add entry point for release docker

docker/scripts/entry-point.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+set -e
+
+echo "Migrating DB..."
+./mapg db:migrate
+
+echo "Installing crontab..."
+/usr/bin/crontab docker/scripts/cron
+
+set +e
+
+/usr/sbin/cron -f &
+/usr/sbin/php-fpm7.4 -F &
+/usr/sbin/nginx -g 'daemon off;' &
+/usr/bin/node multi &
+
+wait -n
+
+exit $?