The system must have a docker demon running. More here: download docker.
Run:
docker-compose up --build
This command will take by default the docker-compose.yml file in the repo, build the images and start the containers.
It will start a nodejs application at http://localhost:3000 and mongodb database already populated with some random users.
It is possible to access the database via console in the following way:
mongo
use stagecast
You can look for users:
db.users.find(); // get all users
db.users.find({email: "email@email.com"}) // get a specific user