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zagpoint
Asked: 2025-04-05 07:25:48 +0800 CST

您可以动态更新 ansible 字典吗？

  • 772

我从 REST API 调用的输出中捕获了一个 dict/json 类型的对象，假设它位于一个名为ouput的变量/寄存器中。数据如下所示。为了完整起见，我分享了整个对象并做了一些基本的清理。请只关注我接下来要讨论的那一行 ;-)

            {
            "_create_time": 1724823837185,
            "_create_user": "system",
            "_last_modified_time": 1736218001919,
            "_last_modified_user": "nsx_policy",
            "_protection": "NOT_PROTECTED",
            "_revision": 1,
            "_system_owned": false,
            "display_name": "w1-vc1-c4n17.example.com",
            "host_switch_spec": {
                "host_switches": [
                    {
                        "cpu_config": [],
                        "ecmp_mode": "L3",
                        "host_switch_id": "50 01 cb 21 be 19 cb 38-78 bd 67 bc b3 0e 91 f1",
                        "host_switch_mode": "STANDARD",
                        "host_switch_name": "w1-vc1-c4-dvs",
                        "host_switch_profile_ids": [
                            {
                                "key": "UplinkHostSwitchProfile",
                                "value": "/infra/host-switch-profiles/6d7a0ed8-c86a-4190-9121-ce6f863226ae"
                            },
                            {
                                "key": "VtepHAHostSwitchProfile",
                                "value": "/infra/host-switch-profiles/0de8282e-7385-4e8e-a905-0c11960db728"
                            }
                        ],
                        "host_switch_type": "VDS",
                        "ip_assignment_spec": {
                            "ip_pool_id": "/infra/ip-pools/w1-nsx1-esxi-teps",
                            "resource_type": "StaticIpPoolSpec"
                        },
                        "is_migrate_pnics": false,
                        "not_ready": false,
                        "portgroup_transport_zone_id": "/infra/sites/default/enforcement-points/default/transport-zones/77166711-1f83-407f-8c27-a4e1b8b4e1e5",
                        "transport_zone_endpoints": [
                            {
                                "transport_zone_id": "/infra/sites/default/enforcement-points/default/transport-zones/4b367ddf-d4ac-460b-a884-24846ff4edf6",
                                "transport_zone_profile_ids": [
                                    {
                                        "profile_id": "/infra/transport-zone-profiles/52035bb3-ab02-4a08-9884-18631312e50a",
                                        "resource_type": "BfdHealthMonitoringProfile"
                                    }
                                ]
                            },
                            {
                                "transport_zone_id": "/infra/sites/default/enforcement-points/default/transport-zones/bc19b340-f0b5-46d8-9454-6d94d3288821",
                                "transport_zone_profile_ids": [
                                    {
                                        "profile_id": "/infra/transport-zone-profiles/52035bb3-ab02-4a08-9884-18631312e50a",
                                        "resource_type": "BfdHealthMonitoringProfile"
                                    }
                                ]
                            }
                        ],
                        "uplinks": [
                            {
                                "uplink_name": "uplink-2",
                                "vds_uplink_name": "uplink2"
                            },
                            {
                                "uplink_name": "uplink-1",
                                "vds_uplink_name": "uplink1"
                            }
                        ]
                    }
                ],
                "resource_type": "StandardHostSwitchSpec"
            },
            "id": "w1-vc1-c4n17-6adb838f-669c-48ca-b76f-e1238984ef93host-2171",
            "is_overridden": false,
            "maintenance_mode": "DISABLED",
            "marked_for_delete": false,
            "node_deployment_info": {
                "compute_collection_id": "6adb838f-669c-48ca-b76f-e1238984ef93:domain-c2147",
                "discovered_ip_addresses": [
                    "x.x.x.x",
                    "x.x.x.x"
                ],
                "discovered_node_id": "6adb838f-669c-48ca-b76f-e1238984ef93:host-2171",
                "fqdn": "w1-vc1-c4n17.example.com",
                "ip_addresses": [
                    "10.x.x.x"
                ],
                "managed_by_server": "10.x.x.x",
                "os_type": "ESXI",
                "os_version": "x.x.x"
            },
            "overridden": false,
            "owner_id": "1ae23909-d587-4683-a515-4c2001940803",
            "parent_path": "/infra/sites/default/enforcement-points/default",
            "path": "/infra/sites/default/enforcement-points/default/host-transport-nodes/w1-vc1-c4n17-6adb838f-669c-48ca-b76f-e1238984ef93host-2171",
            "realization_id": "c2c69a21-698a-4586-869a-7c0b0a651601",
            "relative_path": "w1-vc1-c4n17-6adb838f-669c-48ca-b76f-e1238984ef93host-2171",
            "remote_path": "",
            "resource_type": "HostTransportNode",
            "unique_id": "c2c69a21-698a-4586-869a-7c0b0a651601"
        }

我想通过更改以下行来更新该对象：

"host_switch_mode": "STANDARD",

到：

"host_switch_mode": "LEGACY",

我会将结果 JSON 作为消息体传递给 POST API 调用。我尝试过 anislbe 的组合过滤器，但没有得到预期的结果。例如：

- Name: example post/put API call
  uri:
    url: "https://{{ nsx }}/policy/api/v1/infra/host-transport-node-profiles/{{ id }}"
        force_basic_auth: yes
        validate_certs: no
        headers:
          Accept: "application/json"
          Content-Type: "application/json"
        user: "{{ username }}"
        password: "{{ password }}"
        method: PUT
        body: "{{ ouput | combine( {'host_switch_spec': {'host_switches': [ {'host_switch_mode': "LEGACY"},],}, }, recursive=true) }}"
        status_code: "200"
        body_format: json

使用组合过滤器，我看到的是，整个 host_switch_spec 部分被替换（因此丢失了其他属性，如 host_switch_name、host_switch_id 等），而不是仅仅合并相关行，这不是我想要的：

            "host_switch_spec": {
            "host_switches": [
                {
                    "host_switch_mode": "STANDARD"
                }
            ],
            "resource_type": "StandardHostSwitchSpec"
        },

我做错了什么？我查看了组合过滤器的手册页，并尝试了所有list_merge选项，但都无济于事。

更新：

为了简单起见，我在上一篇文章中没有提到的一个复杂问题是，我有一个包含这些“输出”数据对象的列表，我需要像下面这样循环处理它们。假设这个列表在变量“tn”中：

  # Modify the transport node json data on the fly and feed it to the API as message body
  - debug: 
      msg: 
        - "{{ item }}"
        - "{{ item | combine( {'host_switch_spec': {'host_switches': [ {'host_switch_mode': mode}, ], }, },) }}"
    with_items: "{{ tn }}"
    loop_control:
      label: "{{ item.display_name }}"

概括：

感谢大家的帮助和指导。我还没有完成端到端测试，但以下是我根据 Vladimir Botka 提供的精彩示例得出的结论：

      # how to modify the transport node json data on the fly and feed it to the API as message body
  - name: Testing switch mode update on the fly
    debug: 
      msg:
        #- "hs: {{ (item.host_switch_spec.host_switches + [ hs_update ]) | combine }}"
        #- "update: {{ {'host_switch_spec': {'host_switches': [ (item.host_switch_spec.host_switches + [ hs_update ]) | combine ]}} }}"
        #- "result: {{ item | combine({'host_switch_spec': {'host_switches': [ (item.host_switch_spec.host_switches + [ hs_update ]) | combine ]}}) }}"
        - "{{ item | combine({'host_switch_spec': {'host_switches': [ (item.host_switch_spec.host_switches + [ hs_update ]) | combine ]}}) }}"
    loop: "{{ tn }}"
    loop_control:
      label: "{{ item.display_name }}"
      index_var: counter
    vars:
      hs_update:
        host_switch_mode: "LEGACY"

结果看起来很有希望（显示最后一个-#24，并且仅显示部分以避免混乱）：

ok: [localhost] => (item=w11-vc1-c1n24.example.com) => {
"msg": [
    "24':' STANDARD",
    {
        "_create_time": 1743198123451,
        "_create_user": "system",
        "_last_modified_time": 1743445520238,
        "_last_modified_user": "system",
        "_protection": "NOT_PROTECTED",
        "_revision": 2,
        "_system_owned": false,
        "display_name": "w11-vc1-c1n24.example.com",
        "host_switch_spec": {
            "host_switches": [
                {
                    "cpu_config": [],
                    "ecmp_mode": "L3",
                    "host_switch_id": "50 1e 66 c9 c5 fb da b3-5e 1f 45 fc 2a 42 99 50",
                    "host_switch_mode": "LEGACY",
                    "host_switch_name": "w11-vc1-dvs",
                    "host_switch_profile_ids": [
                        {
                            "key": "UplinkHostSwitchProfile",
                            "value": "/infra/host-switch-profiles/ace9be64-9728-4340-968e-a62dae6a3d00"
                        },
                        {
                            "key": "VtepHAHostSwitchProfile",
                            "value": "/infra/host-switch-profiles/0de8282e-7385-4e8e-a905-0c11960db728"
                        }
                    ],
                    "host_switch_type": "VDS",
json

1 个回答

  1. Best Answer

    output.host_switch_spec.host_switches是包含一个项目的列表

        output.host_switch_spec.host_switches:
    -   cpu_config: []
        ecmp_mode: L3
        host_switch_id: 50 01 cb 21 be 19 cb 38-78 bd 67 bc b3 0e 91 f1
        host_switch_mode: STANDARD
        host_switch_name: w1-vc1-c4-dvs
    ...

