docker pull microsoft/dotnet的时候，使用阿里云镜像，可能导致2.1-sdk无法获取，需要使用docker原始路径。

dotnet core 2.1:

[dockerfile]内容：

FROM microsoft/dotnet:2.1-runtime AS base
WORKDIR /app

FROM microsoft/dotnet:2.1-sdk AS build
WORKDIR /src
COPY console.csproj /src
RUN dotnet restore console.csproj
COPY . .
WORKDIR /src
RUN dotnet build console.csproj -c Release -o /app

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

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

新建一个控制台项目：console

dotnet new console

制作dockerfile文件

FROM microsoft/dotnet

WORKDIR /app

COPY . /app

CMD ["dotnet","run"]

打包镜像

docker build -t liuguojiang/console:dev

docker images

docker run --name console=dev liuguojiang:dev

docker ps -a

docker logs console-dev

制作新dockerfile文件

FROM microsoft/dotnet:sdk AS build-env

WORKDIR /code

COPY *.csproj /code

RUN dotnet restore

COPY . /code

RUN dotnet publish -c Release -o out

FROM microsoft/dotnet:runtime

WORKDIR /app

COPY --from=build-env /code/out /app

ENTRYPOINT ["dotnet","console.dll"]

docker build -t liuguojiang/console:build

dotnet run --name console-prod liuguojiang/console:prod

Docker build 命令

docker build [options] <path|URL>

Dockerfile

{

FROM|

COPY/ADD|

RUN/CMD|

ENTRYPOINT|

ENV|

EXPOSE|

WORKDIR

}

microsoft/dotnet

microsoft/dotnet:sdk

microsoft/dotnet:<version>-runtime

Dockerfile

From scratch  用到空白镜像

FROM microsoft/dotnet

WORKDIR /app

COPY . /app

CMD ["dotnet","run"]

 docker build -t anker/console:dev .

FROM microsoft/dotnet:sdk AS build_env

WORKDIR /code

COPY *.csproj /code

RUN dotnet restore

COPY . /code

RUN dotnet publish -c Release -o out

FROM microsoft/dotnet:runtime

WORKDIR /app

COPY --from=build_env /code/out /app

ENTRYPOINT ["dotnet","console.dll"]

docker build -t anker/console:prod .

dockerfile 的from要改成“mcr.microsoft.com/dotnet/core/sdk”

-deps 自包含 ：不用关心服务器的版本

推荐-runtime比较小