fix for duplicate files being created.

entrypoint.sh

@@ -0,0 +1,7 @@
+wait-for-it.sh database:5432
+
+python manage.py migrate --settings=cbreader.settings.base
+
+python manage.py collectstatic --settings=cbreader.settings.base  --noinput
+
+gunicorn --workers 3 --bind 0.0.0.0:8000 cbreader.wsgi:application