Inboxintel/src/InboxIntel.Api/Dockerfile

# Multi-stage build for the ASP.NET Core API.
FROM mcr.microsoft.com/dotnet/sdk:10.0 AS build
WORKDIR /src

# Copy solution + project files first for layer-cached restore.
COPY Directory.Build.props ./
COPY src/InboxIntel.Domain/InboxIntel.Domain.csproj src/InboxIntel.Domain/
COPY src/InboxIntel.Application/InboxIntel.Application.csproj src/InboxIntel.Application/
COPY src/InboxIntel.Infrastructure/InboxIntel.Infrastructure.csproj src/InboxIntel.Infrastructure/
COPY src/InboxIntel.Api/InboxIntel.Api.csproj src/InboxIntel.Api/
RUN dotnet restore src/InboxIntel.Api/InboxIntel.Api.csproj

COPY src/ src/
RUN dotnet publish src/InboxIntel.Api/InboxIntel.Api.csproj -c Release -o /app/publish /p:UseAppHost=false

FROM mcr.microsoft.com/dotnet/aspnet:10.0 AS runtime
WORKDIR /app

# The slim aspnet:10.0 image dropped libgssapi_krb5, which Npgsql tries to load during
# connection negotiation ("Cannot load library libgssapi_krb5.so.2"). Harmless for password
# auth but noisy and a latent failure on some paths — install the Kerberos runtime lib.
RUN apt-get update \
    && apt-get install -y --no-install-recommends libgssapi-krb5-2 \
    && rm -rf /var/lib/apt/lists/*

COPY --from=build /app/publish .

# V-12: run as the non-root 'app' user shipped in the .NET 8 images. Pre-create the
# DataProtection key directory owned by that user so the (initially empty) 'keys'
# volume inherits app ownership on first mount and key persistence still works.
# NOTE: an EXISTING root-owned keys volume must be recreated for this to take effect.
RUN mkdir -p /keys && chown -R app:app /keys /app
USER app

EXPOSE 8080
ENTRYPOINT ["dotnet", "InboxIntel.Api.dll"]