在 Alpine 映像上运行 dotnet core 2.1 应用时出错

Question

在Win10机器上运行Docker。已启用 Linux 容器。我的应用程序在 Windows 和 Debian 映像上运行良好，但是当我切换到 Alpine 时，我收到此错误

PS C:CodeTestApp> docker run -it testapp:latest C:Program FilesDockerDockerResourcesbindocker.exe: Error response from daemon: OCI runtime create failed: container_linux.go:348: starting container process caused "exec: "/app/TestApp": stat /app/TestApp: no such file or directory": unknown.

我尝试更改入口点以匹配一些示例，但没有骰子。

FROM microsoft/dotnet:2.1-runtime-deps-alpine3.7 AS base
WORKDIR /app
FROM microsoft/dotnet:2.1-sdk-alpine3.7 AS build
WORKDIR /src
COPY TestApp/TestApp.csproj TestApp/
RUN dotnet restore TestApp/TestApp.csproj
COPY . .
WORKDIR /src/TestApp
RUN dotnet build TestApp.csproj -c Release -o /app
FROM build AS publish
RUN dotnet publish TestApp.csproj -c Release -o /app
FROM base AS final
WORKDIR /app
COPY --from=publish /app .
# This is for Windows and Debian images
# ENTRYPOINT ["dotnet", "TestApp.dll"]
ENTRYPOINT ["/app/TestApp"]

Answer 1

在此多阶段构建的不同阶段添加一些调试信息：

RUN ls -alrth /app

(在每个COPY或RUN dotnet命令之后(

并确保使用与 Windows 的首次构建不同的名称和标记来构建它，以确保不要在 Linux 环境中尝试 Windows 构建的映像。

docker build -t testApp-linux ...