Add Brightbox cloudprovider to cluster autoscaler

This is the minimal modification to the
existing files to hook in the Brightbox cluster autoscaler
provider.

cluster-autoscaler/README.md

@@ -17,6 +17,7 @@ You should also take a look at the notes and "gotchas" for your specific cloud p
 * [Azure](./cloudprovider/azure/README.md)
 * [AWS](./cloudprovider/aws/README.md)
 * [BaiduCloud](./cloudprovider/baiducloud/README.md)
+* [Brightbox](./cloudprovider/brightbox/README.md)
 * [CloudStack](./cloudprovider/cloudstack/README.md)
 * [HuaweiCloud](./cloudprovider/huaweicloud/README.md)
 * [Hetzner](./cloudprovider/hetzner/README.md)
@@ -150,6 +151,7 @@ Supported cloud providers:
 * AWS https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cloudprovider/aws/README.md
 * Azure https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cloudprovider/azure/README.md
 * Alibaba Cloud https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cloudprovider/alicloud/README.md
+* Brightbox https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cloudprovider/brightbox/README.md
 * OpenStack Magnum https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cloudprovider/magnum/README.md
 * DigitalOcean https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cloudprovider/digitalocean/README.md
 * CloudStack https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cloudprovider/cloudstack/README.md

cluster-autoscaler/cloudprovider/builder/builder_all.go

@@ -1,4 +1,4 @@
-// +build !gce,!aws,!azure,!kubemark,!alicloud,!magnum,!digitalocean,!clusterapi,!huaweicloud,!ionoscloud,!linode,!hetzner,!bizflycloud
+// +build !gce,!aws,!azure,!kubemark,!alicloud,!magnum,!digitalocean,!clusterapi,!huaweicloud,!ionoscloud,!linode,!hetzner,!bizflycloud,!brightbox
 
 /*
 Copyright 2018 The Kubernetes Authors.
@@ -25,6 +25,7 @@ import (
 	"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/azure"
 	"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/baiducloud"
 	"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/bizflycloud"
+	"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/brightbox"
 	"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/cloudstack"
 	"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/clusterapi"
 	"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/digitalocean"
@@ -58,6 +59,7 @@ var AvailableCloudProviders = []string{
 	cloudprovider.IonoscloudProviderName,
 	cloudprovider.LinodeProviderName,
 	cloudprovider.BizflyCloudProviderName,
+	cloudprovider.BrightboxProviderName,
 }
 
 // DefaultCloudProvider is GCE.
@@ -79,6 +81,8 @@ func buildCloudProvider(opts config.AutoscalingOptions, do cloudprovider.NodeGro
 		return cloudstack.BuildCloudStack(opts, do, rl)
 	case cloudprovider.BaiducloudProviderName:
 		return baiducloud.BuildBaiducloud(opts, do, rl)
+	case cloudprovider.BrightboxProviderName:
+		return brightbox.BuildBrightbox(opts, do, rl)
 	case cloudprovider.DigitalOceanProviderName:
 		return digitalocean.BuildDigitalOcean(opts, do, rl)
 	case cloudprovider.ExoscaleProviderName:

cluster-autoscaler/cloudprovider/cloud_provider.go

@@ -38,6 +38,8 @@ const (
 	BaiducloudProviderName = "baiducloud"
 	// BizflyCloudProviderName gets the provider name of bizflycloud
 	BizflyCloudProviderName = "bizflycloud"
+	// BrightboxProviderName gets the provider name of brightbox
+	BrightboxProviderName = "brightbox"
 	// CloudStackProviderName gets the provider name of cloudstack
 	CloudStackProviderName = "cloudstack"
 	// ClusterAPIProviderName gets the provider name of clusterapi