我目前正在编写一个剧本，用于在 Nutanix Prism Central 上创建 K8s 集群。一切运行顺利，但当一个或多个集群上存在 VLAN 时，我遇到了一个问题。
在我的例子中，VLAN 由其名称和其 UUID 表示（这个可以在 entities[] 内的每个索引的元数据中检索到）。
由于 VLAN 可能存在多次（因为它配置在不同的集群上），这意味着 UUID 值在元数据 {} 上可能不同，但其名称永远不会不同。下面是我得到的结果：
ok: [localhost] => {
"msg": {
"changed": false,
"error": null,
"failed": false,
"response": {
"api_version": "3.1",
"entities": [
{
"metadata": {
"categories": {},
"categories_mapping": {},
"creation_time": "2023-03-08T10:11:44Z",
"kind": "subnet",
"last_update_time": "2023-03-08T10:11:44Z",
"spec_hash": "00000000000000000000000000000000000000000000000000",
"spec_version": 0,
"uuid": "aaaa-bbbb-cccc-dddddd"
},
"spec": {
"cluster_reference": {
"kind": "cluster",
"name": "Cluster02",
"uuid": "123123-123123-123123"
},
"name": "MY-VLAN",
"resources": {
"subnet_type": "VLAN",
"virtual_switch_uuid": "321-321-321-321-321",
"vlan_id": 66,
"vswitch_name": "br0"
}
},
"status": {
"cluster_reference": {
"kind": "cluster",
"name": "Cluster02",
"uuid": "123123-123123-123123"
},
"name": "MY-VLAN",
"resources": {
"ip_usage_stats": {
"num_macs": 0
},
"subnet_type": "VLAN",
"virtual_switch_uuid": "321-321-321-321-321",
"vlan_id": 66,
"vswitch_name": "br0"
},
"state": "COMPLETE"
}
},
{
"metadata": {
"categories": {},
"categories_mapping": {},
"creation_time": "2023-03-08T10:11:42Z",
"kind": "subnet",
"last_update_time": "2023-03-08T10:11:42Z",
"spec_hash": "00000000000000000000000000000000000000000000000000",
"spec_version": 0,
"uuid": "999-999-999-999-999"
},
"spec": {
"cluster_reference": {
"kind": "cluster",
"name": "Cluster01",
"uuid": "0005f64b-e395-8cc2-16af-88e9a456e31a"
},
"name": "MY-VLAN",
"resources": {
"subnet_type": "VLAN",
"virtual_switch_uuid": "d4f9ed4f-72c3-4ad0-8223-070fba6a9aea",
"vlan_id": 66,
"vswitch_name": "br0"
}
},
"status": {
"cluster_reference": {
"kind": "cluster",
"name": "Cluster01",
"uuid": "0005f64b-e395-8cc2-16af-88e9a456e31a"
},
"name": "MY-VLAN",
"resources": {
"ip_usage_stats": {
"num_macs": 0
},
"subnet_type": "VLAN",
"virtual_switch_uuid": "d4f9ed4f-72c3-4ad0-8223-070fba6a9aea",
"vlan_id": 66,
"vswitch_name": "br0"
},
"state": "COMPLETE"
}
}
}
}
}
目前，如果我知道索引号，我知道如何通过以下任务手动检索 UUID：
- name: Get Network
ntnx_subnets_info:
filter:
#subnet_type: "VLAN"
name: "MY-VLAN"
kind: subnet
register: result
ignore_errors: True
- name: output of identified network
debug:
msg: '{{ result.response.entities[0].metadata.uuid }}'
但我目前无法获取专用集群上的 UUID。例如，如果我需要从 Cluster01 检索 vlan uuid，我必须选择“{{ result.response.entities[1].metadata.uuid }}”
是否有人知道是否可以根据嵌套属性（在我的情况下是 spec.cluster_reference.name）动态检索值？
多谢 ！
答案1
我认为你可以使用selectattr过滤器以及map
您可以像这样检索 VLAN 的 UUID：
- name: Find VLAN UUID for Cluster01
set_fact:
vlan_uuid: "{{ result.response.entities | selectattr('spec.cluster_reference.name', 'equalto', 'Cluster01') | map(attribute='metadata.uuid') | first }}"
- name: Display VLAN UUID
debug:
msg: "VLAN UUID for Cluster01: {{ vlan_uuid }}"