func DurationToExpirationSeconds(duration time.Duration) *int32
func ExpirationSecondsToDuration(expirationSeconds int32) time.Duration
func RequestCertificate(client clientset.Interface, csrData []byte, name, signerName string, requestedDuration *time.Duration, usages []certificatesv1.KeyUsage, privateKey interface{}) (reqName string, reqUID types.UID, err error)
RequestCertificate will either use an existing (if this process has run before but not to completion) or create a certificate signing request using the PEM encoded CSR and send it to API server. An optional requestedDuration may be passed to set the spec.expirationSeconds field on the CSR to control the lifetime of the issued certificate. This is not guaranteed as the signer may choose to ignore the request.
func WaitForCertificate(ctx context.Context, client clientset.Interface, reqName string, reqUID types.UID) (certData []byte, err error)
WaitForCertificate waits for a certificate to be issued until timeout, or returns an error.