The example voting app files of docker in Github has missing DB and Redis files

After finishing the docker beginners and docker swarm course. I thought to work in my lab regarding all the topics with the example voting app. So, I navigated to the given link in Github. But, I don’t see the db and redis files there. Can anyone, please clear this?

Hi @praravindcloud ,
What kind of files are you looking for? Am i missing something?
I am able to see it’s written in the compose file.
Redis -

DB -