如何从 vmware_guest_disk_facts 获取字典条目

2023-12-10

我正在尝试获取特定硬盘的数据存储名称,但我未能成功地找出列表中的选择条目。

此输出来自 ansible 模块“vmware_guest_disk_facts” 我将此输出保存到名为“vm_info”的变量中。

   "guest_disk_facts": {
        "0": {
            "backing_filename": "stuffstuff",
            "capacity_in_kb": 106954752,
            "backing_eagerlyscrub": false,
            "backing_datastore": "WHAT I REALLY WANT",
            "backing_writethrough": false,
            "label": "Hard disk 1",
            "backing_type": "FlatVer2",
            "key": 2000,
            "capacity_in_bytes": 109521666048,
            "backing_thinprovisioned": false,
            "controller_key": 1000,
            "summary": "106,954,752 KB",
            "unit_number": 0,
            "backing_uuid": "info"
        },
        "1": {
            "backing_filename": "stuffstuff",
            "capacity_in_kb": 15728640,
            "backing_eagerlyscrub": false,
            "backing_datastore": "DON'T CARE OF ABOUT THIS ONE",
            "backing_writethrough": false,
            "label": "Hard disk 2",
            "backing_type": "FlatVer2",
            "key": 2001,
            "capacity_in_bytes": 16106127360,
            "backing_thinprovisioned": false,
            "controller_key": 1000,
            "summary": "15,728,640 KB",
            "unit_number": 1,
            "backing_uuid": "info"
        }

    - debug:
        msg: "{{ item.guest_disk_facts | json_query(query) }}"
      with_items: "{{ vm_info.results }}"
      vars:
        query: "guest_disk_facts.0.backing_datastore" #done w/ & w/o quotes around 0

我还尝试了以下查询,我觉得此时我已经用尽了所有选项。

    query: "guest_disk_facts.[0].backing_datastore"#done w/ & w/o quotes around 0

    query: "guest_disk_facts[0].backing_datastore" #done w/ & w/o quotes around 0

    query: "guest_disk_facts.*.backing_datastore" #will give me backing_datastore entries for both dictionaries in this case

我只想获取此词典列表中的一个条目的 backing_datastore

消息:“我真正想要什么”

但到目前为止,我返回了以下错误:

期望:['quoted_identifier','unquoted_identifier','lbracket','lbrace'],得到:数字:第 17 列解析错误,标记“0”(数字),对于表达式

OR

msg: ""

OR

msg:[

"0",

]


下面的任务给出了“你真正想要什么”

- debug:
    msg: "{{ guest_disk_facts['0'|quote].backing_datastore }}"

重点是引用引用的密钥。键“0”和“1”不是有效变量并且必须被引用。

下面的循环

- debug:
    msg: "{{ guest_disk_facts[item|quote].backing_datastore }}"
  loop: "{{ guest_disk_facts.keys() }}"

gives

ok: [localhost] => (item=1) => 
  msg: DON'T CARE OF ABOUT THIS ONE
ok: [localhost] => (item=0) => 
  msg: WHAT I REALLY WANT
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