add venv

Dockerfile

@@ -11,7 +11,8 @@ RUN useradd -ms /bin/bash django
 RUN chown -R django .
 
 USER django
-RUN pip install -r requirements.txt --user
-RUN python manage.py collectstatic
+RUN python -m venv venv
+RUN venv/bin/pip install -r requirements.txt
+RUN venv/bin/python manage.py collectstatic
 
-CMD ["python -m gunicorn","-b",":8000", "-w", "4", "config.wsgi"]
+CMD ["venv/bin/gunicorn","-b",":8000", "-w", "4", "config.wsgi"]