GetLabels return labels that should be applied to every object for given component in active application additional labels are used only for creating object if you are creating something use additional=true if you need labels to filter component then use additional=false.

GetSelector are supposed to be used for selection of resources which are a part of the given component.

ComponentLabel is a label key used to identify the component name.

ComponentTypeLabel is Kubernetes label that identifies the type of a component being used.

ComponentTypeVersion is a Kubernetes label that identifies the component version.