kruise/pkg/controller/nodeimage/nodeimage_event_handler.go

113 lines
3.5 KiB
Go

/*
Copyright 2021 The Kruise 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 nodeimage
import (
"context"
"reflect"
appsv1alpha1 "github.com/openkruise/kruise/apis/apps/v1alpha1"
nodeimagesutil "github.com/openkruise/kruise/pkg/util/nodeimages"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/types"
"k8s.io/client-go/util/workqueue"
"k8s.io/klog"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/event"
"sigs.k8s.io/controller-runtime/pkg/handler"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
)
type nodeHandler struct {
client.Reader
}
var _ handler.EventHandler = &nodeHandler{}
func (e *nodeHandler) Create(evt event.CreateEvent, q workqueue.RateLimitingInterface) {
node := evt.Object.(*v1.Node)
if node.DeletionTimestamp != nil {
e.nodeDelete(node, q)
return
}
e.nodeCreateOrUpdate(node, q)
}
func (e *nodeHandler) Generic(evt event.GenericEvent, q workqueue.RateLimitingInterface) {
}
func (e *nodeHandler) Update(evt event.UpdateEvent, q workqueue.RateLimitingInterface) {
node := evt.ObjectNew.(*v1.Node)
if node.DeletionTimestamp != nil {
e.nodeDelete(node, q)
} else {
e.nodeCreateOrUpdate(node, q)
}
}
func (e *nodeHandler) Delete(evt event.DeleteEvent, q workqueue.RateLimitingInterface) {
node := evt.Object.(*v1.Node)
e.nodeDelete(node, q)
}
func (e *nodeHandler) nodeCreateOrUpdate(node *v1.Node, q workqueue.RateLimitingInterface) {
nodeImage := &appsv1alpha1.NodeImage{}
namespacedName := types.NamespacedName{Name: node.Name}
if err := e.Get(context.TODO(), namespacedName, nodeImage); err != nil {
klog.Infof("Node create event for nodeimage %v", node.Name)
q.Add(reconcile.Request{NamespacedName: namespacedName})
return
}
if reflect.DeepEqual(node.Labels, nodeImage.Labels) {
return
}
klog.Infof("Node update labels for nodeimage %v", node.Name)
q.Add(reconcile.Request{NamespacedName: namespacedName})
}
func (e *nodeHandler) nodeDelete(node *v1.Node, q workqueue.RateLimitingInterface) {
nodeImage := &appsv1alpha1.NodeImage{}
namespacedName := types.NamespacedName{Name: node.Name}
if err := e.Get(context.TODO(), namespacedName, nodeImage); errors.IsNotFound(err) {
return
}
klog.Infof("Node delete event for nodeimage %v", node.Name)
q.Add(reconcile.Request{NamespacedName: namespacedName})
}
type imagePullJobHandler struct {
client.Reader
}
func (e *imagePullJobHandler) Create(evt event.CreateEvent, q workqueue.RateLimitingInterface) {
}
func (e *imagePullJobHandler) Generic(evt event.GenericEvent, q workqueue.RateLimitingInterface) {
}
func (e *imagePullJobHandler) Update(evt event.UpdateEvent, q workqueue.RateLimitingInterface) {
}
func (e *imagePullJobHandler) Delete(evt event.DeleteEvent, q workqueue.RateLimitingInterface) {
job := evt.Object.(*appsv1alpha1.ImagePullJob)
nodeImageNames := nodeimagesutil.PopCachedNodeImagesForJob(job)
for _, name := range nodeImageNames {
q.Add(reconcile.Request{NamespacedName: types.NamespacedName{Name: name}})
}
}