FROM python:3.14-alpine

WORKDIR /app

RUN apk add --no-cache \
    gcc \
    musl-dev \
    linux-headers \
    curl

COPY requirements.txt .

RUN pip install --no-cache-dir -r requirements.txt

COPY . .

RUN mkdir -p /app/geoip_db /app/static /app/templates

ENV FLASK_HOST=0.0.0.0
ENV FLASK_PORT=5000
ENV FLASK_DEBUG=False
ENV PYTHONUNBUFFERED=1

EXPOSE ${FLASK_PORT:-5000}

HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD curl -f http://localhost:${FLASK_PORT:-5000}/ || exit 1

CMD gunicorn --bind 0.0.0.0:${FLASK_PORT:-5000} \
    --workers 1 \
    --threads 8 \
    --timeout 900 \
    --graceful-timeout 900 \
    --keep-alive 300 \
    --access-logfile - \
    --error-logfile - \
    --log-level info \
    app:app