Minio - Minio is an open-source minimal cloud storage server.
GlusterFS - GlusterFS is a scale-out network-attached storage file system.
Sidekiq - Sidekiq is a simple, efficient framework for background job processing in Ruby
rkt - App Container runtime
delayed_job - Database based asynchronous priority queue system -- Extracted from Shopify - collectiveidea/delayed_job
Apache Karaf - Apache Karaf is a lightweight, modern and polymorphic container powered by OSGi.