YAML 列表过滤

Question

有人可以帮助我解决以下问题：

或者

ok: [localhost] => {
    "tag_info": {
        "changed": false,
        "msg": "All items completed",
        "results": [
            {"vm_list": [ "NSY6TFSANSBL01"]},
        ]


OR

ok: [localhost] => {
    "tag_info": {
        "changed": false,
        "msg": "All items completed",
        "results": [
            {"vm_list": [ "NSY6TFSANSBL01"]},
            {"vm_list": [ "NSY6TFSANSBL01,NSY6TFSANSBL02"]},
            {"vm_list": [ "NSY6TFSANSBL01,NSY6TFSANSBL02,NSY6TFSANSBL03"]},
        ]

Intersection of N lists works with the code
   - set_fact:
        final_list: "{{ final_list|
                        default(tag_info.results.0.vm_list)|
                        intersect(tag_info.results[item].vm_list) }}"
      loop: "{{ range(1, tag_info.results|length, 1)|list }}"

+++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++

当只有一个 vm_list 对象时，我希望 final_list 为 {"vm_list": [ "NSY6TFSANSBL01"]} 否则它应该是多个列表的交集. 你能告诉我怎么写吗？

Answer 1

这样写

- set_fact:
    final_list: "{{ (tag_info | json_query('results[*].vm_list')|flatten(levels=1)|unique if tag_info.results|length > 1) | default(tag_info.results.0.vm_list) }}"
  loop: "{{ tag_info.results }}"

- debug:
    var: final_list

假设：

所有 vm_list 个问题的对象是数组中的单个字符串。

我假设它不是那个，它实际上是一个字符串列表，如下所示，

ok: [localhost] => {
    "tag_info": {
        "changed": false,
        "msg": "All items completed",
        "results": [
            {"vm_list": [ "NSY6TFSANSBL01"]},
        ]


OR

ok: [localhost] => {
    "tag_info": {
        "changed": false,
        "msg": "All items completed",
        "results": [
            {"vm_list": [ "NSY6TFSANSBL01"]},
            {"vm_list": [ "NSY6TFSANSBL01","NSY6TFSANSBL02"]},
            {"vm_list": [ "NSY6TFSANSBL01","NSY6TFSANSBL02","NSY6TFSANSBL03"]},
        ]

YAML 列表过滤

YAML List Filtering

ansible

ansible-template

ansible-2.x

ansible-facts

ansible-inventory