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ansible 变量作为环境变量

tag-icon • tag-icon linux ansible
ansible 变量作为环境变量

我试试这个

- name: Install required packages
 shell: "apt-get instal linux-headers-{{ ansible_kernel }}"

然而得到这个

{"msg": "The task includes an option with an undefined variable. The error was: 'ansible_kernel' is undefined\

我可以通过查看这个变量

ansible -i myinventoryfile myhost -m setup | grep kernel

并且

ansible -i myinventoryfile myhost -m shell -a "uname -r"

我怎样才能让它工作？

答案1

对我有用。

% cat facts.yml
#!/usr/bin/env ansible-playbook
- name: test
  hosts: somehost.example.edu
  tasks:
  - debug: var=ansible_kernel

  - shell: "echo {{ ansible_kernel }} > /tmp/thisisverybaddonotuse"
% ./facts.yml

PLAY [test] ***

TASK [Gathering Facts] ***
ok: [somehost.example.edu]

TASK [debug] ***
ok: [somehost.example.edu] => {
    "ansible_kernel": "3.10.0-693.21.1.el7.x86_64"
}

TASK [command] ***
changed: [somehost.example.edu]

PLAY RECAP ***
somehost.example.edu  : ok=3    changed=1    unreachable=0    failed=0

% ssh somehost.example.edu "cat /tmp/thisisverybaddonotuse"
3.10.0-693.21.1.el7.x86_64

您可能没有收集事实，或者正在做一些从您发布的有限信息中不清楚的事情。

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