docker - 使用Visual Studio时如何修复 'Docker command failed with exit code 125'

Question

我正在使用Visual Studio 2019来构建.NET CORE Web API。
当我通过VS2019使用docker构建应用程序时，出现错误:
“Docker命令失败，退出代码为125”。

知道是什么原因吗？
这是输出:

1>d2c0ee48dbf44507b3dee44a17ab8b8186fe4ec59c283af834191e8f3c902f1a
1>C:\Users\97254\.nuget\packages\microsoft.visualstudio.azure.containers.tools.targets\1.9.5\build\Container.targets(196,5): error CTC1015: Docker command failed with exit code 125.
1>C:\Users\97254\.nuget\packages\microsoft.visualstudio.azure.containers.tools.targets\1.9.5\build\Container.targets(196,5): error CTC1015: docker: Error response from daemon: hcsshim::CreateComputeSystem d2c0ee48dbf44507b3dee44a17ab8b8186fe4ec59c283af834191e8f3c902f1a: The request is not supported.
1>C:\Users\97254\.nuget\packages\microsoft.visualstudio.azure.containers.tools.targets\1.9.5\build\Container.targets(196,5): error CTC1015: (extra info: {"SystemType":"Container","Name":"d2c0ee48dbf44507b3dee44a17ab8b8186fe4ec59c283af834191e8f3c902f1a","Owner":"docker","IgnoreFlushesDuringBoot":true,"LayerFolderPath":"C:\\ProgramData\\Docker\\windowsfilter\\d2c0ee48dbf44507b3dee44a17ab8b8186fe4ec59c283af834191e8f3c902f1a","Layers":[{"ID":"51d2ce01-5190-5398-8d36-73a41302a60e","Path":"C:\\ProgramData\\Docker\\windowsfilter\\47c9023ce74aa96d2e5002cdf0f7e354f5de55b217e08498dda14e1be5d6998f"},{"ID":"c6ab7d12-aab5-5873-9f2e-0ec11613a58d","Path":"C:\\ProgramData\\Docker\\windowsfilter\\035fac58f721cc9c158ef24fdb84a7e74eb4eea2cf29421a3744241cc62eabe7"},{"ID":"cdf32ccb-53d2-56ad-8b1d-9dfa6ae076d7","Path":"C:\\ProgramData\\Docker\\windowsfilter\\7ac67c0c7c4a6dfc2c0becbc948078b48873f003c49f16c1d0be0d69b179d3b3"},{"ID":"4c8a0736-dba8-5fde-8cc0-56aa33e0149d","Path":"C:\\ProgramData\\Docker\\windowsfilter\\43ad281ee856dabf07411276e5774b386bd37aee8b3099c3b7faa1d314a7013e"},{"ID":"af791769-1fd1-5170-b6e4-2245156a8f6f","Path":"C:\\ProgramData\\Docker\\windowsfilter\\878625f6c364e37ff07532212a6979f096de46d9eb455c964366ecd5a9c03ba9"},{"ID":"082795f2-b562-5088-a34f-91d16d7e5c36","Path":"C:\\ProgramData\\Docker\\windowsfilter\\4dbda25002ed56956709c11b4cc902083e712fc8a862b2b62970e839ec2bffec"},{"ID":"e409f795-d9cf-539a-ac95-dbedc3506ccb","Path":"C:\\ProgramData\\Docker\\windowsfilter\\7e2f83b59544b3cf2e553cdd9d94dd27a4684360c23f44d93a2b39e5dd0301cb"},{"ID":"a5fdd7a2-0ea0-553a-9c1e-976a729321e3","Path":"C:\\ProgramData\\Docker\\windowsfilter\\27f0f73d07810d0877a35fc1215e5336e6034eba1c08974f2f308796c9a32890"},{"ID":"b0175521-e8e7-55e8-97a8-77d96d2bb78a","Path":"C:\\ProgramData\\Docker\\windowsfilter\\03bb0041548802485ca5cc3a0475fde8905f048e50eb6b43413b1796b34773ad"},{"ID":"85e06fce-32e5-5cb6-8678-a4750186c146","Path":"C:\\ProgramData\\Docker\\windowsfilter\\8f5d06ad16da8edecc28898e8cda1ce15e4087e16e1b9a5d2d7a4d10a2c55398"}],"HostName":"d2c0ee48dbf4","MappedDirectories":[{"HostPath":"c:\\users\\97254\\onecoremsvsmon\\16.3.0039.0","ContainerPath":"c:\\remote_debugger","ReadOnly":true,"BandwidthMaximum":0,"IOPSMaximum":0,"CreateInUtilityVM":false},{"HostPath":"c:\\cheggtest\\qfetcherapi","ContainerPath":"c:\\app","ReadOnly":false,"BandwidthMaximum":0,"IOPSMaximum":0,"CreateInUtilityVM":false},{"HostPath":"c:\\cheggtest","ContainerPath":"c:\\src","ReadOnly":false,"BandwidthMaximum":0,"IOPSMaximum":0,"CreateInUtilityVM":false},{"HostPath":"c:\\users\\97254\\.nuget\\packages","ContainerPath":"c:\\.nuget\\fallbackpackages2","ReadOnly":false,"BandwidthMaximum":0,"IOPSMaximum":0,"CreateInUtilityVM":false},{"HostPath":"c:\\program files\\dotnet\\sdk\\nugetfallbackfolder","ContainerPath":"c:\\.nuget\\fallbackpackages","ReadOnly":false,"BandwidthMaximum":0,"IOPSMaximum":0,"CreateInUtilityVM":false}],"HvPartition":true,"EndpointList":["766EA888-2541-4D88-B330-EBD3ECA2FF64"],"HvRuntime":{"ImagePath":"C:\\ProgramData\\Docker\\windowsfilter\\8f5d06ad16da8edecc28898e8cda1ce15e4087e16e1b9a5d2d7a4d10a2c55398\\UtilityVM"},"AllowUnqualifiedDNSQuery":true}).

Answer 1

使用Windows容器时出现了同样的错误。但是，我切换到Linux容器，它告诉我必须启用卷共享。一旦启用，示例说明就可以完美运行。

我怀疑Windows容器现在无法正常工作的原因之一是，在nanoserver的内部版本1809中，USERNAME已从ContainerAdministrator切换为ContainerUser，后者无权在Docker中写入C:的根目录。

我现在有一个解决方法，可让您解决尝试使用Windows容器运行此示例应用程序时遇到的问题。

当添加Studio支持(Windows)时，Visual Studio 2019为您创建Docker文件时，该Dockerfile从顶部开始如下所示:

FROM mcr.microsoft.com/dotnet/core/aspnet:3.1-nanoserver-1809 AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443

将其更改为以下内容:

FROM mcr.microsoft.com/dotnet/core/aspnet:3.1-nanoserver-1809 AS base
USER ContainerAdministrator
RUN net localgroup administrators /add "User Manager\ContainerUser"
USER ContainerUser
WORKDIR /app
EXPOSE 80
EXPOSE 443

请注意，我添加的3行实际上将ContainerUser提升为admin。

打开powershell命令提示符，然后执行以下操作:

docker rmi projname:dev

其中projname是您的项目的名称。这将导致Visual Studio从已编辑的dockerfile重建。

在共享的_Layout.cshtml页面下，您可以在@RenderBody()的行上设置断点。设置该断点，然后按F5键运行以进行调试。

您应该看到docker重新构建并成功运行，打开浏览器，并在该行中断。再次按F5键以允许页面在浏览器中呈现。

让我知道这是否适合您。