1816c85b20
added comments and renamed some variables to make the code easier to understand migrated to new image_util build system improved tests updated copyright headers to 2018 updated webhook version
58 lines
1.9 KiB
Go
58 lines
1.9 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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"fmt"
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apiextensionsv1beta1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1beta1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"github.com/golang/glog"
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"k8s.io/api/admission/v1beta1"
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)
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// This function expects all CRDs submitted to it to be apiextensions.k8s.io/v1beta1
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// TODO: When apiextensions.k8s.io/v1 is added we will need to update this function.
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func admitCRD(ar v1beta1.AdmissionReview) *v1beta1.AdmissionResponse {
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glog.V(2).Info("admitting crd")
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crdResource := metav1.GroupVersionResource{Group: "apiextensions.k8s.io", Version: "v1beta1", Resource: "customresourcedefinitions"}
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if ar.Request.Resource != crdResource {
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err := fmt.Errorf("expect resource to be %s", crdResource)
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glog.Error(err)
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return toAdmissionResponse(err)
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}
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raw := ar.Request.Object.Raw
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crd := apiextensionsv1beta1.CustomResourceDefinition{}
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deserializer := codecs.UniversalDeserializer()
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if _, _, err := deserializer.Decode(raw, nil, &crd); err != nil {
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glog.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 v, ok := crd.Labels["webhook-e2e-test"]; ok {
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if v == "webhook-disallow" {
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reviewResponse.Allowed = false
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reviewResponse.Result = &metav1.Status{Message: "the crd contains unwanted label"}
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}
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}
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return &reviewResponse
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}
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