Dockerfile

# 1. Start with an official Python base image
FROM python:3.10-slim

# <<< THIS IS THE PERMANENT FIX >>>
# As the ROOT user, create the /data directory and give ownership
# to the standard non-root user (user ID 1000), which the app will run as.
RUN mkdir -p /data && chown -R 1000:1000 /data

# 2. Set the working directory for the application code
WORKDIR /code

# 3. Copy and install requirements
COPY ./requirements.txt /code/requirements.txt
RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

# 4. Copy the application code
COPY ./main.py /code/

# 5. This command runs the server as the non-root user, which can now write to /data
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]