summary_sys_containers_windows.go

Documentation: k8s.io/kubernetes/pkg/kubelet/server/stats

     1  //go:build windows
     2  // +build windows
     3  
     4  /*
     5  Copyright 2018 The Kubernetes Authors.
     6  
     7  Licensed under the Apache License, Version 2.0 (the "License");
     8  you may not use this file except in compliance with the License.
     9  You may obtain a copy of the License at
    10  
    11      http://www.apache.org/licenses/LICENSE-2.0
    12  
    13  Unless required by applicable law or agreed to in writing, software
    14  distributed under the License is distributed on an "AS IS" BASIS,
    15  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    16  See the License for the specific language governing permissions and
    17  limitations under the License.
    18  */
    19  
    20  package stats
    21  
    22  import (
    23  	"time"
    24  
    25  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    26  	statsapi "k8s.io/kubelet/pkg/apis/stats/v1alpha1"
    27  	"k8s.io/kubernetes/pkg/kubelet/cm"
    28  )
    29  
    30  func (sp *summaryProviderImpl) GetSystemContainersStats(nodeConfig cm.NodeConfig, podStats []statsapi.PodStats, updateStats bool) (stats []statsapi.ContainerStats) {
    31  	stats = append(stats, sp.getSystemPodsCPUAndMemoryStats(nodeConfig, podStats, updateStats))
    32  	return stats
    33  }
    34  
    35  func (sp *summaryProviderImpl) GetSystemContainersCPUAndMemoryStats(nodeConfig cm.NodeConfig, podStats []statsapi.PodStats, updateStats bool) (stats []statsapi.ContainerStats) {
    36  	stats = append(stats, sp.getSystemPodsCPUAndMemoryStats(nodeConfig, podStats, updateStats))
    37  	return stats
    38  }
    39  
    40  func (sp *summaryProviderImpl) getSystemPodsCPUAndMemoryStats(nodeConfig cm.NodeConfig, podStats []statsapi.PodStats, updateStats bool) statsapi.ContainerStats {
    41  	now := metav1.NewTime(time.Now())
    42  	podsSummary := statsapi.ContainerStats{
    43  		StartTime: now,
    44  		CPU:       &statsapi.CPUStats{},
    45  		Memory:    &statsapi.MemoryStats{},
    46  		Name:      statsapi.SystemContainerPods,
    47  	}
    48  
    49  	// Sum up all pod's stats.
    50  	var usageCoreNanoSeconds uint64
    51  	var usageNanoCores uint64
    52  	var availableBytes uint64
    53  	var usageBytes uint64
    54  	var workingSetBytes uint64
    55  	for _, pod := range podStats {
    56  		if pod.CPU != nil {
    57  			podsSummary.CPU.Time = now
    58  			if pod.CPU.UsageCoreNanoSeconds != nil {
    59  				usageCoreNanoSeconds = usageCoreNanoSeconds + *pod.CPU.UsageCoreNanoSeconds
    60  			}
    61  			if pod.CPU.UsageNanoCores != nil {
    62  				usageNanoCores = usageNanoCores + *pod.CPU.UsageNanoCores
    63  			}
    64  		}
    65  
    66  		if pod.Memory != nil {
    67  			podsSummary.Memory.Time = now
    68  			if pod.Memory.AvailableBytes != nil {
    69  				availableBytes = availableBytes + *pod.Memory.AvailableBytes
    70  			}
    71  			if pod.Memory.UsageBytes != nil {
    72  				usageBytes = usageBytes + *pod.Memory.UsageBytes
    73  			}
    74  			if pod.Memory.WorkingSetBytes != nil {
    75  				workingSetBytes = workingSetBytes + *pod.Memory.WorkingSetBytes
    76  			}
    77  		}
    78  	}
    79  
    80  	// Set results only if they are not zero.
    81  	if usageCoreNanoSeconds != 0 {
    82  		podsSummary.CPU.UsageCoreNanoSeconds = &usageCoreNanoSeconds
    83  	}
    84  	if usageNanoCores != 0 {
    85  		podsSummary.CPU.UsageNanoCores = &usageNanoCores
    86  	}
    87  	if availableBytes != 0 {
    88  		podsSummary.Memory.AvailableBytes = &availableBytes
    89  	}
    90  	if usageBytes != 0 {
    91  		podsSummary.Memory.UsageBytes = &usageBytes
    92  	}
    93  	if workingSetBytes != 0 {
    94  		podsSummary.Memory.WorkingSetBytes = &workingSetBytes
    95  	}
    96  
    97  	return podsSummary
    98  }
    99
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