如何从组中的所有主机中提取多个主机变量？

Question

Serhiy Bobrov

Asked: 2024-12-10 19:15:48 +0800 CST2024-12-10 19:15:48 +0800 CST 2024-12-10 19:15:48 +0800 CST

在 ansible playbook 中使用已注册的输出字段作为变量

772

请告知如何将一个任务的注册数据用作同一剧本中另一个任务的变量。

剧本：

---
- name: RouterOS test with API
  hosts: localhost
  vars:
    hostname: "some_host"
    username: "api"
    password: "some_password"
    gather_subset: all
  module_defaults:
    group/community.routeros.api:
      hostname: "{{ hostname }}"
      password: "{{ password }}"
      username: "{{ username }}"
      tls: true
      force_no_cert: false
      validate_certs: false
      validate_cert_hostname: false
  tasks:

  - name: Add wg tuns
    ignore_errors: true
    community.routeros.api:
      path: "interface wireguard"
      add: "name={{ item.name }} listen-port={{ item.port }} comment={{ item.comment }}"
    loop:
      - { name: 'wg1', port: '111', comment: 'com1' }
      - { name: 'wg2', port: '222', comment: 'com2' }
      - { name: 'wg3', port: '333', comment: 'com3' }

  - name: Get wg link-local addrs
    community.routeros.api:
      path: ipv6 address
      extended_query:
        attributes:
          - address
          - interface
        where:
          - attribute: "interface"
            is: "=="
            value: "{{ item.name }}"
    loop:
      - { name: 'wg1' }
      - { name: 'wg2' }
      - { name: 'wg3' }
    register: extended_queryout

  - name: Dump "Extended query example" output
    ansible.builtin.debug:
      msg: '{{ extended_queryout }}'

Playbook 正在创建 3 个（通过循环）Wireguard 接口，我需要使用这些接口的本地链接地址作为变量，如wg1.address、wg2.address、wg3.address。现在我只能看到使用以下命令生成的大量输出：

  - name: Dump "Extended query example" output
    ansible.builtin.debug:
      msg: '{{ extended_queryout }}'

像这样：

TASK [Dump "Extended query example" output] ****************************************************************************************************************************************************************
ok: [localhost] => {
    "msg": {
        "changed": false,
        "msg": "All items completed",
        "results": [
            {
                "ansible_loop_var": "item",
                "changed": false,
                "failed": false,
                "invocation": {
                    "module_args": {
                        "add": null,
                        "ca_path": null,
                        "cmd": null,
                        "encoding": "ASCII",
                        "extended_query": {
                            "attributes": [
                                "address",
                                "interface"
                            ],
                            "where": [
                                {
                                    "attribute": "interface",
                                    "is": "==",
                                    "or": null,
                                    "value": "wg1"
                                }
                            ]
                        },
                        "force_no_cert": false,
                        "hostname": "some_host",
                        "password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER",
                        "path": "ipv6 address",
                        "port": null,
                        "query": null,
                        "remove": null,
                        "timeout": 10,
                        "tls": true,
                        "update": null,
                        "username": "api",
                        "validate_cert_hostname": false,
                        "validate_certs": false
                    }
                },
                "item": {
                    "name": "wg1"
                },
                "msg": [
                    {
                        "address": "fe80::caa4:e31c:dd63:7598/64",
                        "interface": "wg1"
                    }
                ]
            },
            {
                "ansible_loop_var": "item",
                "changed": false,
                "failed": false,
                "invocation": {
                    "module_args": {
                        "add": null,
                        "ca_path": null,
                        "cmd": null,
                        "encoding": "ASCII",
                        "extended_query": {
                            "attributes": [
                                "address",
                                "interface"
                            ],
                            "where": [
                                {
                                    "attribute": "interface",
                                    "is": "==",
                                    "or": null,
                                    "value": "wg2"
                                }
                            ]
                        },
                        "force_no_cert": false,
                        "hostname": "some_host",
                        "password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER",
                        "path": "ipv6 address",
                        "port": null,
                        "query": null,
                        "remove": null,
                        "timeout": 10,
                        "tls": true,
                        "update": null,
                        "username": "api",
                        "validate_cert_hostname": false,
                        "validate_certs": false
                    }
                },
                "item": {
                    "name": "wg2"
                },
                "msg": [
                    {
                        "address": "fe80::c0eb:fadb:2da0:50f5/64",
                        "interface": "wg2"
                    }
                ]
            },
            {
                "ansible_loop_var": "item",
                "changed": false,
                "failed": false,
                "invocation": {
                    "module_args": {
                        "add": null,
                        "ca_path": null,
                        "cmd": null,
                        "encoding": "ASCII",
                        "extended_query": {
                            "attributes": [
                                "address",
                                "interface"
                            ],
                            "where": [
                                {
                                    "attribute": "interface",
                                    "is": "==",
                                    "or": null,
                                    "value": "wg3"
                                }
                            ]
                        },
                        "force_no_cert": false,
                        "hostname": "some_host",
                        "password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER",
                        "path": "ipv6 address",
                        "port": null,
                        "query": null,
                        "remove": null,
                        "timeout": 10,
                        "tls": true,
                        "update": null,
                        "username": "api",
                        "validate_cert_hostname": false,
                        "validate_certs": false
                    }
                },
                "item": {
                    "name": "wg3"
                },
                "msg": [
                    {
                        "address": "fe80::28d1:7b9b:92:ed43/64",
                        "interface": "wg3"
                    }
                ]
            }
        ],
        "skipped": false
    }
}

