mirror of
https://github.com/kubernetes-sigs/prometheus-adapter.git
synced 2026-04-07 22:25:03 +00:00
vendor: Update vendor logic
This commit is contained in:
Clayton Coleman
parent
c6ac5cbc87
commit
4ca64b85f0
1540 changed files with 265304 additions and 91616 deletions
191
vendor/k8s.io/apiserver/pkg/endpoints/metrics/metrics.go
generated
vendored
191
vendor/k8s.io/apiserver/pkg/endpoints/metrics/metrics.go
generated
vendored
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@ -27,22 +27,22 @@ import (
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"sync"
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"time"
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"github.com/emicklei/go-restful"
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"k8s.io/apimachinery/pkg/apis/meta/v1/validation"
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"k8s.io/apimachinery/pkg/types"
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utilnet "k8s.io/apimachinery/pkg/util/net"
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utilsets "k8s.io/apimachinery/pkg/util/sets"
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"k8s.io/apiserver/pkg/endpoints/request"
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"k8s.io/apiserver/pkg/features"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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restful "github.com/emicklei/go-restful"
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"github.com/prometheus/client_golang/prometheus"
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compbasemetrics "k8s.io/component-base/metrics"
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"k8s.io/component-base/metrics/legacyregistry"
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)
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// resettableCollector is the interface implemented by prometheus.MetricVec
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// that can be used by Prometheus to collect metrics and reset their values.
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type resettableCollector interface {
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prometheus.Collector
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compbasemetrics.Registerable
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Reset()
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}
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@ -50,13 +50,22 @@ const (
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APIServerComponent string = "apiserver"
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)
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/*
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* By default, all the following metrics are defined as falling under
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* ALPHA stability level https://github.com/kubernetes/enhancements/blob/master/keps/sig-instrumentation/20190404-kubernetes-control-plane-metrics-stability.md#stability-classes)
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*
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* Promoting the stability level of the metric is a responsibility of the component owner, since it
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* involves explicitly acknowledging support for the metric across multiple releases, in accordance with
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* the metric stability policy.
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*/
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var (
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// TODO(a-robinson): Add unit tests for the handling of these metrics once
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// the upstream library supports it.
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requestCounter = prometheus.NewCounterVec(
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prometheus.CounterOpts{
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Name: "apiserver_request_total",
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Help: "Counter of apiserver requests broken out for each verb, dry run value, group, version, resource, scope, component, client, and HTTP response contentType and code.",
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requestCounter = compbasemetrics.NewCounterVec(
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&compbasemetrics.CounterOpts{
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Name: "apiserver_request_total",
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Help: "Counter of apiserver requests broken out for each verb, dry run value, group, version, resource, scope, component, client, and HTTP response contentType and code.",
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StabilityLevel: compbasemetrics.ALPHA,
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},
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// The label_name contentType doesn't follow the label_name convention defined here:
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// https://github.com/kubernetes/community/blob/master/contributors/devel/sig-instrumentation/instrumentation.md
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@ -64,22 +73,25 @@ var (
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// should be all lowercase and separated by underscores.
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[]string{"verb", "dry_run", "group", "version", "resource", "subresource", "scope", "component", "client", "contentType", "code"},
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)
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deprecatedRequestCounter = prometheus.NewCounterVec(
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prometheus.CounterOpts{
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Name: "apiserver_request_count",
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Help: "(Deprecated) Counter of apiserver requests broken out for each verb, group, version, resource, scope, component, client, and HTTP response contentType and code.",
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deprecatedRequestCounter = compbasemetrics.NewCounterVec(
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&compbasemetrics.CounterOpts{
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Name: "apiserver_request_count",
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Help: "Counter of apiserver requests broken out for each verb, group, version, resource, scope, component, client, and HTTP response contentType and code.",
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StabilityLevel: compbasemetrics.ALPHA,
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DeprecatedVersion: "1.14.0",
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},
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[]string{"verb", "group", "version", "resource", "subresource", "scope", "component", "client", "contentType", "code"},
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)
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longRunningRequestGauge = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "apiserver_longrunning_gauge",
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Help: "Gauge of all active long-running apiserver requests broken out by verb, group, version, resource, scope and component. Not all requests are tracked this way.",
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longRunningRequestGauge = compbasemetrics.NewGaugeVec(
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&compbasemetrics.GaugeOpts{
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Name: "apiserver_longrunning_gauge",
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Help: "Gauge of all active long-running apiserver requests broken out by verb, group, version, resource, scope and component. Not all requests are tracked this way.",
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StabilityLevel: compbasemetrics.ALPHA,
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},
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[]string{"verb", "group", "version", "resource", "subresource", "scope", "component"},
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)
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requestLatencies = prometheus.NewHistogramVec(
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prometheus.HistogramOpts{
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requestLatencies = compbasemetrics.NewHistogramVec(
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&compbasemetrics.HistogramOpts{
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Name: "apiserver_request_duration_seconds",
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Help: "Response latency distribution in seconds for each verb, dry run value, group, version, resource, subresource, scope and component.",
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// This metric is used for verifying api call latencies SLO,
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@ -87,69 +99,106 @@ var (
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// Thus we customize buckets significantly, to empower both usecases.
