从json输出中提取变量，然后调试并使用ansible注册outout [英] extracting a variable from json output then debug and register the outout with ansible

问题描述

我有一个问题，是在进行curl解析并重新注册回ansible后，要从json输出中提取出其中一个变量

Hi I have a problem of getting one of the variables extracted from a json output after doing a curl to be parsed and registered back to ansible

剧本:

- name: debug stdout
  debug: 
    msg: "{{ result.stdout | from_json }}"
  register: dataresult

- name: debug fact
  debug:
    msg: "{{ dataresult.data.start_time_string }}"

输出:

TASK [backup_api : debug stdout] 
***********************************************
task path: /home/ansible/cm-dha/roles/backup_api/tasks/main.yml:36
ok: [127.0.0.1] => {
   "msg": {
       "data": [
           {
            "backup_id": 40362,
            "certified": null,
            "instance_id": 148,
            "start_time": 1506985211,
            "start_time_string": "10/03/2017 03:00:11 am"
           }
       ],
      "timestamp": 1507022232
   }

}

错误:

致命:[127.0.0.1]:失败！ => { 失败":是的， "msg":字段'args'的值无效，该值似乎包含未定义的变量.错误是:'dict object'没有属性'data'\ n \ n错误似乎出在'/home/ansible/cm-dha/roles/backup_api/tasks/main.yml':第48行第5列，但根据确切的语法问题，\ n可能不在文件的其他位置.\ n \ n出现问题的行可能是:\ n \ n \ n-名称:调试事实\ n ^这里\ n"

fatal: [127.0.0.1]: FAILED! => { "failed": true, "msg": "the field 'args' has an invalid value, which appears to include a variable that is undefined. The error was: 'dict object' has no attribute 'data'\n\nThe error appears to have been in '/home/ansible/cm-dha/roles/backup_api/tasks/main.yml': line 48, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n - name: debug fact\n ^ here\n"

尝试提取值start_time_string时发生错误

The error is happening when trying to extract the value start_time_string

所以可能发生的原因是我尝试了很多事情，例如使用with_items，with_dict，模拟data []输出进行调试，甚至进行json查询，但都没有成功

so how to do it probably as I tried too many things like using with_items, with_dict , simulating the data[] output to debug and even doing a json query but without success

这里有什么帮助吗?

推荐答案

请勿使用debug分配事实，而应使用set_fact:

Don't use debug to assign facts, use set_fact instead:

- name: debug stdout
  set_fact: 
    dataresult: "{{ result.stdout | from_json }}"

- name: debug fact
  debug:
    msg: "{{ dataresult.data[0].start_time_string }}"

这篇关于从json输出中提取变量，然后调试并使用ansible注册outout的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！