Ansible + Json + 循环解析答案

【问题标题】：Ansible + Json + Loop parsingAnsible + Json + 循环解析
【发布时间】：2019-11-21 18:20:41
【问题描述】：

希望有人能提供帮助。目前卡在这个难题上:)

我正在尝试编写一个查询，允许我获取存储在 sc_item_option_lookup.json.result.item_option_new.display_value 下的数据并将其与 sc_item_option_lookup.json.result.value 结合起来

示例：请求是：8f306117db2fa200701a79fdae9619a8 规格：''

在我跑来解析数据的其他查询中，我似乎没有这么多问题。我不确定是不是因为我使用 with_items 来下拉信息并将其注册到 1 个变量中。

我在这里尝试了各种不同的建议： Using Ansible set_fact to create a dictionary from register results Ansible loop over JSON output from URI Call

我似乎无法根据上述想法让数据看起来正确，并最终遇到未找到变量或我的数组结构不正确的问题。

这里是 ansible 布局：

---
- name: sc_items_options lookup (sc_item_option_lookup)
  uri:
    url: https://{{ instance }}/api/now/table/sc_item_option?sysparm_display_value=true&sysparm_query=sys_id={{ item }}&sysparm_fields=item_option_new,value
    user: "{{ sn_username }}"
    password: "{{ sn_password }}"
    method: GET
    headers:
      "Content-Type": "application/json"
      "Accept": "application/json"
    body_format: json
    return_content: yes
  register: sc_item_option_lookup
  with_items: "{{ sc_item_option_mtom }}" 

- name: 1.1-debug.1 print display value to query (sc_item_option_lookup)
  debug: var=sc_item_option_lookup

- name: 1.2-debug.1 print display value to query (sc_item_option_lookup)
  debug: var=sc_item_option_lookup.results

- name: 1.3-register results (sc_item_option_lookup)
  set_fact:
      sc_item_option: "{{ item.json.result }}"
  with_items:  "{{ sc_item_option_lookup.results }}"

- name: 1.4-debug.1 print display value to query (sc_item_option_lookup)
  debug: var=sc_item_option

- name: 1.5-register results (sc_item_option_lookup)
  set_fact:
      sc_item_option_data: "{{ item }}"
  with_items:  "{{ sc_item_option }}"

- name: 1.6-debug.1 print display value to query (sc_item_option_lookup)
  debug: var=sc_item_option_data


- name: 2-register results (sc_item_option_lookup)
  set_fact:
      sc_item_option_2: "{{ sc_item_option_2 }} + [ '{{ item | map(attribute='item_option_new.display_value') | list }}' ] + [ '{{ item | map(attribute='value') | list }}' ]"
  with_items:  "{{ sc_item_option_lookup.results | map(attribute='content') | map('from_json') | map(attribute='result') | list }}"

- name: 2.1-debug.1 print display value to query (sc_item_option_lookup)
  debug: var=sc_item_option_2

- name: 2.2-debug.1 print display value to query (sc_item_option_lookup)
  debug: 
    var: sc_item_option_2

- name: 3-register results (sc_item_option_lookup)
  set_fact:
      sc_item_option_3: "{{ sc_item_option_3 }} + [ '{{ item | map(attribute='item_option_new.display_value') | list }}' ] + [ '{{ item | map(attribute='value') | list }}' ]"
  loop:  "{{ sc_item_option_lookup.results | map(attribute='content') | map('from_json') | map(attribute='result') | list }}"

- name: 3.1-debug.1 print display value to query (sc_item_option_lookup)
  debug: var=sc_item_option_3

- name: 3.1-debug.1 print display value to query (sc_item_option_lookup)
  debug: 
    var: sc_item_option_3

- name: 4-debug.1 print display value to query (sc_item_option_lookup)
  debug: var=sc_item_option_lookup.results.json.result

在 2.1 上我明白了：

{
    "sc_item_option_2": [
        "[AnsibleUndefined, AnsibleUndefined]",
        "[AnsibleUndefined, AnsibleUndefined]",
        "[AnsibleUndefined, AnsibleUndefined]",
        "[AnsibleUndefined, AnsibleUndefined]"
    ],
    "changed": false,
    "_ansible_verbose_always": true,
    "_ansible_no_log": false
}

在 3.1 上它更接近我想要的。

{
    "changed": false,
    "_ansible_verbose_always": true,
    "sc_item_option_3": "[] + [ '[u'Request is for']' ] + [ '[u'8f306117db2fa200701a79fdae9619a8']' ] + [ '[u'Specs:']' ] + [ '[u'']' ]",
    "_ansible_no_log": false
}

