61 lines
1.8 KiB
Go
61 lines
1.8 KiB
Go
/*
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Copyright 2023 The Karmada 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 resourcebinding
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import (
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"context"
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"encoding/json"
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"net/http"
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"github.com/google/uuid"
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"k8s.io/klog/v2"
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"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
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workv1alpha2 "github.com/karmada-io/karmada/pkg/apis/work/v1alpha2"
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"github.com/karmada-io/karmada/pkg/util"
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)
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// MutatingAdmission mutates API request if necessary.
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type MutatingAdmission struct {
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Decoder admission.Decoder
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}
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// Check if our MutatingAdmission implements necessary interface
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var _ admission.Handler = &MutatingAdmission{}
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// Handle yields a response to an AdmissionRequest.
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func (a *MutatingAdmission) Handle(_ context.Context, req admission.Request) admission.Response {
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rb := &workv1alpha2.ResourceBinding{}
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err := a.Decoder.Decode(req, rb)
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if err != nil {
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return admission.Errored(http.StatusBadRequest, err)
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}
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klog.V(2).Infof("Mutating resourceBinding(%s/%s) for request: %s", rb.Namespace, rb.Name, req.Operation)
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if util.GetLabelValue(rb.Labels, workv1alpha2.ResourceBindingPermanentIDLabel) == "" {
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util.MergeLabel(rb, workv1alpha2.ResourceBindingPermanentIDLabel, uuid.New().String())
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}
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marshaledBytes, err := json.Marshal(rb)
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if err != nil {
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return admission.Errored(http.StatusInternalServerError, err)
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}
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return admission.PatchResponseFromRaw(req.Object.Raw, marshaledBytes)
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}
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