如何dockerize ASP.NET Core 2.0应用程序？

Question

我有一个简单的ASP.NET Core 2.0应用程序，在解决方案中有两个项目。一个项目是一个类库（WorldLibrary.dll），它由Web应用程序（WeatherWeb.dll）引用。

我试图在这里遵循的步骤：

https://docs.docker.com/engine/examples/dotnetcore/

这是我Dockerfile：

FROM microsoft/aspnetcore-build:2.0 AS build-env 
WORKDIR /app 

# Copy csproj and restore as distinct layers 
COPY *.csproj ./ 
RUN dotnet restore 

# Copy everything else and build 
COPY . ./ 
RUN dotnet publish -c Release -o out 

# Build runtime image 
FROM microsoft/aspnetcore:2.0 
WORKDIR /app 
COPY --from=build-env /app/out . 
ENTRYPOINT ["dotnet", "WeatherWeb.dll"] 

但是，有与引用的.dll文件的问题。我得到下面的输出从“泊坞窗构建”命令：

C:\Users\olavt\source\repos\Weather\WeatherWeb>docker build -t weather . 
Sending build context to Docker daemon 6.398MB 
Step 1/10 : FROM microsoft/aspnetcore-build:2.0 AS build-env 
---> df4c9af52c86 
Step 2/10 : WORKDIR /app 
---> Using cache 
---> ae9d1b099da7 
Step 3/10 : COPY *.csproj ./ 
---> Using cache 
---> 2d9f3fba6470 
Step 4/10 : RUN dotnet restore 
---> Using cache 
---> 19af5fb355a3 
Step 5/10 : COPY . ./ 
---> 1704520a3ced 
Step 6/10 : RUN dotnet publish -c Release -o out 
---> Running in 7bcdf847e4dc 
/usr/share/dotnet/sdk/2.0.2/NuGet.targets(792,5): warning MSB3202: The project file "/WorldLibrary/WorldLibrary.csproj" was not found. [/app/WeatherWeb.csproj] 
Microsoft (R) Build Engine version 15.4.8.50001 for .NET Core 
Copyright (C) Microsoft Corporation. All rights reserved. 

/usr/share/dotnet/sdk/2.0.2/Microsoft.Common.CurrentVersion.targets(1768,5): warning : The referenced project '../WorldLibrary/WorldLibrary.csproj' does not exist. [/app/WeatherWeb.csproj] 
Controllers/Api/WeatherController.cs(6,7): error CS0246: The type or namespace name 'WorldLibrary' could not be found (are you missing a using directive or an assembly reference?) [/app/WeatherWeb.csproj] 
Controllers/WeatherController.cs(6,7): error CS0246: The type or namespace name 'WorldLibrary' could not be found (are you missing a using directive or an assembly reference?) [/app/WeatherWeb.csproj] 
Controllers/Api/WeatherController.cs(14,39): error CS0246: The type or namespace name 'Weather' could not be found (are you missing a using directive or an assembly reference?) [/app/WeatherWeb.csproj] 
The command '/bin/sh -c dotnet publish -c Release -o out' returned a non-zero code: 1 

C:\Users\olavt\source\repos\Weather\WeatherWeb> 

应该如何正确我得到引用的.dll文件复制是否正确？

Answer 1

如果是相关项目，您必须针对解决方案文件运行dotnet restore和dotnet publish，并将docker文件置于解决方案级别，以便可以从中访问所有项目。

基本上你需要在泊坞窗文件是唯一的变化：

COPY *.sln ./ 
COPY ./your_proj1_folder/*.csproj ./your_proj1_folder/ 
COPY ./your_proj2_folder/*.csproj ./your_proj2_folder/ 
RUN dotnet restore 

Answer 2

的ASP.NET核心项目模板包含一个选项，提供了针对Linux或Windows容器的选项添加泊坞支持。

即使你创建一个没有泊坞支持的核心ASP.NET Web应用程序，您可以将其从Project > Docker Support菜单

生成Dockerfile执行定义基本图像添加到现有的项目，则执行该DOTNET恢复，建设，发布步骤并创建运行Web应用程序的最终图像：

FROM microsoft/aspnetcore:2.0 AS base 
WORKDIR /app 
EXPOSE 80 

FROM microsoft/aspnetcore-build:2.0 AS build 
WORKDIR /src 
COPY *.sln ./ 
COPY WebApplication1/WebApplication1.csproj WebApplication1/ 
RUN dotnet restore 
COPY . . 
WORKDIR /src/WebApplication1 
RUN dotnet build -c Release -o /app 

FROM build AS publish 
RUN dotnet publish -c Release -o /app 

FROM base AS final 
WORKDIR /app 
COPY --from=publish /app . 
ENTRYPOINT ["dotnet", "WebApplication1.dll"] 

它还生成一个docker-compose.yml文件，该文件描述了imagesyou希望部署。在这种情况下，我已经添加了两个网络应用程序。第一个是使用Docker支持创建的。在第二个，之后增加了Docker支持。 docker-compose.yml文件包括两个：

version: '3' 

services: 
    webapplication1: 
    image: webapplication1 
    build: 
     context: . 
     dockerfile: WebApplication1\Dockerfile 

    webapplication2: 
    image: webapplication2 
    build: 
     context: . 
     dockerfile: WebApplication2\Dockerfile