我在 ansible 中看到的 Json 输出：

{
    "changed": false,
    "sc_item_option_lookup": {
        "msg": "All items completed",
        "changed": false,
        "results": [
            {
                "status": 200,
                "cookies": {
                },
                "changed": false,
                "pragma": "no-store,no-cache",
                "set_cookie": "glide_user=; Max-Age=0; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; HttpOnly;Secure, glide_user_session=; Max-Age=0; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; HttpOnly;Secure, glide_user_route=glide.90e24e980d8f8fe786ea244415b54ec6; Max-Age=2147483647; Expires=Tue, 09-Dec-2087 21:03:29 GMT; Path=/; HttpOnly;Secure, glide_session_store=706D840DDB11C050EA6379FDAE96193F; Max-Age=300; Expires=Thu, 21-Nov-2019 17:54:22 GMT; Path=/; HttpOnly;Secure",
                "expires": "0",
                "elapsed": 1,
                "msg": "OK (unknown bytes)",
                "x_transaction_id": "8d6d880ddb11",
                "content_type": "application/json;charset=UTF-8",
                "date": "Thu, 21 Nov 2019 17:49:21 GMT",
                "x_total_count": "1",
                "cookies_string": ,
                "ansible_loop_var": "item",
                "item": "31f5a1d0db51005068c7f9baae9619f3",
                "url": "https://.com/api/now/table/sc_item_option?sysparm_display_value=true&sysparm_query=sys_id=31f5a1d0db51005068c7f9baae9619f3&sysparm_fields=item_option_new,value",
                "transfer_encoding": "chunked",
                "strict_transport_security": "max-age=63072000; includeSubDomains",
                "x_is_logged_in": "true",
                "connection": "close",
                "server": "ServiceNow",
                "content": "{\"result\":[{\"item_option_new\":{\"display_value\":\"Request is for\",\"link\":\"https://.com/api/now/table/item_option_new/6a7b31ecdbb32600701a79fdae961903\"},\"value\":\"8f306117db2fa200701a79fdae9619a8\"}]}",
                "failed": false,
                "json": {
                    "result": [
                        {
                            "item_option_new": {
                                "link": "https://.com/api/now/table/item_option_new/6a7b31ecdbb32600701a79fdae961903",
                                "display_value": "Request is for"
                            },
                            "value": "8f306117db2fa200701a79fdae9619a8"
                        }
                    ]
                },
                "invocation": {
                    "module_args": {
                        "directory_mode": null,
                        "force": false,
                        "remote_src": null,
                        "status_code": [
                            200
                        ],
                        "follow": false,
                        "owner": null,
                        "body_format": "json",
                        "client_key": null,
                        "group": null,
                        "use_proxy": true,
                        "unix_socket": null,
                        "unsafe_writes": null,
                        "setype": null,
                        "content": null,
                        "serole": null,
                        "follow_redirects": "safe",
                        "return_content": true,
                        "client_cert": null,
                        "body": null,
                        "timeout": 30,
                        "src": null,
                        "dest": null,
                        "selevel": null,
                        "force_basic_auth": false,
                        "removes": null,
                        "http_agent": "ansible-httpget",
                        "regexp": null,
                        "password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER",
                        "url_password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER",
                        "url": "https://.com/api/now/table/sc_item_option?sysparm_display_value=true&sysparm_query=sys_id=31f5a1d0db51005068c7f9baae9619f3&sysparm_fields=item_option_new,value",
                        "validate_certs": true,
                        "seuser": null,
                        "method": "GET",
                        "creates": null,
                        "headers": {
                            "Content-Type": "application/json",
                            "Accept": "application/json"
                        },
                        "delimiter": null,
                        "mode": null,
                        "attributes": null,
                        "backup": null
                    }
                },
                "redirected": false,
                "cache_control": "no-cache,no-store,must-revalidate,max-age=-1"
            },
            {
                "status": 200,
                "cookies": {
                },
                "changed": false,
                "pragma": "no-store,no-cache",
                "set_cookie": "glide_user=; Max-Age=0; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; HttpOnly;Secure, glide_user_session=; Max-Age=0; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; HttpOnly;Secure, glide_user_route=glide.4c248572c7f7726ac64e64548c99cafd; Max-Age=2147483647; Expires=Tue, 09-Dec-2087 21:03:33 GMT; Path=/; HttpOnly;Secure, glide_session_store=7D6D888DDBDD805068C7F9BAAE96197E; Max-Age=300; Expires=Thu, 21-Nov-2019 17:54:26 GMT; Path=/; HttpOnly;Secure",
                "expires": "0",
                "elapsed": 1,
                "msg": "OK (unknown bytes)",
                "x_transaction_id": "7d6d888ddbdd",
                "content_type": "application/json;charset=UTF-8",
                "date": "Thu, 21 Nov 2019 17:49:26 GMT",
                "x_total_count": "1",
                "cookies_string": ,
                "ansible_loop_var": "item",
                "item": "7df56510db91005068c7f9baae961957",
                "url": "https://.com/api/now/table/sc_item_option?sysparm_display_value=true&sysparm_query=sys_id=7df56510db91005068c7f9baae961957&sysparm_fields=item_option_new,value",
                "transfer_encoding": "chunked",
                "strict_transport_security": "max-age=63072000; includeSubDomains",
                "x_is_logged_in": "true",
                "connection": "close",
                "server": "ServiceNow",
                "content": "{\"result\":[{\"item_option_new\":{\"display_value\":\"Specs:\",\"link\":\"https://.com/api/now/table/item_option_new/0e508f4adb8b9b00ec2ff3671d9619fc\"},\"value\":\"\"}]}",
                "failed": false,
                "json": {
                    "result": [
                        {
                            "item_option_new": {
                                "link": "https://.com/api/now/table/item_option_new/0e508f4adb8b9b00ec2ff3671d9619fc",
                                "display_value": "Specs:"
                            },
                            "value": ""
                        }
                    ]
                },
                "invocation": {
                    "module_args": {
                        "directory_mode": null,
                        "force": false,
                        "remote_src": null,
                        "status_code": [
                            200
                        ],
                        "follow": false,
                        "owner": null,
                        "body_format": "json",
                        "client_key": null,
                        "group": null,
                        "use_proxy": true,
                        "unix_socket": null,
                        "unsafe_writes": null,
                        "setype": null,
                        "content": null,
                        "serole": null,
                        "follow_redirects": "safe",
                        "return_content": true,
                        "client_cert": null,
                        "body": null,
                        "timeout": 30,
                        "src": null,
                        "dest": null,
                        "selevel": null,
                        "force_basic_auth": false,
                        "removes": null,
                        "http_agent": "ansible-httpget",
                        "user": ,
                        "regexp": null,
                        "password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER",
                        "url_password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER",
                        "url": "https://.com/api/now/table/sc_item_option?sysparm_display_value=true&sysparm_query=sys_id=7df56510db91005068c7f9baae961957&sysparm_fields=item_option_new,value",
                        "validate_certs": true,
                        "seuser": null,
                        "method": "GET",
                        "creates": null,
                        "headers": {
                            "Content-Type": "application/json",
                            "Accept": "application/json"
                        },
                        "delimiter": null,
                        "mode": null,
                        "attributes": null,
                        "backup": null
                    }
                },
                "redirected": false,
                "cache_control": "no-cache,no-store,must-revalidate,max-age=-1"
            }
        ]
    },
    "_ansible_verbose_always": true,
    "_ansible_no_log": false
}

