mirror of
https://github.com/k3s-io/kubernetes.git
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1018 lines
36 KiB
Go
1018 lines
36 KiB
Go
// Copyright 2014 Google Inc. All Rights Reserved.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package metrics
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import (
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"fmt"
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"regexp"
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"time"
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"github.com/google/cadvisor/container"
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info "github.com/google/cadvisor/info/v1"
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"github.com/golang/glog"
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"github.com/prometheus/client_golang/prometheus"
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)
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// infoProvider will usually be manager.Manager, but can be swapped out for testing.
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type infoProvider interface {
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// SubcontainersInfo provides information about all subcontainers of the
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// specified container including itself.
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SubcontainersInfo(containerName string, query *info.ContainerInfoRequest) ([]*info.ContainerInfo, error)
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// GetVersionInfo provides information about the version.
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GetVersionInfo() (*info.VersionInfo, error)
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// GetMachineInfo provides information about the machine.
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GetMachineInfo() (*info.MachineInfo, error)
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}
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// metricValue describes a single metric value for a given set of label values
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// within a parent containerMetric.
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type metricValue struct {
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value float64
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labels []string
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}
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type metricValues []metricValue
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// asFloat64 converts a uint64 into a float64.
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func asFloat64(v uint64) float64 { return float64(v) }
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// asNanosecondsToSeconds converts nanoseconds into a float64 representing seconds.
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func asNanosecondsToSeconds(v uint64) float64 {
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return float64(v) / float64(time.Second)
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}
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// fsValues is a helper method for assembling per-filesystem stats.
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func fsValues(fsStats []info.FsStats, valueFn func(*info.FsStats) float64) metricValues {
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values := make(metricValues, 0, len(fsStats))
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for _, stat := range fsStats {
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values = append(values, metricValue{
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value: valueFn(&stat),
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labels: []string{stat.Device},
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})
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}
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return values
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}
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// ioValues is a helper method for assembling per-disk and per-filesystem stats.
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func ioValues(ioStats []info.PerDiskStats, ioType string, ioValueFn func(uint64) float64, fsStats []info.FsStats, valueFn func(*info.FsStats) float64) metricValues {
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values := make(metricValues, 0, len(ioStats)+len(fsStats))
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for _, stat := range ioStats {
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values = append(values, metricValue{
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value: ioValueFn(stat.Stats[ioType]),
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labels: []string{stat.Device},
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})
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}
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for _, stat := range fsStats {
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values = append(values, metricValue{
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value: valueFn(&stat),
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labels: []string{stat.Device},
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})
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}
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return values
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}
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// containerMetric describes a multi-dimensional metric used for exposing a
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// certain type of container statistic.
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type containerMetric struct {
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name string
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help string
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valueType prometheus.ValueType
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extraLabels []string
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condition func(s info.ContainerSpec) bool
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getValues func(s *info.ContainerStats) metricValues
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}
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func (cm *containerMetric) desc(baseLabels []string) *prometheus.Desc {
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return prometheus.NewDesc(cm.name, cm.help, append(baseLabels, cm.extraLabels...), nil)
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}
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// ContainerLabelsFunc defines all base labels and their values attached to
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// each metric exported by cAdvisor.
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type ContainerLabelsFunc func(*info.ContainerInfo) map[string]string
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// PrometheusCollector implements prometheus.Collector.
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type PrometheusCollector struct {
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infoProvider infoProvider
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errors prometheus.Gauge
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containerMetrics []containerMetric
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containerLabelsFunc ContainerLabelsFunc
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}
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// NewPrometheusCollector returns a new PrometheusCollector. The passed
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// ContainerLabelsFunc specifies which base labels will be attached to all
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// exported metrics. If left to nil, the DefaultContainerLabels function
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// will be used instead.
