Ansible:如何存储json_query的结果? [英] Ansible: how to store the result of a json_query?

问题描述

在过滤器上的Ansible文档中，显示了以下示例，该示例在数据结构上执行JSON查询，选择某些字段name和port:

In the Ansible documentation on filters, the following example is shown, which executes a JSON query on a data structure, selecting certain fields name and port:

- name: "Display all server ports and names from cluster1"
  debug: var=item
  with_items: "{{domain_definition|json_query(server_query)}}"
  vars:
    server_query: "domain.server[?cluster=='cluster2'].{name: name, port: port}"

我设法使用此逻辑来解析REST服务的JSON响应，但我不仅希望打印出结果，而且在我的剧本中再次重复使用几次.

I managed to use this logic to parse the JSON response of a REST service, but I would like to not only print out the result, but reuse it several times again during my playbook.

如何持久保存上述变量var以便以后使用?

How is it possible to persist the above variable var for later use?

推荐答案

只需将debug调用替换为set_fact.例如:

Just replace debug call with set_fact. For example:

- name: "Display all server ports and names from cluster1"
  set_fact:
    'name_{{ item.name }}': '{{ item.port }}'
  with_items: "{{domain_definition|json_query(server_query)}}"
  vars:
    server_query: "domain.server[?cluster=='cluster2'].{name: name, port: port}"

这将生成两个持久性事实(基于文档数据):值为9080的name_server21和name_server22 = 9090.

This will generate two persistent facts (based on docs data): name_server21 with value 9080 and name_server22 = 9090.

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