【问题讨论】：

标签： json loops ansible

【解决方案1】：

我不完全确定我了解您要查找的内容，但以下任务：

    - debug:
        msg: >-
          {{ item.json.result.0.item_option_new.display_value }}
          {{ item.json.result.0.value }}
      loop: "{{ sc_item_option_lookup.results }}"
      loop_control:
        label: "{{ item.x_transaction_id }}"

会给你：

TASK [debug] *************************************************************************
ok: [localhost] => (item=8d6d880ddb11) => {
    "msg": "Request is for 8f306117db2fa200701a79fdae9619a8"
}
ok: [localhost] => (item=7d6d888ddbdd) => {
    "msg": "Specs: "
}

...我认为这与您在问题的第一部分中所描述的相符。

如果你想把它存储在一个列表变量中，那么你可以这样写：

    - set_fact:
        sc_item_option_3: >-
          {{ sc_item_option_3|default([]) +
          [ "{}{}".format(
          item.json.result.0.item_option_new.display_value,
          item.json.result.0.value
          )]}}
      loop: "{{ sc_item_option_lookup.results }}"
      loop_control:
        label: "{{ item.x_transaction_id }}"

    - debug:
        var: sc_item_option_3

这让你：

TASK [set_fact] **********************************************************************
ok: [localhost] => (item=8d6d880ddb11)
ok: [localhost] => (item=7d6d888ddbdd)

TASK [debug] *************************************************************************
ok: [localhost] => {
    "sc_item_option_3": [
        "Request is for8f306117db2fa200701a79fdae9619a8",
        "Specs:"
    ]
}

注意事项：

我在这里设置loop_control.label只是为了减少每次循环迭代期间的输出量；你可以放弃它，它不会对结果产生任何影响。
如果您以前没有见过 >- 运算符，那只是一个 YAML 引用运算符，您可以在 Ansible 的 YAML Basics 教程中阅读。

【讨论】：

...json.result 是一个列表。所以你需要选择一个特定的项目。在这种情况下，列表只有一项，列表中第一项的索引为0。
感谢您的信息！这正是我想不通的。根据 json 文件，您是如何找到 .0 的？最后，我试图创建创建变量，例如 when item_option_new.display_value = "Request is for" set_fact: Request: item.value，我认为我有完成此操作所需的信息。还要感谢 loop_control 和 >-. 提供的其他信息
很高兴为您提供帮助。如果这回答了您的问题，请考虑通过选择答案左侧的复选标记将此答案标记为“已接受”。谢谢！