42b6b374cf
https://github.com/kubernetes/enhancements/blob/master/keps/sig-storage/177-volume-snapshot/tighten-validation-webhook-crd.md 1. Ratcheting validation webhook server image 2. Controller labels invalid objects 3. Unit tests for webhook 4. Deployment README and example deployment method with certs 5. Update top-level README Racheting validation: 1. webhook is strict on create 2. webhook is strict on updates where the existing object passes strict validation 3. webhook is relaxed on updates where the existing object fails strict validation (allows finalizer removal, status update, deletion, etc) Additionally the validating wehook server will perform immutability checks on scenario 2 above.
106 lines
3.0 KiB
Go
106 lines
3.0 KiB
Go
/*
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Copyright 2020 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package webhook
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import (
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v1 "k8s.io/api/admission/v1"
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"k8s.io/api/admission/v1beta1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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func convertAdmissionRequestToV1(r *v1beta1.AdmissionRequest) *v1.AdmissionRequest {
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return &v1.AdmissionRequest{
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Kind: r.Kind,
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Namespace: r.Namespace,
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Name: r.Name,
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Object: r.Object,
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Resource: r.Resource,
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Operation: v1.Operation(r.Operation),
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UID: r.UID,
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DryRun: r.DryRun,
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OldObject: r.OldObject,
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Options: r.Options,
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RequestKind: r.RequestKind,
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RequestResource: r.RequestResource,
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RequestSubResource: r.RequestSubResource,
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SubResource: r.SubResource,
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UserInfo: r.UserInfo,
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}
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}
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func convertAdmissionRequestToV1beta1(r *v1.AdmissionRequest) *v1beta1.AdmissionRequest {
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return &v1beta1.AdmissionRequest{
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Kind: r.Kind,
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Namespace: r.Namespace,
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Name: r.Name,
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Object: r.Object,
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Resource: r.Resource,
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Operation: v1beta1.Operation(r.Operation),
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UID: r.UID,
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DryRun: r.DryRun,
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OldObject: r.OldObject,
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Options: r.Options,
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RequestKind: r.RequestKind,
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RequestResource: r.RequestResource,
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RequestSubResource: r.RequestSubResource,
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SubResource: r.SubResource,
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UserInfo: r.UserInfo,
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}
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}
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func convertAdmissionResponseToV1(r *v1beta1.AdmissionResponse) *v1.AdmissionResponse {
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var pt *v1.PatchType
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if r.PatchType != nil {
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t := v1.PatchType(*r.PatchType)
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pt = &t
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}
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return &v1.AdmissionResponse{
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UID: r.UID,
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Allowed: r.Allowed,
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AuditAnnotations: r.AuditAnnotations,
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Patch: r.Patch,
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PatchType: pt,
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Result: r.Result,
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Warnings: r.Warnings,
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}
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}
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func convertAdmissionResponseToV1beta1(r *v1.AdmissionResponse) *v1beta1.AdmissionResponse {
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var pt *v1beta1.PatchType
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if r.PatchType != nil {
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t := v1beta1.PatchType(*r.PatchType)
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pt = &t
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}
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return &v1beta1.AdmissionResponse{
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UID: r.UID,
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Allowed: r.Allowed,
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AuditAnnotations: r.AuditAnnotations,
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Patch: r.Patch,
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PatchType: pt,
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Result: r.Result,
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Warnings: r.Warnings,
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}
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}
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func toV1AdmissionResponse(err error) *v1.AdmissionResponse {
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return &v1.AdmissionResponse{
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Result: &metav1.Status{
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Message: err.Error(),
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},
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}
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}
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