add refined dockerfile with gunicorn

Dockerfile

@@ -1,4 +1,23 @@
 FROM python:3.8-alpine
 WORKDIR /app
-ADD . /app
+
+# set env
+ENV PYTHONDONTWRITEBYTECODE 1
+ENV PYTHONUNBUFFERED 1
+EXPOSE 8000
+
+# psycopg2 dependencies
+RUN apk update \
+    && apk add postgresql-dev gcc python3-dev musl-dev
+
+# install dependencies
+ADD ./requirements.txt .
 RUN pip install -r requirements.txt
+
+# add user
+RUN addgroup -S portier && adduser -S portier -G portier
+
+# add code
+ADD --chown=portier:portier . /app
+
+CMD ["/app/start.sh", "migrate_start"]

requirements.txt

@@ -1,2 +1,3 @@
 django>=3.0
 celery>=4.4
+gunicorn>=20

start.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+migrate() {
+  python manage.py makemigrations
+  python manage.py migrate
+}
+
+case $1 in
+  "create_superuser" )
+    python manage.py createsuperuser --no-input --username "${ADMIN_USER:-admin}" --email "${ADMIN_EMAIL:-post@chaoswest.tv}"
+    ;;
+  "migrate_start" )
+    migrate
+    gunicorn -w 4 --bind 0.0.0.0:${EXPOSE_PORT:-8000} portier.wsgi
+    ;;
+  "only_start" )
+    gunicorn -w 4 --bind 0.0.0.0:${EXPOSE_PORT:-8000} portier.wsgi
+    ;;
+esac