Fix cross-build

pkg/kubelet/cadvisor/helpers_unsupported.go

@@ -0,0 +1,34 @@
+// +build !linux linux,!cgo
+
+/*
+Copyright 2017 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 cadvisor
+
+import "errors"
+
+type unsupportedImageFsInfoProvider struct{}
+
+// ImageFsInfoLabel returns the image fs label for the configured runtime.
+// For remote runtimes, it handles additional runtimes natively understood by cAdvisor.
+func (i *unsupportedImageFsInfoProvider) ImageFsInfoLabel() (string, error) {
+	return "", errors.New("unsupported")
+}
+
+// NewImageFsInfoProvider returns a provider for the specified runtime configuration.
+func NewImageFsInfoProvider(runtime, runtimeEndpoint string) ImageFsInfoProvider {
+	return &unsupportedImageFsInfoProvider{}
+}