Question

当我创建用于部署的docker文件时，该应用程序通常可以在开发环境中使用，但出现 libgdiplus 问题失败。

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"]

即使我尝试了以下脚本来加载库，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

您要在构建容器映像中安装libgdiplus，但不能在最终容器映像中安装libgdiplus。您需要确保在最终的容器映像中安装了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
[...]

Answer 2

以下是您如何构建自定义docker映像来处理dotnetcore 2.2中的此问题的方法：

我必须使用此过程将所有必需的库添加到我的容器中，以便它可以与system.drawing一起使用。可能必须为3.1更新。我今天实际上正在为3.1工作，所以我将在找到它们时提供所有更新的说明：

1）docker pull ubuntu

2）docker运行-t ubuntu：latest / bin / bash->打开容器外壳->

3）apt-get更新apt

4）apt-get install wget

5）wget -q https://packages.microsoft.com/config/ubuntu/18.04/packages-microsoft-prod.deb -Opackages-microsoft-prod.deb

6）dpkg -i软件包-microsoft-prod.deb

7）apt-get install apt-transport-https

8）易于获取更新

9）apt-get install dotnet-sdk-2.2 <----这肯定需要更改

10）apt-get install libgdiplus

11）cd / usr / lib

12）ln -s libgdiplus.so gdiplus.dll

13）apt-get install libc6-dev libx11-dev

14）rm -rf / var / lib / apt / lists / *

无法加载共享库“ libgdiplus”-Docker [具有Aspose API的.NET应用程序]

2 个答案: