Reversed default port change and added venv

Dockerfile

@@ -3,6 +3,10 @@
 
 FROM python:3.11
 
+ENV VIRTUAL_ENV=/opt/venv
+RUN python -m venv $VIRTUAL_ENV
+ENV PATH="$VIRTUAL_ENV/bin:$PATH"
+
 # The two following lines are requirements for the Dev Mode to be functional
 # Learn more about the Dev Mode at https://huggingface.co/dev-mode-explorers
 RUN useradd -m -u 1000 user
@@ -17,4 +21,4 @@ RUN pip install --no-cache-dir --upgrade -r requirements.txt
 
 COPY --chown=user . /app
 #RUN /usr/bin/sqlite3 /app/database/source_cache.sqlite3
-CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]