Dockerfile

FROM python:3.12-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/*

# Set environment variables for caching and logging
ENV TRANSFORMERS_CACHE=/tmp/transformers_cache
ENV HF_HOME=/tmp/huggingface_hub
ENV LOG_FILE=/tmp/logs/chatbot.log
ENV PYTHONUNBUFFERED=1
ENV HOST=0.0.0.0
ENV PORT=7860

# Create writable directories
RUN mkdir -p /tmp/transformers_cache /tmp/huggingface_hub /tmp/logs
RUN chmod 777 /tmp/transformers_cache /tmp/huggingface_hub /tmp/logs

# Copy and install requirements
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application files
COPY app.py .
COPY utils.py .
COPY config.py .
COPY embeddings/ ./embeddings/

# Expose port
EXPOSE 7860

# Run the application
CMD ["python", "-m", "uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]