为什么这个ansible lineinfile命令检查/ etc / sudoers中的一行是否在一个非常相似的行成功时失败？

Question

我让Kodi在Raspberry Pi上运行，为此我正在写一本Ansible剧本。 这个剧本包括两个任务，用于检查/etc/sudoers是否存在一行，其中一行一致，但另一行一致失败。 我似乎无法确定原因; 这两个任务的语法完全相同，两行都在/etc/sudoers文件中。 我已经在下面提供了相关代码，任何输入都将受到高度赞赏。

/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

来自剧本任务的相关片段：

- 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，但我在试图弄清楚为什么其他任务不起作用以证明一点时添加了它。）

这是我运行剧本时的输出：

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

Answer 1

我想你可能正在经历拉动请求＃6652中描述的内容

更换visudo在您的validate与完整路径visudo ，它应该工作。

- 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（具有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验证。 然而，必须添加带有debian-transmission的行并通过visudo验证（未找到）。