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labelidentityimport_controller.go
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/
labelidentityimport_controller.go
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/*
Copyright 2022 Antrea Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package commonarea
import (
"context"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
"k8s.io/klog/v2"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/controller"
"sigs.k8s.io/controller-runtime/pkg/predicate"
multiclusterv1alpha1 "antrea.io/antrea/multicluster/apis/multicluster/v1alpha1"
"antrea.io/antrea/multicluster/controllers/multicluster/common"
)
// LabelIdentityResourceImportReconciler reconciles a LabelIdentity kind of ResourceImport object in the member cluster.
type LabelIdentityResourceImportReconciler struct {
client.Client
Scheme *runtime.Scheme
localClusterClient client.Client
localClusterID string
namespace string
remoteCommonArea RemoteCommonArea
}
func NewLabelIdentityResourceImportReconciler(client client.Client, scheme *runtime.Scheme, localClusterClient client.Client,
localClusterID string, namespace string, remoteCommonArea RemoteCommonArea) *LabelIdentityResourceImportReconciler {
return &LabelIdentityResourceImportReconciler{
Client: client,
Scheme: scheme,
localClusterClient: localClusterClient,
localClusterID: localClusterID,
namespace: namespace,
remoteCommonArea: remoteCommonArea,
}
}
func (r *LabelIdentityResourceImportReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
klog.V(2).InfoS("Reconciling LabelIdentity kind of ResourceImport", "resourceImport", req.NamespacedName)
var labelIdentityResImport multiclusterv1alpha1.ResourceImport
err := r.remoteCommonArea.Get(ctx, req.NamespacedName, &labelIdentityResImport)
if err != nil {
if !apierrors.IsNotFound(err) {
klog.ErrorS(err, "Unable to fetch LabelIdentity kind of ResourceImport", "resourceImport", req.NamespacedName)
return ctrl.Result{}, err
}
return r.handleLabelIdentityImpDelete(ctx, req.NamespacedName)
}
return r.handleLabelIdentityImpCreateOrUpdate(ctx, &labelIdentityResImport)
}
func (r *LabelIdentityResourceImportReconciler) handleLabelIdentityImpCreateOrUpdate(ctx context.Context,
labelResImp *multiclusterv1alpha1.ResourceImport) (ctrl.Result, error) {
labelIdentityName := types.NamespacedName{
Name: labelResImp.Name,
}
labelIdentity := &multiclusterv1alpha1.LabelIdentity{}
err := r.localClusterClient.Get(ctx, labelIdentityName, labelIdentity)
labelIdentityNotFound := apierrors.IsNotFound(err)
if err != nil && !labelIdentityNotFound {
return ctrl.Result{}, err
}
if labelIdentityNotFound {
newLabelIdentity := &multiclusterv1alpha1.LabelIdentity{
ObjectMeta: metav1.ObjectMeta{
Name: labelResImp.Name,
},
Spec: multiclusterv1alpha1.LabelIdentitySpec{
Label: labelResImp.Spec.LabelIdentity.Label,
ID: labelResImp.Spec.LabelIdentity.ID,
},
}
if err = r.localClusterClient.Create(ctx, newLabelIdentity, &client.CreateOptions{}); err != nil {
klog.ErrorS(err, "Failed to create LabelIdentity", "clusterID", r.localClusterID, "label", labelResImp.Spec.LabelIdentity.Label)
return ctrl.Result{}, err
}
} else if labelIdentity.Spec.ID != labelResImp.Spec.LabelIdentity.ID {
labelIdentity.Spec.ID = labelResImp.Spec.LabelIdentity.ID
if err = r.localClusterClient.Update(ctx, labelIdentity, &client.UpdateOptions{}); err != nil {
klog.ErrorS(err, "Failed to update LabelIdentity", "clusterID", r.localClusterID, "label", labelResImp.Spec.LabelIdentity.Label)
return ctrl.Result{}, err
}
}
return ctrl.Result{}, nil
}
func (r *LabelIdentityResourceImportReconciler) handleLabelIdentityImpDelete(ctx context.Context,
resImpName types.NamespacedName) (ctrl.Result, error) {
klog.V(2).InfoS("Deleting LabelIdentity corresponding to LabelIdentity kind of ResourceImport", "resourceImport", resImpName.String())
labelIdentity := &multiclusterv1alpha1.LabelIdentity{
ObjectMeta: metav1.ObjectMeta{
Name: resImpName.Name,
},
}
if err := r.localClusterClient.Delete(ctx, labelIdentity, &client.DeleteOptions{}); err != nil && !apierrors.IsNotFound(err) {
klog.ErrorS(err, "Failed to delete LabelIdentity", "clusterID", r.localClusterID, "labelIdentity", labelIdentity.Name)
return ctrl.Result{}, err
}
return ctrl.Result{}, nil
}
func (r *LabelIdentityResourceImportReconciler) SetupWithManager(mgr ctrl.Manager) error {
// Ignore status update event via GenerationChangedPredicate
generationPredicate := predicate.GenerationChangedPredicate{}
// Only register this controller to reconcile LabelIdentity kind of ResourceImport
labelIdentityResImportFilter := func(object client.Object) bool {
if resImport, ok := object.(*multiclusterv1alpha1.ResourceImport); ok {
return resImport.Spec.Kind == common.LabelIdentityKind
}
return false
}
labelIdentityResImportPredicate := predicate.NewPredicateFuncs(labelIdentityResImportFilter)
instance := predicate.And(generationPredicate, labelIdentityResImportPredicate)
return ctrl.NewControllerManagedBy(mgr).
For(&multiclusterv1alpha1.ResourceImport{}).
WithEventFilter(instance).
WithOptions(controller.Options{
MaxConcurrentReconciles: common.DefaultWorkerCount,
}).
Complete(r)
}