- https://docs.ansible.com/ansible/latest/getting_started/get_started_ansible.html
- https://docs.ansible.com/ansible/2.8/user_guide/playbooks_best_practices.html
- https://docs.ansible.com/ansible/2.9/modules/list_of_all_modules.html
- https://galaxy.ansible.com/ui/standalone/roles/geerlingguy/swap/
- http://supervisord.org/