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Buckets: []float64{0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0,
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1.25, 1.5, 1.75, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5, 6, 7, 8, 9, 10, 15, 20, 25, 30, 40, 50, 60},
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StabilityLevel: compbasemetrics.ALPHA,
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},
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[]string{"verb", "dry_run", "group", "version", "resource", "subresource", "scope", "component"},
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)
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deprecatedRequestLatencies = prometheus.NewHistogramVec(
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prometheus.HistogramOpts{
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deprecatedRequestLatencies = compbasemetrics.NewHistogramVec(
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&compbasemetrics.HistogramOpts{
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Name: "apiserver_request_latencies",
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Help: "(Deprecated) Response latency distribution in microseconds for each verb, group, version, resource, subresource, scope and component.",
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Help: "Response latency distribution in microseconds for each verb, group, version, resource, subresource, scope and component.",
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// Use buckets ranging from 125 ms to 8 seconds.
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Buckets: prometheus.ExponentialBuckets(125000, 2.0, 7),
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Buckets: compbasemetrics.ExponentialBuckets(125000, 2.0, 7),
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StabilityLevel: compbasemetrics.ALPHA,
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DeprecatedVersion: "1.14.0",
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},
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[]string{"verb", "group", "version", "resource", "subresource", "scope", "component"},
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)
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deprecatedRequestLatenciesSummary = prometheus.NewSummaryVec(
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prometheus.SummaryOpts{
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deprecatedRequestLatenciesSummary = compbasemetrics.NewSummaryVec(
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&compbasemetrics.SummaryOpts{
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Name: "apiserver_request_latencies_summary",
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Help: "(Deprecated) Response latency summary in microseconds for each verb, group, version, resource, subresource, scope and component.",
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Help: "Response latency summary in microseconds for each verb, group, version, resource, subresource, scope and component.",
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// Make the sliding window of 5h.
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// TODO: The value for this should be based on our SLI definition (medium term).
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MaxAge: 5 * time.Hour,
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MaxAge: 5 * time.Hour,
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StabilityLevel: compbasemetrics.ALPHA,
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DeprecatedVersion: "1.14.0",
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},
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[]string{"verb", "group", "version", "resource", "subresource", "scope", "component"},
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)
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responseSizes = prometheus.NewHistogramVec(
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prometheus.HistogramOpts{
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responseSizes = compbasemetrics.NewHistogramVec(
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&compbasemetrics.HistogramOpts{
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Name: "apiserver_response_sizes",
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Help: "Response size distribution in bytes for each group, version, verb, resource, subresource, scope and component.",
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// Use buckets ranging from 1000 bytes (1KB) to 10^9 bytes (1GB).
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Buckets: prometheus.ExponentialBuckets(1000, 10.0, 7),
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Buckets: compbasemetrics.ExponentialBuckets(1000, 10.0, 7),
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StabilityLevel: compbasemetrics.ALPHA,
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},
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[]string{"verb", "group", "version", "resource", "subresource", "scope", "component"},
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)
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// DroppedRequests is a number of requests dropped with 'Try again later' response"
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DroppedRequests = prometheus.NewCounterVec(
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prometheus.CounterOpts{
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Name: "apiserver_dropped_requests_total",
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Help: "Number of requests dropped with 'Try again later' response",
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DroppedRequests = compbasemetrics.NewCounterVec(
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&compbasemetrics.CounterOpts{
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Name: "apiserver_dropped_requests_total",
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Help: "Number of requests dropped with 'Try again later' response",
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StabilityLevel: compbasemetrics.ALPHA,
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},
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[]string{"requestKind"},
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)
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DeprecatedDroppedRequests = prometheus.NewCounterVec(
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prometheus.CounterOpts{
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Name: "apiserver_dropped_requests",
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Help: "(Deprecated) Number of requests dropped with 'Try again later' response",
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DeprecatedDroppedRequests = compbasemetrics.NewCounterVec(
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&compbasemetrics.CounterOpts{
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Name: "apiserver_dropped_requests",
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Help: "Number of requests dropped with 'Try again later' response",
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StabilityLevel: compbasemetrics.ALPHA,
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DeprecatedVersion: "1.14.0",
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},
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[]string{"requestKind"},
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)
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// RegisteredWatchers is a number of currently registered watchers splitted by resource.
