Open-source alternatives to Dockerception

Buildstep uses Docker and Buildpacks to build applications like Heroku

docker-gc is a garbage collection tool for Docker hosts designed to reclaim disk space by automatically removing exited containers, unused images, and dangling volumes. It functions as a resource cleaner that optimizes host storage through the lifecycle management of orphaned or inactive container resources. The utility manages image retention by preserving a minimum number of the most recent images per repository while deleting older versions. It employs configurable grace periods to determine when images and containers become eligible for deletion and supports pattern-based exclusion to pre