Update Dockerfile

Dockerfile

@@ -1,13 +1,15 @@
-FROM python:3.9
+FROM python:3.12
 
 RUN useradd -m -u 1000 user
-USER user
-ENV PATH="/home/user/.local/bin:$PATH"
 
 WORKDIR /app
 
 COPY --chown=user ./requirements.txt requirements.txt
+
 RUN pip install --no-cache-dir --upgrade -r requirements.txt
 
 COPY --chown=user . /app
-CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]
+
+EXPOSE 7860
+
+CMD ["gunicorn", "-w", "4", "-b", "0.0.0.0:7860", "app:server"]