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RegisteredWatchers = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "apiserver_registered_watchers",
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Help: "Number of currently registered watchers for a given resources",
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RegisteredWatchers = compbasemetrics.NewGaugeVec(
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&compbasemetrics.GaugeOpts{
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Name: "apiserver_registered_watchers",
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Help: "Number of currently registered watchers for a given resources",
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StabilityLevel: compbasemetrics.ALPHA,
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},
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[]string{"group", "version", "kind"},
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)
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// Because of volatality of the base metric this is pre-aggregated one. Instead of reporing current usage all the time
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WatchEvents = compbasemetrics.NewCounterVec(
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&compbasemetrics.CounterOpts{
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Name: "apiserver_watch_events_total",
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Help: "Number of events sent in watch clients",
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StabilityLevel: compbasemetrics.ALPHA,
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},
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[]string{"group", "version", "kind"},
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)
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WatchEventsSizes = compbasemetrics.NewHistogramVec(
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&compbasemetrics.HistogramOpts{
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Name: "apiserver_watch_events_sizes",
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Help: "Watch event size distribution in bytes",
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Buckets: compbasemetrics.ExponentialBuckets(1024, 2.0, 8), // 1K, 2K, 4K, 8K, ..., 128K.
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StabilityLevel: compbasemetrics.ALPHA,
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},
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[]string{"group", "version", "kind"},
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)
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// Because of volatility of the base metric this is pre-aggregated one. Instead of reporting current usage all the time
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// it reports maximal usage during the last second.
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currentInflightRequests = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "apiserver_current_inflight_requests",
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Help: "Maximal number of currently used inflight request limit of this apiserver per request kind in last second.",
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currentInflightRequests = compbasemetrics.NewGaugeVec(
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&compbasemetrics.GaugeOpts{
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Name: "apiserver_current_inflight_requests",
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Help: "Maximal number of currently used inflight request limit of this apiserver per request kind in last second.",
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StabilityLevel: compbasemetrics.ALPHA,
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},
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[]string{"requestKind"},
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)
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requestTerminationsTotal = compbasemetrics.NewCounterVec(
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&compbasemetrics.CounterOpts{
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Name: "apiserver_request_terminations_total",
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Help: "Number of requests which apiserver terminated in self-defense.",
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StabilityLevel: compbasemetrics.ALPHA,
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},
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[]string{"verb", "group", "version", "resource", "subresource", "scope", "component", "code"},
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)
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kubectlExeRegexp = regexp.MustCompile(`^.*((?i:kubectl\.exe))`)
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metrics = []resettableCollector{
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@ -163,7 +212,10 @@ var (
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DroppedRequests,
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DeprecatedDroppedRequests,
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RegisteredWatchers,
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WatchEvents,
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WatchEventsSizes,
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currentInflightRequests,
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requestTerminationsTotal,
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}
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)
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@ -180,7 +232,7 @@ var registerMetrics sync.Once
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func Register() {
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registerMetrics.Do(func() {
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for _, metric := range metrics {
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prometheus.MustRegister(metric)
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legacyregistry.MustRegister(metric)
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}
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})
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}
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@ -197,18 +249,25 @@ func UpdateInflightRequestMetrics(nonmutating, mutating int) {
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currentInflightRequests.WithLabelValues(MutatingKind).Set(float64(mutating))
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}
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// Record records a single request to the standard metrics endpoints. For use by handlers that perform their own
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// processing. All API paths should use InstrumentRouteFunc implicitly. Use this instead of MonitorRequest if
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// you already have a RequestInfo object.
