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python - Ansible combine 仅结合最后一项

问题描述

我需要完成类似于Ansible 的事情，如何在循环期间修改变量？和Ansible Loop 和 Update Dict但是，我需要能够将两个包含列表的字典组合成一个字典。一个字典存储在 group_vars 文件中，另一个字典存储在 host_vars 中：

组变量：

access_control:
  - source_address: "10.0.0.1/24"
    description: "Test 1"
  - source_address: "11.0.0.1/24"
    description: "Test 2"
  - source_address: "12.0.0.1/24"
    description: "Test 3"

主机变量：

access_control_id:
  - access_id: "a01"
  - access_id: "a06"

期望的结果是将每个 access_control_id 应用于每个 access_control 项：

"combined_access_control": [
    {
      "source_address": "10.0.0.1/24"
      "description": "Test 1"
      "access_id": "a01"
    },
    {
      "source_address": "10.0.0.1/24"
      "description": "Test 1"
      "access_id": "a06"
    },
    {
      "source_address": "11.0.0.1/24"
      "description": "Test 2"
      "access_id": "a01"
    },
    {
      "source_address": "11.0.0.1/24"
      "description": "Test 2"
      "access_id": "a06"
    },
    {
      "source_address": "12.0.0.1/24"
      "description": "Test 3"
      "access_id": "a01"
    },
    {
      "source_address": "12.0.0.1/24"
      "description": "Test 3"
      "access_id": "a06"
    },
]

我以为我可以使用这样的东西：

- name: Combine variables into one dict
  set_fact:
    combined_access_control: "{{ combined_access_control| default ([item.1]) + [ { 'access_id': item.1.access_id } ] }}"
  loop: "{{ access_control | product (access_control_id)| list }}"

但我只得到一个带有 access_ids 的字典：

    "combined_access_control": [
        {
            "access_id": "a01"
        },
        {
            "access_id": "a06"
        },
        {
            "access_id": "a01"
        },
        {
            "access_id": "a06"
        },
        {
            "access_id": "a01"
        },
        {
            "access_id": "a06"
        }
    ],

标签： pythonansible

解决方案

您需要组合列表中的 dict，并将其附加到列表中，如下所示：

    - name: Combine variables into one dict
      set_fact:
         combined_access_control: "{{ combined_access_control | default([]) + [ [] | combine (item.0) | combine ({ 'access_id': item.1.access_id }) ]}}"
      loop: "{{ access_control | product (access_control_id) | list }}"

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