mirror of
https://github.com/kubernetes-sigs/prometheus-adapter.git
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vendor: revendor
This commit is contained in:
Sergiusz Urbaniak
parent
269295a414
commit
9f0440be0f
669 changed files with 58447 additions and 20021 deletions
114
vendor/k8s.io/apiserver/pkg/endpoints/metrics/metrics.go
generated
vendored
114
vendor/k8s.io/apiserver/pkg/endpoints/metrics/metrics.go
generated
vendored
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@ -32,6 +32,7 @@ import (
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"k8s.io/apimachinery/pkg/types"
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utilsets "k8s.io/apimachinery/pkg/util/sets"
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"k8s.io/apiserver/pkg/audit"
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"k8s.io/apiserver/pkg/authentication/user"
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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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@ -185,6 +186,36 @@ var (
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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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apiSelfRequestCounter = compbasemetrics.NewCounterVec(
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&compbasemetrics.CounterOpts{
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Name: "apiserver_selfrequest_total",
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Help: "Counter of apiserver self-requests broken out for each verb, API resource and subresource.",
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StabilityLevel: compbasemetrics.ALPHA,
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},
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[]string{"verb", "resource", "subresource"},
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)
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requestFilterDuration = compbasemetrics.NewHistogramVec(
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&compbasemetrics.HistogramOpts{
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Name: "apiserver_request_filter_duration_seconds",
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Help: "Request filter latency distribution in seconds, for each filter type",
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Buckets: []float64{0.0001, 0.0003, 0.001, 0.003, 0.01, 0.03, 0.1, 0.3, 1.0, 5.0},
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StabilityLevel: compbasemetrics.ALPHA,
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},
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[]string{"filter"},
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)
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// requestAbortsTotal is a number of aborted requests with http.ErrAbortHandler
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requestAbortsTotal = compbasemetrics.NewCounterVec(
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&compbasemetrics.CounterOpts{
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Name: "apiserver_request_aborts_total",
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Help: "Number of requests which apiserver aborted possibly due to a timeout, for each group, version, verb, resource, subresource and scope",
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StabilityLevel: compbasemetrics.ALPHA,
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},
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[]string{"verb", "group", "version", "resource", "subresource", "scope"},
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)
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kubectlExeRegexp = regexp.MustCompile(`^.*((?i:kubectl\.exe))`)
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metrics = []resettableCollector{
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@ -201,6 +232,9 @@ var (
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currentInflightRequests,
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currentInqueueRequests,
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requestTerminationsTotal,
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apiSelfRequestCounter,
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requestFilterDuration,
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requestAbortsTotal,
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}
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// these are the known (e.g. whitelisted/known) content types which we will report for
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@ -290,6 +324,26 @@ func UpdateInflightRequestMetrics(phase string, nonmutating, mutating int) {
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}
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}
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func RecordFilterLatency(name string, elapsed time.Duration) {
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requestFilterDuration.WithLabelValues(name).Observe(elapsed.Seconds())
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}
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// RecordRequestAbort records that the request was aborted possibly due to a timeout.
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func RecordRequestAbort(req *http.Request, requestInfo *request.RequestInfo) {
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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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reportedVerb := cleanVerb(canonicalVerb(strings.ToUpper(req.Method), scope), req)
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resource := requestInfo.Resource
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subresource := requestInfo.Subresource
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group := requestInfo.APIGroup
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version := requestInfo.APIVersion
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requestAbortsTotal.WithLabelValues(reportedVerb, group, version, resource, subresource, scope).Inc()
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}
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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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@ -299,20 +353,17 @@ func RecordRequestTermination(req *http.Request, requestInfo *request.RequestInf
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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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// We don't use verb from <requestInfo>, as this may be propagated from
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// InstrumentRouteFunc which is registered in installer.go with predefined
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// list of verbs (different than those 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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// set verbs to a bounded set of known and expected verbs
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if !validRequestMethods.Has(verb) {
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verb = OtherRequestMethod
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}
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reportedVerb := cleanVerb(canonicalVerb(strings.ToUpper(req.Method), scope), req)
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if requestInfo.IsResourceRequest {
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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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requestTerminationsTotal.WithLabelValues(reportedVerb, requestInfo.APIGroup, requestInfo.APIVersion, requestInfo.Resource, requestInfo.Subresource, scope, component, codeToString(code)).Inc()
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} else {
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requestTerminationsTotal.WithLabelValues(cleanVerb(verb, req), "", "", "", requestInfo.Path, scope, component, codeToString(code)).Inc()
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requestTerminationsTotal.WithLabelValues(reportedVerb, "", "", "", requestInfo.Path, scope, component, codeToString(code)).Inc()
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}
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}
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@ -324,12 +375,13 @@ func RecordLongRunning(req *http.Request, requestInfo *request.RequestInfo, comp
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}
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var g compbasemetrics.GaugeMetric
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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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// We don't use verb from <requestInfo>, as this may be propagated from
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// InstrumentRouteFunc which is registered in installer.go with predefined
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// list of verbs (different than those 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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@ -343,11 +395,21 @@ func RecordLongRunning(req *http.Request, requestInfo *request.RequestInfo, comp
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// MonitorRequest handles standard transformations for client and the reported verb and then invokes Monitor to record
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// a request. verb must be uppercase to be backwards compatible with existing monitoring tooling.
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func MonitorRequest(req *http.Request, verb, group, version, resource, subresource, scope, component string, deprecated bool, removedRelease string, contentType string, httpCode, respSize int, elapsed time.Duration) {
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reportedVerb := cleanVerb(verb, req)
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// We don't use verb from <requestInfo>, as this may be propagated from
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// InstrumentRouteFunc which is registered in installer.go with predefined
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// list of verbs (different than those 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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dryRun := cleanDryRun(req.URL)
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elapsedSeconds := elapsed.Seconds()
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cleanContentType := cleanContentType(contentType)
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requestCounter.WithLabelValues(reportedVerb, dryRun, group, version, resource, subresource, scope, component, cleanContentType, codeToString(httpCode)).Inc()
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// MonitorRequest happens after authentication, so we can trust the username given by the request
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info, ok := request.UserFrom(req.Context())
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if ok && info.GetName() == user.APIServerUser {
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apiSelfRequestCounter.WithLabelValues(reportedVerb, resource, subresource).Inc()
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}
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if deprecated {
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deprecatedRequestGauge.WithLabelValues(group, version, resource, subresource, removedRelease).Set(1)
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audit.AddAuditAnnotation(req.Context(), deprecatedAnnotationKey, "true")
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@ -365,8 +427,11 @@ func MonitorRequest(req *http.Request, verb, group, version, resource, subresour
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// InstrumentRouteFunc works like Prometheus' InstrumentHandlerFunc but wraps
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// the go-restful RouteFunction instead of a HandlerFunc plus some Kubernetes endpoint specific information.
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func InstrumentRouteFunc(verb, group, version, resource, subresource, scope, component string, deprecated bool, removedRelease string, routeFunc restful.RouteFunction) restful.RouteFunction {
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return restful.RouteFunction(func(request *restful.Request, response *restful.Response) {
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now := time.Now()
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return restful.RouteFunction(func(req *restful.Request, response *restful.Response) {
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requestReceivedTimestamp, ok := request.ReceivedTimestampFrom(req.Request.Context())
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if !ok {
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requestReceivedTimestamp = time.Now()
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}
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delegate := &ResponseWriterDelegator{ResponseWriter: response.ResponseWriter}
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@ -381,16 +446,19 @@ func InstrumentRouteFunc(verb, group, version, resource, subresource, scope, com
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}
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response.ResponseWriter = rw
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routeFunc(request, response)
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routeFunc(req, response)
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MonitorRequest(request.Request, verb, group, version, resource, subresource, scope, component, deprecated, removedRelease, delegate.Header().Get("Content-Type"), delegate.Status(), delegate.ContentLength(), time.Since(now))
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MonitorRequest(req.Request, verb, group, version, resource, subresource, scope, component, deprecated, removedRelease, delegate.Header().Get("Content-Type"), delegate.Status(), delegate.ContentLength(), time.Since(requestReceivedTimestamp))
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})
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}
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// InstrumentHandlerFunc works like Prometheus' InstrumentHandlerFunc but adds some Kubernetes endpoint specific information.
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func InstrumentHandlerFunc(verb, group, version, resource, subresource, scope, component string, deprecated bool, removedRelease string, handler http.HandlerFunc) http.HandlerFunc {
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return func(w http.ResponseWriter, req *http.Request) {
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now := time.Now()
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requestReceivedTimestamp, ok := request.ReceivedTimestampFrom(req.Context())
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if !ok {
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requestReceivedTimestamp = time.Now()
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}
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delegate := &ResponseWriterDelegator{ResponseWriter: w}
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@ -405,7 +473,7 @@ func InstrumentHandlerFunc(verb, group, version, resource, subresource, scope, c
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handler(w, req)
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MonitorRequest(req, verb, group, version, resource, subresource, scope, component, deprecated, removedRelease, delegate.Header().Get("Content-Type"), delegate.Status(), delegate.ContentLength(), time.Since(now))
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MonitorRequest(req, verb, group, version, resource, subresource, scope, component, deprecated, removedRelease, delegate.Header().Get("Content-Type"), delegate.Status(), delegate.ContentLength(), time.Since(requestReceivedTimestamp))
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}
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}
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@ -440,7 +508,7 @@ func CleanScope(requestInfo *request.RequestInfo) string {
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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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if scope != "resource" && scope != "" {
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return "LIST"
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}
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return "GET"
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