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secrets.go
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secrets.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 validator
import (
"context"
"fmt"
"github.com/gardener/gardener-extension-provider-alicloud/pkg/alicloud"
alicloudvalidation "github.com/gardener/gardener-extension-provider-alicloud/pkg/apis/alicloud/validation"
secretutil "github.com/gardener/gardener/extensions/pkg/util/secret"
extensionswebhook "github.com/gardener/gardener/extensions/pkg/webhook"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/equality"
"sigs.k8s.io/controller-runtime/pkg/client"
)
type secret struct {
client client.Client
}
// NewSecretValidator returns a new instance of a secret validator.
func NewSecretValidator() extensionswebhook.Validator {
return &secret{}
}
// InjectClient injects the given client into the validator.
func (s *secret) InjectClient(client client.Client) error {
s.client = client
return nil
}
// Validate checks whether the given new secret is in use by Shoot with provider.type=alicloud
// and if yes, it check whether the new secret contains valid access keys.
func (s *secret) Validate(ctx context.Context, newObj, oldObj client.Object) error {
secret, ok := newObj.(*corev1.Secret)
if !ok {
return fmt.Errorf("wrong object type %T", newObj)
}
if oldObj != nil {
oldSecret, ok := oldObj.(*corev1.Secret)
if !ok {
return fmt.Errorf("wrong object type %T for old object", oldObj)
}
if equality.Semantic.DeepEqual(secret.Data, oldSecret.Data) {
return nil
}
}
isInUse, err := secretutil.IsSecretInUseByShoot(ctx, s.client, secret, alicloud.Type)
if err != nil {
return err
}
if !isInUse {
return nil
}
return alicloudvalidation.ValidateCloudProviderSecret(secret)
}