karmada/pkg/util/label.go

44 lines
1.0 KiB
Go

package util
import (
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
)
// GetLabelValue retrieves the value via 'labelKey' if exist, otherwise returns an empty string.
func GetLabelValue(labels map[string]string, labelKey string) string {
if labels == nil {
return ""
}
return labels[labelKey]
}
// MergeLabel adds label for the given object.
func MergeLabel(obj *unstructured.Unstructured, labelKey string, labelValue string) {
labels := obj.GetLabels()
if labels == nil {
labels = make(map[string]string, 1)
}
labels[labelKey] = labelValue
obj.SetLabels(labels)
}
// RemoveLabel removes the label from the given object.
func RemoveLabel(obj *unstructured.Unstructured, labelKey string) {
labels := obj.GetLabels()
delete(labels, labelKey)
obj.SetLabels(labels)
}
// DedupeAndMergeLabels merges the new labels into exist labels.
func DedupeAndMergeLabels(existLabel, newLabel map[string]string) map[string]string {
if existLabel == nil {
return newLabel
}
for k, v := range newLabel {
existLabel[k] = v
}
return existLabel
}