Update hub service

Hub/Service/Dockerfile

@@ -0,0 +1,16 @@
+FROM microsoft/dotnet:2.2-aspnetcore-runtime-stretch-slim AS base
+WORKDIR /app
+EXPOSE 80
+
+FROM microsoft/dotnet:2.2-sdk-stretch AS build
+WORKDIR /src
+COPY ["./Service.csproj", "./"]
+RUN dotnet restore "Service.csproj"
+COPY . .
+WORKDIR "/src"
+RUN dotnet publish "Service.csproj" -c Release -o /app
+
+FROM base AS final
+WORKDIR /app
+COPY --from=build /app .
+ENTRYPOINT ["dotnet", "ChrisKaczor.HomeMonitor.Hub.Service.dll"]