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finalizers.go
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/
finalizers.go
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package controllers
import (
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
// ContainsFinalizer checks if a finalizer already exists.
func ContainsFinalizer(meta metav1.Object, finalizer string) bool {
if meta == nil {
return false
}
for _, f := range meta.GetFinalizers() {
if f == finalizer {
return true
}
}
return false
}
// SetFinalizer adds a finalizer if it doesn't exists.
func SetFinalizer(meta metav1.Object, finalizer string) {
if meta == nil {
return
}
if !ContainsFinalizer(meta, finalizer) {
meta.SetFinalizers(append(meta.GetFinalizers(), finalizer))
}
}
// RemoveFinalizer removes a finalizer if it exists.
func RemoveFinalizer(meta metav1.Object, finalizer string) {
if meta == nil {
return
}
new := make([]string, 0)
for _, f := range meta.GetFinalizers() {
if f != finalizer {
new = append(new, f)
}
}
meta.SetFinalizers(new)
}