无法运行 Docker .NET 6 控制台映像

Question

嗨，我有以下 .NET 6 控制台应用程序的 dockerfile

FROM mcr.microsoft.com/dotnet/runtime:6.0 AS base
WORKDIR /app
FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
WORKDIR /src
COPY ["MyProj/MyProj.csproj", "MyProj/"]
RUN dotnet restore "MyProj/MyProj.csproj"
COPY . .
WORKDIR "/src/MyProj"
RUN dotnet build "MyProj.csproj" -c Release -o /app/build

FROM build AS publish
RUN dotnet publish "MyProj.csproj" -c Release -o /app/publish /p:UseAppHost=false

FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
ENTRYPOINT ["dotnet", "MyProj.dll"]

我正在使用 github actions CI 工具构建镜像并将其部署在 kubernets 中。我在构建时没有收到任何错误，但当图像运行时，我收到以下错误

You must install or update .NET to run this application.

App: /app/AL.AlphaLinerJob.dll
Architecture: x64
Framework: 'Microsoft.AspNetCore.App', version '6.0.0' (x64)
.NET location: /usr/share/dotnet/

No frameworks were found.

Learn about framework resolution:
https://aka.ms/dotnet/app-launch-failed

To install missing framework, download:
https://aka.ms/dotnet-core-applaunch?framework=Microsoft.AspNetCore.App&framework_version=6.0.0&arch=x64&rid=debian.11-x64

下面是csproj包

<ItemGroup>
        <PackageReference Include="Microsoft.Extensions.Configuration" Version="7.0.0" />
        <PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="7.0.0" />
        <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="7.0.0" />
        <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="7.0.0" />
        <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="7.0.0" />
        <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="5.0.0" />
        <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="7.0.0" />
        <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.17.0" />
        <PackageReference Include="Npgsql" Version="7.0.2" />
        <PackageReference Include="OpenTelemetry" Version="1.3.0-rc.2" />
        <PackageReference Include="OpenTelemetry.Exporter.Console" Version="1.1.0" />
        <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.1.0" />
        <PackageReference Include="OpenTelemetry.Exporter.Prometheus" Version="1.3.0-rc.2" />
        <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.0.0-rc9" />
        <PackageReference Include="prometheus-net" Version="7.0.0" />
        <PackageReference Include="prometheus-net.AspNetCore" Version="7.0.0" />
        <PackageReference Include="Npgsql" Version="7.0.2" />

我无法找到其根本原因。几天前它工作正常，突然开始出现此错误。有人可以帮我找到根本原因吗？任何帮助将不胜感激。

我希望能够成功运行该映像。

Answer 1

更改第一行：

FROM mcr.microsoft.com/dotnet/runtime:6.0 AS base

到

FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS base

Answer 2

其中一个包似乎依赖于存在的 ASP.NET Core 运行时（基于 csproj

 中的 

prometheus-net.AspNetCore

，

<FrameworkReference Include="Microsoft.AspNetCore.App" /> 将是主要候选者）。

要么将

base

更改为

FROM mcr.microsoft.com/dotnet/aspnet:6.0

，要么找到“有罪”包并将其删除。

可能相关 - 未找到框架“Microsoft.AspNetCore.App”，版本“6.0.0”（x64）

Answer 3

我解决了这个问题：

FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
...
FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build

当我使用不同的配置时，我面临一个事实 - 构建存在于代码

1

中，没有任何细节。第一次我以为是因为选择不正确

sdk

...

aspnet

等。但经过调查，我发现：

C:\Users\<UserName>\AppData\Local\Temp\tmp7082

.tmp 有详细信息。问题实际上是 1

projectA

引用了另一个

projectB

，但是两者都有

appsettings.json

，并且构建过程由于这种冲突而失败（1 个路径中有 2 个同名文件）