# docker build -t dev .
Sending build context to Docker daemon  218.1kB
Step 1/16 : FROM microsoft/aspnetcore:2.0 AS base
Error parsing reference: "microsoft/aspnetcore:2.0 AS base" is not a valid repository/tag: invalid reference format

docker --version
Docker version 18.02.0-ce, build fc4de44

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

FROM microsoft/aspnetcore-build:2.0 AS build
WORKDIR /src
COPY XXXXXX.API.csproj ./
RUN dotnet restore
COPY . .
WORKDIR /src
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", "XXXXXX.API.dll"]