ansible - 如何通过 Ansible 创建嵌套目录结构

Question

最后，我找到了一个关于如何创建与 Bash 命令等效的嵌套目录结构的解决方案

mkdir -p jenkins/cache/{war,tmp,workspace}

我的剧本

---
- name: Create directories
  hosts: localhost
  vars:
    dirs: [
      jenkins, # for one elemnt it can be string
      [ cache ],
      [ war, tmp, workspace ]
    ]
    base_directory: ~/tmp

  tasks:
  - debug:
      msg="{{base_directory}}/{{item.0}}/{{item.1}}/{{item.2}}"
    with_nested: "{{ dirs | list }}"

它产生:

PLAY [Create directories] **********************************************************************************************************************************

TASK [debug] ***********************************************************************************************************************************************
ok: [localhost] => (item=['jenkins', 'cache', 'war']) => {
    "msg": "~/tmp/jenkins/cache/war"
}
ok: [localhost] => (item=['jenkins', 'cache', 'tmp']) => {
    "msg": "~/tmp/jenkins/cache/tmp"
}
ok: [localhost] => (item=['jenkins', 'cache', 'workspace']) => {
    "msg": "~/tmp/jenkins/cache/workspace"
}

PLAY RECAP *************************************************************************************************************************************************
localhost                  : ok=1    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0

但是如果我想使用更多(或更少)的嵌套级别，就会出现问题。我需要更多(或更少)item.X。
如何在 Ansible 中动态执行？

我知道有社区模块filetree ，这可能会有帮助，但我不想或不需要使用它。

Answer 1

您绝对可以使用 with_nested 并使用 / join 二级列表。

所以，像这样的任务会做:

- debug:
    msg: >-
      {{ base_directory }}/
      {{- item | join('/') }}
  with_nested: "{{ dirs }}"

---

给定任务:

- debug:
    msg: >-
      {{ base_directory }}/
      {{- item | join('/') }}
  with_nested: "{{ dirs }}"
  vars:
    dirs:
      - jenkins
      - - cache
      - - war
        - tmp
        - workspace
    base_directory: ~/tmp

这会产生:

ok: [localhost] => (item=['jenkins', 'cache', 'war']) => 
  msg: ~/tmp/jenkins/cache/war
ok: [localhost] => (item=['jenkins', 'cache', 'tmp']) => 
  msg: ~/tmp/jenkins/cache/tmp
ok: [localhost] => (item=['jenkins', 'cache', 'workspace']) => 
  msg: ~/tmp/jenkins/cache/workspace