This is an example to dockerize ruby apps with minimal configuration. After running this app you will be able to use docker to boot your app.
To run this app you will need to install Docker on your machine and clone this repository.
And then execute:
$ cd <repo_name>
$ docker build -t <tag_name> . (Note the ".")
$ docker run -p 3000:3000 <tag_name>
Open your browser and go to localhost:3000