92 lines
3.2 KiB
Go
92 lines
3.2 KiB
Go
/*
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Copyright 2018 The Kubernetes 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 handler
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import (
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/client-go/util/workqueue"
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"sigs.k8s.io/controller-runtime/pkg/event"
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logf "sigs.k8s.io/controller-runtime/pkg/internal/log"
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"sigs.k8s.io/controller-runtime/pkg/reconcile"
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)
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var enqueueLog = logf.RuntimeLog.WithName("eventhandler").WithName("EnqueueRequestForObject")
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var _ EventHandler = &EnqueueRequestForObject{}
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// EnqueueRequestForObject enqueues a Request containing the Name and Namespace of the object that is the source of the Event.
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// (e.g. the created / deleted / updated objects Name and Namespace). handler.EnqueueRequestForObject is used by almost all
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// Controllers that have associated Resources (e.g. CRDs) to reconcile the associated Resource.
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type EnqueueRequestForObject struct{}
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// Create implements EventHandler
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func (e *EnqueueRequestForObject) Create(evt event.CreateEvent, q workqueue.RateLimitingInterface) {
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if evt.Object == nil {
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enqueueLog.Error(nil, "CreateEvent received with no metadata", "event", evt)
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return
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}
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q.Add(reconcile.Request{NamespacedName: types.NamespacedName{
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Name: evt.Object.GetName(),
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Namespace: evt.Object.GetNamespace(),
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}})
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}
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// Update implements EventHandler
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func (e *EnqueueRequestForObject) Update(evt event.UpdateEvent, q workqueue.RateLimitingInterface) {
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if evt.ObjectOld != nil {
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q.Add(reconcile.Request{NamespacedName: types.NamespacedName{
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Name: evt.ObjectOld.GetName(),
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Namespace: evt.ObjectOld.GetNamespace(),
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}})
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} else {
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enqueueLog.Error(nil, "UpdateEvent received with no old metadata", "event", evt)
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}
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if evt.ObjectNew != nil {
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q.Add(reconcile.Request{NamespacedName: types.NamespacedName{
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Name: evt.ObjectNew.GetName(),
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Namespace: evt.ObjectNew.GetNamespace(),
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}})
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} else {
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enqueueLog.Error(nil, "UpdateEvent received with no new metadata", "event", evt)
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}
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}
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// Delete implements EventHandler
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func (e *EnqueueRequestForObject) Delete(evt event.DeleteEvent, q workqueue.RateLimitingInterface) {
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if evt.Object == nil {
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enqueueLog.Error(nil, "DeleteEvent received with no metadata", "event", evt)
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return
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}
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q.Add(reconcile.Request{NamespacedName: types.NamespacedName{
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Name: evt.Object.GetName(),
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Namespace: evt.Object.GetNamespace(),
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}})
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}
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// Generic implements EventHandler
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func (e *EnqueueRequestForObject) Generic(evt event.GenericEvent, q workqueue.RateLimitingInterface) {
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if evt.Object == nil {
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enqueueLog.Error(nil, "GenericEvent received with no metadata", "event", evt)
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return
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}
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q.Add(reconcile.Request{NamespacedName: types.NamespacedName{
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Name: evt.Object.GetName(),
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Namespace: evt.Object.GetNamespace(),
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}})
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}
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