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func NewPrometheusCollector(i infoProvider, f ContainerLabelsFunc, includedMetrics container.MetricSet) *PrometheusCollector {
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if f == nil {
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f = DefaultContainerLabels
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}
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c := &PrometheusCollector{
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infoProvider: i,
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containerLabelsFunc: f,
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errors: prometheus.NewGauge(prometheus.GaugeOpts{
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Namespace: "container",
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Name: "scrape_error",
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Help: "1 if there was an error while getting container metrics, 0 otherwise",
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}),
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containerMetrics: []containerMetric{
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{
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name: "container_last_seen",
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help: "Last time a container was seen by the exporter",
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valueType: prometheus.GaugeValue,
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(time.Now().Unix())}}
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},
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},
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},
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}
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if includedMetrics.Has(container.CpuUsageMetrics) {
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c.containerMetrics = append(c.containerMetrics, []containerMetric{
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{
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name: "container_cpu_user_seconds_total",
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help: "Cumulative user cpu time consumed in seconds.",
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valueType: prometheus.CounterValue,
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Cpu.Usage.User) / float64(time.Second)}}
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},
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}, {
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name: "container_cpu_system_seconds_total",
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help: "Cumulative system cpu time consumed in seconds.",
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valueType: prometheus.CounterValue,
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Cpu.Usage.System) / float64(time.Second)}}
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},
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}, {
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name: "container_cpu_usage_seconds_total",
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help: "Cumulative cpu time consumed in seconds.",
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valueType: prometheus.CounterValue,
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extraLabels: []string{"cpu"},
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getValues: func(s *info.ContainerStats) metricValues {
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if len(s.Cpu.Usage.PerCpu) == 0 {
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if s.Cpu.Usage.Total > 0 {
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return metricValues{{
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value: float64(s.Cpu.Usage.Total) / float64(time.Second),
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labels: []string{"total"},
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}}
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}
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}
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values := make(metricValues, 0, len(s.Cpu.Usage.PerCpu))
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for i, value := range s.Cpu.Usage.PerCpu {
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if value > 0 {
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values = append(values, metricValue{
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value: float64(value) / float64(time.Second),
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labels: []string{fmt.Sprintf("cpu%02d", i)},
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})
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}
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}
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return values
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},
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}, {
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name: "container_cpu_cfs_periods_total",
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help: "Number of elapsed enforcement period intervals.",
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valueType: prometheus.CounterValue,
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condition: func(s info.ContainerSpec) bool { return s.Cpu.Quota != 0 },
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Cpu.CFS.Periods)}}
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},
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}, {
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name: "container_cpu_cfs_throttled_periods_total",
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help: "Number of throttled period intervals.",
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valueType: prometheus.CounterValue,
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condition: func(s info.ContainerSpec) bool { return s.Cpu.Quota != 0 },
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Cpu.CFS.ThrottledPeriods)}}
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},
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}, {
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name: "container_cpu_cfs_throttled_seconds_total",
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help: "Total time duration the container has been throttled.",
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valueType: prometheus.CounterValue,
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condition: func(s info.ContainerSpec) bool { return s.Cpu.Quota != 0 },
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Cpu.CFS.ThrottledTime) / float64(time.Second)}}
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},
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},
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}...)
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}
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if includedMetrics.Has(container.ProcessSchedulerMetrics) {
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c.containerMetrics = append(c.containerMetrics, []containerMetric{
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{
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name: "container_cpu_schedstat_run_seconds_total",
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help: "Time duration the processes of the container have run on the CPU.",
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valueType: prometheus.CounterValue,
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Cpu.Schedstat.RunTime) / float64(time.Second)}}
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},
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}, {
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name: "container_cpu_schedstat_runqueue_seconds_total",
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help: "Time duration processes of the container have been waiting on a runqueue.",
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valueType: prometheus.CounterValue,
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Cpu.Schedstat.RunqueueTime) / float64(time.Second)}}
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},
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}, {
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name: "container_cpu_schedstat_run_periods_total",
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help: "Number of times processes of the cgroup have run on the cpu",
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valueType: prometheus.CounterValue,
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Cpu.Schedstat.RunPeriods)}}
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},
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},
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}...)
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}
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if includedMetrics.Has(container.CpuLoadMetrics) {
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c.containerMetrics = append(c.containerMetrics, []containerMetric{
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{
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name: "container_cpu_load_average_10s",
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help: "Value of container cpu load average over the last 10 seconds.",
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valueType: prometheus.GaugeValue,
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Cpu.LoadAverage)}}
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},
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}, {
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name: "container_tasks_state",
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help: "Number of tasks in given state",
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extraLabels: []string{"state"},
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valueType: prometheus.GaugeValue,
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{
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{
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value: float64(s.TaskStats.NrSleeping),
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labels: []string{"sleeping"},
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},
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{
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value: float64(s.TaskStats.NrRunning),
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labels: []string{"running"},
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},
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{
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value: float64(s.TaskStats.NrStopped),
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labels: []string{"stopped"},
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},
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{
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value: float64(s.TaskStats.NrUninterruptible),
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labels: []string{"uninterruptible"},
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},
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{
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value: float64(s.TaskStats.NrIoWait),
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labels: []string{"iowaiting"},
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},
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}
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},
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},
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}...)
