Dockerfile.azure

# Simplified Dockerfile for Azure App Service (Backend only)
# Frontend is now deployed as an Azure Static Web App
FROM python:3.11-slim

WORKDIR /app

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

# Copy backend requirements
COPY backend/requirements.txt .

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

# Copy backend source
COPY backend/ .

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

# Expose port
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD python -c "import requests; requests.get('http://localhost:8000/health')"

# Set environment variable for Azure
ENV FLASK_ENV=azure
ENV PORT=8000
ENV AZURE_DEPLOYMENT=true

# Start application with gunicorn for production
# Note: With eventlet worker, we must use only 1 worker for WebSocket support
CMD ["gunicorn", "--bind", "0.0.0.0:8000", "--worker-class", "eventlet", "--workers", "1", "--timeout", "120", "--log-level", "info", "wsgi:app"]