/
reconciler.go
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/
reconciler.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 node
import (
"context"
"github.com/gardener/gardener/pkg/provider-local/local"
"github.com/go-logr/logr"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/types"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/log"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
)
type reconciler struct {
logger logr.Logger
client client.Client
}
// NewReconciler creates a new reconcile.Reconciler that reconciles Nodes.
func NewReconciler() reconcile.Reconciler {
return &reconciler{
logger: log.Log.WithName(ControllerName),
}
}
func (r *reconciler) InjectClient(client client.Client) error {
r.client = client
return nil
}
func (r *reconciler) Reconcile(ctx context.Context, request reconcile.Request) (reconcile.Result, error) {
node := &corev1.Node{}
if err := r.client.Get(ctx, request.NamespacedName, node); err != nil {
return reconcile.Result{}, client.IgnoreNotFound(err)
}
for _, resourceList := range []corev1.ResourceList{node.Status.Allocatable, node.Status.Capacity} {
if !resourceList[corev1.ResourceCPU].Equal(local.NodeResourceCPU) || !resourceList[corev1.ResourceMemory].Equal(local.NodeResourceMemory) {
// submit empty patch to trigger 'node' webhook which will update these values
return reconcile.Result{}, r.client.Status().Patch(ctx, node, client.RawPatch(types.StrategicMergePatchType, []byte("{}")))
}
}
return reconcile.Result{}, nil
}