Dockerfile.prod

# Production API/worker image. The frontend is deployed independently to Vercel.

# Stage 1: builder — install system deps and Python packages
FROM python:3.12-slim AS api-builder

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

WORKDIR /build

COPY requirements.txt ./
RUN pip install --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# Stage 2: runtime image
FROM python:3.12-slim AS api

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

# Non-root user for security
RUN groupadd -r appuser && useradd -r -g appuser -d /app -s /sbin/nologin appuser

# Copy installed packages from builder
COPY --from=api-builder /usr/local/lib/python3.12/site-packages /usr/local/lib/python3.12/site-packages
COPY --from=api-builder /usr/local/bin /usr/local/bin

WORKDIR /app

# Copy application code
COPY . .

# Create writable runtime directories before named volumes are mounted. Docker
# copies this ownership into a fresh volume, allowing the non-root process to
# create and rotate its log files.
RUN mkdir -p /app/blob_storage /app/logs && chown -R appuser:appuser /app

USER appuser

EXPOSE 8000

HEALTHCHECK --interval=30s --timeout=5s --start-period=15s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')"

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