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| FROM python:3.11-slim | |
| LABEL maintainer="SRE Team" | |
| LABEL description="Linux System Reliability Engineer Training Environment" | |
| # Set working directory | |
| WORKDIR /app | |
| # Install system dependencies | |
| RUN apt-get update && apt-get install -y \ | |
| curl \ | |
| git \ | |
| build-essential \ | |
| && rm -rf /var/lib/apt/lists/* | |
| # Create a non-root user for runtime. | |
| RUN useradd --create-home --uid 10001 appuser | |
| # Copy requirements and install Python dependencies | |
| COPY requirements.txt . | |
| RUN pip install --no-cache-dir -r requirements.txt | |
| # Copy application code | |
| COPY . . | |
| RUN chown -R appuser:appuser /app | |
| # Expose port for API | |
| EXPOSE 7860 | |
| # Health check | |
| HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \ | |
| CMD curl -f http://localhost:7860/health || exit 1 | |
| # Set environment variables | |
| ENV PYTHONUNBUFFERED=1 | |
| ENV PYTHONDONTWRITEBYTECODE=1 | |
| ENV APP_ENV=production | |
| # Drop root privileges for runtime. | |
| USER appuser | |
| # Default command: run server | |
| CMD ["python", "-m", "uvicorn", "src.server:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "1", "--proxy-headers"] | |
| # Alternative commands: | |
| # For development: docker run -it -p 8000:8000 linux-sre-env python demo.py | |
| # For interactive: docker run -it -p 8000:8000 linux-sre-env /bin/bash | |