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cd91e59f7c
This change updates the CSR API to add a new, optional field called expirationSeconds. This field is a request to the signer for the maximum duration the client wishes the cert to have. The signer is free to ignore this request based on its own internal policy. The signers built-in to KCM will honor this field if it is not set to a value greater than --cluster-signing-duration. The minimum allowed value for this field is 600 seconds (ten minutes). This change will help enforce safer durations for certificates in the Kube ecosystem and will help related projects such as cert-manager with their migration to the Kube CSR API. Future enhancements may update the Kubelet to take advantage of this field when it is configured in a way that can tolerate shorter certificate lifespans with regular rotation. Signed-off-by: Monis Khan <mok@vmware.com>
47 lines
1.6 KiB
Go
47 lines
1.6 KiB
Go
/*
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Copyright 2017 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 fuzzer
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import (
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"time"
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fuzz "github.com/google/gofuzz"
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runtimeserializer "k8s.io/apimachinery/pkg/runtime/serializer"
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"k8s.io/client-go/util/certificate/csr"
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"k8s.io/kubernetes/pkg/apis/certificates"
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api "k8s.io/kubernetes/pkg/apis/core"
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)
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// Funcs returns the fuzzer functions for the certificates api group.
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var Funcs = func(codecs runtimeserializer.CodecFactory) []interface{} {
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return []interface{}{
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func(obj *certificates.CertificateSigningRequestSpec, c fuzz.Continue) {
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c.FuzzNoCustom(obj) // fuzz self without calling this function again
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obj.Usages = []certificates.KeyUsage{certificates.UsageKeyEncipherment}
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obj.SignerName = "example.com/custom-sample-signer"
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obj.ExpirationSeconds = csr.DurationToExpirationSeconds(time.Hour + time.Minute + time.Second)
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},
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func(obj *certificates.CertificateSigningRequestCondition, c fuzz.Continue) {
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c.FuzzNoCustom(obj) // fuzz self without calling this function again
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if len(obj.Status) == 0 {
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obj.Status = api.ConditionTrue
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}
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},
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}
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}
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