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func Record(req *http.Request, requestInfo *request.RequestInfo, component, contentType string, code int, responseSizeInBytes int, elapsed time.Duration) {
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// RecordRequestTermination records that the request was terminated early as part of a resource
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// preservation or apiserver self-defense mechanism (e.g. timeouts, maxinflight throttling,
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// proxyHandler errors). RecordRequestTermination should only be called zero or one times
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// per request.
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func RecordRequestTermination(req *http.Request, requestInfo *request.RequestInfo, component string, code int) {
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if requestInfo == nil {
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requestInfo = &request.RequestInfo{Verb: req.Method, Path: req.URL.Path}
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}
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scope := CleanScope(requestInfo)
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// We don't use verb from <requestInfo>, as for the healthy path
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// MonitorRequest is called from InstrumentRouteFunc which is registered
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// in installer.go with predefined list of verbs (different than those
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// translated to RequestInfo).
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// However, we need to tweak it e.g. to differentiate GET from LIST.
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verb := canonicalVerb(strings.ToUpper(req.Method), scope)
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if requestInfo.IsResourceRequest {
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MonitorRequest(req, strings.ToUpper(requestInfo.Verb), requestInfo.APIGroup, requestInfo.APIVersion, requestInfo.Resource, requestInfo.Subresource, scope, component, contentType, code, responseSizeInBytes, elapsed)
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requestTerminationsTotal.WithLabelValues(cleanVerb(verb, req), requestInfo.APIGroup, requestInfo.APIVersion, requestInfo.Resource, requestInfo.Subresource, scope, component, codeToString(code)).Inc()
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} else {
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MonitorRequest(req, strings.ToUpper(requestInfo.Verb), "", "", "", requestInfo.Path, scope, component, contentType, code, responseSizeInBytes, elapsed)
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requestTerminationsTotal.WithLabelValues(cleanVerb(verb, req), "", "", "", requestInfo.Path, scope, component, codeToString(code)).Inc()
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}
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}
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@ -218,9 +277,14 @@ func RecordLongRunning(req *http.Request, requestInfo *request.RequestInfo, comp
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if requestInfo == nil {
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requestInfo = &request.RequestInfo{Verb: req.Method, Path: req.URL.Path}
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}
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var g prometheus.Gauge
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var g compbasemetrics.GaugeMetric
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scope := CleanScope(requestInfo)
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reportedVerb := cleanVerb(strings.ToUpper(requestInfo.Verb), req)
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// We don't use verb from <requestInfo>, as for the healthy path
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// MonitorRequest is called from InstrumentRouteFunc which is registered
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// in installer.go with predefined list of verbs (different than those
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// translated to RequestInfo).
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// However, we need to tweak it e.g. to differentiate GET from LIST.
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reportedVerb := cleanVerb(canonicalVerb(strings.ToUpper(req.Method), scope), req)
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if requestInfo.IsResourceRequest {
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g = longRunningRequestGauge.WithLabelValues(reportedVerb, requestInfo.APIGroup, requestInfo.APIVersion, requestInfo.Resource, requestInfo.Subresource, scope, component)
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} else {
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@ -236,7 +300,8 @@ func RecordLongRunning(req *http.Request, requestInfo *request.RequestInfo, comp
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func MonitorRequest(req *http.Request, verb, group, version, resource, subresource, scope, component, contentType string, httpCode, respSize int, elapsed time.Duration) {
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reportedVerb := cleanVerb(verb, req)
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dryRun := cleanDryRun(req.URL)
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client := cleanUserAgent(utilnet.GetHTTPClient(req))
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// blank out client string here, in order to avoid cardinality issues
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client := ""
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elapsedMicroseconds := float64(elapsed / time.Microsecond)
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elapsedSeconds := elapsed.Seconds()
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requestCounter.WithLabelValues(reportedVerb, dryRun, group, version, resource, subresource, scope, component, client, contentType, codeToString(httpCode)).Inc()
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@ -312,6 +377,18 @@ func CleanScope(requestInfo *request.RequestInfo) string {
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return ""
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}
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func canonicalVerb(verb string, scope string) string {
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switch verb {
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case "GET", "HEAD":
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if scope != "resource" {
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return "LIST"
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}
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return "GET"
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default:
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return verb
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}
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}
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func cleanVerb(verb string, request *http.Request) string {
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reportedVerb := verb
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if verb == "LIST" {
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