如何从 Ansible 中设置模块的输出中获取列表的第一个元素?
How to get the first element of a list from the output of setup module in Ansible?
我从设置模块收到了以下数据:
"ansible_nodename": "3d734bc2a391",
"ansible_os_family": "RedHat",
"ansible_pkg_mgr": "yum",
"ansible_processor": [
"AuthenticAMD",
"AMD PRO A10-8700B R6, 10 Compute Cores 4C+6G"
],
"ansible_processor_cores": 1,
"ansible_processor_count": 1,
"ansible_processor_threads_per_core": 1,
我想检索 ansible_processor
的第一个值并在 Jinja2 模板中使用它。
如果我使用 {{ ansible_processor }}
,它会给我两个值:
"AuthenticAMD",
"AMD PRO A10-8700B R6, 10 Compute Cores 4C+6G"
但我只想要第一个
获取列表的第一项:
- debug:
msg: "First item: {{ ansible_processor[0] }}"
或者:
- debug:
msg: "First item: {{ ansible_processor | first }}"
试试这个常见的处理这种情况:
参考:
# from list
- debug:
msg: "First item: {{ ansible_processor[0] }}"
# from output, like 'https://xxx.xx/xxx/xxx.git'
- debug:
msg: "git repo's name: {{ (item| urlsplit('path')| basename | splitext)[0] }}"
我从设置模块收到了以下数据:
"ansible_nodename": "3d734bc2a391",
"ansible_os_family": "RedHat",
"ansible_pkg_mgr": "yum",
"ansible_processor": [
"AuthenticAMD",
"AMD PRO A10-8700B R6, 10 Compute Cores 4C+6G"
],
"ansible_processor_cores": 1,
"ansible_processor_count": 1,
"ansible_processor_threads_per_core": 1,
我想检索 ansible_processor
的第一个值并在 Jinja2 模板中使用它。
如果我使用 {{ ansible_processor }}
,它会给我两个值:
"AuthenticAMD",
"AMD PRO A10-8700B R6, 10 Compute Cores 4C+6G"
但我只想要第一个
获取列表的第一项:
- debug:
msg: "First item: {{ ansible_processor[0] }}"
或者:
- debug:
msg: "First item: {{ ansible_processor | first }}"
试试这个常见的处理这种情况:
参考:
# from list
- debug:
msg: "First item: {{ ansible_processor[0] }}"
# from output, like 'https://xxx.xx/xxx/xxx.git'
- debug:
msg: "git repo's name: {{ (item| urlsplit('path')| basename | splitext)[0] }}"