为什么这个ansible-lineinfle命令用于检查/etc/sudoers中的行失败，而一个非常类似的行成功了？

我正在写一本关于覆盆子圆周率的剧本。本手册包括两项任务，用于检查

/etc/sudoers

中是否存在一条线，其中一条线始终通过，而另一条线始终失败。我似乎找不出原因；这两个任务的语法完全相同，而且两行肯定都在

/etc/sudoers

文件中。我已经在下面包含了相关代码，任何输入都将不胜感激

/etc/sudoers

：

# /etc/sudoers
#
# This file MUST be edited with the 'visudo' command as root.
#
# See the man page for details on how to write a sudoers file.
#

Defaults        env_reset

# Host alias specification

# User alias specification

# Cmnd alias specification
Cmnd_Alias      SHUTDOWN = /sbin/shutdown, /sbin/reboot, /sbin/halt, /usr/bin/passwd
Cmnd_Alias      PERMISSIONS = /bin/chmod, /bin/chown
# User privilege specification
root    ALL=(ALL) ALL
pi      ALL=(ALL) NOPASSWD: ALL
debian-transmission     ALL=(ALL) NOPASSWD: PERMISSIONS
Defaults env_keep += "RPI_UPDATE_UNSUPPORTED"
# Allow members of group sudo to execute any command
# (Note that later entries override this, so you might need to move
# it further down)
%sudo ALL=(ALL) ALL
#
#includedir /etc/sudoers.d

剧本任务中的相关片段：

- name: set pi permissions in /etc/sudoers                                      
  lineinfile: "dest=/etc/sudoers                                                
              state=present                                                     
              line='pi      ALL=(ALL) NOPASSWD: ALL'                            
              validate='visudo -cf %s'"                                         

- name: set debian-transmission permissions in /etc/sudoers                     
  lineinfile: "dest=/etc/sudoers                                                
              state=present                                                     
              line='debian-transmission     ALL=(ALL) NOPASSWD: PERMISSIONS'    
              validate='visudo -cf %s'"                                         

（我知道第一个任务是不必要的，因为这是系统默认的，但我添加了它，同时试图找出为什么另一个任务不工作，只是为了证明一点。）

下面是我运行playbook时的输出：

TASK: [kodi | start transmission-daemon again once settings.json has been copied] *** 
changed: [kodi]

TASK: [kodi | set pi permissions in /etc/sudoers] ***************************** 
ok: [kodi]

TASK: [kodi | set debian-transmission permissions in /etc/sudoers] ************ 
failed: [kodi] => {"cmd": "visudo -cf /tmp/tmpZNRBC3", "failed": true, "rc": 2}
msg: [Errno 2] No such file or directory

FATAL: all hosts have already failed -- aborting

---

我认为您可能正在经历中描述的情况

用

visudo

的完整路径替换

validate

中的

visudo

，它应该可以工作

- name: set debian-transmission permissions in /etc/sudoers                     
  lineinfile: "dest=/etc/sudoers                                                
              state=present                                                     
              line='debian-transmission     ALL=(ALL) NOPASSWD: PERMISSIONS'    
              validate='/usr/sbin/visudo -cf %s'"

---

您的第一个任务（使用

pi

用户权限）有效，因为所需的行已经在文件中，并且不需要使用

visudo

进行验证。但是，必须添加一条带有

debian传输的线路

，并通过

visudo

验证（未找到）。

确保添加健全性检查。