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-rw-r--r--src/k8splugin/cmd/main.go11
-rw-r--r--src/k8splugin/go.mod3
-rw-r--r--src/k8splugin/internal/auth/auth.go107
-rw-r--r--src/k8splugin/internal/auth/auth_test.go47
-rw-r--r--src/k8splugin/mock_files/mock_certs/auth_test_certificate.pem21
-rw-r--r--src/k8splugin/mock_files/mock_certs/auth_test_key.pem28
6 files changed, 215 insertions, 2 deletions
diff --git a/src/k8splugin/cmd/main.go b/src/k8splugin/cmd/main.go
index e600c0d6..53b6ab17 100644
--- a/src/k8splugin/cmd/main.go
+++ b/src/k8splugin/cmd/main.go
@@ -24,6 +24,7 @@ import (
"k8splugin/api"
utils "k8splugin/internal"
+ "k8splugin/internal/auth"
"github.com/gorilla/handlers"
)
@@ -55,5 +56,13 @@ func main() {
close(connectionsClose)
}()
- log.Fatal(httpServer.ListenAndServe())
+ tlsConfig, err := auth.GetTLSConfig("ca.cert", "server.cert", "server.key")
+ if err != nil {
+ log.Println("Error Getting TLS Configuration. Starting without TLS...")
+ log.Fatal(httpServer.ListenAndServe())
+ } else {
+ httpServer.TLSConfig = tlsConfig
+ // empty strings because tlsconfig already has this information
+ err = httpServer.ListenAndServeTLS("", "")
+ }
}
diff --git a/src/k8splugin/go.mod b/src/k8splugin/go.mod
index 29a10ecb..531615a6 100644
--- a/src/k8splugin/go.mod
+++ b/src/k8splugin/go.mod
@@ -67,6 +67,7 @@ require (
github.com/xdg/scram v0.0.0-20180814205039-7eeb5667e42c // indirect
github.com/xdg/stringprep v1.0.0 // indirect
go.mongodb.org/mongo-driver v1.0.0
+ golang.org/x/crypto v0.0.0-20180904163835-0709b304e793
golang.org/x/net v0.0.0-20181201002055-351d144fa1fc
golang.org/x/oauth2 v0.0.0-20181203162652-d668ce993890 // indirect
golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2 // indirect
@@ -75,7 +76,7 @@ require (
gopkg.in/square/go-jose.v2 v2.2.2 // indirect
gopkg.in/yaml.v2 v2.2.1
k8s.io/api v0.0.0-20181126151915-b503174bad59
- k8s.io/apiextensions-apiserver v0.0.0-20181126155829-0cd23ebeb688 // indirect
+ k8s.io/apiextensions-apiserver v0.0.0-20181126155829-0cd23ebeb688
k8s.io/apimachinery v0.0.0-20181126123746-eddba98df674
k8s.io/apiserver v0.0.0-20181126153457-92fdef3a232a // indirect
k8s.io/cli-runtime v0.0.0-20190107235426-31214e12222d // indirect
diff --git a/src/k8splugin/internal/auth/auth.go b/src/k8splugin/internal/auth/auth.go
new file mode 100644
index 00000000..3da8f2af
--- /dev/null
+++ b/src/k8splugin/internal/auth/auth.go
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2018 Intel Corporation, Inc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package auth
+
+import (
+ "crypto/tls"
+ "crypto/x509"
+ "encoding/base64"
+ "encoding/pem"
+ "io/ioutil"
+ "log"
+
+ pkgerrors "github.com/pkg/errors"
+)
+
+// GetTLSConfig initializes a tlsConfig using the CA's certificate
+// This config is then used to enable the server for mutual TLS
+func GetTLSConfig(caCertFile string, certFile string, keyFile string) (*tls.Config, error) {
+
+ // Initialize tlsConfig once
+ caCert, err := ioutil.ReadFile(caCertFile)
+
+ if err != nil {
+ return nil, pkgerrors.Wrap(err, "Read CA Cert file")
+ }
+
+ caCertPool := x509.NewCertPool()
+ caCertPool.AppendCertsFromPEM(caCert)
+
+ tlsConfig := &tls.Config{
+ // Change to RequireAndVerify once we have mandatory certs
+ ClientAuth: tls.VerifyClientCertIfGiven,
+ ClientCAs: caCertPool,
+ MinVersion: tls.VersionTLS12,
+ }
+
+ certPEMBlk, err := readPEMBlock(certFile)
+ if err != nil {
