参考文章：https://www.middlewareinventory.com/blog/ansible-facts-list-how-to-use-ansible-facts/

常用指令：

ansible <hostname (or) hostgroup> -m setup

本地测试指令如：

ansible -i deploy/profiles/ha/hosts config  -u root --key-file ~/.ssh/build.key -m setup

Ansible Gathered Facts or playbook variables belongs to one of the following types

Dictionary：{{ansible_apparmor.status}}

List：{{ansible_all_ipv4_addresses[1]}} （不带[1]会返回整个list内容）

AnsibleUnsafeText：{{ ansible_architecture }}

测试variable类型：{{ <the variable name> | type_debug }}