.Net Core Dockerfile build CS5001

huangapple
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英文:

.Net Core Dockerfile build CS5001

问题

目前我正在与Docker一起在.NET环境中使用MircoService架构进行开发。我正在尝试使用Dockerfile和docker-compose来构建一个具有更多项目依赖的WebAPI。目前我只有一个名为'AbsenceService'的容器和一个用于MySql数据库的容器。当运行docker-compose up时，总是会出现以下错误信息：

> CSC : error CS5001: Program does not contain a static 'Main' method suitable for an entry point [/src/_WebAppDemo.AbsenceService.Api/WebAppDemo.AbsenceService.Api.csproj]

项目结构如下所示：

.Net Core Dockerfile build CS5001

我的docker-compose文件如下所示：

  1. version: '3.8'
  2. services:
  3.   absenceServiceDatabase:
  4.     image: mysql:8.0.33
  5.     container_name: WebAppDemo.AbsenceService.Database
  6.     hostname: WebAppDemo.AbsenceService.Database
  7.     environment:
  8.         - ACCEPT_EULA='Y'
  9.         - MYSQL_ROOT_PASSWORD=toor
  10.     healthcheck:
  11.       test: ["CMD", "mysqladmin" ,"ping", "-h", "localhost"]
  12.       timeout: 10s
  13.       retries: 10
  14.     ports:
  15.         - "8003:3306"
  16.     networks:
  17.       - absenceServiceDatabase_net
  18.   #rabbitmq:
  19.   #  image: rabbitmq:3.12.1-management
  20.   #  container_name: rabbitmq
  21.   #  hostname: rabbitmq
  22.   #  command: rabbitmq-server
  23.   #  ports:
  24.   #    - "8000:15672"
  25.   #    - "8001:5672"
  26.   #  networks:
  27.   #      - rabbitmq_net
  28.   absenceService:
  29.     image: webappdemoabsenceservice:dev
  30.     container_name: WebAppDemo.AbsenceService.Api
  31.     hostname: WebAppDemo.AbsenceService.Api
  32.     build:
  33.       context: ./AbsenceService
  34.       dockerfile: Dockerfile
  35.     environment:
  36.         ASPNETCORE_ENVIRONMENT: Development
  37.     depends_on:
  38.       absenceServiceDatabase:
  39.         condition: service_healthy
  40.     ports:
  41.       - "8002:80"
  42.     networks:
  43.       - absenceService_net
  45. networks:
  46.   rabbitmq_net:
  47.     driver: bridge
  48.   absenceService_net:
  49.     driver: bridge
  50.   absenceServiceDatabase_net:
  51.     driver: bridge

我的dockerfile文件如下所示：

  1. FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS base
  2. WORKDIR /app
  3. EXPOSE 80
  4. EXPOSE 443
  6. FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
  7. WORKDIR /src
  9. COPY ["WebAppDemo.AbsenceService.Api/WebAppDemo.AbsenceService.Api.csproj", "_WebAppDemo.AbsenceService.Api/"]
  10. COPY ["WebAppDemo.AbsenceService.BussinessLogic/WebAppDemo.AbsenceService.BussinessLogic.csproj", "_WebAppDemo.AbsenceService.BussinessLogic/"]
  11. COPY ["WebAppDemo.AbsenceService.DataAccess/WebAppDemo.AbsenceService.DataAccess.csproj", "_WebAppDemo.AbsenceService.DataAccess/"]
  12. COPY ["WebAppDemo.AbsenceService.DataTransferObjects/WebAppDemo.AbsenceService.DataTransferObjects.csproj", "_WebAppDemo.AbsenceService.DataTransferObjects/"]
  13. COPY ["WebAppDemo.AbsenceService.IDataAccess/WebAppDemo.AbsenceService.IDataAccess.csproj", "_WebAppDemo.AbsenceService.IDataAccess/"]
  15. RUN dotnet restore "_WebAppDemo.AbsenceService.Api/WebAppDemo.AbsenceService.Api.csproj"
  16. COPY . ./
  17. WORKDIR "/src/_WebAppDemo.AbsenceService.Api/"
  18. RUN dotnet build "WebAppDemo.AbsenceService.Api.csproj" -c Release -o /app/build
  20. FROM build AS publish
  21. RUN dotnet publish "WebAppDemo.AbsenceService.Api.csproj" -c Release -o /app/publish /p:UseAppHost=false
  23. FROM base AS final
  24. WORKDIR /app
  25. COPY --from=publish /app/publish .
  26. ENTRYPOINT ["dotnet", "WebAppDemo.AbsenceService.Api.dll"]

