asp.net - 无法加载共享库 "libgdiplus"- Docker [带有 Aspose API 的 .NET 应用程序]

Question

当我创建一个用于部署的 docker 文件时，该应用程序通常在开发环境中工作，但它失败了 libgdiplus 问题。

DockerFile

FROM mcr.microsoft.com/dotnet/core/aspnet:3.0 AS base
WORKDIR /app
FROM mcr.microsoft.com/dotnet/core/sdk:3.0 AS build


RUN apt-get update && apt-get install -y apt-utils
RUN apt-get install -y libfontconfig1
RUN apt-get install -y libgdiplus
RUN apt-get install -y libc6-dev 
RUN ln -s /usr/lib/libgdiplus.so/usr/lib/gdiplus.dll

# copy csproj and restore as distinct layers
WORKDIR /src
COPY HelloWorld/HelloWorld.csproj HelloWorld/
RUN dotnet restore HelloWorld/HelloWorld.csproj
COPY . .


WORKDIR /src/HelloWorld
RUN dotnet build HelloWorld.csproj -c Release -o /app

FROM build AS publish
RUN dotnet publish HelloWorld.csproj -c Release -o /app

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

即使我尝试了下面的脚本来加载库，但仍然失败

RUN apt-get update \ 
    && apt-get install -y --allow-unauthenticated \
     libc6-dev \ 
    libgdiplus \ 
    libx11-dev \ 
    && rm -rf /var/lib/apt/lists/*

错误

 Connection id "0HLRJJEGNBH3R", Request id "0HLRJJEGNBH3R:00000001": An unhandled exception was thrown by the application.
Aspose.Slides.PptxReadException: The type initializer for 'Gdip' threw an exception.
 ---> System.TypeInitializationException: The type initializer for 'Gdip' threw an exception.
 ---> System.DllNotFoundException: Unable to load shared library 'libgdiplus' or one of its dependencies. In order to help diagnose loading problems, consider setting the LD_DEBUG environment variable: liblibgdiplus: cannot open shared object file: No such file or directory
   at System.Drawing.SafeNativeMethods.Gdip.GdiplusStartup(IntPtr& token, StartupInput& input, StartupOutput& output)

Answer 1

您正在构建容器镜像中安装 libgdiplus，但不在最终容器镜像中。您需要确保在最终容器镜像中安装了 libgdiplus。

您可以考虑像这样修改 Dockerfile:

FROM mcr.microsoft.com/dotnet/core/aspnet:3.0 AS base
RUN apt-get update && apt-get install -y libgdiplus

WORKDIR /app
FROM mcr.microsoft.com/dotnet/core/sdk:3.0 AS build
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