Dockerfile

FROM python:3.10-slim

# Ensure Streamlit writes to a writable directory
ENV HOME=/app
ENV STREAMLIT_CONFIG_DIR=/app/.streamlit

WORKDIR /app

# Install production dependencies only
COPY requirements.txt .
RUN pip install --upgrade pip && pip install --no-cache-dir -r requirements.txt

# Copy codebase
COPY . .

# Ensure config folder exists with correct permissions
RUN mkdir -p /app/.streamlit && chmod -R 777 /app/.streamlit

# Add minimal Streamlit config
RUN echo "\
[server]\n\
headless = true\n\
port = 8501\n\
address = \"0.0.0.0\"\n\
enableCORS = false\n\
enableXsrfProtection = false\n\
" > /app/.streamlit/config.toml

EXPOSE 8501

# Shell form CMD ensures log output compatibility on Spaces
CMD streamlit run app.py --server.port=8501 --server.address=0.0.0.0