Add support for basic cgroup management

pkg/kubelet/cm/cgroup_manager_unsupported.go

@@ -0,0 +1,42 @@
+// +build !linux
+
+/*
+Copyright 2016 The Kubernetes Authors All rights reserved.
+
+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 cm
+
+import "fmt"
+
+type unsupportedCgroupManager struct{}
+
+// Make sure that unsupportedCgroupManager implements the CgroupManager interface
+var _ CgroupManager = &unsupportedCgroupManager{}
+
+func NewCgroupManager(_ *cgroupSubsystems) CgroupManager {
+	return &unsupportedCgroupManager{}
+}
+
+func (m *unsupportedCgroupManager) Destroy(_ *CgroupConfig) error {
+	return nil
+}
+
+func (m *unsupportedCgroupManager) Update(_ *CgroupConfig) error {
+	return nil
+}
+
+func (m *unsupportedCgroupManager) Create(_ *CgroupConfig) error {
+	return fmt.Errorf("Cgroup Manager is not supported in this build")
+}