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eventhandler_controllerinstallation.go
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eventhandler_controllerinstallation.go
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// Copyright (c) 2021 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// 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 graph
import (
"context"
"time"
gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1"
toolscache "k8s.io/client-go/tools/cache"
"sigs.k8s.io/controller-runtime/pkg/cache"
)
func (g *graph) setupControllerInstallationWatch(_ context.Context, informer cache.Informer) {
informer.AddEventHandler(toolscache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
controllerInstallation, ok := obj.(*gardencorev1beta1.ControllerInstallation)
if !ok {
return
}
g.handleControllerInstallationCreateOrUpdate(controllerInstallation)
},
UpdateFunc: func(oldObj, newObj interface{}) {
oldControllerInstallation, ok := oldObj.(*gardencorev1beta1.ControllerInstallation)
if !ok {
return
}
newControllerInstallation, ok := newObj.(*gardencorev1beta1.ControllerInstallation)
if !ok {
return
}
var oldDeploymentRef string
if oldControllerInstallation.Spec.DeploymentRef != nil {
oldDeploymentRef = oldControllerInstallation.Spec.DeploymentRef.Name
}
var newDeploymentRef string
if newControllerInstallation.Spec.DeploymentRef != nil {
newDeploymentRef = newControllerInstallation.Spec.DeploymentRef.Name
}
if oldControllerInstallation.Spec.SeedRef.Name != newControllerInstallation.Spec.SeedRef.Name ||
oldControllerInstallation.Spec.RegistrationRef.Name != newControllerInstallation.Spec.RegistrationRef.Name ||
oldDeploymentRef != newDeploymentRef {
g.handleControllerInstallationCreateOrUpdate(newControllerInstallation)
}
},
DeleteFunc: func(obj interface{}) {
if tombstone, ok := obj.(toolscache.DeletedFinalStateUnknown); ok {
obj = tombstone.Obj
}
controllerInstallation, ok := obj.(*gardencorev1beta1.ControllerInstallation)
if !ok {
return
}
g.handleControllerInstallationDelete(controllerInstallation)
},
})
}
func (g *graph) handleControllerInstallationCreateOrUpdate(controllerInstallation *gardencorev1beta1.ControllerInstallation) {
start := time.Now()
defer func() {
metricUpdateDuration.WithLabelValues("ControllerInstallation", "CreateOrUpdate").Observe(time.Since(start).Seconds())
}()
g.lock.Lock()
defer g.lock.Unlock()
g.deleteVertex(VertexTypeControllerInstallation, "", controllerInstallation.Name)
var (
controllerInstallationVertex = g.getOrCreateVertex(VertexTypeControllerInstallation, "", controllerInstallation.Name)
seedVertex = g.getOrCreateVertex(VertexTypeSeed, "", controllerInstallation.Spec.SeedRef.Name)
controllerRegistrationVertex = g.getOrCreateVertex(VertexTypeControllerRegistration, "", controllerInstallation.Spec.RegistrationRef.Name)
)
g.addEdge(controllerRegistrationVertex, controllerInstallationVertex)
g.addEdge(controllerInstallationVertex, seedVertex)
if controllerInstallation.Spec.DeploymentRef != nil {
controllerDeploymentVertex := g.getOrCreateVertex(VertexTypeControllerDeployment, "", controllerInstallation.Spec.DeploymentRef.Name)
g.addEdge(controllerDeploymentVertex, controllerInstallationVertex)
}
}
func (g *graph) handleControllerInstallationDelete(controllerInstallation *gardencorev1beta1.ControllerInstallation) {
start := time.Now()
defer func() {
metricUpdateDuration.WithLabelValues("ControllerInstallation", "Delete").Observe(time.Since(start).Seconds())
}()
g.lock.Lock()
defer g.lock.Unlock()
g.deleteVertex(VertexTypeControllerInstallation, "", controllerInstallation.Name)
}