Things you may want to cover:

In source directory run following commands:

docker-compose up

After while run following (when mysql up and running):

docker-compose exec app bin/rails db:migrate RAILS_ENV=development
docker-compose exec app bin/rails db:seed RAILS_ENV=development

If any problems with app start, then run this command:

docker-compose build app    

Navigate in browser https://0.0.0.0:3000;

• Ruby version 2.5.0

• System dependencies

  build-essential libpq-dev nodejs mysql-server mysql-client imagemagick

• Configuration

• Database creation

  Change database configuration in: ./config/database.yml

• Database initialization

  bin/rails db:migrate RAILS_ENV=development