在 Docker 容器中运行实体框架

ASP .NET 7 上有一个 Web 应用程序，其中安装了实体框架依赖项（文件WebApplication.csproj）：

<Project Sdk="Microsoft.NET.Sdk.Web">

    <PropertyGroup>
        <TargetFramework>net7.0</TargetFramework>
        <Nullable>enable</Nullable>
        <ImplicitUsings>enable</ImplicitUsings>
        <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
    </PropertyGroup>

    <ItemGroup>
      <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.10">
        <PrivateAssets>all</PrivateAssets>
        <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
      </PackageReference>
      <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="7.0.4" />
    </ItemGroup>

</Project>

该应用程序在 Docker 容器中运行（文件内容Dockerfile）：

FROM mcr.microsoft.com/dotnet/aspnet:7.0 AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443

FROM mcr.microsoft.com/dotnet/sdk:7.0 AS build
WORKDIR /src
COPY ["WebApplication.csproj", "./"]
RUN dotnet restore "WebApplication.csproj"
COPY . .
WORKDIR "/src/"
RUN dotnet build "WebApplication.csproj" -c Release -o /app/build



# Добавляем Entity Framework CLI в образ
RUN dotnet tool install --global dotnet-ef --version 7.0.10
ENV PATH "$PATH:/root/.dotnet/tools"



FROM build AS publish
RUN dotnet publish "WebApplication.csproj" -c Release -o /app/publish /p:UseAppHost=false

# Окончательный образ для запуска приложения
FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
ENTRYPOINT ["dotnet", "WebApplication.dll"]

正如您在文件中看到的，当我们构建映像时，我们设置了dotnet-ef. 接下来，我们在帮助下docker compose up启动容器。

问题是，如果我进入容器 ( docker exec -it <container-id> /bin/bash) 并尝试执行命令dotnet ef（或任何其他命令），我会收到错误：

The command could not be loaded, possibly because:
  * You intended to execute a .NET application:
      The application 'dotnet-ef' does not exist.
  * You intended to execute a .NET SDK command:
      No .NET SDKs were found.

Download a .NET SDK:
https://aka.ms/dotnet/download

Learn about SDK resolution:
https://aka.ms/dotnet/sdk-not-found

尝试Dockerfile添加行：

# Установка .NET SDK для Entity Framework
RUN apt update && \
    apt install -y --no-install-recommends apt-transport-https && \
    apt install -y dotnet-sdk-7.0

但我收到一条消息，指出dotnet-sdk-7.0未找到存储库：

...
5.703 Reading package lists...
6.579 Building dependency tree...
6.766 Reading state information...
6.927 E: Unable to locate package dotnet-sdk-6.0
6.927 E: Couldn't find any package by glob 'dotnet-sdk-7.0'
------
failed to solve: process "/bin/sh -c apt update &&     apt install -y --no-install-recommends apt-transport-https &&     apt install -y dotnet-sdk-7.0" did not complete successfully: exit code: 100

如果我尝试安装 .NET SDK 版本不是 7.0，而是 6.0，也会出现同样的问题。也许有人有如何在 Docker 容器中使用实体框架的工作配置？因为我不知道我的方向是否正确，我的错误在哪里，哪里需要纠正。我将不胜感激任何帮助。