1 /* 2 Copyright 2019 The Kubernetes Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package renewal 18 19 import ( 20 "crypto/x509" 21 "time" 22 ) 23 24 // ExpirationInfo defines expiration info for a certificate 25 type ExpirationInfo struct { 26 // Name of the certificate 27 // For PKI certificates, it is the name defined in the certsphase package, while for certificates 28 // embedded in the kubeConfig files, it is the kubeConfig file name defined in the kubeadm constants package. 29 // If you use the CertificateRenewHandler returned by Certificates func, handler.Name already contains the right value. 30 Name string 31 32 // ExpirationDate defines certificate expiration date 33 ExpirationDate time.Time 34 35 // ExternallyManaged defines if the certificate is externally managed, that is when 36 // the signing CA certificate is provided without the certificate key (In this case kubeadm can't renew the certificate) 37 ExternallyManaged bool 38 } 39 40 // newExpirationInfo returns a new ExpirationInfo 41 func newExpirationInfo(name string, cert *x509.Certificate, externallyManaged bool) *ExpirationInfo { 42 return &ExpirationInfo{ 43 Name: name, 44 ExpirationDate: cert.NotAfter, 45 ExternallyManaged: externallyManaged, 46 } 47 } 48 49 // ResidualTime returns the time missing to expiration 50 func (e *ExpirationInfo) ResidualTime() time.Duration { 51 return time.Until(e.ExpirationDate) 52 } 53