kubernetes/staging/src/k8s.io/kubectl/pkg/util/apply.go

var metadataAccessor …

// GetOriginalConfiguration retrieves the original configuration of the object
// from the annotation, or nil if no annotation was found.
func GetOriginalConfiguration(obj runtime.Object) ([]byte, error) { … }

// SetOriginalConfiguration sets the original configuration of the object
// as the annotation on the object for later use in computing a three way patch.
func setOriginalConfiguration(obj runtime.Object, original []byte) error { … }

// GetModifiedConfiguration retrieves the modified configuration of the object.
// If annotate is true, it embeds the result as an annotation in the modified
// configuration. If an object was read from the command input, it will use that
// version of the object. Otherwise, it will use the version from the server.
func GetModifiedConfiguration(obj runtime.Object, annotate bool, codec runtime.Encoder) ([]byte, error) { … }

// updateApplyAnnotation calls CreateApplyAnnotation if the last applied
// configuration annotation is already present. Otherwise, it does nothing.
func updateApplyAnnotation(obj runtime.Object, codec runtime.Encoder) error { … }

// CreateApplyAnnotation gets the modified configuration of the object,
// without embedding it again, and then sets it on the object as the annotation.
func CreateApplyAnnotation(obj runtime.Object, codec runtime.Encoder) error { … }

// CreateOrUpdateAnnotation creates the annotation used by
// kubectl apply only when createAnnotation is true
// Otherwise, only update the annotation when it already exists
func CreateOrUpdateAnnotation(createAnnotation bool, obj runtime.Object, codec runtime.Encoder) error { … }