chore: Automate collectstatic and migrate commands (#427)

* chore: Automate management commands on init

* chore: Run collectstatic only on init

* chore: Provide absolute path to manage.py

* docs: Mention what management command to run (collectstatic)

* chore: Include static files in Docker image

* chore: Run migrate command on init

docker/Dockerfile

@@ -138,6 +138,15 @@ EOF
 COPY docker/nginx-sandbox.conf /etc/nginx/sites-enabled/default
 COPY docker/supervisord-sandbox.conf /app/supervisord.conf
 
+COPY docker/init.sh /app/init.sh
+RUN chmod +x /app/init.sh
+
 RUN mkdir -p /app/media
 
-CMD ["/usr/bin/supervisord", "-c", "/app/supervisord.conf"]
+# Configure environment variables (each with a placeholder) required
+# to bootstrap Django, so that collectstatic can run successfully
+RUN APP_SECRET_KEY="abcdef" \
+    DATABASE_URL="postgresql://userspec@hostspec/dbname?paramspec" \
+    python /app/manage.py collectstatic --no-input
+
+CMD ["./init.sh"]

docker/init.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+echo "Running migrate..."
+python /app/manage.py migrate
+
+echo "Starting supervisor..."
+/usr/bin/supervisord -c /app/supervisord.conf