kubernetes/vendor/sigs.k8s.io/kustomize/api/krusty/kustomizer.go

type Kustomizer …

// MakeKustomizer returns an instance of Kustomizer.
func MakeKustomizer(o *Options) *Kustomizer { … }

// Run performs a kustomization.
//
// It reads given path from the given file system, interprets it as
// a kustomization.yaml file, perform the kustomization it represents,
// and return the resulting resources.
//
// Any files referenced by the kustomization must be present on the
// filesystem.  One may call Run any number of times, on any number
// of internal paths (e.g. the filesystem may contain multiple overlays,
// and Run can be called on each of them).
func (b *Kustomizer) Run(
	fSys filesys.FileSystem, path string) (resmap.ResMap, error) { … }

func (b *Kustomizer) applySortOrder(m resmap.ResMap, kt *target.KustTarget) error { … }