minGracePeriod   time.Duration
		k8sCaCertFile    string
		dnsNames         []string
		secretNames      []string

		secretName      string
		secretNameSpace string
		expectFail      bool
	}{
		"submitting a CSR without duplicate should succeed": {
			gracePeriodRatio: 0.6,
			k8sCaCertFile:    "./test-data/example-ca-cert.pem",
			dnsNames:         []string{"foo"},
			secretNames:      []string{"istio.webhook.foo"},

		t.Errorf("expected SAN IPs %v, got %v", expectedConfig.AltNames.IPs, cfg.AltNames.IPs)
	}

	if len(cfg.AltNames.DNSNames) != 1 || cfg.AltNames.DNSNames[0] != expectedConfig.AltNames.DNSNames[0] {
		t.Errorf("expected SAN DNSNames %v, got %v", expectedConfig.AltNames.DNSNames, cfg.AltNames.DNSNames)
	}
}

func makeTestCertConfig(organization []string, notBefore, notAfter time.Time) *pkiutil.CertConfig {

		}
	}

	for dnsName := range seenDNSNames {
		dnsNames = append(dnsNames, dnsName)
	}
	for ip := range seenIPs {
		ips = append(ips, netutils.ParseIPSloppy(ip))
	}

	// return in stable order
	sort.Strings(dnsNames)
	sort.Slice(ips, func(i, j int) bool { return ips[i].String() < ips[j].String() })

	return dnsNames, ips
}

			altNames.IPs = append(altNames.IPs, ip)
		} else if len(validation.IsDNS1123Subdomain(altname)) == 0 {
			altNames.DNSNames = append(altNames.DNSNames, altname)
		} else if len(validation.IsWildcardDNS1123Subdomain(altname)) == 0 {
			altNames.DNSNames = append(altNames.DNSNames, altname)
		} else {
			klog.Warningf(

	signerName := strings.TrimPrefix(pilotCertProviderName, constants.CertProviderKubernetesSignerPrefix)
	log.Infof("Generating K8S-signed cert for %v using signer %v", s.dnsNames, signerName)
	certChain, keyPEM, _, err = chiron.GenKeyCertK8sCA(s.kubeClient.Kube(),
		strings.Join(s.dnsNames, ","), "", signerName, true, SelfSignedCACertTTL.Get())
	if err != nil {
		return fmt.Errorf("failed generating key and cert by kubernetes: %v", err)
	}

	if ip := netutils.ParseIPSloppy(host); ip != nil {
		template.IPAddresses = append(template.IPAddresses, ip)
	} else {
		template.DNSNames = append(template.DNSNames, host)
	}

	template.IPAddresses = append(template.IPAddresses, alternateIPs...)
	template.DNSNames = append(template.DNSNames, alternateDNS...)

	derBytes, err := x509.CreateCertificate(cryptorand.Reader, &template, &template, &priv.PublicKey, priv)
	if err != nil {

			}
			emailAddresses = append(emailAddresses, email)
		case nameTypeDNS:
			name := string(data)
			if err := isIA5String(name); err != nil {
				return errors.New("x509: SAN dNSName is malformed")
			}
			dnsNames = append(dnsNames, string(name))
		case nameTypeURI:
			uriStr := string(data)
			if err := isIA5String(uriStr); err != nil {
				return errors.New("x509: SAN uniformResourceIdentifier is malformed")
			}

	if err != nil {
		return ""
	}

	if len(certConfig.AltNames.DNSNames) == 0 && len(certConfig.AltNames.IPs) == 0 {
		return ""
	}
	// This mutates the certConfig, but we're throwing it after we construct the command anyway
	sans := []string{}

	for _, dnsName := range certConfig.AltNames.DNSNames {
		if dnsName != "" {
			sans = append(sans, dnsName)
		}
	}

	for _, ip := range certConfig.AltNames.IPs {

	parse := func(constraints []string) (dnsNames []string, ips []*net.IPNet, emailAddrs []string, uriDomains []string, err error) {
		for _, constraint := range constraints {
			switch {
			case strings.HasPrefix(constraint, "dns:"):
				dnsNames = append(dnsNames, constraint[4:])

			case strings.HasPrefix(constraint, "ip:"):

	return certutil.Config{
		CommonName:   cert.Subject.CommonName,
		Organization: cert.Subject.Organization,
		AltNames: certutil.AltNames{
			IPs:      cert.IPAddresses,
			DNSNames: cert.DNSNames,
		},
		Usages: cert.ExtKeyUsage,
	}
}

func loadCertConfigMutators(certBaseName string) []certConfigMutatorFunc {
	return nil