circuit_switch is a gem for 'difficult' application. This switch helps to make changes easier and deploy safely.
Simple tasks to provision and tear_down containers / instances and virtual machines.
Quickly set up a Ruby on Rails app on Nanobox, the ideal platform for developers. With Nanobox, Rails app developers can set up instant, isolated development environments that can be shared among team members. Rails apps created using Nanobox can be automatically deployed to AWS, Azure, Google Cloud, and other cloud hosts without the need for devops. Once in production, your Rails app can be monitored, scaled, and managed using our tool suite for live apps.
This Ruby gem enhances the capabilities of Sidekiq, Sidekiq Pro, and Sidekiq Enterprise by adding essential utilities.
Job groups for delayed_job - http://www.salsify.com/blog/adding-job-groups-to-delayed-job-in-rails
Africa Ruby Community(ARC) Platform
Puppet module for managing Nomad