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

# Set working directory
WORKDIR /app

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

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

# Copy requirements file
COPY requirements.txt .

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

# Copy application code
COPY microservice.py .

# Expose port 5001
EXPOSE 5001

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD python -c "import requests; requests.get('http://localhost:5001/', timeout=5)"

# Run the application with gunicorn
CMD ["gunicorn", "--bind", "0.0.0.0:5001", "--workers", "2", "--timeout", "120", "--access-logfile", "-", "--error-logfile", "-", "microservice:app"]