Revert "Add network stats for windows node"

This reverts commit f9fa1c6a38.

pkg/kubelet/winstats/BUILD

@@ -4,7 +4,6 @@ go_library(
     name = "go_default_library",
     srcs = [
         "doc.go",
-        "network_stats.go",
         "perfcounter_nodestats.go",
         "perfcounters.go",
         "version.go",

pkg/kubelet/winstats/network_stats.go

@@ -1,67 +0,0 @@
-// +build windows
-
-/*
-Copyright 2019 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 winstats
-
-import (
-	"encoding/json"
-	"os/exec"
-
-	cadvisorapi "github.com/google/cadvisor/info/v1"
-)
-
-// netAdapterStat represents network statistics for an adapter.
-type netAdapterStat struct {
-	Name           string `json:"Name,omitempty"`
-	ReceivedBytes  uint64 `json:"ReceivedBytes,omitempty"`
-	ReceivedErrors uint64 `json:"ReceivedPacketErrors,omitempty"`
-	SentBytes      uint64 `json:"SentBytes,omitempty"`
-	SentErrors     uint64 `json:"OutboundPacketErrors,omitempty"`
-}
-
-// toCadvisorInterfaceStats converts netAdapterStat to cadvisorapi.InterfaceStats.
-func (s *netAdapterStat) toCadvisorInterfaceStats() cadvisorapi.InterfaceStats {
-	return cadvisorapi.InterfaceStats{
-		Name:     s.Name,
-		RxBytes:  s.ReceivedBytes,
-		RxErrors: s.ReceivedErrors,
-		TxBytes:  s.SentBytes,
-		TxErrors: s.SentErrors,
-	}
-}
-
-// getNetAdapterStats gets a list of network adapter statistics.
-func getNetAdapterStats() ([]cadvisorapi.InterfaceStats, error) {
-	rawOutput, err := exec.Command("powershell", "/c", " Get-NetAdapterStatistics | ConvertTo-Json").CombinedOutput()
-	if err != nil {
-		return nil, err
-	}
-
-	var stats []*netAdapterStat
-	err = json.Unmarshal(rawOutput, &stats)
-	if err != nil {
-		return nil, err
-	}
-
-	result := make([]cadvisorapi.InterfaceStats, len(stats))
-	for i := range stats {
-		result[i] = stats[i].toCadvisorInterfaceStats()
-	}
-
-	return result, nil
-}

pkg/kubelet/winstats/winstats.go

@@ -109,16 +109,12 @@ func (c *StatsClient) WinVersionInfo() (*cadvisorapi.VersionInfo, error) {
 
 func (c *StatsClient) createRootContainerInfo() (*cadvisorapiv2.ContainerInfo, error) {
 	nodeMetrics, err := c.client.getNodeMetrics()
+
 	if err != nil {
 		return nil, err
 	}
-
-	netAdapterStats, err := getNetAdapterStats()
-	if err != nil {
-		return nil, err
-	}
-
 	var stats []*cadvisorapiv2.ContainerStats
+
 	stats = append(stats, &cadvisorapiv2.ContainerStats{
 		Timestamp: nodeMetrics.timeStamp,
 		Cpu: &cadvisorapi.CpuStats{
@@ -130,9 +126,6 @@ func (c *StatsClient) createRootContainerInfo() (*cadvisorapiv2.ContainerInfo, e
 			WorkingSet: nodeMetrics.memoryPrivWorkingSetBytes,
 			Usage:      nodeMetrics.memoryCommittedBytes,
 		},
-		Network: &cadvisorapiv2.NetworkStats{
-			Interfaces: netAdapterStats,
-		},
 	})
 
 	nodeInfo := c.client.getNodeInfo()
@@ -141,7 +134,6 @@ func (c *StatsClient) createRootContainerInfo() (*cadvisorapiv2.ContainerInfo, e
 			CreationTime: nodeInfo.startTime,
 			HasCpu:       true,
 			HasMemory:    true,
-			HasNetwork:   true,
 			Memory: cadvisorapiv2.MemorySpec{
 				Limit: nodeInfo.memoryPhysicalCapacityBytes,
 			},

pkg/kubelet/winstats/winstats_test.go

@@ -86,9 +86,8 @@ func TestWinContainerInfos(t *testing.T) {
 	infos := make(map[string]cadvisorapiv2.ContainerInfo)
 	infos["/"] = cadvisorapiv2.ContainerInfo{
 		Spec: cadvisorapiv2.ContainerSpec{
-			HasCpu:     true,
+			HasCpu:    true,
-			HasMemory:  true,
+			HasMemory: true,
-			HasNetwork: true,
 			Memory: cadvisorapiv2.MemorySpec{
 				Limit: 1.6e+10,
 			},
@@ -96,11 +95,7 @@ func TestWinContainerInfos(t *testing.T) {
 		Stats: stats,
 	}
 
-	assert.Equal(t, len(actualRootInfos), len(infos))
+	assert.Equal(t, actualRootInfos, infos)
-	assert.Equal(t, actualRootInfos["/"].Spec, infos["/"].Spec)
-	assert.Equal(t, len(actualRootInfos["/"].Stats), len(infos["/"].Stats))
-	assert.Equal(t, actualRootInfos["/"].Stats[0].Cpu, infos["/"].Stats[0].Cpu)
-	assert.Equal(t, actualRootInfos["/"].Stats[0].Memory, infos["/"].Stats[0].Memory)
 }
 
 func TestWinMachineInfo(t *testing.T) {