mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-28 07:50:19 +00:00
dbbca6ebf8
update controller-runtime to latest release. Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
114 lines
4.2 KiB
Go
114 lines
4.2 KiB
Go
/*
|
|
Copyright 2018 The Kubernetes 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 handler
|
|
|
|
import (
|
|
"context"
|
|
"reflect"
|
|
|
|
"k8s.io/apimachinery/pkg/types"
|
|
"k8s.io/client-go/util/workqueue"
|
|
"sigs.k8s.io/controller-runtime/pkg/client"
|
|
"sigs.k8s.io/controller-runtime/pkg/event"
|
|
logf "sigs.k8s.io/controller-runtime/pkg/internal/log"
|
|
"sigs.k8s.io/controller-runtime/pkg/reconcile"
|
|
)
|
|
|
|
var enqueueLog = logf.RuntimeLog.WithName("eventhandler").WithName("EnqueueRequestForObject")
|
|
|
|
type empty struct{}
|
|
|
|
var _ EventHandler = &EnqueueRequestForObject{}
|
|
|
|
// EnqueueRequestForObject enqueues a Request containing the Name and Namespace of the object that is the source of the Event.
|
|
// (e.g. the created / deleted / updated objects Name and Namespace). handler.EnqueueRequestForObject is used by almost all
|
|
// Controllers that have associated Resources (e.g. CRDs) to reconcile the associated Resource.
|
|
type EnqueueRequestForObject = TypedEnqueueRequestForObject[client.Object]
|
|
|
|
// TypedEnqueueRequestForObject enqueues a Request containing the Name and Namespace of the object that is the source of the Event.
|
|
// (e.g. the created / deleted / updated objects Name and Namespace). handler.TypedEnqueueRequestForObject is used by almost all
|
|
// Controllers that have associated Resources (e.g. CRDs) to reconcile the associated Resource.
|
|
//
|
|
// TypedEnqueueRequestForObject is experimental and subject to future change.
|
|
type TypedEnqueueRequestForObject[object client.Object] struct{}
|
|
|
|
// Create implements EventHandler.
|
|
func (e *TypedEnqueueRequestForObject[T]) Create(ctx context.Context, evt event.TypedCreateEvent[T], q workqueue.TypedRateLimitingInterface[reconcile.Request]) {
|
|
if isNil(evt.Object) {
|
|
enqueueLog.Error(nil, "CreateEvent received with no metadata", "event", evt)
|
|
return
|
|
}
|
|
q.Add(reconcile.Request{NamespacedName: types.NamespacedName{
|
|
Name: evt.Object.GetName(),
|
|
Namespace: evt.Object.GetNamespace(),
|
|
}})
|
|
}
|
|
|
|
// Update implements EventHandler.
|
|
func (e *TypedEnqueueRequestForObject[T]) Update(ctx context.Context, evt event.TypedUpdateEvent[T], q workqueue.TypedRateLimitingInterface[reconcile.Request]) {
|
|
switch {
|
|
case !isNil(evt.ObjectNew):
|
|
q.Add(reconcile.Request{NamespacedName: types.NamespacedName{
|
|
Name: evt.ObjectNew.GetName(),
|
|
Namespace: evt.ObjectNew.GetNamespace(),
|
|
}})
|
|
case !isNil(evt.ObjectOld):
|
|
q.Add(reconcile.Request{NamespacedName: types.NamespacedName{
|
|
Name: evt.ObjectOld.GetName(),
|
|
Namespace: evt.ObjectOld.GetNamespace(),
|
|
}})
|
|
default:
|
|
enqueueLog.Error(nil, "UpdateEvent received with no metadata", "event", evt)
|
|
}
|
|
}
|
|
|
|
// Delete implements EventHandler.
|
|
func (e *TypedEnqueueRequestForObject[T]) Delete(ctx context.Context, evt event.TypedDeleteEvent[T], q workqueue.TypedRateLimitingInterface[reconcile.Request]) {
|
|
if isNil(evt.Object) {
|
|
enqueueLog.Error(nil, "DeleteEvent received with no metadata", "event", evt)
|
|
return
|
|
}
|
|
q.Add(reconcile.Request{NamespacedName: types.NamespacedName{
|
|
Name: evt.Object.GetName(),
|
|
Namespace: evt.Object.GetNamespace(),
|
|
}})
|
|
}
|
|
|
|
// Generic implements EventHandler.
|
|
func (e *TypedEnqueueRequestForObject[T]) Generic(ctx context.Context, evt event.TypedGenericEvent[T], q workqueue.TypedRateLimitingInterface[reconcile.Request]) {
|
|
if isNil(evt.Object) {
|
|
enqueueLog.Error(nil, "GenericEvent received with no metadata", "event", evt)
|
|
return
|
|
}
|
|
q.Add(reconcile.Request{NamespacedName: types.NamespacedName{
|
|
Name: evt.Object.GetName(),
|
|
Namespace: evt.Object.GetNamespace(),
|
|
}})
|
|
}
|
|
|
|
func isNil(arg any) bool {
|
|
if v := reflect.ValueOf(arg); !v.IsValid() || ((v.Kind() == reflect.Ptr ||
|
|
v.Kind() == reflect.Interface ||
|
|
v.Kind() == reflect.Slice ||
|
|
v.Kind() == reflect.Map ||
|
|
v.Kind() == reflect.Chan ||
|
|
v.Kind() == reflect.Func) && v.IsNil()) {
|
|
return true
|
|
}
|
|
return false
|
|
}
|