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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 infrastructure
import (
"context"
extensionscontroller "github.com/gardener/gardener-extensions/pkg/controller"
extensions1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/handler"
"sigs.k8s.io/controller-runtime/pkg/predicate"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
)
type secretToInfrastructureMapper struct {
client client.Client
predicates []predicate.Predicate
}
func (m *secretToInfrastructureMapper) Map(obj handler.MapObject) []reconcile.Request {
if obj.Object == nil {
return nil
}
secret, ok := obj.Object.(*corev1.Secret)
if !ok {
return nil
}
infrastructureList := &extensions1alpha1.InfrastructureList{}
if err := m.client.List(context.TODO(), client.InNamespace(secret.Namespace), infrastructureList); err != nil {
return nil
}
var requests []reconcile.Request
for _, infrastructure := range infrastructureList.Items {
if !extensionscontroller.EvalGenericPredicate(&infrastructure, m.predicates...) {
continue
}
if infrastructure.Spec.SecretRef.Name == secret.Name {
requests = append(requests, reconcile.Request{
NamespacedName: types.NamespacedName{
Namespace: infrastructure.Namespace,
Name: infrastructure.Name,
},
})
}
}
return requests
}
// SecretToInfrastructureMapper returns a mapper that returns requests for Infrastructures whose
// referenced secrets have been modified.
func SecretToInfrastructureMapper(client client.Client, predicates []predicate.Predicate) handler.Mapper {
return &secretToInfrastructureMapper{client, predicates}
}
// ClusterToInfrastructureMapper returns a mapper that returns requests for Infrastructures whose
// referenced clusters have been modified.
func ClusterToInfrastructureMapper(client client.Client, predicates []predicate.Predicate) handler.Mapper {
return extensionscontroller.ClusterToObjectMapper(client, func() runtime.Object { return &extensions1alpha1.InfrastructureList{} }, predicates)
}