// FindLabelsInSet gets as many key/value pairs as possible out of a label set.
func FindLabelsInSet(labelsToKeep []string, selector labels.Set) map[string]string {
aL := make(map[string]string)
for _, l := range labelsToKeep {
if selector.Has(l) {
aL[l] = selector.Get(l)
}
}
return aL
}
// AddUnsetLabelsToMap backfills missing values with values we find in a map.
func AddUnsetLabelsToMap(aL map[string]string, labelsToAdd []string, labelSet labels.Set) {
for _, l := range labelsToAdd {
// if the label is already there, dont overwrite it.
if _, exists := aL[l]; exists {
continue
}
// otherwise, backfill this label.
if labelSet.Has(l) {
aL[l] = labelSet.Get(l)
}
}
}