Dockerfile

# Use Python 3.11 slim image
FROM python:3.11-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

# Set work directory
WORKDIR /app

# Install system dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
    postgresql-client \
    gcc \
    python3-dev \
    musl-dev \
    libpq-dev \
    && rm -rf /var/lib/apt/lists/*

# Install Python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy project
COPY . .

# Create data directory
RUN mkdir -p /app/data

# Collect static files
RUN python manage.py collectstatic --noinput --clear || true

# Expose port
EXPOSE 8000

# Run the application
CMD ["gunicorn", "--bind", "0.0.0.0:8000", "credit_system.wsgi:application"]