    将要更新的内容输入字典中。例如：

        hs_update:
      host_switch_mode: LEGACY

    合并词典

        hs: "{{ (output.host_switch_spec.host_switches + [hs_update]) | combine }}"

    给出

        hs:
        cpu_config: []
        ecmp_mode: L3
        host_switch_id: 50 01 cb 21 be 19 cb 38-78 bd 67 bc b3 0e 91 f1
        host_switch_mode: LEGACY
        host_switch_name: w1-vc1-c4-dvs
    ...

    注意：如果有更多项目，您必须创建一个产品并映射组合功能。

    创建字典更新

        update:
      host_switch_spec:
        host_switches: "{{ [hs] }}"

    并合并结果

        result: "{{ output | combine(update) }}"

    给出

        result:
        _create_time: 1724823837185
        _create_user: system
        _last_modified_time: 1736218001919
        _last_modified_user: nsx_policy
        _protection: NOT_PROTECTED
        _revision: 1
        _system_owned: false
        display_name: w1-vc1-c4n17.example.com
        host_switch_spec:
            host_switches:
            -   cpu_config: []
                ecmp_mode: L3
                host_switch_id: 50 01 cb 21 be 19 cb 38-78 bd 67 bc b3 0e 91 f1
                host_switch_mode: LEGACY
                host_switch_name: w1-vc1-c4-dvs
    ...

    完整测试剧本示例

    - hosts: localhost

  vars:

    hs_update:
      host_switch_mode: LEGACY
    hs: "{{ (output.host_switch_spec.host_switches + [hs_update]) | combine }}"

    update:
      host_switch_spec:
        host_switches: "{{ [hs] }}"
    result: "{{ output | combine(update) }}"

  tasks:

    - include_vars:
        file: data.json
        name: output

    - debug:
        var: output.host_switch_spec.host_switches

    - debug:
        var: hs

    - debug:
        var: result

    问：** “‘host_switch_spec’ 同时具有‘host_switches’ 和‘resource_type’ ”

    A：递归地合并字典

        result: "{{ output | combine(update, recursive=True) }}"

    给出

        result:
        _create_time: 1724823837185
        _create_user: system
        _last_modified_time: 1736218001919
        _last_modified_user: nsx_policy
        _protection: NOT_PROTECTED
        _revision: 1
        _system_owned: false
        display_name: w1-vc1-c4n17.example.com
        host_switch_spec:
            host_switches:
            -   cpu_config: []
                ecmp_mode: L3
                host_switch_id: 50 01 cb 21 be 19 cb 38-78 bd 67 bc b3 0e 91 f1
                host_switch_mode: LEGACY
                host_switch_name: w1-vc1-c4-dvs
                ...
                uplinks:
                -   uplink_name: uplink-2
                    vds_uplink_name: uplink2
                -   uplink_name: uplink-1
                    vds_uplink_name: uplink1
            resource_type: StandardHostSwitchSpec
        id: w1-vc1-c4n17-6adb838f-669c-48ca-b76f-e1238984ef93host-2171
        is_overridden: false
        maintenance_mode: DISABLED
    ...

    问：“这些‘输出’数据对象的列表。”

    A：如果项目较多，例如：

    output:
  bar: a
  foo: b
  hs_spec:
    hs:
      - {em: L3, hm: S3}
      - {em: L4, hm: S4}
      - {em: L5, hm: S5}
    rt: c
  mm: DISABLED

    更新所有项目

    hs_update:
  hm: LEGACY
hs: "{{ output.hs_spec.hs | product([hs_update])
                          | map('flatten')
                          | map('combine') }}"

    给出

    hs:
  - {em: L3, hm: LEGACY}
  - {em: L4, hm: LEGACY}
  - {em: L5, hm: LEGACY}

    然后，合并词典

    update:
  hs_spec:
    hs: "{{ hs }}"
result: "{{ output | combine(update, recursive=True) }}"

    给出

    result:
  bar: a
  foo: b
  hs_spec:
    hs:
      - {em: L3, hm: LEGACY}
      - {em: L4, hm: LEGACY}
      - {em: L5, hm: LEGACY}
    rt: c
  mm: DISABLED
    • 3

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