asp.net core 3.0 on docker

docker-compose.yml

version: "2"
services:
  my-app:
    image: thinktank/my-app:1.0
    build: 
      context: .
      dockerfile: Dockerfile
    ports:
      - "5000:5000"

# Or
#version: "2"
#services:
#  my-app:
#    image: thinktank/my-app:1.0
#    ports:
#      - "5000:5000"

Dockerfile

#
# dotnet new web
# touch Dockerfile
#

FROM mcr.microsoft.com/dotnet/core/sdk:3.0-buster AS build
WORKDIR /src
COPY . .
RUN dotnet restore
RUN dotnet publish -c Release -o /out

FROM mcr.microsoft.com/dotnet/core/aspnet:3.0
WORKDIR /app
COPY --from=build /out .
ENV ASPNETCORE_URLS http://*:5000
ENTRYPOINT ["dotnet", "my-dotnet.dll"]

# docker build -t thinktank/my-app:1.0 .