kubernetes1.18.2 修改证书到期时间

1.下载kubernetes源码包

2.修改证书时间

cd  /opt/kubernetes/cmd/kubeadm/app/util/pkiutil

修改pki_helpers.go

[root@k8s-harbor pkiutil]# vi pki_helpers.go

增加：const duration365d = time.Hour * 24 * 365 * 10

修改：NotAfter:     time.Now().Add(duration365d).UTC(),

3.选择需要编译的分支

[root@k8s-harbor kubernetes]# git checkout -b remotes/origin/release-1.18.2 v1.18.2
M       cmd/kubeadm/app/util/pkiutil/pki_helpers.go
M       staging/src/k8s.io/client-go/util/cert/cert.go

4.编译

[root@k8s-harbor kubernetes]# make WHAT=cmd/kubeadm GOFLAGS=-v
warning: ignoring symlink /opt/kubernetes/_output/local/go/src/k8s.io/kubernetes
go: warning: "k8s.io/kubernetes/vendor/github.com/go-bindata/go-bindata/..." matched no packages
+++ [0730 08:55:42] Building go targets for linux/amd64:
    cmd/kubeadm
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/net
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/watch
k8s.io/kubernetes/vendor/k8s.io/client-go/transport
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/apis/meta/v1
...
...
k8s.io/kubernetes/cmd/kubeadm/app/discovery/https
k8s.io/kubernetes/vendor/k8s.io/client-go/util/certificate/csr
k8s.io/kubernetes/vendor/k8s.io/client-go/kubernetes/fake
k8s.io/kubernetes/cmd/kubeadm/app/util/apiclient
k8s.io/kubernetes/cmd/kubeadm/app/util/config
k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/join
k8s.io/kubernetes/cmd/kubeadm/app/phases/upgrade
k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/upgrade/node
k8s.io/kubernetes/cmd/kubeadm/app/cmd/upgrade
k8s.io/kubernetes/cmd/kubeadm/app/cmd
[root@k8s-harbor kubernetes]# 

5.拷贝kubeadm

[root@k8s-harbor kubernetes]# cd _output/bin/
[root@k8s-harbor bin]# ls
conversion-gen  deepcopy-gen  defaulter-gen  go2make  go-bindata  kubeadm  openapi-gen  prerelease-lifecycle-gen