Basic Troubleshooting with Docker and Ruby on Rails

I just started volunteering with the Open Food Network to re-familiarize myself with Ruby on Rails. They are an open source, non-profit, online marketplace for food stores. They provide software to link up independent farmers with hubs and distributors and it all runs on Ruby on Rails.Like a lot of web apps, they have a Docker setup to make things easier. Docker helps eliminate the "it works on my computer" problem that can plague other development efforts when certain software packages are not installed, or the wrong version of them is installed.