Pack is a CLI tool maintained by the CNB project to support the use of buildpacks.
kpack is a Kubernetes-native platform that uses unprivileged Kubernetes primitives to perform buildpacks builds and keep application images up-to-date.
kpack is part of the Buildpacks Community organization.
CircleCI is a continuous integration and delivery platform.
The CNB project maintains an integration, called an orb, which allows users to run pack commands inside their pipelines.
Gitlab is a web-based DevOps platform. The Auto DevOps feature uses pack
to build applications prior to deploying them.
Project “Piper” is a set of ready-made continuous delivery pipelines for direct use in your project. It now also implements the CNB Platform spec as a step and makes it available in your Jenkins pipeline.
Project “Piper” is maintained by SAP.
Tekton is an open-source CI/CD system running on k8s.
The CNB project has created two reference “tasks” for performing buildpacks builds,
both of which use the lifecycle directly (i.e. they do not use pack).