Cleanup the Dockerfile and slim-down container using .dockerignore

.dockerignore

@@ -1,4 +1,5 @@
 .vscode/
+.github/
 art/
 bin/
 node_modules/

Dockerfile

@@ -1,18 +1,20 @@
 # https://hub.docker.com/_/microsoft-dotnet-core
-FROM mcr.microsoft.com/dotnet/core/sdk:3.1 AS build
-WORKDIR /source
+FROM mcr.microsoft.com/dotnet/core/sdk:3.1 AS build-env
+WORKDIR /app
 
 # copy csproj and restore as distinct layers
-COPY *.csproj ./
+COPY WhatTheFuckShouldLukasHaveForLunch.csproj ./
 RUN dotnet restore
 
 # copy everything else and build app
-COPY . ./
-WORKDIR /source
-RUN dotnet publish -c Release -o /app --no-restore
+COPY . .
+
+# publish
+RUN dotnet publish -c Release -o out
 
 # final stage/image
 FROM mcr.microsoft.com/dotnet/core/aspnet:3.1
 WORKDIR /app
-COPY --from=build /app .
-CMD ASPNETCORE_URLS=http://*:$PORT dotnet WhatTheFuckShouldLukasHaveForLunch.dll
+
+COPY --from=build-env /app/out .
+ENTRYPOINT [ "dotnet", "WhatTheFuckShouldLukasHaveForLunch.dll" ]