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}
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if includedMetrics.Has(container.MemoryUsageMetrics) {
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c.containerMetrics = append(c.containerMetrics, []containerMetric{
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{
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name: "container_memory_cache",
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help: "Number of bytes of page cache memory.",
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valueType: prometheus.GaugeValue,
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Memory.Cache)}}
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},
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}, {
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name: "container_memory_rss",
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help: "Size of RSS in bytes.",
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valueType: prometheus.GaugeValue,
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Memory.RSS)}}
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},
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}, {
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name: "container_memory_mapped_file",
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help: "Size of memory mapped files in bytes.",
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valueType: prometheus.GaugeValue,
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Memory.MappedFile)}}
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},
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}, {
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name: "container_memory_swap",
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help: "Container swap usage in bytes.",
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valueType: prometheus.GaugeValue,
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Memory.Swap)}}
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},
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}, {
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name: "container_memory_failcnt",
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help: "Number of memory usage hits limits",
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valueType: prometheus.CounterValue,
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Memory.Failcnt)}}
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},
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}, {
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name: "container_memory_usage_bytes",
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help: "Current memory usage in bytes, including all memory regardless of when it was accessed",
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valueType: prometheus.GaugeValue,
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Memory.Usage)}}
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},
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},
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{
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name: "container_memory_max_usage_bytes",
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help: "Maximum memory usage recorded in bytes",
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valueType: prometheus.GaugeValue,
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Memory.MaxUsage)}}
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},
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}, {
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name: "container_memory_working_set_bytes",
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help: "Current working set in bytes.",
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valueType: prometheus.GaugeValue,
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{{value: float64(s.Memory.WorkingSet)}}
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},
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}, {
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name: "container_memory_failures_total",
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help: "Cumulative count of memory allocation failures.",
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valueType: prometheus.CounterValue,
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extraLabels: []string{"type", "scope"},
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getValues: func(s *info.ContainerStats) metricValues {
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return metricValues{
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{
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value: float64(s.Memory.ContainerData.Pgfault),
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labels: []string{"pgfault", "container"},
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},
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{
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value: float64(s.Memory.ContainerData.Pgmajfault),
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labels: []string{"pgmajfault", "container"},
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},
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{
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value: float64(s.Memory.HierarchicalData.Pgfault),
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labels: []string{"pgfault", "hierarchy"},
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},
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{
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value: float64(s.Memory.HierarchicalData.Pgmajfault),
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labels: []string{"pgmajfault", "hierarchy"},
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},
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}
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},
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},
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}...)
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}
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if includedMetrics.Has(container.AcceleratorUsageMetrics) {
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c.containerMetrics = append(c.containerMetrics, []containerMetric{
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{
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name: "container_accelerator_memory_total_bytes",
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help: "Total accelerator memory.",
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valueType: prometheus.GaugeValue,
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extraLabels: []string{"make", "model", "acc_id"},
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getValues: func(s *info.ContainerStats) metricValues {
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values := make(metricValues, 0, len(s.Accelerators))
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for _, value := range s.Accelerators {
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values = append(values, metricValue{
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value: float64(value.MemoryTotal),
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labels: []string{value.Make, value.Model, value.ID},
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})
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}
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return values
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},
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}, {
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name: "container_accelerator_memory_used_bytes",
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help: "Total accelerator memory allocated.",
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valueType: prometheus.GaugeValue,
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extraLabels: []string{"make", "model", "acc_id"},
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getValues: func(s *info.ContainerStats) metricValues {
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values := make(metricValues, 0, len(s.Accelerators))
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for _, value := range s.Accelerators {
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values = append(values, metricValue{
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value: float64(value.MemoryUsed),
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labels: []string{value.Make, value.Model, value.ID},
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})
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}
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return values
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},
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}, {
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name: "container_accelerator_duty_cycle",
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help: "Percent of time over the past sample period during which the accelerator was actively processing.",
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valueType: prometheus.GaugeValue,
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extraLabels: []string{"make", "model", "acc_id"},
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getValues: func(s *info.ContainerStats) metricValues {
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values := make(metricValues, 0, len(s.Accelerators))
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for _, value := range s.Accelerators {
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values = append(values, metricValue{
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value: float64(value.DutyCycle),
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labels: []string{value.Make, value.Model, value.ID},
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})
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}
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return values
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},
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},
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}...)
