mirror of
https://github.com/ceph/ceph-csi.git
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61 lines
1.6 KiB
Go
61 lines
1.6 KiB
Go
/*
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Copyright 2018 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 main
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import (
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"encoding/json"
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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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"k8s.io/klog"
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)
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const (
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addFirstLabelPatch string = `[
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{ "op": "add", "path": "/metadata/labels", "value": {"added-label": "yes"}}
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]`
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addAdditionalLabelPatch string = `[
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{ "op": "add", "path": "/metadata/labels/added-label", "value": "yes" }
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]`
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)
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// Add a label {"added-label": "yes"} to the object
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func addLabel(ar v1beta1.AdmissionReview) *v1beta1.AdmissionResponse {
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klog.V(2).Info("calling add-label")
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obj := struct {
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metav1.ObjectMeta
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Data map[string]string
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}{}
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raw := ar.Request.Object.Raw
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err := json.Unmarshal(raw, &obj)
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if err != nil {
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klog.Error(err)
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return toAdmissionResponse(err)
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}
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reviewResponse := v1beta1.AdmissionResponse{}
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reviewResponse.Allowed = true
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if len(obj.ObjectMeta.Labels) == 0 {
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reviewResponse.Patch = []byte(addFirstLabelPatch)
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} else {
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reviewResponse.Patch = []byte(addAdditionalLabelPatch)
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}
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pt := v1beta1.PatchTypeJSONPatch
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reviewResponse.PatchType = &pt
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return &reviewResponse
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}
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