Dockerfile

FROM python:3.11-slim

# Set environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PIP_NO_CACHE_DIR=1 \
    PIP_DISABLE_PIP_VERSION_CHECK=1 \
    PIP_TRUSTED_HOST="pypi.org pypi.python.org files.pythonhosted.org"

# Create non-root user for security
RUN groupadd -r appuser && useradd -r -g appuser appuser

# Install system dependencies
RUN apt-get update && apt-get install -y \
    --no-install-recommends \
    curl \
    ca-certificates \
    && rm -rf /var/lib/apt/lists/* \
    && update-ca-certificates

# Set work directory
WORKDIR /app

# Copy requirements first for better caching
COPY requirements.txt .

# Install Python dependencies
RUN pip install --trusted-host pypi.org --trusted-host pypi.python.org --trusted-host files.pythonhosted.org --no-cache-dir -r requirements.txt

# Copy application code
COPY . .

# Create necessary directories and set permissions
RUN mkdir -p database static logs && \
    chown -R appuser:appuser /app

# Switch to non-root user
USER appuser

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8000/api/stats || exit 1

# Expose port
EXPOSE 8000

# Start application
ENTRYPOINT ["python", "run.py", "--host", "0.0.0.0", "--port", "8000"]