Thanks Jay for your kind explanation! But I still get confused. From Falco’s Tutorial I notice that it is easy to use aws’s rds and elasticache without the need to configure web-only.yml, data.yml and redis.yml. The Falco’s Tutorial only edits the parameters in app.yml. But mcdanlj’s Tutorial is different. Is it because his forum is too large? Therefore he can not use the simple way which Falco provide?