Dockerfile

# ==============================================================================
# AutoINCC Dockerfile - Multi-Stage Optimized Build
# ==============================================================================

# Stage 1: Build & Dependencies
FROM python:3.11-slim AS builder

WORKDIR /build

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1

RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    libpq-dev \
    gcc \
    && rm -rf /var/lib/apt/lists/*

COPY requirements.txt .

RUN pip install --no-cache-dir --upgrade pip && \
    pip wheel --no-cache-dir --wheel-dir /build/wheels -r requirements.txt


# Stage 2: Final Minimal Runtime
FROM python:3.11-slim AS runtime

WORKDIR /app

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PYTHONPATH=/app

RUN apt-get update && apt-get install -y --no-install-recommends \
    libpq5 \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Copy pre-compiled wheels from builder stage
COPY --from=builder /build/wheels /wheels
RUN pip install --no-cache-dir /wheels/* && rm -rf /wheels

# Create non-root system user for security
RUN groupadd -g 10001 appgroup && \
    useradd -u 10001 -g appgroup -s /bin/bash -m appuser

# Copy application source code
COPY --chown=appuser:appgroup app /app/app

# Fix ownership of WORKDIR so celery beat can write schedule file
RUN chown appuser:appgroup /app

USER appuser

EXPOSE 8000

HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8000/health || exit 1

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]