Dockerfile

# Dockerfile for Django Approval System
FROM python:3.11-slim

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

# Set work directory
WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    postgresql-client \
    gcc \
    && rm -rf /var/lib/apt/lists/*

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

# Copy project
COPY . /app/

# Create directories
RUN mkdir -p /app/staticfiles /app/media /app/logs

# Collect static files
RUN python manage.py collectstatic --noinput --settings=config.settings.prod || true

# Create non-root user
RUN useradd -m -u 1000 appuser && chown -R appuser:appuser /app
USER appuser

# Expose port
EXPOSE 8000

# Run gunicorn
CMD ["gunicorn", "--bind", "0.0.0.0:8000", "--workers", "3", "approval_system.wsgi:application"]