diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/BUILD b/staging/src/k8s.io/apiserver/pkg/server/options/BUILD
index 8e616203fb6..02afcb85038 100644
--- a/staging/src/k8s.io/apiserver/pkg/server/options/BUILD
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/BUILD
@@ -23,7 +23,6 @@ go_test(
         "//vendor/k8s.io/apiserver/pkg/util/flag:go_default_library",
         "//vendor/k8s.io/client-go/discovery:go_default_library",
         "//vendor/k8s.io/client-go/rest:go_default_library",
-        "//vendor/k8s.io/client-go/util/cert:go_default_library",
     ],
 )
 
@@ -78,3 +77,8 @@ go_library(
         "//vendor/k8s.io/client-go/util/cert:go_default_library",
     ],
 )
+
+filegroup(
+    name = "testdata",
+    srcs = glob(["testdata/*"]),
+)
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/serving_test.go b/staging/src/k8s.io/apiserver/pkg/server/options/serving_test.go
index c1869dd1bd5..d26d256b778 100644
--- a/staging/src/k8s.io/apiserver/pkg/server/options/serving_test.go
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/serving_test.go
@@ -17,16 +17,24 @@ limitations under the License.
 package options
 
 import (
+	"bytes"
+	cryptorand "crypto/rand"
+	"crypto/rsa"
 	"crypto/tls"
 	"crypto/x509"
+	"crypto/x509/pkix"
 	"encoding/base64"
 	"encoding/pem"
 	"fmt"
 	"io/ioutil"
+	"math/big"
 	"net"
 	"os"
+	"path/filepath"
 	"reflect"
+	"strings"
 	"testing"
+	"time"
 
 	"github.com/stretchr/testify/assert"
 
@@ -39,7 +47,6 @@ import (
 	utilflag "k8s.io/apiserver/pkg/util/flag"
 	"k8s.io/client-go/discovery"
 	restclient "k8s.io/client-go/rest"
-	utilcert "k8s.io/client-go/util/cert"
 )
 
 func setUp(t *testing.T) Config {
@@ -387,16 +394,17 @@ func TestServerRunWithSNI(t *testing.T) {
 		},
 	}
 
-	tempDir, err := ioutil.TempDir("", "")
-	if err != nil {
-		t.Fatal(err)
+	specToName := func(spec TestCertSpec) string {
+		return spec.host + "_" + strings.Join(spec.names, ",") + "_" + strings.Join(spec.ips, ",")
 	}
-	defer os.RemoveAll(tempDir)
 
 NextTest:
 	for title, test := range tests {
 		// create server cert
-		serverCertBundleFile, serverKeyFile, err := createTestCertFiles(tempDir, test.Cert)
+		certDir := "testdata/" + specToName(test.Cert)
+		serverCertBundleFile := filepath.Join(certDir, "cert")
+		serverKeyFile := filepath.Join(certDir, "key")
+		err := getOrCreateTestCertFiles(serverCertBundleFile, serverKeyFile, test.Cert)
 		if err != nil {
 			t.Errorf("%q - failed to create server cert: %v", title, err)
 			continue NextTest
@@ -419,7 +427,10 @@ NextTest:
 			serverSig: -1,
 		}
 		for j, c := range test.SNICerts {
-			certBundleFile, keyFile, err := createTestCertFiles(tempDir, c.TestCertSpec)
+			sniDir := filepath.Join(certDir, specToName(c.TestCertSpec))
+			certBundleFile := filepath.Join(sniDir, "cert")
+			keyFile := filepath.Join(sniDir, "key")
+			err := getOrCreateTestCertFiles(certBundleFile, keyFile, c.TestCertSpec)
 			if err != nil {
 				t.Errorf("%q - failed to create SNI cert %d: %v", title, j, err)
 				continue NextTest
@@ -572,7 +583,7 @@ func parseIPList(ips []string) []net.IP {
 }
 
 func createTestTLSCerts(spec TestCertSpec) (tlsCert tls.Certificate, err error) {
-	certPem, keyPem, err := utilcert.GenerateSelfSignedCertKey(spec.host, parseIPList(spec.ips), spec.names)
+	certPem, keyPem, err := generateSelfSignedCertKey(spec.host, parseIPList(spec.ips), spec.names)
 	if err != nil {
 		return tlsCert, err
 	}
@@ -581,35 +592,31 @@ func createTestTLSCerts(spec TestCertSpec) (tlsCert tls.Certificate, err error)
 	return tlsCert, err
 }
 