非常感谢任何提示。

英文:

Currently I am working on MircoService architecture in conjunction with Docker in the .Net environment. I am trying a WebAPI that has more project dependencies via. Dockerfile & docker-compose. Currently I have only the 'AbsenceService' and another container for the MySql database. When running docker-compose up, the following error message always comes up:

> CSC : error CS5001: Program does not contain a static 'Main' method suitable for an entry point [/src/_WebAppDemo.AbsenceService.Api/WebAppDemo.AbsenceService.Api.csproj]

The project structure is as follows:

.Net Core Dockerfile build CS5001

My docker-compose looks like this:

  1. version: '3.8'
  2. services:
  3.   absenceServiceDatabase:
  4.     image: mysql:8.0.33
  5.     container_name: WebAppDemo.AbsenceService.Database
  6.     hostname: WebAppDemo.AbsenceService.Database
  7.     environment:
  8.         - ACCEPT_EULA='Y'
  9.         - MYSQL_ROOT_PASSWORD=toor
  10.     healthcheck:
  11.       test: ["CMD", "mysqladmin" ,"ping", "-h", "localhost"]
  12.       timeout: 10s
  13.       retries: 10
  14.     ports:
  15.         - "8003:3306"
  16.     networks:
  17.       - absenceServiceDatabase_net
  18.   #rabbitmq:
  19.   #  image: rabbitmq:3.12.1-management
  20.   #  container_name: rabbitmq
  21.   #  hostname: rabbitmq
  22.   #  command: rabbitmq-server
  23.   #  ports:
  24.   #    - "8000:15672"
  25.   #    - "8001:5672"
  26.   #  networks:
  27.   #      - rabbitmq_net
  28.   absenceService:
  29.     image: webappdemoabsenceservice:dev
  30.     container_name: WebAppDemo.AbsenceService.Api
  31.     hostname: WebAppDemo.AbsenceService.Api
  32.     build:
  33.       context: ./AbsenceService
  34.       dockerfile: Dockerfile
  35.     environment:
  36.         ASPNETCORE_ENVIRONMENT: Development
  37.     depends_on:
  38.       absenceServiceDatabase:
  39.         condition: service_healthy
  40.     ports:
  41.       - "8002:80"
  42.     networks:
  43.       - absenceService_net
  45. networks:
  46.   rabbitmq_net:
  47.     driver: bridge
  48.   absenceService_net:
  49.     driver: bridge
  50.   absenceServiceDatabase_net:
  51.     driver: bridge

My dockerfile looks like this:

  1. FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS base
  2. WORKDIR /app
  3. EXPOSE 80
  4. EXPOSE 443
  6. FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
  7. WORKDIR /src
  9. COPY ["WebAppDemo.AbsenceService.Api/WebAppDemo.AbsenceService.Api.csproj", "_WebAppDemo.AbsenceService.Api/"]
  10. COPY ["WebAppDemo.AbsenceService.BussinessLogic/WebAppDemo.AbsenceService.BussinessLogic.csproj", "_WebAppDemo.AbsenceService.BussinessLogic/"]
  11. COPY ["WebAppDemo.AbsenceService.DataAccess/WebAppDemo.AbsenceService.DataAccess.csproj", "_WebAppDemo.AbsenceService.DataAccess/"]
  12. COPY ["WebAppDemo.AbsenceService.DataTransferObjects/WebAppDemo.AbsenceService.DataTransferObjects.csproj", "_WebAppDemo.AbsenceService.DataTransferObjects/"]
  13. COPY ["WebAppDemo.AbsenceService.IDataAccess/WebAppDemo.AbsenceService.IDataAccess.csproj", "_WebAppDemo.AbsenceService.IDataAccess/"]
  15. RUN dotnet restore "_WebAppDemo.AbsenceService.Api/WebAppDemo.AbsenceService.Api.csproj"
  16. COPY . ./
  17. WORKDIR "/src/_WebAppDemo.AbsenceService.Api/"
  18. RUN dotnet build "WebAppDemo.AbsenceService.Api.csproj" -c Release -o /app/build
  20. FROM build AS publish
  21. RUN dotnet publish "WebAppDemo.AbsenceService.Api.csproj" -c Release -o /app/publish /p:UseAppHost=false
  23. FROM base AS final
  24. WORKDIR /app
  25. COPY --from=publish /app/publish .
  26. ENTRYPOINT ["dotnet", "WebAppDemo.AbsenceService.Api.dll"]

I am grateful for any tip.

