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pvc-mutate.go
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pvc-mutate.go
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/*
* This file is part of the CDI project
*
* 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.
*
* Copyright 2023 Red Hat, Inc.
*
*/
package webhooks
import (
"context"
"encoding/json"
admissionv1 "k8s.io/api/admission/v1"
v1 "k8s.io/api/core/v1"
"k8s.io/klog/v2"
"sigs.k8s.io/controller-runtime/pkg/client"
"kubevirt.io/containerized-data-importer/pkg/common"
dvc "kubevirt.io/containerized-data-importer/pkg/controller/datavolume"
)
type pvcMutatingWebhook struct {
cachedClient client.Client
}
func (wh *pvcMutatingWebhook) Admit(ar admissionv1.AdmissionReview) *admissionv1.AdmissionResponse {
if ar.Request.Operation != admissionv1.Create {
return allowedAdmissionResponse()
}
if err := validatePvcResource(ar); err != nil {
return toAdmissionResponseError(err)
}
pvc := &v1.PersistentVolumeClaim{}
if err := json.Unmarshal(ar.Request.Object.Raw, &pvc); err != nil {
return toAdmissionResponseError(err)
}
// Note the webhook LabelSelector should not pass us such pvcs
if pvc.Labels[common.PvcApplyStorageProfileLabel] != "true" {
klog.Warningf("Got PVC %s/%s which was not labeled for rendering", pvc.Namespace, pvc.Name)
return allowedAdmissionResponse()
}
pvcCpy := pvc.DeepCopy()
if err := dvc.RenderPvc(context.TODO(), wh.cachedClient, pvcCpy); err != nil {
return toAdmissionResponseError(err)
}
return toPatchResponse(pvc, pvcCpy)
}