尝试在Windows 2016 Core容器中创建计划的任务时出错 [英] Error trying to create a scheduled task within Windows 2016 Core container

问题描述

我正在尝试构建一个包含自定义计划任务的容器。
这是我的dockerfile：

I am trying to build a container which would include a custom scheduled task. This is my dockerfile:

FROM microsoft/windowsservercore
RUN schtasks /create /tn hello /sc daily /st 00:00 /tr "echo hello"

我收到以下错误：

错误：任务XML包含格式错误或
超出范围的值。 （43,4）：任务：

ERROR: The task XML contains a value which is incorrectly formatted or out of range. (43,4):Task:

在附加到运行的默认Windows核心容器并运行命令时，我也会遇到相同的错误

I get the same error also when attaching to a running default windows core container and running the command.

不用说，该命令在标准Windows 2016服务器上运行良好。

Needless to say, the command works well on standard windows 2016 server.

似乎是一个错误。在Windows容器中，但是我没有发现任何已知的问题。

It seems like a bug in Windows containers, but I didn't find any known issue about it.

赞赏任何可能有助于弄清楚的线索。

Appreciate any leads which may help figure out.

推荐答案

问题与容器用户有关。默认情况下，将与当前用户一起创建计划任务。容器用户可能是计划任务命令无法解析为XML的特殊用户。

The issue has to do with the Container user. By default a scheduled task is created with the current user. It's possible the container user is a special one that the Scheduled Task command cannot parse into XML.

因此，您必须通过用户 / ru （如果需要，还需要密码 / rp ）到Windows容器中的 schtasks 命令。

So you have to pass the user /ru (and if needed the password /rp) to the schtasks command in a Windows Container.

这有效

FROM microsoft/windowsservercore
RUN schtasks /create /tn "hellotest" /sc daily /tr "echo hello" /ru SYSTEM

它将在系统帐户下运行命令。

It will run the command under the system account.

如果您是Powershell的粉丝（像我一样），则可以使用此

If you are a fan of Powershell (like me), you can use this

FROM microsoft/windowsservercore

SHELL ["powershell", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPreference = 'SilentlyContinue';"]

RUN $action = New-ScheduledTaskAction -Execute 'echo ""Hello World""'; \
    $trigger = New-ScheduledTaskTrigger -Daily -At '1AM'; \
    Register-ScheduledTask -TaskName 'Testman' -User 'SYSTEM' -Action $action -Trigger $trigger -Description 'Container Scheduled task test';

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