如何遍历字典列表，并在Ansible中打印出每个键和值对 [英] How to loop through a list of dictionary, and print out every key and value pair in Ansible

问题描述

我在Ansible配置中有一个字典列表

I have an list of dictionary in Ansible config

myList
    - name: Bob
      age: 25
    - name: Alice
      age: 18
      address: USA

我写代码为

- name: loop through
  debug: msg ="{{item.key}}:{{item.value}}"
  with_items: "{{ myList }}"

我想打印出来

msg: "name:Bob age:25 name:Alice age:18 address:USA"

如何遍历该词典并获取键和值对?因为它不知道关键是什么.如果我将其更改为{{item.name}}，则ansible可以使用，但我也想知道密钥

How can I loop through this dictionary and get key and value pairs? Because it don't know what is the key. If I change as {{ item.name }}, ansible will work, but I also want to know key

推荐答案

如果要遍历列表并分别解析每个项目，则:

If you want to loop through the list and parse every item separately:

- debug: msg="{{ item | dictsort | map('join',':') | join(' ') }}"
  with_items: "{{ myList }}"

将打印:

"msg": "age:25 name:Bob"
"msg": "address:USA age:18 name:Alice"

如果您想将所有内容合并为一行，请使用:

If you want to join everything into one line, use:

- debug: msg="{{ myList | map('dictsort') | sum(start=[]) | map('join',':') | join(' ') }}"

这将给出:

"msg": "age:25 name:Bob address:USA age:18 name:Alice"

请记住，字典不是在Python中排序的，因此通常不能期望项目的顺序与yaml文件中的顺序相同.在我的示例中，它们在dictsort过滤器之后按键名排序.

Keep in mind that dicts are not sorted in Python, so you generally can't expect your items to be in the same order as in yaml-file. In my example, they are sorted by key name after dictsort filter.

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