Files
open-cluster-management/pkg/work/hub/manager.go
2023-08-21 00:03:58 -02:30

75 lines
2.8 KiB
Go

package hub
import (
"context"
"time"
"github.com/openshift/library-go/pkg/controller/controllercmd"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
clusterclientset "open-cluster-management.io/api/client/cluster/clientset/versioned"
clusterinformers "open-cluster-management.io/api/client/cluster/informers/externalversions"
workclientset "open-cluster-management.io/api/client/work/clientset/versioned"
workinformers "open-cluster-management.io/api/client/work/informers/externalversions"
"open-cluster-management.io/ocm/pkg/work/hub/controllers/manifestworkreplicasetcontroller"
)
// RunWorkHubManager starts the controllers on hub.
func RunWorkHubManager(ctx context.Context, controllerContext *controllercmd.ControllerContext) error {
hubWorkClient, err := workclientset.NewForConfig(controllerContext.KubeConfig)
if err != nil {
return err
}
hubClusterClient, err := clusterclientset.NewForConfig(controllerContext.KubeConfig)
if err != nil {
return err
}
clusterInformerFactory := clusterinformers.NewSharedInformerFactory(hubClusterClient, 30*time.Minute)
// we need a separated filtered manifestwork informers so we only watch the manifestworks that manifestworkreplicaset cares.
// This could reduce a lot of memory consumptions
manifestWorkInformerFactory := workinformers.NewSharedInformerFactoryWithOptions(hubWorkClient, 30*time.Minute, workinformers.WithTweakListOptions(
func(listOptions *metav1.ListOptions) {
selector := &metav1.LabelSelector{
MatchExpressions: []metav1.LabelSelectorRequirement{
{
Key: manifestworkreplicasetcontroller.ManifestWorkReplicaSetControllerNameLabelKey,
Operator: metav1.LabelSelectorOpExists,
},
},
}
listOptions.LabelSelector = metav1.FormatLabelSelector(selector)
},
))
return RunControllerManagerWithInformers(ctx, controllerContext, hubWorkClient, manifestWorkInformerFactory, clusterInformerFactory)
}
func RunControllerManagerWithInformers(
ctx context.Context,
controllerContext *controllercmd.ControllerContext,
hubWorkClient workclientset.Interface,
manifestWorkInformers workinformers.SharedInformerFactory,
clusterInformers clusterinformers.SharedInformerFactory,
) error {
workInformerFactory := workinformers.NewSharedInformerFactory(hubWorkClient, 30*time.Minute)
manifestWorkReplicaSetController := manifestworkreplicasetcontroller.NewManifestWorkReplicaSetController(
controllerContext.EventRecorder,
hubWorkClient,
workInformerFactory.Work().V1alpha1().ManifestWorkReplicaSets(),
manifestWorkInformers.Work().V1().ManifestWorks(),
clusterInformers.Cluster().V1beta1().Placements(),
clusterInformers.Cluster().V1beta1().PlacementDecisions(),
)
go clusterInformers.Start(ctx.Done())
go workInformerFactory.Start(ctx.Done())
go manifestWorkInformers.Start(ctx.Done())
go manifestWorkReplicaSetController.Run(ctx, 5)
<-ctx.Done()
return nil
}