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}
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if includedMetrics.Has(container.DiskUsageMetrics) {
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c.containerMetrics = append(c.containerMetrics, []containerMetric{
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{
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name: "container_fs_inodes_free",
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help: "Number of available Inodes",
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valueType: prometheus.GaugeValue,
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extraLabels: []string{"device"},
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getValues: func(s *info.ContainerStats) metricValues {
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return fsValues(s.Filesystem, func(fs *info.FsStats) float64 {
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return float64(fs.InodesFree)
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})
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},
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}, {
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name: "container_fs_inodes_total",
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help: "Number of Inodes",
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valueType: prometheus.GaugeValue,
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extraLabels: []string{"device"},
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getValues: func(s *info.ContainerStats) metricValues {
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return fsValues(s.Filesystem, func(fs *info.FsStats) float64 {
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return float64(fs.Inodes)
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})
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},
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}, {
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name: "container_fs_limit_bytes",
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help: "Number of bytes that can be consumed by the container on this filesystem.",
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valueType: prometheus.GaugeValue,
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extraLabels: []string{"device"},
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getValues: func(s *info.ContainerStats) metricValues {
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return fsValues(s.Filesystem, func(fs *info.FsStats) float64 {
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return float64(fs.Limit)
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})
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},
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}, {
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name: "container_fs_usage_bytes",
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help: "Number of bytes that are consumed by the container on this filesystem.",
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valueType: prometheus.GaugeValue,
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extraLabels: []string{"device"},
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getValues: func(s *info.ContainerStats) metricValues {
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return fsValues(s.Filesystem, func(fs *info.FsStats) float64 {
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return float64(fs.Usage)
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})
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},
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},
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}...)
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}
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if includedMetrics.Has(container.DiskIOMetrics) {
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c.containerMetrics = append(c.containerMetrics, []containerMetric{
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{
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name: "container_fs_reads_bytes_total",
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help: "Cumulative count of bytes read",
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valueType: prometheus.CounterValue,
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extraLabels: []string{"device"},
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getValues: func(s *info.ContainerStats) metricValues {
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return ioValues(
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s.DiskIo.IoServiceBytes, "Read", asFloat64,
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nil, nil,
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)
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},
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}, {
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name: "container_fs_reads_total",
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help: "Cumulative count of reads completed",
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valueType: prometheus.CounterValue,
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extraLabels: []string{"device"},
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getValues: func(s *info.ContainerStats) metricValues {
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return ioValues(
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s.DiskIo.IoServiced, "Read", asFloat64,
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s.Filesystem, func(fs *info.FsStats) float64 {
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return float64(fs.ReadsCompleted)
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},
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)
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},
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}, {
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name: "container_fs_sector_reads_total",
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help: "Cumulative count of sector reads completed",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"device"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
return ioValues(
|
|
s.DiskIo.Sectors, "Read", asFloat64,
|
|
s.Filesystem, func(fs *info.FsStats) float64 {
|
|
return float64(fs.SectorsRead)
|
|
},
|
|
)
|
|
},
|
|
}, {
|
|
name: "container_fs_reads_merged_total",
|
|
help: "Cumulative count of reads merged",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"device"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
return ioValues(
|
|
s.DiskIo.IoMerged, "Read", asFloat64,
|
|
s.Filesystem, func(fs *info.FsStats) float64 {
|
|
return float64(fs.ReadsMerged)
|
|
},
|
|
)
|
|
},
|
|
}, {
|
|
name: "container_fs_read_seconds_total",
|
|
help: "Cumulative count of seconds spent reading",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"device"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
return ioValues(
|
|
s.DiskIo.IoServiceTime, "Read", asNanosecondsToSeconds,
|
|
s.Filesystem, func(fs *info.FsStats) float64 {
|
|
return float64(fs.ReadTime) / float64(time.Second)
|
|
},
|
|
)
|
|
},
|
|
}, {
|
|
name: "container_fs_writes_bytes_total",
|
|
help: "Cumulative count of bytes written",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"device"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
return ioValues(
|
|
s.DiskIo.IoServiceBytes, "Write", asFloat64,
|
|
nil, nil,
|
|
)
|
|
},
|
|
}, {
|
|
name: "container_fs_writes_total",
|
|
help: "Cumulative count of writes completed",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"device"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
return ioValues(
|
|
s.DiskIo.IoServiced, "Write", asFloat64,
|
|
s.Filesystem, func(fs *info.FsStats) float64 {
|
|
return float64(fs.WritesCompleted)
|
|
},
|
|
)
|
|
},
|
|
}, {
|
|
name: "container_fs_sector_writes_total",
|
|
help: "Cumulative count of sector writes completed",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"device"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
return ioValues(
|
|
s.DiskIo.Sectors, "Write", asFloat64,
|
|
s.Filesystem, func(fs *info.FsStats) float64 {
|
|
return float64(fs.SectorsWritten)
|
|
},
|
|
)
|
|
},
|
|
}, {
|
|
name: "container_fs_writes_merged_total",
|
|
help: "Cumulative count of writes merged",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"device"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
return ioValues(
|
|
s.DiskIo.IoMerged, "Write", asFloat64,
|
|
s.Filesystem, func(fs *info.FsStats) float64 {
|
|
return float64(fs.WritesMerged)
|
|
},
|
|
)
|
|
},
|
|
}, {
|
|
name: "container_fs_write_seconds_total",
|
|
help: "Cumulative count of seconds spent writing",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"device"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
return ioValues(
|
|
s.DiskIo.IoServiceTime, "Write", asNanosecondsToSeconds,
|
|
s.Filesystem, func(fs *info.FsStats) float64 {
|
|
return float64(fs.WriteTime) / float64(time.Second)
|
|
},
|
|
)
|
|
},
|
|
}, {
|
|
name: "container_fs_io_current",
|
|
help: "Number of I/Os currently in progress",
|
|
valueType: prometheus.GaugeValue,
|
|
extraLabels: []string{"device"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
return ioValues(
|
|
s.DiskIo.IoQueued, "Total", asFloat64,
|
|
s.Filesystem, func(fs *info.FsStats) float64 {
|
|
return float64(fs.IoInProgress)
|
|
},
|
|
)
|
|
},
|
|
}, {
|
|
name: "container_fs_io_time_seconds_total",
|
|
help: "Cumulative count of seconds spent doing I/Os",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"device"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
return ioValues(
|
|
s.DiskIo.IoServiceTime, "Total", asNanosecondsToSeconds,
|
|
s.Filesystem, func(fs *info.FsStats) float64 {
|
|
return float64(float64(fs.IoTime) / float64(time.Second))
|
|
},
|
|
)
|
|
},
|
|
}, {
|
|
name: "container_fs_io_time_weighted_seconds_total",
|
|
help: "Cumulative weighted I/O time in seconds",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"device"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
return fsValues(s.Filesystem, func(fs *info.FsStats) float64 {
|
|
return float64(fs.WeightedIoTime) / float64(time.Second)
|
|
})
|
|
},
|
|
},
|
|
}...)
|
|
}
|
|
if includedMetrics.Has(container.NetworkUsageMetrics) {
|
|
c.containerMetrics = append(c.containerMetrics, []containerMetric{
|
|
{
|
|
name: "container_network_receive_bytes_total",
|
|
help: "Cumulative count of bytes received",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"interface"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
values := make(metricValues, 0, len(s.Network.Interfaces))
|
|
for _, value := range s.Network.Interfaces {
|
|
values = append(values, metricValue{
|
|
value: float64(value.RxBytes),
|
|
labels: []string{value.Name},
|
|
})
|
|
}
|
|
return values
|
|
},
|
|
}, {
|
|
name: "container_network_receive_packets_total",
|
|
help: "Cumulative count of packets received",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"interface"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
values := make(metricValues, 0, len(s.Network.Interfaces))
|
|
for _, value := range s.Network.Interfaces {
|
|
values = append(values, metricValue{
|
|
value: float64(value.RxPackets),
|
|
labels: []string{value.Name},
|
|
})
|
|
}
|
|
return values
|
|
},
|
|
}, {
|
|
name: "container_network_receive_packets_dropped_total",
|
|
help: "Cumulative count of packets dropped while receiving",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"interface"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
values := make(metricValues, 0, len(s.Network.Interfaces))
|
|
for _, value := range s.Network.Interfaces {
|
|
values = append(values, metricValue{
|
|
value: float64(value.RxDropped),
|
|
labels: []string{value.Name},
|
|
})
|
|
}
|
|
return values
|
|
},
|
|
}, {
|
|
name: "container_network_receive_errors_total",
|
|
help: "Cumulative count of errors encountered while receiving",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"interface"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
values := make(metricValues, 0, len(s.Network.Interfaces))
|
|
for _, value := range s.Network.Interfaces {
|
|
values = append(values, metricValue{
|
|
value: float64(value.RxErrors),
|
|
labels: []string{value.Name},
|
|
})
|
|
}
|
|
return values
|
|
},
|
|
}, {
|
|
name: "container_network_transmit_bytes_total",
|
|
help: "Cumulative count of bytes transmitted",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"interface"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
values := make(metricValues, 0, len(s.Network.Interfaces))
|
|
for _, value := range s.Network.Interfaces {
|
|
values = append(values, metricValue{
|
|
value: float64(value.TxBytes),
|
|
labels: []string{value.Name},
|
|
})
|
|
}
|
|
return values
|
|
},
|
|
}, {
|
|
name: "container_network_transmit_packets_total",
|
|
help: "Cumulative count of packets transmitted",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"interface"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
values := make(metricValues, 0, len(s.Network.Interfaces))
|
|
for _, value := range s.Network.Interfaces {
|
|
values = append(values, metricValue{
|
|
value: float64(value.TxPackets),
|
|
labels: []string{value.Name},
|
|
})
|
|
}
|
|
return values
|
|
},
|
|
}, {
|
|
name: "container_network_transmit_packets_dropped_total",
|
|
help: "Cumulative count of packets dropped while transmitting",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"interface"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
values := make(metricValues, 0, len(s.Network.Interfaces))
|
|
for _, value := range s.Network.Interfaces {
|
|
values = append(values, metricValue{
|
|
value: float64(value.TxDropped),
|
|
labels: []string{value.Name},
|
|
})
|
|
}
|
|
return values
|
|
},
|
|
}, {
|
|
name: "container_network_transmit_errors_total",
|
|
help: "Cumulative count of errors encountered while transmitting",
|
|
valueType: prometheus.CounterValue,
|
|
extraLabels: []string{"interface"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
values := make(metricValues, 0, len(s.Network.Interfaces))
|
|
for _, value := range s.Network.Interfaces {
|
|
values = append(values, metricValue{
|
|
value: float64(value.TxErrors),
|
|
labels: []string{value.Name},
|
|
})
|
|
}
|
|
return values
|
|
},
|
|
},
|
|
}...)
