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Ansible shell模块无法识别失败任务的“failed”属性

ansible

Akif · 技术社区 · 8 年前

以下代码结果 'dict object' has no attribute 'failed'

- hosts: localhost
  tasks:
    - shell: "not_available_command"
      register: module_result
      until: module_result.failed == false
      retries: 2
      delay: 1

结果:

fatal: [localhost]: FAILED! => {
"failed": true, 
"msg": "The conditional check 'module_result.failed == false' failed. The error was: error while evaluating conditional (module_result.failed == false): 'dict object' has no attribute 'failed'"

}

但是当我改变了 until 作为:

      until: module_result.stderr == ""

它成功重试。我用 -vvv

fatal: [localhost]: FAILED! => {
"attempts": 2, 
"changed": true, 
"cmd": "not_available_command", 
"delta": "0:00:00.010290", 
"end": "2017-09-25 17:28:14.078318", 
"failed": true, 
"invocation": {
    "module_args": {
        "_raw_params": "not_available_command", 
        "_uses_shell": true, 
        "chdir": null, 
        "creates": null, 
        "executable": null, 
        "removes": null, 
        "warn": true
    }
}, 
"rc": 127, 
"start": "2017-09-25 17:28:14.068028", 
"stderr": "/bin/sh: 1: not_available_command: not found", 
"stderr_lines": [
    "/bin/sh: 1: not_available_command: not found"
], 
"stdout": "", 
"stdout_lines": []

}

failed 或 stderr 失败 尝试定义时无法识别 直到 语法。

get\u url模块:

- hosts: localhost
  tasks:
    - get_url:
        url: "http://unavailable_file_on_the_web.txt"
        dest: "{{ playbook_dir }}"
      register: module_result
      until: module_result.failed == false
      retries: 2
      delay: 1

这一次 until: module_result.failed == false 语法工程; 'failed' 属性已识别。

那么,如何在模块上识别这个问题呢?这似乎是一个错误吗?

1 回复 | 直到 8 年前

Konstantin Suvorov 8 年前

是的,这看起来像是一个bug或不符合预期的行为: failed 在中间尝试期间不填充字段。你可以用 ANSIBLE_DEBUG=1 :

{
  "changed": true,
  "end": "2017-09-25 13:01:17.269225",
  "stdout": "",
  "cmd": "not_available_command",
  "rc": 127,
  "start": "2017-09-25 13:01:17.257604",
  "stderr": "/bin/sh: not_available_command: command not found",
  "delta": "0:00:00.011621",
  "invocation": {
    "module_args": {
      "warn": true,
      "executable": null,
      "_uses_shell": true,
      "_raw_params": "not_available_command",
      "removes": null,
      "creates": null,
      "chdir": null
    }
  },
  "warnings": []
}

在表2.4中字段存在。

供您参考 task result tests 失败 succeeded
你可以在你的 when/until