Ansible解析json并将结果读入不同的变量

时间:2018-05-09 15:31:00

标签: json parsing ansible

我已经设置了一个查询github api元端点并返回以下内容的任务

{
  "verifiable_password_authentication": true,
  "github_services_sha": "f9e3a6b98d76d9964a6613d581164039b8d54d89",
  "hooks": [
    "192.30.252.0/22",
    "185.199.108.0/22",
    "140.82.112.0/20"
  ],
  "git": [
    "192.30.252.0/22",
    "185.199.108.0/22",
    "140.82.112.0/20",
    "13.229.188.59/32",
    "13.250.177.223/32",
    "18.194.104.89/32",
    "18.195.85.27/32",
    "35.159.8.160/32",
    "52.74.223.119/32"
  ],
  "pages": [
    "192.30.252.153/32",
    "192.30.252.154/32",
    "185.199.108.153/32",
    "185.199.109.153/32",
    "185.199.110.153/32",
    "185.199.111.153/32"
  ],
  "importer": [
    "54.87.5.173",
    "54.166.52.62",
    "23.20.92.3"
  ]
}

我需要做的是获取3个挂钩IP并将它们分别读入自己的变量。

我已经尝试了一些我已经找到的解决方案,但似乎对我没有任何帮助。

我已经深入了解json所以我只返回了3个IP,但是如何将它们分别输出并变成变量?

3 个答案:

答案 0 :(得分:1)

我在变量名称部分使用j2语法给了它一个镜头,并且 - TIL - 看起来在该部分中也允许使用jinja2语法!

请参阅playbook以处理hooks列表变量并分配给变量variable_1variable_2variable_3等等:

- hosts: localhost
  gather_facts: false
  vars:
    counter: 1
    hooks:
    - 192.30.252.0/22
    - 185.199.108.0/22
    - 140.82.112.0/20

  tasks:
    - name: populate vars
      set_fact:
        variable_{{counter}}: "{{ item }}"
        counter: "{{ counter | int + 1 }}"
      with_items:
        - "{{ hooks }}"

    - name: print vars
      debug:
        msg: "variable_1: {{variable_1}}, variable_2: {{variable_2}}, variable_3: {{variable_3}}"

和输出:

[root@optima-ansible ILIAS]# ansible-playbook 50257063.yml 

PLAY [localhost] ***********************************************************************************************************************************************************************************************************************

TASK [populate vars] *******************************************************************************************************************************************************************************************************************
ok: [localhost] => (item=192.30.252.0/22)
ok: [localhost] => (item=185.199.108.0/22)
ok: [localhost] => (item=140.82.112.0/20)

TASK [print vars] **********************************************************************************************************************************************************************************************************************
ok: [localhost] => {
    "msg": "variable_1: 192.30.252.0/22, variable_2: 185.199.108.0/22, variable_3: 140.82.112.0/20"
}

PLAY RECAP *****************************************************************************************************************************************************************************************************************************
localhost                  : ok=2    changed=0    unreachable=0    failed=0   

[root@optima-ansible ILIAS]# 

希望有所帮助

<强>更新

我注意到的一些奇怪的东西 - 也是TIL - 如果你颠倒了这些线:

variable_{{counter}}: "{{ item }}"
counter: "{{ counter | int + 1 }}"

为:

counter: "{{ counter | int + 1 }}"
variable_{{counter}}: "{{ item }}"

你仍然得到相同的变量名,_1到_3,而我希望得到_2到_4。

我认为ansible循环的行为与其他编程语言的预期不同。

答案 1 :(得分:1)

---

- name: Query Github Meta API and get Hook Ips
  hosts: local
  connection: local
  vars:
    counter: 1
  tasks:

    - name: Query API
      uri:
        url: https://api.github.com/meta
        return_content: yes
      register: response

    - name: Populate Hook Variables
      set_fact:
        webhook_ip_{{counter}}: "{{ item }}"
        counter: "{{ counter | int + 1 }}"
      with_items:
        - "{{ response['json']['hooks'] }}"

    - name: print vars
      debug:
        msg: "Variable_1: {{ webhook_ip_1 }}, Variable_2: {{ webhook_ip_2 }}, Variable_3: {{ webhook_ip_3 }}"

答案 2 :(得分:0)

循环使用GitHub Webhook IPs

- name: get request to github
  uri:
    url: "https://api.github.com/meta"
    method: GET
    return_content: yes
    status_code: 200
    headers:
      Content-Type: "application/json"
      #X-Auth-Token: "0010101010"
    body_format: json
  register: json_response

- name:  GitHub webhook IPs
  debug:
    msg: "{{ item }}"
  with_items: "{{ (json_response.content | from_json).hooks }}"