add build tags to legacy provider code and make it possible to build kube-controller-manager without any legacyproviders or without particular legacy providers

pkg/cloudprovider/providers/doc.go

@@ -0,0 +1,17 @@
+/*
+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 cloudprovider

pkg/cloudprovider/providers/openstack/doc.go

@@ -0,0 +1,17 @@
+/*
+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 openstack

pkg/cloudprovider/providers/openstack/metadata.go

@@ -1,3 +1,5 @@
+// +build !nolegacyproviders
+
 /*
 Copyright 2016 The Kubernetes Authors.
 

pkg/cloudprovider/providers/openstack/metadata_test.go

@@ -1,3 +1,5 @@
+// +build !nolegacyproviders
+
 /*
 Copyright 2016 The Kubernetes Authors.
 

pkg/cloudprovider/providers/openstack/openstack.go

@@ -1,3 +1,5 @@
+// +build !nolegacyproviders
+
 /*
 Copyright 2014 The Kubernetes Authors.
 

pkg/cloudprovider/providers/openstack/openstack_client.go

@@ -1,3 +1,5 @@
+// +build !nolegacyproviders
+
 /*
 Copyright 2017 The Kubernetes Authors.
 

pkg/cloudprovider/providers/openstack/openstack_instances.go

@@ -1,3 +1,5 @@
+// +build !nolegacyproviders
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
@@ -23,9 +25,9 @@ import (
 
 	"github.com/gophercloud/gophercloud"
 	"github.com/gophercloud/gophercloud/openstack/compute/v2/servers"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/klog"
 
-	"k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/types"
 	cloudprovider "k8s.io/cloud-provider"
 )

pkg/cloudprovider/providers/openstack/openstack_loadbalancer.go

@@ -1,3 +1,5 @@
+// +build !nolegacyproviders
+
 /*
 Copyright 2016 The Kubernetes Authors.
 
@@ -39,7 +41,7 @@ import (
 	"github.com/gophercloud/gophercloud/pagination"
 	"k8s.io/klog"
 
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/apimachinery/pkg/util/wait"

pkg/cloudprovider/providers/openstack/openstack_metrics.go

@@ -1,3 +1,5 @@
+// +build !nolegacyproviders
+
 /*
 Copyright 2017 The Kubernetes Authors.
 

pkg/cloudprovider/providers/openstack/openstack_routes.go

@@ -1,3 +1,5 @@
+// +build !nolegacyproviders
+
 /*
 Copyright 2016 The Kubernetes Authors.
 

pkg/cloudprovider/providers/openstack/openstack_routes_test.go

@@ -1,3 +1,5 @@
+// +build !nolegacyproviders
+
 /*
 Copyright 2016 The Kubernetes Authors.
 

pkg/cloudprovider/providers/openstack/openstack_test.go

@@ -1,3 +1,5 @@
+// +build !nolegacyproviders
+
 /*
 Copyright 2014 The Kubernetes Authors.
 
@@ -29,7 +31,7 @@ import (
 
 	"github.com/gophercloud/gophercloud"
 	"github.com/gophercloud/gophercloud/openstack/compute/v2/servers"
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 
 	"k8s.io/apimachinery/pkg/api/resource"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"

pkg/cloudprovider/providers/openstack/openstack_volumes.go

@@ -1,3 +1,5 @@
+// +build !nolegacyproviders
+
 /*
 Copyright 2016 The Kubernetes Authors.
 

pkg/cloudprovider/providers/providers.go

@@ -1,3 +1,5 @@
+// +build !nolegacyproviders
+
 /*
 Copyright 2015 The Kubernetes Authors.