Ansible fetching Stdout key value

Question

我需要一些有关如何使用Ansible获取特定值的帮助

我的任务：

- name: 'check Describe Information'
  debug: 
  var: describeresult.stdout

我需要从stdout下面获取IP地址值，应该在debug var中放入什么以获取IP地址

TASK [check Describe Information] **********************************************
task path: /home/tom/Getipaddress.yml:28
ok: [127.0.0.1] => {
    "describeresult.stdout": {
        "failures": [], 
        "tasks": [
            {
                "attachments": [
                    {
                        "details": [
                            {
                                "name": "subnetId", 
                                "value": "subnet-xxxxxxxxxxxxxx"
                            }, 
                            {
                                "name": "networkInterfaceId", 
                                "value": "eni-xxxxxxxxxxxxxxxx"
                            }, 
                            {
                                "name": "macAddress", 
                                "value": "xxxxxxxxxxxxxxxxxx"
                            }, 
                            {
                                "name": "privateIPv4Address", 
                                "value": "xxxxxxxxxxxxxxxxxx"
                            }

此外，我正在使用AWS ECS命令以--output作为JSON生成上述输出，不确定如何使用--query仅过滤或获取以上IP地址

Answer 1

使用json_query。例如

    - set_fact:
        my_privateIPv4Address: "{{ describeresult.stdout.tasks|
                                   json_query(query) }}"
      vars:
        query: "[].attachments[].details[?name=='privateIPv4Address'].value"

[json_query默认返回列表。