sinatra-template-app is a repository to be used as a template for new ruby applications with the basic functionalities of a web application.
Building the image
docker build -t template-app .
Running on port 4567. It will be available at http://0.0.0.0:4567 by the following command:
docker run -p 4567:4567 template-app
Reaching the http://0.0.0.0:4567/hello path we should see the text "Hello World".