Updating dependency github.com/google/cadvisor to version 6a8d614

Signed-off-by: Davanum Srinivas <davanum@gmail.com>

vendor/github.com/google/cadvisor/stats/BUILD

@@ -2,11 +2,17 @@ load("@io_bazel_rules_go//go:def.bzl", "go_library")
 
 go_library(
     name = "go_default_library",
-    srcs = ["types.go"],
+    srcs = [
+        "noop.go",
+        "types.go",
+    ],
     importmap = "k8s.io/kubernetes/vendor/github.com/google/cadvisor/stats",
     importpath = "github.com/google/cadvisor/stats",
     visibility = ["//visibility:public"],
-    deps = ["//vendor/github.com/google/cadvisor/info/v1:go_default_library"],
+    deps = [
+        "//vendor/github.com/google/cadvisor/info/v1:go_default_library",
+        "//vendor/k8s.io/klog/v2:go_default_library",
+    ],
 )
 
 filegroup(

vendor/github.com/google/cadvisor/stats/noop.go

@@ -0,0 +1,43 @@
+// Copyright 2020 Google Inc. 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.
+
+// Noop perf Manager and Collector.
+package stats
+
+import (
+	v1 "github.com/google/cadvisor/info/v1"
+	"k8s.io/klog/v2"
+)
+
+type NoopManager struct {
+	NoopDestroy
+}
+
+type NoopDestroy struct{}
+
+func (nsd NoopDestroy) Destroy() {
+	klog.V(5).Info("No-op Destroy function called")
+}
+
+func (m *NoopManager) GetCollector(cgroup string) (Collector, error) {
+	return &NoopCollector{}, nil
+}
+
+type NoopCollector struct {
+	NoopDestroy
+}
+
+func (c *NoopCollector) UpdateStats(stats *v1.ContainerStats) error {
+	return nil
+}

vendor/github.com/google/cadvisor/stats/types.go

@@ -18,18 +18,18 @@ package stats
 import info "github.com/google/cadvisor/info/v1"
 
 // This is supposed to store global state about an cAdvisor metrics collector.
-// cAdvisor manager will call Setup() when it starts and Destroy() when it stops.
+// cAdvisor manager will call Destroy() when it stops.
 // For each container detected by the cAdvisor manager, it will call
 // GetCollector() with the devices cgroup path for that container.
 // GetCollector() is supposed to return an object that can update
 // accelerator stats for that container.
 type Manager interface {
-	Setup()
 	Destroy()
 	GetCollector(deviceCgroup string) (Collector, error)
 }
 
 // Collector can update ContainerStats by adding more metrics.
 type Collector interface {
+	Destroy()
 	UpdateStats(*info.ContainerStats) error
 }