打印主机所有内置变量

- name: print all 内置 vars
  debug: var=hostvars[inventory_hostname]

- name: print 内置变量
  debug: var=ansible_facts

---
- name: Test
  hosts: deployment
  gather_facts: F
  tasks:
  - name: Get compute node name
    debug:
      msg: "{{ hostvars }}"
    loop: "{{ groups['compute'] }}"