BuildDockerfiles parses a set of one or more Dockerfiles (which may be URLs), creates one or more new Executors, and then runs Prepare/Execute/Commit/Delete over the entire set of instructions.

InitReexec is a wrapper for buildah.InitReexec().

Executor is a buildah-based implementation of the imagebuilder.Executor interface.

StageExecutor bundles up what we need to know when executing one stage of a (possibly multi-stage) build.

Mount is a mountpoint for the build container.