|
|
}
|
|
if includedMetrics.Has(container.NetworkTcpUsageMetrics) {
|
|
c.containerMetrics = append(c.containerMetrics, []containerMetric{
|
|
{
|
|
name: "container_network_tcp_usage_total",
|
|
help: "tcp connection usage statistic for container",
|
|
valueType: prometheus.GaugeValue,
|
|
extraLabels: []string{"tcp_state"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
return metricValues{
|
|
{
|
|
value: float64(s.Network.Tcp.Established),
|
|
labels: []string{"established"},
|
|
},
|
|
{
|
|
value: float64(s.Network.Tcp.SynSent),
|
|
labels: []string{"synsent"},
|
|
},
|
|
{
|
|
value: float64(s.Network.Tcp.SynRecv),
|
|
labels: []string{"synrecv"},
|
|
},
|
|
{
|
|
value: float64(s.Network.Tcp.FinWait1),
|
|
labels: []string{"finwait1"},
|
|
},
|
|
{
|
|
value: float64(s.Network.Tcp.FinWait2),
|
|
labels: []string{"finwait2"},
|
|
},
|
|
{
|
|
value: float64(s.Network.Tcp.TimeWait),
|
|
labels: []string{"timewait"},
|
|
},
|
|
{
|
|
value: float64(s.Network.Tcp.Close),
|
|
labels: []string{"close"},
|
|
},
|
|
{
|
|
value: float64(s.Network.Tcp.CloseWait),
|
|
labels: []string{"closewait"},
|
|
},
|
|
{
|
|
value: float64(s.Network.Tcp.LastAck),
|
|
labels: []string{"lastack"},
|
|
},
|
|
{
|
|
value: float64(s.Network.Tcp.Listen),
|
|
labels: []string{"listen"},
|
|
},
|
|
{
|
|
value: float64(s.Network.Tcp.Closing),
|
|
labels: []string{"closing"},
|
|
},
|
|
}
|
|
},
|
|
},
|
|
}...)
|
|
}
|
|
if includedMetrics.Has(container.NetworkUdpUsageMetrics) {
|
|
c.containerMetrics = append(c.containerMetrics, []containerMetric{
|
|
{
|
|
name: "container_network_udp_usage_total",
|
|
help: "udp connection usage statistic for container",
|
|
valueType: prometheus.GaugeValue,
|
|
extraLabels: []string{"udp_state"},
|
|
getValues: func(s *info.ContainerStats) metricValues {
|
|
return metricValues{
|
|
{
|
|
value: float64(s.Network.Udp.Listen),
|
|
labels: []string{"listen"},
|
|
},
|
|
{
|
|
value: float64(s.Network.Udp.Dropped),
|
|
labels: []string{"dropped"},
|
|
},
|
|
{
|
|
value: float64(s.Network.Udp.RxQueued),
|
|
labels: []string{"rxqueued"},
|
|
},
|
|
{
|
|
value: float64(s.Network.Udp.TxQueued),
|
|
labels: []string{"txqueued"},
|
|
},
|
|
}
|
|
},
|
|
},
|
|
}...)
