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

Change-Id: I8464c59e60d76cb8612891db3303878975b5416c
diff --git a/vendor/k8s.io/apimachinery/pkg/fields/requirements.go b/vendor/k8s.io/apimachinery/pkg/fields/requirements.go
new file mode 100644
index 0000000..70d94de
--- /dev/null
+++ b/vendor/k8s.io/apimachinery/pkg/fields/requirements.go
@@ -0,0 +1,30 @@
+/*
+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 fields
+
+import "k8s.io/apimachinery/pkg/selection"
+
+// Requirements is AND of all requirements.
+type Requirements []Requirement
+
+// Requirement contains a field, a value, and an operator that relates the field and value.
+// This is currently for reading internal selection information of field selector.
+type Requirement struct {
+	Operator selection.Operator
+	Field    string
+	Value    string
+}