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mapper.go
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/
mapper.go
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// Copyright (c) 2019 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 backupentry
import (
"context"
"time"
v1beta1constants "github.com/gardener/gardener/pkg/apis/core/v1beta1/constants"
extensionsv1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
"github.com/gardener/gardener/pkg/controllerutils/mapper"
predicateutils "github.com/gardener/gardener/pkg/controllerutils/predicate"
"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/predicate"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
)
type secretToBackupEntryMapper struct {
predicates []predicate.Predicate
}
func (m *secretToBackupEntryMapper) Map(ctx context.Context, _ logr.Logger, reader client.Reader, obj client.Object) []reconcile.Request {
ctx, cancel := context.WithTimeout(ctx, 5*time.Second)
defer cancel()
secret, ok := obj.(*corev1.Secret)
if !ok {
return nil
}
backupEntryList := &extensionsv1alpha1.BackupEntryList{}
if err := reader.List(ctx, backupEntryList); err != nil {
return nil
}
var requests []reconcile.Request
for _, backupEntry := range backupEntryList.Items {
if backupEntry.Spec.SecretRef.Name == secret.Name && backupEntry.Spec.SecretRef.Namespace == secret.Namespace {
if predicateutils.EvalGeneric(&backupEntry, m.predicates...) {
requests = append(requests, reconcile.Request{
NamespacedName: types.NamespacedName{
Name: backupEntry.Name,
},
})
}
}
}
return requests
}
// SecretToBackupEntryMapper returns a mapper that returns requests for BackupEntry whose
// referenced secrets have been modified.
func SecretToBackupEntryMapper(predicates []predicate.Predicate) mapper.Mapper {
return &secretToBackupEntryMapper{predicates: predicates}
}
type namespaceToBackupEntryMapper struct {
predicates []predicate.Predicate
}
func (m *namespaceToBackupEntryMapper) Map(ctx context.Context, _ logr.Logger, reader client.Reader, obj client.Object) []reconcile.Request {
ctx, cancel := context.WithTimeout(ctx, 5*time.Second)
defer cancel()
namespace, ok := obj.(*corev1.Namespace)
if !ok {
return nil
}
backupEntryList := &extensionsv1alpha1.BackupEntryList{}
if err := reader.List(ctx, backupEntryList); err != nil {
return nil
}
shootUID := namespace.Annotations[v1beta1constants.ShootUID]
var requests []reconcile.Request
for _, backupEntry := range backupEntryList.Items {
if !predicateutils.EvalGeneric(&backupEntry, m.predicates...) {
continue
}
expectedTechnicalID, expectedUID := ExtractShootDetailsFromBackupEntryName(backupEntry.Name)
if namespace.Name == expectedTechnicalID && shootUID == expectedUID {
requests = append(requests, reconcile.Request{
NamespacedName: types.NamespacedName{
Name: backupEntry.Name,
},
})
}
}
return requests
}
// NamespaceToBackupEntryMapper returns a mapper that returns requests for BackupEntry whose
// associated Shoot's seed namespace have been modified.
func NamespaceToBackupEntryMapper(predicates []predicate.Predicate) mapper.Mapper {
return &namespaceToBackupEntryMapper{predicates: predicates}
}