Question

我有一个特定的JSON输出，如下所示，它使用在Ansible中的变量内加载的虚拟数据：

 "nodes": {
            "100.29.28.153": {
                "agent": "UP",
                "db": "UP",
                "info": " ",
                "type": "Master",
                "xlog": "6C\\/2400A990",
                "xloginfo": ""
            },
            "100.29.28.154": {
                "agent": "UP",
                "db": "UP",
                "info": " ",
                "type": "Standby",
                "xlog": "6C\\/2400A990",
                "xloginfo": ""
            },
            "100.29.28.155": {
                "agent": "UP",
                "db": "N\\/A",
                "info": " ",
                "type": "Witness"
            },
            "100.29.28.163": {
                "agent": "UP",
                "db": "UP",
                "info": " ",
                "type": "Standby",
                "xlog": "6C\\/2400A990",
                "xloginfo": ""
            },
            "100.29.28.165": {
                "agent": "UP",
                "db": "N\\/A",
                "info": " ",
                "type": "Witness"
            }
        }

我如何在Ansible中对此进行解析，并使用type = Master作为选择该节点IP地址的一种方式注册一个新变量？在上面的示例中，新的Ansible变量应设置为“ 100.29.28.153” ，因为该IP地址是主节点

Answer 1

例如，将dict2items过滤器与JMESPath结合使用：

- set_fact:
    my_var: "{{ nodes | dict2items | json_query('[?value.type==`Master`] | [0].key') }}"

解析json输出以获取Ansible变量中的特定键

1 个答案: