在博文（【Azure App Service For Container】创建ASP.NET Core Blazor项目并打包为Linux镜像发布到Azure应用服务）中我们通过VS 2019可以为项目添加Dockerfile并自动生成Docker Image文件。但是如果不借助于VS2019我们如何来操作呢？
解决步骤 准备Dockerfile
进入项目文件夹中，创建Dockerfile并COPY以下内容：
#See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.
#Depending on the operating system of the host machines(s) that will build or run the containers, the image specified in the FROM statement may need to be changed.
#For more information, please see https://aka.ms/containercompat
FROM mcr.microsoft.com/dotnet/aspnet:5.0 AS base
FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build
ENV ASPNETCORE_URLS=http://+:8000
WORKDIR /app
EXPOSE 8000
EXPOSE 5000
COPY . /app/
ENTRYPOINT ["dotnet", "MyLife.Blazor.Server.dll"]