Extrudex/backend/Dockerfile

# ── Stage 1: Build ──────────────────────────────────────────
FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build
WORKDIR /src

# Copy csproj first for layer caching — restores before copying source
COPY Extrudex.csproj .
RUN dotnet restore

# Copy the rest of the source
COPY . .
RUN dotnet publish Extrudex.csproj \
    -c Release \
    -o /app/publish \
    --no-restore

# ── Stage 2: Runtime ────────────────────────────────────────
FROM mcr.microsoft.com/dotnet/aspnet:9.0 AS runtime
WORKDIR /app

# Install curl for health check (not included in aspnet base image)
RUN apt-get update && apt-get install -y --no-install-recommends curl && rm -rf /var/lib/apt/lists/*

# Non-root user for security
RUN adduser --disabled-password --gecos "" appuser
USER appuser

# Copy published output from build stage
COPY --from=build /app/publish .

# ASP.NET Core listens on 8080 by default in .NET 8+
EXPOSE 8080

# Health check against /health endpoint
HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
    CMD curl --fail http://localhost:8080/health || exit 1

ENTRYPOINT ["dotnet", "Extrudex.dll"]