Containerfile

# Cerberus Containerfile (Compatible with Podman & Docker)
# Multi-stage build for smaller final image

# Stage 1: Build stage
FROM python:3.13-slim AS builder

# Install build dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    cmake \
    g++ \
    gcc \
    git \
    make \
    && rm -rf /var/lib/apt/lists/*

# Set working directory
WORKDIR /build

# Copy project files
COPY pyproject.toml CMakeLists.txt ./
COPY cerberus ./cerberus
COPY cpp ./cpp

# Install Python build dependencies
RUN pip install --no-cache-dir scikit-build-core pybind11

# Build the wheel (not editable mode)
RUN pip wheel --no-cache-dir --no-build-isolation --wheel-dir /wheels .

# Stage 2: Runtime stage
FROM python:3.13-slim

# Install runtime dependencies only
RUN apt-get update && apt-get install -y --no-install-recommends \
    libstdc++6 \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user for security
RUN useradd -m -u 1000 cerberus

# Set working directory
WORKDIR /app

# Copy and install the wheel from builder stage
COPY --from=builder /wheels/*.whl /tmp/
RUN pip install --no-cache-dir /tmp/*.whl && rm -rf /tmp/*.whl

# Change ownership to non-root user
RUN chown -R cerberus:cerberus /app

# Switch to non-root user
USER cerberus

# Set entrypoint
ENTRYPOINT ["cerberus"]

# Default command (can be overridden)
CMD []