ea88c8803d
use istio client-go library instead of knative bump kubernetes dependency version change code coverage to codecov
125 lines
4.3 KiB
Go
125 lines
4.3 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package metrics
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import (
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"github.com/prometheus/client_golang/prometheus"
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"k8s.io/client-go/util/workqueue"
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logf "sigs.k8s.io/controller-runtime/pkg/internal/log"
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)
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var log = logf.RuntimeLog.WithName("metrics")
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// This file is copied and adapted from k8s.io/kubernetes/pkg/util/workqueue/prometheus
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// which registers metrics to the default prometheus Registry. We require very
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// similar functionality, but must register metrics to a different Registry.
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func init() {
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workqueue.SetProvider(workqueueMetricsProvider{})
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}
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func registerWorkqueueMetric(c prometheus.Collector, name, queue string) {
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if err := Registry.Register(c); err != nil {
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log.Error(err, "failed to register metric", "name", name, "queue", queue)
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}
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}
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type workqueueMetricsProvider struct{}
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func (workqueueMetricsProvider) NewDepthMetric(queue string) workqueue.GaugeMetric {
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const name = "workqueue_depth"
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m := prometheus.NewGauge(prometheus.GaugeOpts{
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Name: name,
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Help: "Current depth of workqueue",
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ConstLabels: prometheus.Labels{"name": queue},
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})
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registerWorkqueueMetric(m, name, queue)
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return m
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}
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func (workqueueMetricsProvider) NewAddsMetric(queue string) workqueue.CounterMetric {
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const name = "workqueue_adds_total"
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m := prometheus.NewCounter(prometheus.CounterOpts{
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Name: name,
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Help: "Total number of adds handled by workqueue",
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ConstLabels: prometheus.Labels{"name": queue},
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})
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registerWorkqueueMetric(m, name, queue)
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return m
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}
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func (workqueueMetricsProvider) NewLatencyMetric(queue string) workqueue.HistogramMetric {
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const name = "workqueue_queue_duration_seconds"
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m := prometheus.NewHistogram(prometheus.HistogramOpts{
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Name: name,
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Help: "How long in seconds an item stays in workqueue before being requested.",
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ConstLabels: prometheus.Labels{"name": queue},
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Buckets: prometheus.ExponentialBuckets(10e-9, 10, 10),
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})
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registerWorkqueueMetric(m, name, queue)
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return m
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}
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func (workqueueMetricsProvider) NewWorkDurationMetric(queue string) workqueue.HistogramMetric {
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const name = "workqueue_work_duration_seconds"
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m := prometheus.NewHistogram(prometheus.HistogramOpts{
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Name: name,
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Help: "How long in seconds processing an item from workqueue takes.",
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ConstLabels: prometheus.Labels{"name": queue},
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Buckets: prometheus.ExponentialBuckets(10e-9, 10, 10),
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})
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registerWorkqueueMetric(m, name, queue)
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return m
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}
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func (workqueueMetricsProvider) NewUnfinishedWorkSecondsMetric(queue string) workqueue.SettableGaugeMetric {
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const name = "workqueue_unfinished_work_seconds"
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m := prometheus.NewGauge(prometheus.GaugeOpts{
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Name: name,
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Help: "How many seconds of work has done that " +
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"is in progress and hasn't been observed by work_duration. Large " +
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"values indicate stuck threads. One can deduce the number of stuck " +
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"threads by observing the rate at which this increases.",
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ConstLabels: prometheus.Labels{"name": queue},
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})
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registerWorkqueueMetric(m, name, queue)
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return m
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}
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func (workqueueMetricsProvider) NewLongestRunningProcessorSecondsMetric(queue string) workqueue.SettableGaugeMetric {
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const name = "workqueue_longest_running_processor_seconds"
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m := prometheus.NewGauge(prometheus.GaugeOpts{
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Name: name,
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Help: "How many seconds has the longest running " +
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"processor for workqueue been running.",
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ConstLabels: prometheus.Labels{"name": queue},
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})
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registerWorkqueueMetric(m, name, queue)
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return m
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}
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func (workqueueMetricsProvider) NewRetriesMetric(queue string) workqueue.CounterMetric {
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const name = "workqueue_retries_total"
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m := prometheus.NewCounter(prometheus.CounterOpts{
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Name: name,
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Help: "Total number of retries handled by workqueue",
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ConstLabels: prometheus.Labels{"name": queue},
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})
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registerWorkqueueMetric(m, name, queue)
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return m
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}
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