Multistage Build Docker para .Net Core 3.1

Dockerfile

FROM mcr.microsoft.com/dotnet/core/aspnet:3.1-buster-slim AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443

FROM mcr.microsoft.com/dotnet/core/sdk:3.1-buster AS build
WORKDIR /src
COPY ["MinhaAplicacao.Api/MinhaAplicacao.Api.csproj", "MinhaAplicacao.Api/"]
COPY ["MinhaAplicacao.Domain/MinhaAplicacao.Domain.csproj", "MinhaAplicacao.Domain/"]
COPY ["MinhaAplicacao.Repository/MinhaAplicacao.Repository.csproj", "MinhaAplicacao.Repository/"]
RUN dotnet restore "MinhaAplicacao.Api/MinhaAplicacao.Api.csproj"
COPY . .
WORKDIR "/src/MinhaAplicacao.Api"
RUN dotnet build "MinhaAplicacao.Api.csproj" -c Release -o /app/build

FROM build AS publish
RUN dotnet publish "MinhaAplicacao.Api.csproj" -c Release -o /app/publish

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