42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
/*
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Copyright 2025 Peter Kurfer.
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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 health
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import (
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"crypto/tls"
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"errors"
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"fmt"
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"net/http"
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"time"
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ctrl "sigs.k8s.io/controller-runtime"
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"sigs.k8s.io/controller-runtime/pkg/healthz"
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)
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var ErrCertExpired = errors.New("certificate expired")
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func CertValidCheck(cert tls.Certificate) healthz.Checker {
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return func(req *http.Request) error {
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if cert.Leaf.NotAfter.Before(time.Now()) {
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err := fmt.Errorf("%w: %s", ErrCertExpired, cert.Leaf.Subject.CommonName)
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ctrl.Log.Error(err, "certificate expired", "commonName", cert.Leaf.Subject.CommonName, "not_after", cert.Leaf.NotAfter)
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return err
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}
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return nil
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}
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}
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