Switch to new ClientConfig for Azure cloud provider

Author: feiskyer

Godeps/LICENSES

@@ -68,13 +68,13 @@ go_library(
         "//staging/src/k8s.io/component-base/metrics:go_default_library",
         "//staging/src/k8s.io/component-base/metrics/legacyregistry:go_default_library",
         "//staging/src/k8s.io/legacy-cloud-providers/azure/auth:go_default_library",
+        "//staging/src/k8s.io/legacy-cloud-providers/azure/clients:go_default_library",
         "//staging/src/k8s.io/legacy-cloud-providers/azure/retry:go_default_library",
         "//vendor/github.com/Azure/azure-sdk-for-go/services/compute/mgmt/2019-07-01/compute:go_default_library",
         "//vendor/github.com/Azure/azure-sdk-for-go/services/network/mgmt/2019-06-01/network:go_default_library",
         "//vendor/github.com/Azure/azure-sdk-for-go/services/storage/mgmt/2019-06-01/storage:go_default_library",
         "//vendor/github.com/Azure/azure-sdk-for-go/storage:go_default_library",
         "//vendor/github.com/Azure/go-autorest/autorest:go_default_library",
-        "//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/Azure/go-autorest/autorest/to:go_default_library",
         "//vendor/github.com/rubiojr/go-vhd/vhd:go_default_library",
@@ -118,6 +118,7 @@ go_test(
         "//staging/src/k8s.io/cloud-provider:go_default_library",
         "//staging/src/k8s.io/cloud-provider/service/helpers:go_default_library",
         "//staging/src/k8s.io/legacy-cloud-providers/azure/auth:go_default_library",
+        "//staging/src/k8s.io/legacy-cloud-providers/azure/clients:go_default_library",
         "//staging/src/k8s.io/legacy-cloud-providers/azure/retry:go_default_library",
         "//vendor/github.com/Azure/azure-sdk-for-go/services/compute/mgmt/2019-07-01/compute:go_default_library",
         "//vendor/github.com/Azure/azure-sdk-for-go/services/network/mgmt/2019-06-01/network:go_default_library",
@@ -141,6 +142,7 @@ filegroup(
     srcs = [
         ":package-srcs",
         "//staging/src/k8s.io/legacy-cloud-providers/azure/auth:all-srcs",
+        "//staging/src/k8s.io/legacy-cloud-providers/azure/clients:all-srcs",
         "//staging/src/k8s.io/legacy-cloud-providers/azure/retry:all-srcs",
     ],
     tags = ["automanaged"],

staging/src/k8s.io/legacy-cloud-providers/azure/BUILD

@@ -8,7 +8,10 @@ load(
 
 go_library(
     name = "go_default_library",
-    srcs = ["azure_auth.go"],
+    srcs = [
+        "azure_auth.go",
+        "doc.go",
+    ],
     importmap = "k8s.io/kubernetes/vendor/k8s.io/legacy-cloud-providers/azure/auth",
     importpath = "k8s.io/legacy-cloud-providers/azure/auth",
     visibility = ["//visibility:public"],

staging/src/k8s.io/legacy-cloud-providers/azure/auth/BUILD

@@ -0,0 +1,18 @@
+/*
+Copyright 2019 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 provides a general libraty to authorize Azure ARM clients.
+package auth // import "k8s.io/legacy-cloud-providers/azure/auth"

staging/src/k8s.io/legacy-cloud-providers/azure/auth/doc.go

@@ -45,6 +45,8 @@ import (
 	cloudprovider "k8s.io/cloud-provider"
 	"k8s.io/klog"
 	"k8s.io/legacy-cloud-providers/azure/auth"
+	azclients "k8s.io/legacy-cloud-providers/azure/clients"
+	"k8s.io/legacy-cloud-providers/azure/retry"
 	"sigs.k8s.io/yaml"
 )
 
@@ -448,13 +450,23 @@ func (az *Cloud) InitializeCloudFromConfig(config *Config, fromSecret bool) erro
 	}
 
 	// Initialize Azure clients.
-	azClientConfig := &azClientConfig{
-		subscriptionID:                 config.SubscriptionID,
-		resourceManagerEndpoint:        env.ResourceManagerEndpoint,
-		servicePrincipalToken:          servicePrincipalToken,
+	azClientConfig := &azclients.ClientConfig{
+		Location:                       config.Location,
+		SubscriptionID:                 config.SubscriptionID,
+		ResourceManagerEndpoint:        env.ResourceManagerEndpoint,
+		ServicePrincipalToken:          servicePrincipalToken,
 		CloudProviderBackoffRetries:    config.CloudProviderBackoffRetries,
 		CloudProviderBackoffDuration:   config.CloudProviderBackoffDuration,
 		ShouldOmitCloudProviderBackoff: config.shouldOmitCloudProviderBackoff(),
+		Backoff:                        &retry.Backoff{Steps: 1},
+	}
+	if config.CloudProviderBackoff {
+		azClientConfig.Backoff = &retry.Backoff{
+			Steps:    config.CloudProviderBackoffRetries,
+			Factor:   config.CloudProviderBackoffExponent,
+			Duration: time.Duration(config.CloudProviderBackoffDuration) * time.Second,
+			Jitter:   config.CloudProviderBackoffJitter,
+		}
 	}
 	az.DisksClient = newAzDisksClient(azClientConfig.WithRateLimiter(config.DiskRateLimit))
 	az.SnapshotsClient = newSnapshotsClient(azClientConfig.WithRateLimiter(config.SnapshotRateLimit))