-func createTestCertFiles(dir string, spec TestCertSpec) (certFilePath, keyFilePath string, err error) {
-	certPem, keyPem, err := utilcert.GenerateSelfSignedCertKey(spec.host, parseIPList(spec.ips), spec.names)
-	if err != nil {
-		return "", "", err
+func getOrCreateTestCertFiles(certFileName, keyFileName string, spec TestCertSpec) (err error) {
+	if _, err := os.Stat(certFileName); err == nil {
+		if _, err := os.Stat(keyFileName); err == nil {
+			return nil
+		}
 	}
 
-	certFile, err := ioutil.TempFile(dir, "cert")
+	certPem, keyPem, err := generateSelfSignedCertKey(spec.host, parseIPList(spec.ips), spec.names)
 	if err != nil {
-		return "", "", err
+		return err
 	}
 
-	keyFile, err := ioutil.TempFile(dir, "key")
+	os.MkdirAll(filepath.Dir(certFileName), os.FileMode(0755))
+	err = ioutil.WriteFile(certFileName, certPem, os.FileMode(0755))
 	if err != nil {
-		return "", "", err
+		return err
 	}
 
-	_, err = certFile.Write(certPem)
+	os.MkdirAll(filepath.Dir(keyFileName), os.FileMode(0755))
+	err = ioutil.WriteFile(keyFileName, keyPem, os.FileMode(0755))
 	if err != nil {
-		return "", "", err
+		return err
 	}
-	certFile.Close()
 
-	_, err = keyFile.Write(keyPem)
-	if err != nil {
-		return "", "", err
-	}
-	keyFile.Close()
-
-	return certFile.Name(), keyFile.Name(), nil
+	return nil
 }
 
