Add generated file

This PR adds generated files under pkg/client and vendor folder.

vendor/k8s.io/kubernetes/pkg/cloudprovider/providers/azure/auth/BUILD

@@ -0,0 +1,28 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = ["azure_auth.go"],
+    importpath = "k8s.io/kubernetes/pkg/cloudprovider/providers/azure/auth",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//vendor/github.com/Azure/go-autorest/autorest/adal:go_default_library",
+        "//vendor/github.com/Azure/go-autorest/autorest/azure:go_default_library",
+        "//vendor/github.com/golang/glog:go_default_library",
+        "//vendor/golang.org/x/crypto/pkcs12:go_default_library",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)

vendor/k8s.io/kubernetes/pkg/cloudprovider/providers/azure/auth/azure_auth.go

@@ -0,0 +1,124 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+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/rsa"
+	"crypto/x509"
+	"fmt"
+	"io/ioutil"
+
+	"github.com/Azure/go-autorest/autorest/adal"
+	"github.com/Azure/go-autorest/autorest/azure"
+	"github.com/golang/glog"
+	"golang.org/x/crypto/pkcs12"
+)
+
+// AzureAuthConfig holds auth related part of cloud config
+type AzureAuthConfig struct {
+	// The cloud environment identifier. Takes values from https://github.com/Azure/go-autorest/blob/ec5f4903f77ed9927ac95b19ab8e44ada64c1356/autorest/azure/environments.go#L13
+	Cloud string `json:"cloud" yaml:"cloud"`
+	// The AAD Tenant ID for the Subscription that the cluster is deployed in
+	TenantID string `json:"tenantId" yaml:"tenantId"`
+	// The ClientID for an AAD application with RBAC access to talk to Azure RM APIs
+	AADClientID string `json:"aadClientId" yaml:"aadClientId"`
+	// The ClientSecret for an AAD application with RBAC access to talk to Azure RM APIs
+	AADClientSecret string `json:"aadClientSecret" yaml:"aadClientSecret"`
+	// The path of a client certificate for an AAD application with RBAC access to talk to Azure RM APIs
+	AADClientCertPath string `json:"aadClientCertPath" yaml:"aadClientCertPath"`
+	// The password of the client certificate for an AAD application with RBAC access to talk to Azure RM APIs
+	AADClientCertPassword string `json:"aadClientCertPassword" yaml:"aadClientCertPassword"`
+	// Use managed service identity for the virtual machine to access Azure ARM APIs
+	UseManagedIdentityExtension bool `json:"useManagedIdentityExtension" yaml:"useManagedIdentityExtension"`
+	// The ID of the Azure Subscription that the cluster is deployed in
+	SubscriptionID string `json:"subscriptionId" yaml:"subscriptionId"`
+}
+
+// GetServicePrincipalToken creates a new service principal token based on the configuration
+func GetServicePrincipalToken(config *AzureAuthConfig, env *azure.Environment) (*adal.ServicePrincipalToken, error) {
+	oauthConfig, err := adal.NewOAuthConfig(env.ActiveDirectoryEndpoint, config.TenantID)
+	if err != nil {
+		return nil, fmt.Errorf("creating the OAuth config: %v", err)
+	}
+
+	if config.UseManagedIdentityExtension {
+		glog.V(2).Infoln("azure: using managed identity extension to retrieve access token")
+		msiEndpoint, err := adal.GetMSIVMEndpoint()
+		if err != nil {
+			return nil, fmt.Errorf("Getting the managed service identity endpoint: %v", err)
+		}
+		return adal.NewServicePrincipalTokenFromMSI(
+			msiEndpoint,
+			env.ServiceManagementEndpoint)
+	}
+
+	if len(config.AADClientSecret) > 0 {
+		glog.V(2).Infoln("azure: using client_id+client_secret to retrieve access token")
+		return adal.NewServicePrincipalToken(
+			*oauthConfig,
+			config.AADClientID,
+			config.AADClientSecret,
+			env.ServiceManagementEndpoint)
+	}
+
+	if len(config.AADClientCertPath) > 0 && len(config.AADClientCertPassword) > 0 {
+		glog.V(2).Infoln("azure: using jwt client_assertion (client_cert+client_private_key) to retrieve access token")
+		certData, err := ioutil.ReadFile(config.AADClientCertPath)
+		if err != nil {
+			return nil, fmt.Errorf("reading the client certificate from file %s: %v", config.AADClientCertPath, err)
+		}
+		certificate, privateKey, err := decodePkcs12(certData, config.AADClientCertPassword)
+		if err != nil {
+			return nil, fmt.Errorf("decoding the client certificate: %v", err)
+		}
+		return adal.NewServicePrincipalTokenFromCertificate(
+			*oauthConfig,
+			config.AADClientID,
+			certificate,
+			privateKey,
+			env.ServiceManagementEndpoint)
+	}
+
+	return nil, fmt.Errorf("No credentials provided for AAD application %s", config.AADClientID)
+}
+
+// ParseAzureEnvironment returns azure environment by name
+func ParseAzureEnvironment(cloudName string) (*azure.Environment, error) {
+	var env azure.Environment
+	var err error
+	if cloudName == "" {
+		env = azure.PublicCloud
+	} else {
+		env, err = azure.EnvironmentFromName(cloudName)
+	}
+	return &env, err
+}
+
+// decodePkcs12 decodes a PKCS#12 client certificate by extracting the public certificate and
+// the private RSA key
+func decodePkcs12(pkcs []byte, password string) (*x509.Certificate, *rsa.PrivateKey, error) {
+	privateKey, certificate, err := pkcs12.Decode(pkcs, password)
+	if err != nil {
+		return nil, nil, fmt.Errorf("decoding the PKCS#12 client certificate: %v", err)
+	}
+	rsaPrivateKey, isRsaKey := privateKey.(*rsa.PrivateKey)
+	if !isRsaKey {
+		return nil, nil, fmt.Errorf("PKCS#12 certificate must contain a RSA private key")
+	}
+
+	return certificate, rsaPrivateKey, nil
+}