C# GenerateRuntimeConfiguration文件任务意外失败

我在构建docker映像时遇到了不一致的错误。 如果我继续运行docker build，这会失败大约三分之一

完全错误是：

/usr/share/dotnet/sdk/2.1.301/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.targets(171,5): error MSB4018: The "GenerateRuntimeConfigurationFiles" task failed unexpectedly. [/app/MyProject.Api/MyProject.Api.csproj]
/usr/share/dotnet/sdk/2.1.301/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.targets(171,5): error MSB4018: System.IO.IOException: The process cannot access the file '/app/MyProject.Api/bin/Release/netcoreapp2.1/MyProject.Api.runtimeconfig.json' because it is being used by another process. [/app/MyProject.Api/MyProject.Api.csproj]
/usr/share/dotnet/sdk/2.1.301/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.targets(171,5): error MSB4018:    at System.IO.FileStream.Init(FileMode mode, FileShare share) [/app/MyProject.Api/MyProject.Api.csproj]
/usr/share/dotnet/sdk/2.1.301/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.targets(171,5): error MSB4018:    at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options) [/app/MyProject.Api/MyProject.Api.csproj]
/usr/share/dotnet/sdk/2.1.301/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.targets(171,5): error MSB4018:    at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize) [/app/MyProject.Api/MyProject.Api.csproj]
/usr/share/dotnet/sdk/2.1.301/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.targets(171,5): error MSB4018:    at System.IO.File.Create(String path) [/app/MyProject.Api/MyProject.Api.csproj]
/usr/share/dotnet/sdk/2.1.301/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.targets(171,5): error MSB4018:    at Microsoft.NET.Build.Tasks.GenerateRuntimeConfigurationFiles.WriteToJsonFile(String fileName, Object value) [/app/MyProject.Api/MyProject.Api.csproj]
/usr/share/dotnet/sdk/2.1.301/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.targets(171,5): error MSB4018:    at Microsoft.NET.Build.Tasks.GenerateRuntimeConfigurationFiles.WriteRuntimeConfig(ProjectContext projectContext) [/app/MyProject.Api/MyProject.Api.csproj]
/usr/share/dotnet/sdk/2.1.301/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.targets(171,5): error MSB4018:    at Microsoft.NET.Build.Tasks.GenerateRuntimeConfigurationFiles.ExecuteCore() [/app/MyProject.Api/MyProject.Api.csproj]
/usr/share/dotnet/sdk/2.1.301/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.targets(171,5): error MSB4018:    at Microsoft.NET.Build.Tasks.TaskBase.Execute() [/app/MyProject.Api/MyProject.Api.csproj]
/usr/share/dotnet/sdk/2.1.301/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.targets(171,5): error MSB4018:    at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute() [/app/MyProject.Api/MyProject.Api.csproj]
/usr/share/dotnet/sdk/2.1.301/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.targets(171,5): error MSB4018:    at Microsoft.Build.BackEnd.TaskBuilder.ExecuteInstantiatedTask(ITaskExecutionHost taskExecutionHost, TaskLoggingContext taskLoggingContext, TaskHost taskHost, ItemBucket bucket, TaskExecutionMode howToExecuteTask) [/app/MyProject.Api/MyProject.Api.csproj]
  MyProject.Api -> /app/MyProject.Api/bin/Release/netcoreapp2.1/MyProject.Api.dll
  MyProject.Api -> /app/MyProject.Api/out/
The command '/bin/sh -c ps -ef && dotnet publish --configuration Release --no-restore --framework netcoreapp2.1 --output out' returned a non-zero code: 1

困扰我的是这一行进程无法访问文件“/app/MyProject.Api/bin/Release/netcoreapp2.1/MyProject.Api.runtimeconfig.json”，因为另一个进程正在使用它。[/app/MyProject.Api/MyProject.Api.csproj]

还有什么进程可以锁定该文件

当生成过程未失败时，每次都会显示此警告：

/usr/share/dotnet/sdk/2.1.301/Microsoft.Common.CurrentVersion.targets(4560,5): warning MSB3026: Could not copy "/app/MyProject.Api/Keys/public.pem" to "bin/Release/netcoreapp2.1/Keys/public.pem". Beginning retry 1 in 1000ms. The process cannot access the file '/app/MyProject.Api/bin/Release/netcoreapp2.1/Keys/public.pem' because it is being used by another process.  [/app/MyProject.Api/MyProject.Api.csproj]

这看起来像是同一个问题，但已自行解决，并构建了映像，并且正确复制了public.pem文件

我的dockerfile：

FROM microsoft/dotnet:2.1-sdk AS build-env
WORKDIR /app

COPY . ./

RUN dotnet restore --source https://api.nuget.org/v3/index.json

RUN dotnet publish --configuration Release --no-restore --framework netcoreapp2.1 --output out

FROM microsoft/dotnet:2.1.1-aspnetcore-runtime as runtime
WORKDIR /app

COPY --from=build-env /app/MyProject.Api/out .
ENTRYPOINT ["dotnet", "MyProject.Api.dll"]

我像这样运行docker build： docker构建——无缓存-t myproject:test-f Dockerfile

我在github上发现的唯一类似的问题是，大多数情况下都是一致的失败，但经常失败，我仍然不明白为什么

---

感谢您的帮助

您可以在linux上使用fuser[used file]

或MacOS上的lsof[已用文件]

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查找该过程的pid。

我认为Dockerfile中的一些命令需要更改

FROM microsoft/dotnet:2.1-sdk AS build-env
WORKDIR /app

COPY *.csproj ./
RUN dotnet restore

# Copy everything else and build
COPY . ./
RUN dotnet publish -c Release -o out

# Build runtime image
FROM microsoft/dotnet:2.1.1-aspnetcore-runtime
WORKDIR /app
COPY --from=build-env /app/out .
ENTRYPOINT ["dotnet", "MyProject.Api.dll"]

参考资料：

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您能调查一下使用此文件的流程吗？看@shingo答案。