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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.
82 lines
2.6 KiB
Go
82 lines
2.6 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 clustertrustbundle provides Registry interface and its RESTStorage
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// implementation for storing ClusterTrustBundle objects.
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package clustertrustbundle // import "k8s.io/kubernetes/pkg/registry/certificates/clustertrustbundle"
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import (
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"context"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/validation/field"
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"k8s.io/apiserver/pkg/registry/rest"
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"k8s.io/apiserver/pkg/storage/names"
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"k8s.io/kubernetes/pkg/api/legacyscheme"
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"k8s.io/kubernetes/pkg/apis/certificates"
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certvalidation "k8s.io/kubernetes/pkg/apis/certificates/validation"
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)
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// strategy implements behavior for ClusterTrustBundles.
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type strategy struct {
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runtime.ObjectTyper
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names.NameGenerator
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}
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// Strategy is the create, update, and delete strategy for ClusterTrustBundles.
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var Strategy = strategy{legacyscheme.Scheme, names.SimpleNameGenerator}
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var _ rest.RESTCreateStrategy = Strategy
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var _ rest.RESTUpdateStrategy = Strategy
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var _ rest.RESTDeleteStrategy = Strategy
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func (strategy) NamespaceScoped() bool {
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return false
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}
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func (strategy) PrepareForCreate(ctx context.Context, obj runtime.Object) {}
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func (strategy) Validate(ctx context.Context, obj runtime.Object) field.ErrorList {
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bundle := obj.(*certificates.ClusterTrustBundle)
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return certvalidation.ValidateClusterTrustBundle(bundle, certvalidation.ValidateClusterTrustBundleOptions{})
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}
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func (strategy) WarningsOnCreate(ctx context.Context, obj runtime.Object) []string {
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return nil
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}
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func (strategy) Canonicalize(obj runtime.Object) {}
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func (strategy) AllowCreateOnUpdate() bool {
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return false
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}
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func (s strategy) PrepareForUpdate(ctx context.Context, new, old runtime.Object) {}
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func (s strategy) ValidateUpdate(ctx context.Context, new, old runtime.Object) field.ErrorList {
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newBundle := new.(*certificates.ClusterTrustBundle)
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oldBundle := old.(*certificates.ClusterTrustBundle)
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return certvalidation.ValidateClusterTrustBundleUpdate(newBundle, oldBundle)
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}
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func (strategy) WarningsOnUpdate(ctx context.Context, obj, old runtime.Object) []string {
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return nil
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}
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func (strategy) AllowUnconditionalUpdate() bool {
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return false
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}
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