dynamic_inventory.html
  • http://docs.ansible.com/ansible/developing_inventory.html

The latter is what I usually choose to do, as it is quite simple to set up, and the facts are always available on all hosts, even if you are doing something like:

• getting all the facts for all the hosts while connected to a nagios host in order to generate its configuration files.

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