Dockerfile

# Use Python 3.11 slim image for smaller size
FROM python:3.11-slim

# Set working directory
WORKDIR /app

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

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

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

# Copy source code
COPY src/ ./src/

# Create non-root user for security
RUN useradd --create-home --shell /bin/bash --user-group botuser && \
    chown -R botuser:botuser /app

# Switch to non-root user
USER botuser

# Create logs directory
RUN mkdir -p /app/logs

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
    CMD python -c "import sys; sys.exit(0)"

# Set Python path
ENV PYTHONPATH=/app

# Run the bot
CMD ["python", "src/main.py"]