Anlible.如何在循环操作中添加条件?

Question

如何从这些数据中仅获得值("subclientName": "test") where "count" = 1

"subclientName": "start9pm"不应该在

选项中。

{
"countbackupsetName": {
"results": [
{
"actions": {
"xpath": "//subClientProperties[subClientEntity[@subclientName="test"]]/vmContent/children",
"namespaces": {},
"state": "present"
},
"changed": false,
"count": 2,
"msg": "found 2 nodes",
"invocation": {
"module_args": {
"path": "/var/lib/awx/projects/commv/parse/get_subclient2.xml",
"xpath": "//subClientProperties[subClientEntity[@subclientName="test"]]/vmContent/children",
"count": true,
"namespaces": {},
"state": "present",
"print_match": false,
"pretty_print": false,
"input_type": "yaml",
"backup": false,
"strip_cdata_tags": false,
"insertbefore": false,
"insertafter": false,
"xmlstring": null,
"value": null,
"attribute": null,
"add_children": null,
"set_children": null,
"content": null
}
},
"failed": false,
"item": {
"appName": "Virtual Server",
"backupsetName": "backupset-test",
"clientName": "name05-vcagent",
"displayName": "name05-VCAgent",
"instanceName": "VC01",
"subclientName": "test"
},
"ansible_loop_var": "item"
},
{
"actions": {
"xpath": "//subClientProperties[subClientEntity[@subclientName="start9pm"]]/vmContent/children",
"namespaces": {},
"state": "present"
},
"changed": false,
"count": 2,
"msg": "found 2 nodes",
"invocation": {
"module_args": {
"path": "/var/lib/awx/projects/commv/parse/get_subclient2.xml",
"xpath": "//subClientProperties[subClientEntity[@subclientName="start9pm"]]/vmContent/children",
"count": true,
"namespaces": {},
"state": "present",
"print_match": false,
"pretty_print": false,
"input_type": "yaml",
"backup": false,
"strip_cdata_tags": false,
"insertbefore": false,
"insertafter": false,
"xmlstring": null,
"value": null,
"attribute": null,
"add_children": null,
"set_children": null,
"content": null
}
},
"failed": false,
"item": {
"appName": "Virtual Server",
"backupsetName": "Test01",
"clientName": "name05-vcagent",
"displayName": "name05-VCAgent",
"instanceName": "VC01",
"subclientName": "start9pm"
},
"ansible_loop_var": "item"
}
],
"msg": "All items completed",
"changed": false
},
"_ansible_verbose_always": true,
"_ansible_no_log": false,
"changed": false
}

这就是我如何在没有条件操作的情况下选择所有内容的方法:

- debug:
msg: "{{ item.subclientName }}"
loop: "{{ countbackupsetName.results|map(attribute='item')|list }}"

结果:

{
"msg": "test",
"_ansible_verbose_always": true,
"_ansible_no_log": false,
"changed": false,
"item": {
"appName": "Virtual Server",
"backupsetName": "backupset-test",
"clientName": "name05-vcagent",
"displayName": "name05-VCAgent",
"instanceName": "VC01",
"subclientName": "test"
},
"ansible_loop_var": "item",
"_ansible_item_label": {
"appName": "Virtual Server",
"backupsetName": "backupset-test",
"clientName": "name05-vcagent",
"displayName": "name05-VCAgent",
"instanceName": "VC01",
"subclientName": "test"
}
}

我就是这样得到我需要的数据的，但是行数总是不同的。

我也不需要计数":"2,

代码:

- name: Show value in countbackupsetName.results.0.count
debug:
var: countbackupsetName.results.0.count
- debug:
var: countbackupsetName.results.0.item.subclientName        
- name: Show value in countbackupsetName.results.1.count
debug:
var: countbackupsetName.results.1.count
- debug:
var: countbackupsetName.results.1.item.subclientName

结果:

TASK [Show value in countbackupsetName.results.0.count] ************************
ok: [localhost] => {
"countbackupsetName.results.0.count": "1"
}
TASK [debug] *******************************************************************
ok: [localhost] => {
"countbackupsetName.results.0.item.subclientName": "test"
}
TASK [Show value in countbackupsetName.results.1.count] ************************
ok: [localhost] => {
"countbackupsetName.results.1.count": "2"
}

代码:

- name: debug jinja
debug:
msg: |
[
{% for p in countbackupsetName.results %}
{% for o in countbackupsetName.results[p].item %}
{
"count": "{{ countbackupsetName.results[p].count }}",
"key": "{{ o }}",
"value": "{{ countbackupsetName.results[p].item[o] }}"
},
{% endfor %}
{% endfor %}
]

结果:

line 112, column 9, but maynbe elsewhere in the file depending on the exact syntax problem.

Answer 1

不确定我是否得到了所需的输出。但无论如何，思路应该是一样的:循环遍历结果，检查条件并打印匹配项。给你:

- hosts: localhost
become: false
tasks:
- set_fact:
data: {
"countbackupsetName": {
"results": [
{
"actions": {
"xpath": "//subClientProperties[subClientEntity[@subclientName="test"]]/vmContent/children",
"namespaces": {},
"state": "present"
},
"changed": false,
"count": 2,
"msg": "found 2 nodes",
"invocation": {
"module_args": {
"path": "/var/lib/awx/projects/commv/parse/get_subclient2.xml",
"xpath": "//subClientProperties[subClientEntity[@subclientName="test"]]/vmContent/children",
"count": true,
"namespaces": {},
"state": "present",
"print_match": false,
"pretty_print": false,
"input_type": "yaml",
"backup": false,
"strip_cdata_tags": false,
"insertbefore": false,
"insertafter": false,
"xmlstring": null,
"value": null,
"attribute": null,
"add_children": null,
"set_children": null,
"content": null
}
},
"failed": false,
"item": {
"appName": "Virtual Server",
"backupsetName": "backupset-test",
"clientName": "name05-vcagent",
"displayName": "name05-VCAgent",
"instanceName": "VC01",
"subclientName": "test"
},
"ansible_loop_var": "item"
},
{
"actions": {
"xpath": "//subClientProperties[subClientEntity[@subclientName="start9pm"]]/vmContent/children",
"namespaces": {},
"state": "present"
},
"changed": false,
"count": 2,
"msg": "found 2 nodes",
"invocation": {
"module_args": {
"path": "/var/lib/awx/projects/commv/parse/get_subclient2.xml",
"xpath": "//subClientProperties[subClientEntity[@subclientName="start9pm"]]/vmContent/children",
"count": true,
"namespaces": {},
"state": "present",
"print_match": false,
"pretty_print": false,
"input_type": "yaml",
"backup": false,
"strip_cdata_tags": false,
"insertbefore": false,
"insertafter": false,
"xmlstring": null,
"value": null,
"attribute": null,
"add_children": null,
"set_children": null,
"content": null
}
},
"failed": false,
"item": {
"appName": "Virtual Server",
"backupsetName": "Test01",
"clientName": "name05-vcagent",
"displayName": "name05-VCAgent",
"instanceName": "VC01",
"subclientName": "start9pm"
},
"ansible_loop_var": "item"
}
],
"msg": "All items completed",
"changed": false
},
"_ansible_verbose_always": true,
"_ansible_no_log": false,
"changed": false
}
- debug:
var: result
# check for condition in result
when: result['item']['subclientName'] == "test"
# iterate over result list
loop: "{{ data['countbackupsetName']['results'] }}"
# set loop_var to not confuse ansible's "item" var with "item" key in data
loop_control:
loop_var: result

Answer 2

可以使用json_query解决问题!

代码:

- set_fact:
add_filter: "{{ countbackupsetName|json_query(query2) }}"
vars:
query2: "results[?count==`1`].item.subclientName"
- name: debug json_query(query2)
debug:
var: add_filter

结果:

TASK [debug json_query(query2)] ************************************************
ok: [localhost] => {
"add_filter": [
"test"
]
}

代码:

- set_fact:
add_filter: "{{ count_add_hostname.results|json_query(_query) }}"
vars:
_query: "[].{subclientName: '[?count==`1`]'.item.subclientName, 
backupsetName: '[?count==`1`]'.item.backupsetName}"
- name: debug json_query(add_filter)
debug:
var: add_filter

我尝试在循环中执行

result:

TASK [debug json_query(add_filter) var=add_filter] *****************************
ok: [localhost] => {
"add_filter": [
{
"backupsetName": null,
"subclientName": null
},
{
"backupsetName": null,
"subclientName": null
},
{
"backupsetName": null,
"subclientName": null
}
]
}

是与循环项和字典名称item冲突有关的空结果…