Question

我试图循环遍历哈希和与之关联的数组，如下所示：

VAR：

  dictionary:
    aword: [ ant, den ]
    bword: [ fat, slim ]

任务：

name: Create symlinks
command: do something with item[0] over item[1]
with_nested:
  - "{{ item.key }}"
  - "{{ item.value }}"
with_dict: dictionary

这不起作用。我做错了什么或者Ansible不支持这样的迭代吗？

Answer 1

我使用

解决了这个问题

with_subelements

像这样

乏：

dictionary:
- name: aword
  words:
    - ant
    - den
- name: bword
  words:
    - fat
    - slim

任务：

name: Create symlinks
command: do something with item.0.name over item.1
with_subelements: 
  - dictionary
  - words

Answer 2

为了完整性，也可以使用with_nested通过在Ansible中创建嵌套列表来完成。这样做可以实现相同的循环行为，而无需设置var / fact。当您要实例化任务本身上的嵌套列表时，这很有用。

像这样：

---

- hosts: localhost
  connection: local
  become: false

  tasks:

    - debug:
        msg: "do something with {{ item[0] }} over {{ item[1] }}"
      with_nested:
        - - ant  # note the two hyphens to create a list of lists
          - den

        - - fat
          - slim

输出：

TASK [debug] ********************************************************************************************
ok: [localhost] => (item=[u'ant', u'fat']) => {
    "changed": false,
    "item": [
        "ant",
        "fat"
    ],
    "msg": "do something with ant over fat"
}
ok: [localhost] => (item=[u'ant', u'slim']) => {
    "changed": false,
    "item": [
        "ant",
        "slim"
    ],
    "msg": "do something with ant over slim"
}
ok: [localhost] => (item=[u'den', u'fat']) => {
    "changed": false,
    "item": [
        "den",
        "fat"
    ],
    "msg": "do something with den over fat"
}
ok: [localhost] => (item=[u'den', u'slim']) => {
    "changed": false,
    "item": [
        "den",
        "slim"
    ],
    "msg": "do something with den over slim"
}

是否可以使用Ansible Playbook与with_dict和with_nested一起循环？

2 个答案: