Web Application在Docker容器中无法运行。

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Web Application在Docker容器中无法运行。

我创建了一个样本ASP.Net Core Web应用程序，并尝试通过Docker运行（Windows 7和Docker Toolbox安装）。

以下是我的Docker文件（配置为Linux虚拟机）：

FROM microsoft/dotnet:2.2-aspnetcore-runtime AS base
WORKDIR /app
ENV ASPNETCORE_URLS=http://+:5000
FROM microsoft/dotnet:2.2-sdk AS build
WORKDIR /src
COPY ["SampleDockerWebApp.csproj", "./"]
RUN dotnet restore "./SampleDockerWebApp.csproj"
COPY . .
WORKDIR "/src/."
RUN dotnet build "SampleDockerWebApp.csproj" -c Release -o /app
FROM build AS publish
RUN dotnet publish "SampleDockerWebApp.csproj" -c Release -o /app
FROM base AS final
WORKDIR /app
COPY --from=publish /app .
ENTRYPOINT ["dotnet", "SampleDockerWebApp.dll"]

构建成功，得到以下输出：

e:\Other Projects\SampleProjects\DockerSample\SampleDockerWebApp>docker build -t cog/aspnetcore .
Sending build context to Docker daemon  4.741MB
Step 1/16 : FROM microsoft/dotnet:2.2-aspnetcore-runtime AS base
 ---> ce06b36fcba4
Step 2/16 : WORKDIR /app
 ---> Using cache
 ---> 184385dc16fb
Step 3/16 : ENV ASPNETCORE_URLS=http://+:5000
 ---> Running in cc7cf2932649
Removing intermediate container cc7cf2932649
 ---> 33c2ffc6311d
Step 4/16 : FROM microsoft/dotnet:2.2-sdk AS build
 ---> a4974ac66bfc
Step 5/16 : WORKDIR /src
 ---> Using cache
 ---> 7f9a2990f973
Step 6/16 : COPY ["SampleDockerWebApp.csproj", "./"]
 ---> Using cache
 ---> 454d49d40a80
Step 7/16 : RUN dotnet restore "./SampleDockerWebApp.csproj"
 ---> Using cache
 ---> 004067a08191
Step 8/16 : COPY . .
 ---> Using cache
 ---> e592a6eaf72d
Step 9/16 : WORKDIR "/src/."
 ---> Using cache
 ---> 0429435802ea
Step 10/16 : RUN dotnet build "SampleDockerWebApp.csproj" -c Release -o /app
 ---> Using cache
 ---> be154237597e
Step 11/16 : FROM build AS publish
 ---> be154237597e
Step 12/16 : RUN dotnet publish "SampleDockerWebApp.csproj" -c Release -o /app
 ---> Using cache
 ---> 0d0e5b7d2fba
Step 13/16 : FROM base AS final
 ---> 33c2ffc6311d
Step 14/16 : WORKDIR /app

之后，我运行了Docker Run命令来创建一个容器：

e:\Other Projects\SampleProjects\DockerSample\SampleDockerWebApp>docker run -d -p 8080:5000 cog/aspnetcore

在这里，容器成功创建，并且我能够看到以下日志：

E:\Other Projects\SampleProjects\DockerSample\SampleDockerWebApp>docker logs -f
a67a1d48f6a0089c4a6e92c2b56a095203290b09c679db172fb2b955bcfd424a
warn: Microsoft.AspNetCore.DataProtection.KeyManagement.XmlKeyManager[35]
      No XML encryptor configured. Key {77e3802b-efee-4a06-8daa-831a0e0ef771} may be persisted to storage in unencrypted form.
Hosting environment: Production
Content root path: /app
Now listening on: http://[::]:5000
Application started. Press Ctrl+C to shut down.

根据日志，容器已准备好并正在监听http://[::]:5000。但是，当我尝试使用http://localhost:5000或http://localhost:8080浏览网站时，两个URL都不起作用。

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