|
|
}
|
|
|
|
return c
|
|
}
|
|
|
|
var (
|
|
versionInfoDesc = prometheus.NewDesc("cadvisor_version_info", "A metric with a constant '1' value labeled by kernel version, OS version, docker version, cadvisor version & cadvisor revision.", []string{"kernelVersion", "osVersion", "dockerVersion", "cadvisorVersion", "cadvisorRevision"}, nil)
|
|
machineInfoCoresDesc = prometheus.NewDesc("machine_cpu_cores", "Number of CPU cores on the machine.", nil, nil)
|
|
machineInfoMemoryDesc = prometheus.NewDesc("machine_memory_bytes", "Amount of memory installed on the machine.", nil, nil)
|
|
)
|
|
|
|
// Describe describes all the metrics ever exported by cadvisor. It
|
|
// implements prometheus.PrometheusCollector.
|
|
func (c *PrometheusCollector) Describe(ch chan<- *prometheus.Desc) {
|
|
c.errors.Describe(ch)
|
|
for _, cm := range c.containerMetrics {
|
|
ch <- cm.desc([]string{})
|
|
}
|
|
ch <- versionInfoDesc
|
|
ch <- machineInfoCoresDesc
|
|
ch <- machineInfoMemoryDesc
|
|
}
|
|
|
|
// Collect fetches the stats from all containers and delivers them as
|
|
// Prometheus metrics. It implements prometheus.PrometheusCollector.
|
|
func (c *PrometheusCollector) Collect(ch chan<- prometheus.Metric) {
|
|
c.errors.Set(0)
|
|
c.collectMachineInfo(ch)
|
|
c.collectVersionInfo(ch)
|
|
c.collectContainersInfo(ch)
|
|
c.errors.Collect(ch)
|
|
}
|
|
|
|
const (
|
|
// ContainerLabelPrefix is the prefix added to all container labels.
|
|
ContainerLabelPrefix = "container_label_"
|
|
// ContainerEnvPrefix is the prefix added to all env variable labels.
|
|
ContainerEnvPrefix = "container_env_"
|
|
// LabelID is the name of the id label.
|
|
LabelID = "id"
|
|
// LabelName is the name of the name label.
|
|
LabelName = "name"
|
|
// LabelImage is the name of the image label.
|
|
LabelImage = "image"
|
|
)
|
|
|
|
// DefaultContainerLabels implements ContainerLabelsFunc. It exports the
|
|
// container name, first alias, image name as well as all its env and label
|
|
// values.
|
|
func DefaultContainerLabels(container *info.ContainerInfo) map[string]string {
|
|
set := map[string]string{LabelID: container.Name}
|
|
if len(container.Aliases) > 0 {
|
|
set[LabelName] = container.Aliases[0]
|
|
}
|
|
if image := container.Spec.Image; len(image) > 0 {
|
|
set[LabelImage] = image
|
|
}
|
|
for k, v := range container.Spec.Labels {
|
|
set[ContainerLabelPrefix+k] = v
|
|
}
|
|
for k, v := range container.Spec.Envs {
|
|
set[ContainerEnvPrefix+k] = v
|
|
}
|
|
return set
|
|
}
|
|
|
|
// BaseContainerLabels implements ContainerLabelsFunc. It only exports the
|
|
// container name, first alias, and image name.
|
|
func BaseContainerLabels(container *info.ContainerInfo) map[string]string {
|
|
set := map[string]string{LabelID: container.Name}
|
|
if len(container.Aliases) > 0 {
|
|
set[LabelName] = container.Aliases[0]
|
|
}
|
|
if image := container.Spec.Image; len(image) > 0 {
|
|
set[LabelImage] = image
|
|
}
|
|
return set
|
|
}
|
|
|
|
func (c *PrometheusCollector) collectContainersInfo(ch chan<- prometheus.Metric) {
|
|
containers, err := c.infoProvider.SubcontainersInfo("/", &info.ContainerInfoRequest{NumStats: 1})
|
|
if err != nil {
|
|
c.errors.Set(1)
|
|
glog.Warningf("Couldn't get containers: %s", err)
|
|
return
|
|
}
|
|
rawLabels := map[string]struct{}{}
|
|
for _, container := range containers {
|
|
for l := range c.containerLabelsFunc(container) {
|
|
rawLabels[l] = struct{}{}
|
|
}
|
|
}
|
|
for _, container := range containers {
|
|
values := make([]string, 0, len(rawLabels))
|
|
labels := make([]string, 0, len(rawLabels))
|
|
containerLabels := c.containerLabelsFunc(container)
|
|
for l := range rawLabels {
|
|
labels = append(labels, sanitizeLabelName(l))
|
|
values = append(values, containerLabels[l])
|
|
}
|
|
|
|
// Container spec
|
|
desc := prometheus.NewDesc("container_start_time_seconds", "Start time of the container since unix epoch in seconds.", labels, nil)
|
|
ch <- prometheus.MustNewConstMetric(desc, prometheus.GaugeValue, float64(container.Spec.CreationTime.Unix()), values...)
