Dockerfile

# Use Python 3.10-slim (More stable/compatible than 3.13 for OR-Tools)
FROM python:3.10-slim

# Set working directory
WORKDIR /app

# Install only the absolute necessities
# REMOVED: software-properties-common (this was causing your error)
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    git \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first (for caching)
COPY requirements.txt .

# Install Python dependencies
RUN pip3 install --no-cache-dir -r requirements.txt

# Copy ALL your application files (app.py, config.py, agents.py, utils.py)
COPY . .

# Open the port
EXPOSE 8501

# Healthcheck
HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health

# Run the app
ENTRYPOINT ["streamlit", "run", "app.py", "--server.port=8501", "--server.address=0.0.0.0"]