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ansible - Ansible 条件检查失败

问题描述

需要 Ansible 帮助解决错误。相同的 ansible 模块/任务在 1 个环境中出错，在另一个环境中完全正常。不知道是什么原因。这是错误：

fatal: [hostname.com]: FAILED! => {
  "msg": "The conditional check ''failed' in prereq.stdout_lines' failed. The error was: error while evaluating conditional ('failed' in prereq.stdout_lines): Unable to look up a name or access an attribute in template string ({% if 'failed' in prereq.stdout_lines %} True {% else %} False {% endif %}).
  Make sure your variable name does not contain invalid characters like '-': argument of type 'StrictUndefined' is not iterable"
}

这是任务片段：

- name: Check for patch conflicts
  shell: ./patch_command {{ patch_directory }}/{{ patchid }}
  environment: "{{ env }}"
  args:
    chdir: "{{ patch_directory }}"
  when: patchid != 'nopatch'
  register: prereq
  failed_when: "'failed' in prereq.stdout_lines"

标签： ansible

解决方案

是否有可能 prereq 变量未定义或在您收到错误的环境中有一个空的 prereq.stdout_lines ？

你可以 - debug: var: prereq 在那个环境中添加一个，然后在这里发布输出吗？

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