Initial commit carried over from private repo. This is V2.

Dockerfile

@@ -0,0 +1,24 @@
+# Base image
+FROM mcr.microsoft.com/dotnet/aspnet:9.0 AS base
+WORKDIR /app
+EXPOSE 80
+
+FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build
+WORKDIR /src
+
+# Copy and restore with custom config
+COPY NuGet.config ./
+COPY Directory.Packages.props ./
+COPY code/ ./code/
+
+WORKDIR /src/code/MessengerApi
+RUN dotnet restore MessengerApi.csproj
+
+# Build and publish
+RUN dotnet publish MessengerApi.csproj -c Release -o /app/publish
+
+FROM base AS final
+WORKDIR /app
+COPY --from=build /app/publish .
+
+ENTRYPOINT ["dotnet", "MessengerApi.dll"]