This section provides an overview of the Cloud Native Buildpack API specification. Most buildpack users won’t need this information unless they are writing a buildpack or a platform that supports buildpacks.

Reproducible Builds

The Cloud Native Buildpacks project aims to create “Reproducible Builds” of container images. For image creation commands (builder create, buildpack package, build) pack creates container images in a reproducible fashion. “Reproducible” is hard to define but we’ll do so by example and with a few caveats: