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96 lines
3.5 KiB
Go
96 lines
3.5 KiB
Go
// +build !windows
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/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package stats
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import (
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"k8s.io/klog/v2"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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statsapi "k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1"
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"k8s.io/kubernetes/pkg/kubelet/cm"
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)
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func (sp *summaryProviderImpl) GetSystemContainersStats(nodeConfig cm.NodeConfig, podStats []statsapi.PodStats, updateStats bool) (stats []statsapi.ContainerStats) {
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systemContainers := map[string]struct {
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name string
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forceStatsUpdate bool
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startTime metav1.Time
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}{
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statsapi.SystemContainerKubelet: {name: nodeConfig.KubeletCgroupsName, forceStatsUpdate: false, startTime: sp.kubeletCreationTime},
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statsapi.SystemContainerRuntime: {name: nodeConfig.RuntimeCgroupsName, forceStatsUpdate: false},
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statsapi.SystemContainerMisc: {name: nodeConfig.SystemCgroupsName, forceStatsUpdate: false},
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statsapi.SystemContainerPods: {name: sp.provider.GetPodCgroupRoot(), forceStatsUpdate: updateStats},
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}
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for sys, cont := range systemContainers {
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// skip if cgroup name is undefined (not all system containers are required)
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if cont.name == "" {
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continue
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}
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s, _, err := sp.provider.GetCgroupStats(cont.name, cont.forceStatsUpdate)
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if err != nil {
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klog.Errorf("Failed to get system container stats for %q: %v", cont.name, err)
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continue
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}
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// System containers don't have a filesystem associated with them.
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s.Logs, s.Rootfs = nil, nil
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s.Name = sys
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// if we know the start time of a system container, use that instead of the start time provided by cAdvisor
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if !cont.startTime.IsZero() {
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s.StartTime = cont.startTime
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}
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stats = append(stats, *s)
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}
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return stats
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}
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func (sp *summaryProviderImpl) GetSystemContainersCPUAndMemoryStats(nodeConfig cm.NodeConfig, podStats []statsapi.PodStats, updateStats bool) (stats []statsapi.ContainerStats) {
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systemContainers := map[string]struct {
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name string
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forceStatsUpdate bool
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startTime metav1.Time
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}{
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statsapi.SystemContainerKubelet: {name: nodeConfig.KubeletCgroupsName, forceStatsUpdate: false, startTime: sp.kubeletCreationTime},
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statsapi.SystemContainerRuntime: {name: nodeConfig.RuntimeCgroupsName, forceStatsUpdate: false},
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statsapi.SystemContainerMisc: {name: nodeConfig.SystemCgroupsName, forceStatsUpdate: false},
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statsapi.SystemContainerPods: {name: sp.provider.GetPodCgroupRoot(), forceStatsUpdate: updateStats},
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}
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for sys, cont := range systemContainers {
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// skip if cgroup name is undefined (not all system containers are required)
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if cont.name == "" {
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continue
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}
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s, err := sp.provider.GetCgroupCPUAndMemoryStats(cont.name, cont.forceStatsUpdate)
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if err != nil {
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klog.Errorf("Failed to get system container stats for %q: %v", cont.name, err)
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continue
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}
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s.Name = sys
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// if we know the start time of a system container, use that instead of the start time provided by cAdvisor
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if !cont.startTime.IsZero() {
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s.StartTime = cont.startTime
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}
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stats = append(stats, *s)
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}
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return stats
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}
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