126 lines
3.6 KiB
Go
126 lines
3.6 KiB
Go
/*
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Copyright 2019 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 v1alpha1
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import (
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"time"
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"k8s.io/component-base/metrics"
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summary "k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1"
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"k8s.io/kubernetes/pkg/kubelet/server/stats"
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)
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// This file contains a series of deprecated metrics which we emit them by endpoint `/metrics/resource/v1alpha1`.
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// These metrics have been adapted to new endpoint `/metrics/resource` as well as new `Desc`s.
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// In general, we don't need to maintain these deprecated metrics any more.
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// TODO(RainbowMango): Remove this file in release 1.20.0+.
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// Version is the string representation of the version of this configuration
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const Version = "v1alpha1"
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var (
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nodeCPUUsageDesc = metrics.NewDesc("node_cpu_usage_seconds_total",
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"Cumulative cpu time consumed by the node in core-seconds",
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nil,
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nil,
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metrics.ALPHA,
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"1.18.0")
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nodeMemoryUsageDesc = metrics.NewDesc("node_memory_working_set_bytes",
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"Current working set of the node in bytes",
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nil,
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nil,
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metrics.ALPHA,
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"1.18.0")
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containerCPUUsageDesc = metrics.NewDesc("container_cpu_usage_seconds_total",
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"Cumulative cpu time consumed by the container in core-seconds",
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[]string{"container", "pod", "namespace"},
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nil,
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metrics.ALPHA,
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"1.18.0")
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containerMemoryUsageDesc = metrics.NewDesc("container_memory_working_set_bytes",
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"Current working set of the container in bytes",
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[]string{"container", "pod", "namespace"},
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nil,
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metrics.ALPHA,
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"1.18.0")
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)
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// getNodeCPUMetrics returns CPU utilization of a node.
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func getNodeCPUMetrics(s summary.NodeStats) (*float64, time.Time) {
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if s.CPU == nil {
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return nil, time.Time{}
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}
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v := float64(*s.CPU.UsageCoreNanoSeconds) / float64(time.Second)
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return &v, s.CPU.Time.Time
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}
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// getNodeMemoryMetrics returns memory utilization of a node.
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func getNodeMemoryMetrics(s summary.NodeStats) (*float64, time.Time) {
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if s.Memory == nil {
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return nil, time.Time{}
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}
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v := float64(*s.Memory.WorkingSetBytes)
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return &v, s.Memory.Time.Time
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}
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// getContainerCPUMetrics returns CPU utilization of a container.
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func getContainerCPUMetrics(s summary.ContainerStats) (*float64, time.Time) {
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if s.CPU == nil {
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return nil, time.Time{}
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}
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v := float64(*s.CPU.UsageCoreNanoSeconds) / float64(time.Second)
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return &v, s.CPU.Time.Time
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}
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// getContainerMemoryMetrics returns memory utilization of a container.
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func getContainerMemoryMetrics(s summary.ContainerStats) (*float64, time.Time) {
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if s.Memory == nil {
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return nil, time.Time{}
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}
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v := float64(*s.Memory.WorkingSetBytes)
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return &v, s.Memory.Time.Time
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}
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// Config is the v1alpha1 resource metrics definition
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func Config() stats.ResourceMetricsConfig {
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return stats.ResourceMetricsConfig{
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NodeMetrics: []stats.NodeResourceMetric{
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{
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Desc: nodeCPUUsageDesc,
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ValueFn: getNodeCPUMetrics,
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},
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{
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Desc: nodeMemoryUsageDesc,
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ValueFn: getNodeMemoryMetrics,
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},
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},
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ContainerMetrics: []stats.ContainerResourceMetric{
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{
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Desc: containerCPUUsageDesc,
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ValueFn: getContainerCPUMetrics,
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},
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{
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Desc: containerMemoryUsageDesc,
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ValueFn: getContainerMemoryMetrics,
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},
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},
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}
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}
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