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如何为多个项目构建一个 docker 镜像?

[英]How to build one docker image for multiple projects?

在我的项目中,我使用 .net core 2.2 ,最近我在我的项目中使用了额外的类库。 当我尝试构建我的映像时,它找不到我的 dll。

我的 docker 文件如下所示:

FROM mcr.microsoft.com/dotnet/core/sdk:2.2 AS build-env
WORKDIR /app
# Copy csproj and restore as distinct layers
COPY *.csproj ./
RUN dotnet restore

COPY . ./
RUN dotnet publish -c Release -o out
# Build runtime image
FROM mcr.microsoft.com/dotnet/core/aspnet:2.2
WORKDIR /app
EXPOSE 80
COPY --from=build-env /app/out .
ENTRYPOINT ["dotnet", "LibvirtManagement.dll"]

我收到这样的错误:

 The project file "/JenkinsService/JenkinsService.csproj" was not found. 
 [/app/LibvirtManagement.sln]
The command '/bin/sh -c dotnet publish -c Release -o out' returned a non-zero code: 1

错误消息非常简单,您在构建它的JenkinsService.csproj容器中缺少该项目中的JenkinsService.csproj和其他文件。 您还需要复制这些文件。

如果您使用的是 Visual Studio,最简单的方法是右键单击可执行项目文件(在您的情况下为LibvirtManagement ),然后选择Add -> Docker Support... 它将为您自动生成正确的Dockerfile

编辑:这是这个工具为我创建的:

#See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.

FROM mcr.microsoft.com/dotnet/core/aspnet:2.2-stretch-slim AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443

FROM mcr.microsoft.com/dotnet/core/sdk:2.2-stretch AS build
WORKDIR /src
COPY ["LibvirtManagement/LibvirtManagement.csproj", "LibvirtManagement/"]
COPY ["JenkinsService/JenkinsService.csproj", "JenkinsService/"]
RUN dotnet restore "LibvirtManagement/LibvirtManagement.csproj"
COPY . .
WORKDIR "/src/LibvirtManagement"
RUN dotnet build "LibvirtManagement.csproj" -c Release -o /app/build

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

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

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