Import of https://github.com/ciena/voltctl at commit 40d61fbf3f910ed4017cf67c9c79e8e1f82a33a5

Change-Id: I8464c59e60d76cb8612891db3303878975b5416c
diff --git a/vendor/k8s.io/client-go/kubernetes/typed/extensions/v1beta1/deployment_expansion.go b/vendor/k8s.io/client-go/kubernetes/typed/extensions/v1beta1/deployment_expansion.go
new file mode 100644
index 0000000..24734be
--- /dev/null
+++ b/vendor/k8s.io/client-go/kubernetes/typed/extensions/v1beta1/deployment_expansion.go
@@ -0,0 +1,29 @@
+/*
+Copyright 2016 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 v1beta1
+
+import "k8s.io/api/extensions/v1beta1"
+
+// The DeploymentExpansion interface allows manually adding extra methods to the DeploymentInterface.
+type DeploymentExpansion interface {
+	Rollback(*v1beta1.DeploymentRollback) error
+}
+
+// Rollback applied the provided DeploymentRollback to the named deployment in the current namespace.
+func (c *deployments) Rollback(deploymentRollback *v1beta1.DeploymentRollback) error {
+	return c.client.Post().Namespace(c.ns).Resource("deployments").Name(deploymentRollback.Name).SubResource("rollback").Body(deploymentRollback).Do().Error()
+}