Dockerfile

FROM python:3.9.6

# Create a non-root user
RUN useradd -m appuser

WORKDIR /app

# Copy app files
COPY . /app

RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    software-properties-common \
    git \
    && rm -rf /var/lib/apt/lists/*

# COPY requirements.txt ./

# Install dependencies
RUN pip install --upgrade pip \
 && pip install -r requirements.txt

# Set the HOME env to a writable path (this is the key!)
ENV HOME=/app
ENV STREAMLIT_HOME=/app/.streamlit

# Create .streamlit dir and set permissions
RUN mkdir -p /app/.streamlit && \
    chown -R appuser:appuser /app

# Switch to non-root user
USER appuser

EXPOSE 8501

ENTRYPOINT ["streamlit", "run", "src/chatbot_frontend.py", "--server.port=8501", "--server.address=0.0.0.0"]