如何设置变量 wg1.address 值 fe80::caa4:e31c:dd63:7598/64、变量 wg2.address 值 fe80::c0eb:fadb:2da0:50f5/64 和 wg3.address 值 fe80::28d1:7b9b:92:ed43/64。

先感谢您。

期望看到变量 wg1.address 值 fe80::caa4:e31c:dd63:7598/64、变量 wg2.address 值 fe80::c0eb:fadb:2da0:50f5/64 和 wg3.address 值 fe80::28d1:7b9b:92:ed43/64。

2 个回答

Voted

Vladimir Botka · Answer 1 · 2024-12-10T22:33:02+08:00

映射属性msg

  ifc_addr: "{{ extended_queryout.results |
                map(attribute='msg') |
                flatten }}"

获取列表

  ifc_addr:
  - address: fe80::caa4:e31c:dd63:7598/64
    interface: wg1
  - address: fe80::c0eb:fadb:2da0:50f5/64
    interface: wg2
  - address: fe80::28d1:7b9b:92:ed43/64
    interface: wg3

您可以选择属性并映射您想要的内容，也可以将列表转换为字典

  ifc_addr_dict: "{{ ifc_addr |
                     items2dict(key_name='interface',
                                value_name='address') }}"

给出简单的字典

  ifc_addr_dict:
    wg1: fe80::caa4:e31c:dd63:7598/64
    wg2: fe80::c0eb:fadb:2da0:50f5/64
    wg3: fe80::28d1:7b9b:92:ed43/64

^{完整测试剧本的示例
- hosts: localhost

vars_files: extended_queryout.yml

vars:

ifc_addr: "{{ extended_queryout.results |
map(attribute='msg') |
flatten }}"

ifc_addr_dict: "{{ ifc_addr |
items2dict(key_name='interface',
value_name='address') }}"

tasks:

- debug:
var: extended_queryout

- debug:
var: ifc_addr

- debug:
var: ifc_addr_dict}

hek2mgl · Answer 2 · 2024-12-10T19:51:07+08:00

Best Answer

hek2mgl

2024-12-10T19:51:07+08:002024-12-10T19:51:07+08:00

您可以像这样访问每个接口的 mac 地址：

- name: Print mac address of iface wg1
  ansible.builtin.debug:
    msg: "{{ extended_queryout.results|json_query('[0].msg[0].address') }}"
                                        # see: -----^ 

- name: Print mac address of iface wg2
  ansible.builtin.debug:
    msg: "{{ extended_queryout.results|json_query('[1].msg[0].address') }}"
                                        # see: -----^

要将值存储在事实中，请使用以下set_fact模块：

- name: Store the mac addresses as facts
  ansible.builtin.set_fact:
    wg1:
      address: "{{ extended_queryout.results|json_query('[0].msg[0].address') }}"
    wg2:
      address: "{{ extended_queryout.results|json_query('[1].msg[0].address') }}"
    wg3:
      address: "{{ extended_queryout.results|json_query('[2].msg[0].address') }}"

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在 ansible playbook 中使用已注册的输出字段作为变量

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