ansible json 过滤器列表 [英] ansible json filter list
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问题描述
我正在尝试从 scan_services 模块(或 >= 2.5 中的 service_facts)的输出中过滤掉正在运行的服务.这个模块的输出是这样的:
I'm trying to filter out running services from the output of scan_services module (or service_facts in >= 2.5). The output of this module is something like this:
"ansible_facts": {
"services": {
"NetworkManager-dispatcher.service": {
"name": "NetworkManager-dispatcher.service",
"source": "systemd",
"state": "running"
},
"NetworkManager-wait-online.service": {
"name": "NetworkManager-wait-online.service",
"source": "systemd",
"state": "stopped"
},
"NetworkManager.service": {
"name": "NetworkManager.service",
"source": "systemd",
"state": "running"
},
现在,我要做的是仅列出状态为:正在运行...这段代码似乎根本不起作用:/
Now, what I'm trying to do is to list only the service names of the ones that are state: running... This code doesn't seems to work at all :/
---
- hosts: all
tasks:
- name : Scan current services status
scan_services:
register: running_services
- name: print
debug: var=item
with_items: "{{ running_services.|json_query('ansible_facts.services.[?state=='running'].name')}}"
...但我想我在附近.我想这个 json_query 中缺少一些东西:(
...but I think I'm somewhere near. I guess something is missing in this json_query :(
推荐答案
返回带有正在运行的服务名称的列表的 jmespath 表达式是这样的:
The jmespath expression returning a list with the name of running services is this :
ansible_facts.services.* | [?state == `running`].name
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