 func caCertFromBundle(bundlePath string) (*x509.Certificate, error) {
@@ -663,3 +670,55 @@ func fakeVersion() version.Info {
 		GitTreeState: "Dirty",
 	}
 }
+
+// generateSelfSignedCertKey creates a self-signed certificate and key for the given host.
+// Host may be an IP or a DNS name
+// You may also specify additional subject alt names (either ip or dns names) for the certificate
+func generateSelfSignedCertKey(host string, alternateIPs []net.IP, alternateDNS []string) ([]byte, []byte, error) {
+	priv, err := rsa.GenerateKey(cryptorand.Reader, 2048)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	template := x509.Certificate{
+		SerialNumber: big.NewInt(1),
+		Subject: pkix.Name{
+			CommonName: fmt.Sprintf("%s@%d", host, time.Now().Unix()),
+		},
+		NotBefore: time.Unix(0, 0),
+		NotAfter:  time.Now().Add(time.Hour * 24 * 365 * 100),
+
+		KeyUsage:              x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature | x509.KeyUsageCertSign,
+		ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
+		BasicConstraintsValid: true,
+		IsCA: true,
+	}
+
+	if ip := net.ParseIP(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 {
+		return nil, nil, err
+	}
+
+	// Generate cert
+	certBuffer := bytes.Buffer{}
+	if err := pem.Encode(&certBuffer, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes}); err != nil {
+		return nil, nil, err
+	}
+
+	// Generate key
+	keyBuffer := bytes.Buffer{}
+	if err := pem.Encode(&keyBuffer, &pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(priv)}); err != nil {
+		return nil, nil, err
+	}
+
+	return certBuffer.Bytes(), keyBuffer.Bytes(), nil
+}
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/apiserver-loopback-client__/cert b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/apiserver-loopback-client__/cert
new file mode 100755
index 00000000000..fade595fc6d
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/apiserver-loopback-client__/cert
@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/apiserver-loopback-client__/key b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/apiserver-loopback-client__/key
new file mode 100755
index 00000000000..6eae7eb182d
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/apiserver-loopback-client__/key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----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+9uMjDYBHau73ldiqyl+vbEZFmOPJLSI5bXJwToOSmGzx9lTsx3TGivNjKUe+GOIt
+vUl98F6DX88IBK+FZrAgDWbtGsjYugiMKg3d/MK+FFwxVdhgsOK8on4QFDqKyVfL
+bMbJ1QUtAoGBAK4nM5GZyefXylAnq+pzGTStu0Q1AVzN0iWO0G0Q6gaItvk82Scf
+wVoEGE9a2pDCR1I1mbJn1jRxd6/GtXvR4TJSxPILS+B8aZFkxl9WIWjv/mnKJkVL
+PmSNPbieuban9TRBu6nQfWOfLMHmBnG/QXbx2X1WCRoXjICT41gJ5et3
+-----END RSA PRIVATE KEY-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/apiserver-loopback-client__/localhost__/cert b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/apiserver-loopback-client__/localhost__/cert
new file mode 100755
index 00000000000..3fb375592db
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/apiserver-loopback-client__/localhost__/cert
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDCTCCAfGgAwIBAgIBATANBgkqhkiG9w0BAQsFADAfMR0wGwYDVQQDDBRsb2Nh
+bGhvc3RAMTQ5NjMzMDY1NzAgFw03MDAxMDEwMDAwMDBaGA8yMTE3MDUwODE1MjQx
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+kBM22wn5l/YM/4HqSOTVQON1SmmLUPlnWtzxVRDKPzI2zxpKkzW4U1bYgdwM/Xeo
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+ok+biBB4xShOwpSyKCmJg4otlvN7qJ34fCjYkQY+PXzGS6YV34Wj64F8mReTt4LO
+glampIa1cLUWPMlYPQ==
+-----END CERTIFICATE-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/apiserver-loopback-client__/localhost__/key b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/apiserver-loopback-client__/localhost__/key
new file mode 100755
index 00000000000..f9f40c6df75
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/apiserver-loopback-client__/localhost__/key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEpAIBAAKCAQEA4aXmOo+ro2XNltKWgvaZlR5RIW57B/y9DdyYwFqKMmVoLAEU
+pb/eVYdjNYFcpru5modxx80JFXurzeW354DjuANnd38WD9N9OPt2BEwmq4mc3BJP
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+NjHnQAVlRUIP0VisQRkBC4iy2ca/gVVhKgygVBuHC97fKAHlpUlO6Y7Ow031stAy
+K3zrTjuVwsz8C6bFCxHl5ojP+0cSoK7qej09vj/te1DNvkYuE/0j4Q==
+-----END RSA PRIVATE KEY-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__/apiserver-loopback-client__/cert b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__/apiserver-loopback-client__/cert
new file mode 100755
index 00000000000..8fb51107f66
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__/apiserver-loopback-client__/cert
@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----
+MIIDOTCCAiGgAwIBAgIBATANBgkqhkiG9w0BAQsFADAvMS0wKwYDVQQDDCRhcGlz
+ZXJ2ZXItbG9vcGJhY2stY2xpZW50QDE0OTYzMzA2NTgwIBcNNzAwMTAxMDAwMDAw
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+-----END CERTIFICATE-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__/apiserver-loopback-client__/key b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__/apiserver-loopback-client__/key
new file mode 100755
index 00000000000..8b9712cf06c
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__/apiserver-loopback-client__/key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
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+-----END RSA PRIVATE KEY-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__/cert b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__/cert
new file mode 100755
index 00000000000..a402b3e806d
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__/cert
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__/key b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__/key
new file mode 100755
index 00000000000..91de1492fb8
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__/key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
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+-----END RSA PRIVATE KEY-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__10.0.0.1,127.0.0.1/cert b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__10.0.0.1,127.0.0.1/cert
new file mode 100755
index 00000000000..e477a0f1b3a
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__10.0.0.1,127.0.0.1/cert