答案1

得分: 1

以下是翻译好的内容：

> 总是出现以下错误信息：

仔细看一下 COPY . ./ 指令 - 你在这里将源代码和其他（如果有的话）资产复制到当前的工作目录 /src 中。
现在你的主入口点大致在这里：/src/WebAppDemo.AbsenceService.Api/Program.cs

然后你进入了一个只包含 .csproj 文件的合成目录：
WORKDIR "/src/_WebAppDemo.AbsenceService.Api/"。

现在你进入了错误的目录，并尝试运行构建命令：
RUN dotnet build "WebAppDemo.AbsenceService.Api.csproj" -c Release -o /app/build。
这肯定会失败（在这个目录中没有源代码）。

解决方案：将你的五个 COPY 指令更改为按原样复制项目目录：

  1. COPY ["WebAppDemo.AbsenceService.Api/", "./"]

等等。

但是这种方式不太理想，因为为了项目恢复而复制所有目录内容。

我宁愿这样做：

  1. COPY ["WebAppDemo.AbsenceService.Api/WebAppDemo.AbsenceService.Api.csproj", "WebAppDemo.AbsenceService.Api/"]
  2. COPY ["WebAppDemo.AbsenceService.BussinessLogic/WebAppDemo.AbsenceService.BussinessLogic.csproj", "WebAppDemo.AbsenceService.BussinessLogic/"]
  3. COPY ["WebAppDemo.AbsenceService.DataAccess/WebAppDemo.AbsenceService.DataAccess.csproj", "WebAppDemo.AbsenceService.DataAccess/"]
  4. COPY ["WebAppDemo.AbsenceService.DataTransferObjects/WebAppDemo.AbsenceService.DataTransferObjects.csproj", "WebAppDemo.AbsenceService.DataTransferObjects/"]
  5. COPY ["WebAppDemo.AbsenceService.IDataAccess/WebAppDemo.AbsenceService.IDataAccess.csproj", "WebAppDemo.AbsenceService.IDataAccess/"]

在恢复后，将其他资产复制到相应的目录中。
你刚刚进入了错误的目录执行 dotnet build 命令。

其他命令可能保持不变。
祝好运！

英文:

> the following error message always comes up:

See carefully line COPY . ./ directive - you copy here source code and other (if any) assets into current workdir, which is /src.
Now your main entry point is somewhat here: /src/WebAppDemo.AbsenceService.Api/Program.cs

Then you go to the synthetic directory, which contains only .csproj-file:
WORKDIR "/src/_WebAppDemo.AbsenceService.Api/".

Now you are in wrong directory, and are trying to run build command:
RUN dotnet build "WebAppDemo.AbsenceService.Api.csproj" -c Release -o /app/build.
Which would definitely fail (There are no source code in this directory).

Solution: change your five COPY directives to copying project directories as is:

  1. COPY ["WebAppDemo.AbsenceService.Api/", "./"]

Et cetera.

But this is kinda suboptimal to copy all of the directories content just for projects restore.

I would rather go to:

  1. COPY ["WebAppDemo.AbsenceService.Api/WebAppDemo.AbsenceService.Api.csproj", "WebAppDemo.AbsenceService.Api/"]
  2. COPY ["WebAppDemo.AbsenceService.BussinessLogic/WebAppDemo.AbsenceService.BussinessLogic.csproj", "WebAppDemo.AbsenceService.BussinessLogic/"]
  3. COPY ["WebAppDemo.AbsenceService.DataAccess/WebAppDemo.AbsenceService.DataAccess.csproj", "WebAppDemo.AbsenceService.DataAccess/"]
  4. COPY ["WebAppDemo.AbsenceService.DataTransferObjects/WebAppDemo.AbsenceService.DataTransferObjects.csproj", "WebAppDemo.AbsenceService.DataTransferObjects/"]
  5. COPY ["WebAppDemo.AbsenceService.IDataAccess/WebAppDemo.AbsenceService.IDataAccess.csproj", "WebAppDemo.AbsenceService.IDataAccess/"]

After restoring copy other assets in matching directories.
You just have gone into wrong directory for dotnet build command.

Others commands probably remain the same.
Cheers!

huangapple
  • 本文由 发表于 2023年8月9日 17:44:20
  • 转载请务必保留本文链接：https://go.coder-hub.com/76866488.html
  • .net
  • .net-core
  • c#
  • docker
  • docker-compose
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