# Step 1: Start from an official Python base image FROM python:3.11-slim # Step 2: Set the build-time working directory and copy code WORKDIR /app COPY requirements.txt . RUN pip install --no-cache-dir -r requirements.txt COPY . . # Step 3: Build the data artifact (the vectorstore) RUN python create_vectorstore.py # Step 4: Set the RUNTIME working directory to a writable location WORKDIR /tmp # Step 5: Expose the port EXPOSE 8000 # Step 6: Define the command to run, using an absolute path to the script CMD ["chainlit", "run", "/app/app.py", "--host", "0.0.0.0", "--port", "8000"]