+ return nil, pkgerrors.Wrap(err, "Read Cert File")
+ }
+
+ keyPEMBlk, err := readPEMBlock(keyFile)
+ if err != nil {
+ return nil, pkgerrors.Wrap(err, "Read Key File")
+ }
+
+ tlsConfig.Certificates = make([]tls.Certificate, 1)
+ tlsConfig.Certificates[0], err = tls.X509KeyPair(certPEMBlk, keyPEMBlk)
+ if err != nil {
+ return nil, pkgerrors.Wrap(err, "Load x509 cert and key")
+ }
+
+ tlsConfig.BuildNameToCertificate()
+ return tlsConfig, nil
+}
+
+func readPEMBlock(filename string) ([]byte, error) {
+
+ pemData, err := ioutil.ReadFile(filename)
+ if err != nil {
+ return nil, pkgerrors.Wrap(err, "Read PEM File")
+ }
+
+ pemBlock, rest := pem.Decode(pemData)
+ if len(rest) > 0 {
+ log.Println("Pemfile has extra data")
+ }
+
+ if x509.IsEncryptedPEMBlock(pemBlock) {
+ password, err := ioutil.ReadFile(filename + ".pass")
+ if err != nil {
+ return nil, pkgerrors.Wrap(err, "Read Password File")
+ }
+
+ pByte, err := base64.StdEncoding.DecodeString(string(password))
+ if err != nil {
+ return nil, pkgerrors.Wrap(err, "Decode PEM Password")
+ }
+
+ pemData, err = x509.DecryptPEMBlock(pemBlock, pByte)
+ if err != nil {
+ return nil, pkgerrors.Wrap(err, "Decrypt PEM Data")
+ }
+ var newPEMBlock pem.Block
+ newPEMBlock.Type = pemBlock.Type
+ newPEMBlock.Bytes = pemData
+ // Converting back to PEM from DER data you get from
+ // DecryptPEMBlock
+ pemData = pem.EncodeToMemory(&newPEMBlock)
+ }
+
+ return pemData, nil
+}
diff --git a/src/k8splugin/internal/auth/auth_test.go b/src/k8splugin/internal/auth/auth_test.go
new file mode 100644
index 00000000..49494eee
--- /dev/null
+++ b/src/k8splugin/internal/auth/auth_test.go
@@ -0,0 +1,47 @@
+/*
+* Copyright 2018 TechMahindra
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+ */
+
+package auth
+
+import (
+ "crypto/tls"
+ "testing"
+)
+
+//Unit test to varify GetTLSconfig func and varify the tls config min version to be 771
+//Assuming cert file name as auth_test.cert
+func TestGetTLSConfig(t *testing.T) {
+ _, err := GetTLSConfig("filedoesnotexist.cert", "filedoesnotexist.cert", "filedoesnotexist.cert")
+ if err == nil {
+ t.Errorf("Test failed, expected error but got none")
+ }
+ tlsConfig, err := GetTLSConfig("../../mock_files/mock_certs/auth_test_certificate.pem",
+ "../../mock_files/mock_certs/auth_test_certificate.pem",
+ "../../mock_files/mock_certs/auth_test_key.pem")
+ if err != nil {
+ t.Fatal("Test Failed as GetTLSConfig returned error: " + err.Error())
+ }
+ expected := tls.VersionTLS12
+ actual := tlsConfig.MinVersion
+ if tlsConfig != nil {
+ if int(actual) != expected {
+ t.Errorf("Test Failed due to version mismatch")
+ }
+ if tlsConfig == nil {
+ t.Errorf("Test Failed due to GetTLSConfig returned nil")
+ }
+ }
+}
diff --git a/src/k8splugin/mock_files/mock_certs/auth_test_certificate.pem b/src/k8splugin/mock_files/mock_certs/auth_test_certificate.pem
new file mode 100644
index 00000000..42e77491
--- /dev/null
+++ b/src/k8splugin/mock_files/mock_certs/auth_test_certificate.pem
@@ -0,0 +1,21 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/src/k8splugin/mock_files/mock_certs/auth_test_key.pem b/src/k8splugin/mock_files/mock_certs/auth_test_key.pem
new file mode 100644
index 00000000..5f01f572
--- /dev/null
+++ b/src/k8splugin/mock_files/mock_certs/auth_test_key.pem
@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----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+-----END PRIVATE KEY-----