|
|
|
|
if container.Spec.HasCpu {
|
|
desc = prometheus.NewDesc("container_spec_cpu_period", "CPU period of the container.", labels, nil)
|
|
ch <- prometheus.MustNewConstMetric(desc, prometheus.GaugeValue, float64(container.Spec.Cpu.Period), values...)
|
|
if container.Spec.Cpu.Quota != 0 {
|
|
desc = prometheus.NewDesc("container_spec_cpu_quota", "CPU quota of the container.", labels, nil)
|
|
ch <- prometheus.MustNewConstMetric(desc, prometheus.GaugeValue, float64(container.Spec.Cpu.Quota), values...)
|
|
}
|
|
desc := prometheus.NewDesc("container_spec_cpu_shares", "CPU share of the container.", labels, nil)
|
|
ch <- prometheus.MustNewConstMetric(desc, prometheus.GaugeValue, float64(container.Spec.Cpu.Limit), values...)
|
|
|
|
}
|
|
if container.Spec.HasMemory {
|
|
desc := prometheus.NewDesc("container_spec_memory_limit_bytes", "Memory limit for the container.", labels, nil)
|
|
ch <- prometheus.MustNewConstMetric(desc, prometheus.GaugeValue, specMemoryValue(container.Spec.Memory.Limit), values...)
|
|
desc = prometheus.NewDesc("container_spec_memory_swap_limit_bytes", "Memory swap limit for the container.", labels, nil)
|
|
ch <- prometheus.MustNewConstMetric(desc, prometheus.GaugeValue, specMemoryValue(container.Spec.Memory.SwapLimit), values...)
|
|
desc = prometheus.NewDesc("container_spec_memory_reservation_limit_bytes", "Memory reservation limit for the container.", labels, nil)
|
|
ch <- prometheus.MustNewConstMetric(desc, prometheus.GaugeValue, specMemoryValue(container.Spec.Memory.Reservation), values...)
|
|
}
|
|
|
|
// Now for the actual metrics
|
|
if len(container.Stats) == 0 {
|
|
continue
|
|
}
|
|
stats := container.Stats[0]
|
|
for _, cm := range c.containerMetrics {
|
|
if cm.condition != nil && !cm.condition(container.Spec) {
|
|
continue
|
|
}
|
|
desc := cm.desc(labels)
|
|
for _, metricValue := range cm.getValues(stats) {
|
|
ch <- prometheus.MustNewConstMetric(desc, cm.valueType, float64(metricValue.value), append(values, metricValue.labels...)...)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func (c *PrometheusCollector) collectVersionInfo(ch chan<- prometheus.Metric) {
|
|
versionInfo, err := c.infoProvider.GetVersionInfo()
|
|
if err != nil {
|
|
c.errors.Set(1)
|
|
glog.Warningf("Couldn't get version info: %s", err)
|
|
return
|
|
}
|
|
ch <- prometheus.MustNewConstMetric(versionInfoDesc, prometheus.GaugeValue, 1, []string{versionInfo.KernelVersion, versionInfo.ContainerOsVersion, versionInfo.DockerVersion, versionInfo.CadvisorVersion, versionInfo.CadvisorRevision}...)
|
|
}
|
|
|
|
func (c *PrometheusCollector) collectMachineInfo(ch chan<- prometheus.Metric) {
|
|
machineInfo, err := c.infoProvider.GetMachineInfo()
|
|
if err != nil {
|
|
c.errors.Set(1)
|
|
glog.Warningf("Couldn't get machine info: %s", err)
|
|
return
|
|
}
|
|
ch <- prometheus.MustNewConstMetric(machineInfoCoresDesc, prometheus.GaugeValue, float64(machineInfo.NumCores))
|
|
ch <- prometheus.MustNewConstMetric(machineInfoMemoryDesc, prometheus.GaugeValue, float64(machineInfo.MemoryCapacity))
|
|
}
|
|
|
|
// Size after which we consider memory to be "unlimited". This is not
|
|
// MaxInt64 due to rounding by the kernel.
|
|
const maxMemorySize = uint64(1 << 62)
|
|
|
|
func specMemoryValue(v uint64) float64 {
|
|
if v > maxMemorySize {
|
|
return 0
|
|
}
|
|
return float64(v)
|
|
}
|
|
|
|
var invalidLabelCharRE = regexp.MustCompile(`[^a-zA-Z0-9_]`)
|
|
|
|
// sanitizeLabelName replaces anything that doesn't match
|
|
// client_label.LabelNameRE with an underscore.
|
|
func sanitizeLabelName(name string) string {
|
|
return invalidLabelCharRE.ReplaceAllString(name, "_")
|
|
}
|