在 ansible-playbook 我得到一个错误 'foo' is undefined running this playbook

Question

Any ideas why this happens?

undefined variable - The error was: 'foo' is undefined. I've tried using test.vars in yaml (test.yml) also.

test.yml

---
- hosts: all
  roles:
    - test

roles/test/tasks/main.yml

- name: test
  debug:
    msg: "{{ foo }}"

group_vars/test.vars

foo=bar

inventory

[all]
localhost

ansible-playbook -i inventory --extra-vars group_vars/@test.vars test.yml

Answer 1

They're called group_vars because they're related to the hosts group name.

• Instead of [all] the group name should be [test] in the inventory file and in the main playbook.
• The variables file name should be equivalent to the hosts group name and in YAML form test.yml
• The variables should be written in YAML foo: bar

After these changes, there is no need to pass the file on the command line, because ansible will detect it automatically:

ansible-playbook -i inventory test.yml

Answer 2

I found the answer is moving the @ outside, so; it looks like this:

--extra-vars @group_vars/test.vars