Files
open-cluster-management/pkg/work/spoke/controllers/finalizercontroller/add_finalizer_controller.go
2023-06-28 15:59:19 +02:00

75 lines
2.7 KiB
Go

package finalizercontroller
import (
"context"
"github.com/openshift/library-go/pkg/controller/factory"
"github.com/openshift/library-go/pkg/operator/events"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/klog/v2"
workv1client "open-cluster-management.io/api/client/work/clientset/versioned/typed/work/v1"
workinformer "open-cluster-management.io/api/client/work/informers/externalversions/work/v1"
worklister "open-cluster-management.io/api/client/work/listers/work/v1"
workapiv1 "open-cluster-management.io/api/work/v1"
"open-cluster-management.io/ocm/pkg/common/patcher"
"open-cluster-management.io/ocm/pkg/common/queue"
"open-cluster-management.io/ocm/pkg/work/spoke/controllers"
)
// AddFinalizerController is to add the cluster.open-cluster-management.io/manifest-work-cleanup finalizer to manifestworks.
type AddFinalizerController struct {
patcher patcher.Patcher[*workapiv1.ManifestWork, workapiv1.ManifestWorkSpec, workapiv1.ManifestWorkStatus]
manifestWorkLister worklister.ManifestWorkNamespaceLister
}
// NewAddFinalizerController returns a ManifestWorkController
func NewAddFinalizerController(
recorder events.Recorder,
manifestWorkClient workv1client.ManifestWorkInterface,
manifestWorkInformer workinformer.ManifestWorkInformer,
manifestWorkLister worklister.ManifestWorkNamespaceLister,
) factory.Controller {
controller := &AddFinalizerController{
patcher: patcher.NewPatcher[
*workapiv1.ManifestWork, workapiv1.ManifestWorkSpec, workapiv1.ManifestWorkStatus](
manifestWorkClient),
manifestWorkLister: manifestWorkLister,
}
return factory.New().
WithInformersQueueKeysFunc(queue.QueueKeyByMetaName, manifestWorkInformer.Informer()).
WithSync(controller.sync).ToController("ManifestWorkAddFinalizerController", recorder)
}
func (m *AddFinalizerController) sync(ctx context.Context, controllerContext factory.SyncContext) error {
manifestWorkName := controllerContext.QueueKey()
klog.V(4).Infof("Reconciling ManifestWork %q", manifestWorkName)
manifestWork, err := m.manifestWorkLister.Get(manifestWorkName)
if errors.IsNotFound(err) {
// work not found, could have been deleted, do nothing.
return nil
}
if err != nil {
return err
}
return m.syncManifestWork(ctx, manifestWork)
}
func (m *AddFinalizerController) syncManifestWork(ctx context.Context, originalManifestWork *workapiv1.ManifestWork) error {
manifestWork := originalManifestWork.DeepCopy()
// don't add finalizers to instances that are deleted
if !manifestWork.DeletionTimestamp.IsZero() {
return nil
}
// if this conflicts, we'll simply try again later
_, err := m.patcher.AddFinalizer(ctx, manifestWork, controllers.ManifestWorkFinalizer)
return err
}