129 lines
4.9 KiB
Go
129 lines
4.9 KiB
Go
/*
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Copyright 2023 The Karmada Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package status
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import (
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"context"
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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"k8s.io/apimachinery/pkg/api/meta"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/client-go/dynamic"
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"k8s.io/client-go/tools/record"
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"k8s.io/klog/v2"
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controllerruntime "sigs.k8s.io/controller-runtime"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"sigs.k8s.io/controller-runtime/pkg/controller"
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"sigs.k8s.io/controller-runtime/pkg/handler"
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"sigs.k8s.io/controller-runtime/pkg/reconcile"
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workv1alpha1 "github.com/karmada-io/karmada/pkg/apis/work/v1alpha1"
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workv1alpha2 "github.com/karmada-io/karmada/pkg/apis/work/v1alpha2"
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"github.com/karmada-io/karmada/pkg/resourceinterpreter"
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"github.com/karmada-io/karmada/pkg/sharedcli/ratelimiterflag"
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"github.com/karmada-io/karmada/pkg/util/fedinformer/genericmanager"
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"github.com/karmada-io/karmada/pkg/util/helper"
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)
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// RBStatusControllerName is the controller name that will be used when reporting events and metrics.
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const RBStatusControllerName = "resource-binding-status-controller"
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// RBStatusController is to sync status of ResourceBinding
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// and aggregate status to the resource template.
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type RBStatusController struct {
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client.Client // used to operate ResourceBinding resources.
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DynamicClient dynamic.Interface // used to fetch arbitrary resources from api server.
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InformerManager genericmanager.SingleClusterInformerManager // used to fetch arbitrary resources from cache.
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ResourceInterpreter resourceinterpreter.ResourceInterpreter
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EventRecorder record.EventRecorder
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RESTMapper meta.RESTMapper
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RateLimiterOptions ratelimiterflag.Options
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}
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// Reconcile performs a full reconciliation for the object referred to by the Request.
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// The Controller will requeue the Request to be processed again if an error is non-nil or
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// Result.Requeue is true, otherwise upon completion it will remove the work from the queue.
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func (c *RBStatusController) Reconcile(ctx context.Context, req controllerruntime.Request) (controllerruntime.Result, error) {
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klog.V(4).Infof("Reconciling ResourceBinding %s.", req.NamespacedName.String())
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binding := &workv1alpha2.ResourceBinding{}
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if err := c.Client.Get(ctx, req.NamespacedName, binding); err != nil {
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// The rb no longer exist, in which case we stop processing.
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if apierrors.IsNotFound(err) {
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return controllerruntime.Result{}, nil
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}
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return controllerruntime.Result{}, err
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}
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// The rb is being deleted, in which case we stop processing.
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if !binding.DeletionTimestamp.IsZero() {
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return controllerruntime.Result{}, nil
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}
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err := c.syncBindingStatus(ctx, binding)
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if err != nil {
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return controllerruntime.Result{}, err
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}
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return controllerruntime.Result{}, nil
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}
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// SetupWithManager creates a controller and register to controller manager.
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func (c *RBStatusController) SetupWithManager(mgr controllerruntime.Manager) error {
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workMapFunc := handler.MapFunc(
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func(_ context.Context, workObj client.Object) []reconcile.Request {
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var requests []reconcile.Request
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annotations := workObj.GetAnnotations()
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namespace, nsExist := annotations[workv1alpha2.ResourceBindingNamespaceAnnotationKey]
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name, nameExist := annotations[workv1alpha2.ResourceBindingNameAnnotationKey]
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if nsExist && nameExist {
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requests = append(requests, reconcile.Request{
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NamespacedName: types.NamespacedName{
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Namespace: namespace,
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Name: name,
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},
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})
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}
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return requests
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})
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return controllerruntime.NewControllerManagedBy(mgr).
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Named(RBStatusControllerName).
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For(&workv1alpha2.ResourceBinding{}, bindingPredicateFn).
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Watches(&workv1alpha1.Work{}, handler.EnqueueRequestsFromMapFunc(workMapFunc), workPredicateFn).
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WithOptions(controller.Options{RateLimiter: ratelimiterflag.DefaultControllerRateLimiter(c.RateLimiterOptions)}).
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Complete(c)
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}
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func (c *RBStatusController) syncBindingStatus(ctx context.Context, binding *workv1alpha2.ResourceBinding) error {
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err := helper.AggregateResourceBindingWorkStatus(ctx, c.Client, binding, c.EventRecorder)
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if err != nil {
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klog.Errorf("Failed to aggregate workStatus to resourceBinding(%s/%s), Error: %v",
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binding.Namespace, binding.Name, err)
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return err
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}
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err = updateResourceStatus(ctx, c.DynamicClient, c.RESTMapper, c.ResourceInterpreter, c.EventRecorder, binding.Spec.Resource, binding.Status)
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if err != nil {
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return err
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}
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return nil
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}
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