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.Net Core Dockerfile build CS5001

2024-11-30 分类：日常运维 阅读(4) 评论(0)

英文:

.Net Core Dockerfile build CS5001

问题 {#heading}

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：

version: '3.8'
services:
  absenceServiceDatabase:
    image: mysql:8.0.33
    container_name: WebAppDemo.AbsenceService.Database
    hostname: WebAppDemo.AbsenceService.Database
    environment:
        - ACCEPT_EULA='Y'
        - MYSQL_ROOT_PASSWORD=toor
    healthcheck:
      test: ["CMD", "mysqladmin" ,"ping", "-h", "localhost"]
      timeout: 10s
      retries: 10
    ports:
        - "8003:3306"
    networks:
      - absenceServiceDatabase_net
  #rabbitmq:
  #  image: rabbitmq:3.12.1-management
  #  container_name: rabbitmq
  #  hostname: rabbitmq
  #  command: rabbitmq-server
  #  ports:
  #    - "8000:15672"
  #    - "8001:5672"
  #  networks:
  #      - rabbitmq_net
  absenceService:
    image: webappdemoabsenceservice:dev
    container_name: WebAppDemo.AbsenceService.Api
    hostname: WebAppDemo.AbsenceService.Api
    build:
      context: ./AbsenceService
      dockerfile: Dockerfile
    environment:
        ASPNETCORE_ENVIRONMENT: Development
    depends_on:
      absenceServiceDatabase:
        condition: service_healthy
    ports:
      - "8002:80"
    networks:
      - absenceService_net
`networks:
rabbitmq_net:
driver: bridge
absenceService_net:
driver: bridge
absenceServiceDatabase_net:
driver: bridge`
`
`

我的dockerfile文件如下所示：

FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443

FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
WORKDIR /src


COPY \["WebAppDemo.AbsenceService.Api/WebAppDemo.AbsenceService.Api.csproj", "_WebAppDemo.AbsenceService.Api/"\]
COPY \["WebAppDemo.AbsenceService.BussinessLogic/WebAppDemo.AbsenceService.BussinessLogic.csproj", "_WebAppDemo.AbsenceService.BussinessLogic/"\]
COPY \["WebAppDemo.AbsenceService.DataAccess/WebAppDemo.AbsenceService.DataAccess.csproj", "_WebAppDemo.AbsenceService.DataAccess/"\]
COPY \["WebAppDemo.AbsenceService.DataTransferObjects/WebAppDemo.AbsenceService.DataTransferObjects.csproj", "_WebAppDemo.AbsenceService.DataTransferObjects/"\]
COPY \["WebAppDemo.AbsenceService.IDataAccess/WebAppDemo.AbsenceService.IDataAccess.csproj", "_WebAppDemo.AbsenceService.IDataAccess/"\]


RUN dotnet restore "_WebAppDemo.AbsenceService.Api/WebAppDemo.AbsenceService.Api.csproj"
COPY . ./
WORKDIR "/src/_WebAppDemo.AbsenceService.Api/"
RUN dotnet build "WebAppDemo.AbsenceService.Api.csproj" -c Release -o /app/build


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

`FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
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:

version: '3.8'
services:
  absenceServiceDatabase:
    image: mysql:8.0.33
    container_name: WebAppDemo.AbsenceService.Database
    hostname: WebAppDemo.AbsenceService.Database
    environment:
        - ACCEPT_EULA='Y'
        - MYSQL_ROOT_PASSWORD=toor
    healthcheck:
      test: ["CMD", "mysqladmin" ,"ping", "-h", "localhost"]
      timeout: 10s
      retries: 10
    ports:
        - "8003:3306"
    networks:
      - absenceServiceDatabase_net
  #rabbitmq:
  #  image: rabbitmq:3.12.1-management
  #  container_name: rabbitmq
  #  hostname: rabbitmq
  #  command: rabbitmq-server
  #  ports:
  #    - "8000:15672"
  #    - "8001:5672"
  #  networks:
  #      - rabbitmq_net
  absenceService:
    image: webappdemoabsenceservice:dev
    container_name: WebAppDemo.AbsenceService.Api
    hostname: WebAppDemo.AbsenceService.Api
    build:
      context: ./AbsenceService
      dockerfile: Dockerfile
    environment:
        ASPNETCORE_ENVIRONMENT: Development
    depends_on:
      absenceServiceDatabase:
        condition: service_healthy
    ports:
      - "8002:80"
    networks:
      - absenceService_net
`networks:
rabbitmq_net:
driver: bridge
absenceService_net:
driver: bridge
absenceServiceDatabase_net:
driver: bridge`
`
`

My dockerfile looks like this:

FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443

FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
WORKDIR /src


COPY \[\"WebAppDemo.AbsenceService.Api/WebAppDemo.AbsenceService.Api.csproj\", \"_WebAppDemo.AbsenceService.Api/\"\]
COPY \[\"WebAppDemo.AbsenceService.BussinessLogic/WebAppDemo.AbsenceService.BussinessLogic.csproj\", \"_WebAppDemo.AbsenceService.BussinessLogic/\"\]
COPY \[\"WebAppDemo.AbsenceService.DataAccess/WebAppDemo.AbsenceService.DataAccess.csproj\", \"_WebAppDemo.AbsenceService.DataAccess/\"\]
COPY \[\"WebAppDemo.AbsenceService.DataTransferObjects/WebAppDemo.AbsenceService.DataTransferObjects.csproj\", \"_WebAppDemo.AbsenceService.DataTransferObjects/\"\]
COPY \[\"WebAppDemo.AbsenceService.IDataAccess/WebAppDemo.AbsenceService.IDataAccess.csproj\", \"_WebAppDemo.AbsenceService.IDataAccess/\"\]


RUN dotnet restore \"_WebAppDemo.AbsenceService.Api/WebAppDemo.AbsenceService.Api.csproj\"
COPY . ./
WORKDIR \"/src/_WebAppDemo.AbsenceService.Api/\"
RUN dotnet build \"WebAppDemo.AbsenceService.Api.csproj\" -c Release -o /app/build


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

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

I am grateful for any tip.

答案1 {#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：

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：

COPY ["WebAppDemo.AbsenceService.Api/WebAppDemo.AbsenceService.Api.csproj", "WebAppDemo.AbsenceService.Api/"]
COPY ["WebAppDemo.AbsenceService.BussinessLogic/WebAppDemo.AbsenceService.BussinessLogic.csproj", "WebAppDemo.AbsenceService.BussinessLogic/"]
COPY ["WebAppDemo.AbsenceService.DataAccess/WebAppDemo.AbsenceService.DataAccess.csproj", "WebAppDemo.AbsenceService.DataAccess/"]
COPY ["WebAppDemo.AbsenceService.DataTransferObjects/WebAppDemo.AbsenceService.DataTransferObjects.csproj", "WebAppDemo.AbsenceService.DataTransferObjects/"]
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:

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:

COPY ["WebAppDemo.AbsenceService.Api/WebAppDemo.AbsenceService.Api.csproj", "WebAppDemo.AbsenceService.Api/"]
COPY ["WebAppDemo.AbsenceService.BussinessLogic/WebAppDemo.AbsenceService.BussinessLogic.csproj", "WebAppDemo.AbsenceService.BussinessLogic/"]
COPY ["WebAppDemo.AbsenceService.DataAccess/WebAppDemo.AbsenceService.DataAccess.csproj", "WebAppDemo.AbsenceService.DataAccess/"]
COPY ["WebAppDemo.AbsenceService.DataTransferObjects/WebAppDemo.AbsenceService.DataTransferObjects.csproj", "WebAppDemo.AbsenceService.DataTransferObjects/"]
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!


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