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6a75e7c40c
This commit is the main API piece of KEP-3257 (ClusterTrustBundles). This commit: * Adds the certificates.k8s.io/v1alpha1 API group * Adds the ClusterTrustBundle type. * Registers the new type in kube-apiserver. * Implements the type-specfic validation specified for ClusterTrustBundles: - spec.pemTrustAnchors must always be non-empty. - spec.signerName must be either empty or a valid signer name. - Changing spec.signerName is disallowed. * Implements the "attest" admission check to restrict actions on ClusterTrustBundles that include a signer name. Because it wasn't specified in the KEP, I chose to make attempts to update the signer name be validation errors, rather than silently ignored. I have tested this out by launching these changes in kind and manipulating ClusterTrustBundle objects in the resulting cluster using kubectl.
38 lines
1.0 KiB
Go
38 lines
1.0 KiB
Go
/*
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Copyright 2022 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 v1alpha1
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import (
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"fmt"
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"k8s.io/apimachinery/pkg/runtime"
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)
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func addConversionFuncs(scheme *runtime.Scheme) error {
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return scheme.AddFieldLabelConversionFunc(
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SchemeGroupVersion.WithKind("ClusterTrustBundle"),
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func(label, value string) (string, string, error) {
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switch label {
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case "metadata.name", "spec.signerName":
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return label, value, nil
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default:
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return "", "", fmt.Errorf("field label not supported: %s", label)
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}
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},
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)
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}
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