Perfect the entrypoint

Previously unexplored entrypoint technology has been explored. Now we
can run commands after the entrypoint completes with the magical "$@"
variable.

Dockerfile

@@ -1,4 +1,6 @@
-FROM python:3.8.2
+FROM python:3
+
+USER root
 
 WORKDIR /app
 COPY config config
@@ -8,10 +10,13 @@ COPY manage.py manage.py
 COPY requirements.txt requirements.txt
 RUN pip install -r requirements.txt
 
+COPY scripts scripts
+RUN chmod +x scripts/*
+ENTRYPOINT ["scripts/entrypoint.sh"]
+
 RUN useradd -ms /bin/bash django
 RUN chown -R django .
-
 USER django
-RUN python manage.py collectstatic
+RUN python manage.py collectstatic --no-input
 
-CMD ["gunicorn","-b",":8000", "-w", "4", "config.wsgi"]
+CMD ["scripts/cmd.sh"]