ansible include_vars文件，文件名为os和版本

我现在有多个角色来加载一些操作系统版本特定的变量：

- name: load CentOS 7 variable
  include_vars: "CentOS-7.yml"
  when:
    - ansible_facts['distribution'] == "CentOS"
    - ansible_facts['distribution_major_version'] == "7"

- name: load Ubuntu 18 variables
  include_vars: "Ubuntu-18.yml"
  when:
    - ansible_facts['distribution'] == "Ubuntu"
    - ansible_facts['distribution_major_version'] == "18"

我想有一个通用的角色；如何加载带有操作系统名称和版本的vars文件？差不多

- name: load OS specific variables
  include_vars: "{{distribution}}-{{distribution_major_version}}.yml"

你就快到了：

- name: load OS specific variables
  include_vars: "{{ ansible_distribution }}-{{ ansible_distribution_major_version }}.yml"

这与使用

ansible\u facts

hash相同，但更紧凑。以下是等价物：

- name: load OS specific variables
  include_vars: "{{ ansible_facts['distribution'] }}-{{ ansible_facts['distribution_major_version'] }}.yml"

请注意，如果需要，可以使用更具体的加载变量。例如：

- name: look for the most specific os vars and drop to default
  include_vars: "{{ item }}"
  loop: "{{ query('first_found', { 'files': myfiles, 'paths': mypaths }) }}"
  vars:
    myfiles:
      - "{{ ansible_distribution }}-{{ ansible_distribution_version }}.yml"
      - "{{ ansible_distribution }}-{{ ansible_distribution_major_version }}.yml"
      - "{{ ansible_distribution }}.yml"
      - "default.yml"
    mypaths:
      - vars
      - someother/vars/dir

你就快到了：

- name: load OS specific variables
  include_vars: "{{ ansible_distribution }}-{{ ansible_distribution_major_version }}.yml"

这与使用

ansible\u facts

hash相同，但更紧凑。以下是等价物：

- name: load OS specific variables
  include_vars: "{{ ansible_facts['distribution'] }}-{{ ansible_facts['distribution_major_version'] }}.yml"

请注意，如果需要，可以使用更具体的加载变量。例如：

- name: look for the most specific os vars and drop to default
  include_vars: "{{ item }}"
  loop: "{{ query('first_found', { 'files': myfiles, 'paths': mypaths }) }}"
  vars:
    myfiles:
      - "{{ ansible_distribution }}-{{ ansible_distribution_version }}.yml"
      - "{{ ansible_distribution }}-{{ ansible_distribution_major_version }}.yml"
      - "{{ ansible_distribution }}.yml"
      - "default.yml"
    mypaths:
      - vars
      - someother/vars/dir