thapakazi / jruby

CloudFactory development is heavily invested in jruby based micro/nano/macro/... services hence it makes sense to have base docker image at that ground.

Phusion base-image is already a powerful docker base image. It sparked some discussion within container/docker pundits by allowing the capability of running multiple processes within a container. README from official website/repository is filled with very thorough information but just in case you are skimming over, here's the highlights

• INIT process /sbin/my_init which read from centralized environment variables directory /etc/container_environment. It also passes env vars correctly to forked processes.
• logrotate that compresses and rotates log files
• CRON for scheduled task inside containers
• RUNIT as a process supervisor.

How is it different than official jruby docker image?

• It is based on phusion-base image so all above features comes with it
• jruby is installed and managed via ruby-install. ruby-install dynamically decides the required dependencies for jruby being installed.

All the Dockerfiles follow best practices too.