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__10.0.0.1,127.0.0.1/key b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__10.0.0.1,127.0.0.1/key
new file mode 100755
index 00000000000..27ddac7957f
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__10.0.0.1,127.0.0.1/key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
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+-----END RSA PRIVATE KEY-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__10.0.0.1,127.0.0.1/test.com__10.0.0.1/cert b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__10.0.0.1,127.0.0.1/test.com__10.0.0.1/cert
new file mode 100755
index 00000000000..bdeb4090c25
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__10.0.0.1,127.0.0.1/test.com__10.0.0.1/cert
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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+oY+IHfc38TMOEeAr8N+W2g==
+-----END CERTIFICATE-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__10.0.0.1,127.0.0.1/test.com__10.0.0.1/key b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__10.0.0.1,127.0.0.1/test.com__10.0.0.1/key
new file mode 100755
index 00000000000..146d1f7b11e
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__10.0.0.1,127.0.0.1/test.com__10.0.0.1/key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
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+-----END RSA PRIVATE KEY-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/cert b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/cert
new file mode 100755
index 00000000000..ab75f495bde
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/cert
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/key b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/key
new file mode 100755
index 00000000000..fbb247fd723
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
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+-----END RSA PRIVATE KEY-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/localhost__/cert b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/localhost__/cert
new file mode 100755
index 00000000000..38a95960fd3
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/localhost__/cert
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/localhost__/key b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/localhost__/key
new file mode 100755
index 00000000000..f243fbc9f8c
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/localhost__/key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
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+-----END RSA PRIVATE KEY-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/test.com_*.test.com_/cert b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/test.com_*.test.com_/cert
new file mode 100755
index 00000000000..4870aab7874
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/test.com_*.test.com_/cert
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/test.com_*.test.com_/key b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/test.com_*.test.com_/key
new file mode 100755
index 00000000000..e0653fc3a36
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/test.com_*.test.com_/key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
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+-----END RSA PRIVATE KEY-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/test.com__/cert b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/test.com__/cert
new file mode 100755
index 00000000000..d87b91f5544
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/test.com__/cert
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/test.com__/key b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/test.com__/key
new file mode 100755
index 00000000000..00d37caad59
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost__127.0.0.1/test.com__/key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
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+-----END RSA PRIVATE KEY-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost_test.com_127.0.0.1/cert b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost_test.com_127.0.0.1/cert
new file mode 100755
index 00000000000..e9de284e55e
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost_test.com_127.0.0.1/cert
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost_test.com_127.0.0.1/key b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost_test.com_127.0.0.1/key
new file mode 100755
index 00000000000..5016e338c33
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/localhost_test.com_127.0.0.1/key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
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+-----END RSA PRIVATE KEY-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/test.com__/cert b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/test.com__/cert
new file mode 100755
index 00000000000..f678ca992b3
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/test.com__/cert
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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+CbImL3sIf6clIg==
+-----END CERTIFICATE-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/test.com__/key b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/test.com__/key
new file mode 100755
index 00000000000..4e996b7c7e0
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/test.com__/key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
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+RkPJFDkAYDpx/v357886y7HFz8pUUNd+z9V9CLemVqhjBWmIaLEX/w==
+-----END RSA PRIVATE KEY-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/test.com__/localhost__/cert b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/test.com__/localhost__/cert
new file mode 100755
index 00000000000..28870c9aeaf
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/test.com__/localhost__/cert
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/testdata/test.com__/localhost__/key b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/test.com__/localhost__/key
new file mode 100755
index 00000000000..1f4e63735cb
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/testdata/test.com__/localhost__/key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----