FROM python:3.13.5-slim-bullseye #FROM python:3.9.9-bullseye # Build the image also using the other FROM line, the difference is in the content and size of the image, # COPY will place the files inside this directory WORKDIR /usr/src/app # This value has to match the value on line 21 EXPOSE 8000 COPY requirements.txt . # Install the required python packages RUN pip install --no-cache-dir -r requirements.txt # Add the python app to the image COPY app.py . # The next line says "app:api" and not "app:app" ! CMD ["uvicorn", "app:api", "--host", "0.0.0.0", "--port", "8000"]