Ansible 动态清单脚本未得到评估答案

【问题标题】：Ansible dynamic inventory script does not get evaluatedAnsible 动态清单脚本未得到评估
【发布时间】：2022-11-10 03:05:39
【问题描述】：

我有一个自定义 python 脚本，可以生成与 Ansible 兼容的清单：

...

if __name__ == "__main__":
    with open("main.log", "a") as f:
        f.write(f"{sys.argv}\n")

    arg_parser = argparse.ArgumentParser(description=__doc__, prog=__file__)
...

当我手动运行它时，一切都很好：

python scripts/main.py --list

main.log 文件附加了一个新行：

['scripts/main.py', '--list']

我的ansible.cfg 启用了脚本插件：

[inventory]
enable_plugins = script

但是，当我尝试将脚本与 ansible-inventory 一起使用时，它失败了：

ansible-inventory -i scripts/main.py --list -vvvv
ansible-inventory [core 2.13.2]
  config file = /Users/jaep/code/ic/pocs/poc_ansible_dynamic_inventory/ansible.cfg
  configured module search path = ['/Users/jaep/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /opt/homebrew/Cellar/ansible/6.2.0/libexec/lib/python3.10/site-packages/ansible
  ansible collection location = /Users/jaep/.ansible/collections:/usr/share/ansible/collections
  executable location = /opt/homebrew/bin/ansible-inventory
  python version = 3.10.6 (main, Aug 11 2022, 13:36:31) [Clang 13.1.6 (clang-1316.0.21.2.5)]
  jinja version = 3.1.2
  libyaml = True
Using /Users/jaep/code/ic/pocs/poc_ansible_dynamic_inventory/ansible.cfg as config file
setting up inventory plugins
script declined parsing /Users/jaep/code/ic/pocs/poc_ansible_dynamic_inventory/scripts/main.py as it did not pass its verify_file() method
[WARNING]: Unable to parse
/Users/jaep/code/ic/pocs/poc_ansible_dynamic_inventory/scripts/main.py as an inventory source
[WARNING]: No inventory was parsed, only implicit localhost is available
{
    "_meta": {
        "hostvars": {}
    },
    "all": {
        "children": [
            "ungrouped"
        ]
    }
}

真正令人惊讶的是脚本没有被 ansible-inventory 调用，因为 main.log 仍然是空的。

【问题讨论】：

Ansible checks the shebang，所以确保你有一个，并且它是 ansible 的愿望，或者（当然）确保文件是可执行的
@mdaniel 请将此添加为答案。我会接受的。

标签： python ansible ansible-inventory

【解决方案1】：

我只是忘了把正确的 shebang 放在脚本的顶部：

#!/usr/bin/env python3

并授予脚本执行权限：

chmod +x scripts/main.py

【讨论】：