我想对现有的 .NET core 5 应用程序进行 dockerize，并使用容器工具生成 Dockerfile。当我使用 Visual Studio 2022 进行调试时，它可以工作，但是当我使用命令手动运行它时docker build -t some-name .它会生成以下错误：
Step 7/21 : COPY ["MechEng.MovableBridges.Api/MechEng.MovableBridges.Api.csproj", "MechEng.MovableBridges.Api/"]
COPY failed: file not found in build context or excluded by .dockerignore: stat MechEng.MovableBridges.Api/MechEng.MovableBridges.Api.csproj: file does not exist
为什么找不到该文件？
这是我的 Dockerfile，位于MechEng.MovableBridges.Api folder:
#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/aspnet:5.0 AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443
FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build
WORKDIR /src
COPY ["MechEng.MovableBridges.Api/MechEng.MovableBridges.Api.csproj", "MechEng.MovableBridges.Api/"]
COPY ["MechEng.MovableBridges.Infrastructure/MechEng.MovableBridges.Infrastructure.csproj", "MechEng.MovableBridges.Infrastructure/"]
COPY ["MechEng.MovableBridges.MathCad/MechEng.MovableBridges.Infrastructure.MathCad.csproj", "MechEng.MovableBridges.MathCad/"]
COPY ["MechEng.MovableBridges.Application/MechEng.MovableBridges.Application.csproj", "MechEng.MovableBridges.Application/"]
COPY ["MechEng.MovableBridges.Domain/MechEng.MovableBridges.Domain.csproj", "MechEng.MovableBridges.Domain/"]
RUN dotnet restore "MechEng.MovableBridges.Api/MechEng.MovableBridges.Api.csproj"
COPY . .
WORKDIR "/src/MechEng.MovableBridges.Api"
RUN dotnet build "MechEng.MovableBridges.Api.csproj" -c Release -o /app/build
FROM build AS publish
RUN dotnet publish "MechEng.MovableBridges.Api.csproj" -c Release -o /app/publish
FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
ENTRYPOINT ["dotnet", "MechEng.MovableBridges.Api.dll"]
您的命令失败，因为构建上下文错误。 Visual Studio 使用解决方案根文件夹作为构建上下文，您（可能）使用项目的 dockerfile 的位置。您可以阅读有关 docker build 命令的更多信息here https://docs.docker.com/engine/reference/commandline/build/#build-with-path.
您的命令应类似于以下内容：
docker build -f "<path-to-your-dockerfile>" -t some-name "<!!!path-to-your-solution-folder!!!>"
您可以在输出窗口中看到 Visual Studio 执行的确切命令，并从下拉框中选择“容器工具”。
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