mirror of
https://github.com/prometheus/prometheus.git
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87 lines
2.3 KiB
Go
87 lines
2.3 KiB
Go
// Copyright 2015 The Prometheus 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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//
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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 kubernetes
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import (
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/prometheus/discovery"
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)
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var _ discovery.DiscovererMetrics = (*kubernetesMetrics)(nil)
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type kubernetesMetrics struct {
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eventCount *prometheus.CounterVec
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failuresCount prometheus.Counter
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metricRegisterer discovery.MetricRegisterer
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}
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func newDiscovererMetrics(reg prometheus.Registerer, rmi discovery.RefreshMetricsInstantiator) discovery.DiscovererMetrics {
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m := &kubernetesMetrics{
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eventCount: prometheus.NewCounterVec(
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prometheus.CounterOpts{
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Namespace: discovery.KubernetesMetricsNamespace,
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Name: "events_total",
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Help: "The number of Kubernetes events handled.",
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},
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[]string{"role", "event"},
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),
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failuresCount: prometheus.NewCounter(
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prometheus.CounterOpts{
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Namespace: discovery.KubernetesMetricsNamespace,
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Name: "failures_total",
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Help: "The number of failed WATCH/LIST requests.",
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},
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),
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}
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m.metricRegisterer = discovery.NewMetricRegisterer(reg, []prometheus.Collector{
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m.eventCount,
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m.failuresCount,
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})
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// Initialize metric vectors.
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for _, role := range []string{
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RoleEndpointSlice.String(),
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RoleEndpoint.String(),
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RoleNode.String(),
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RolePod.String(),
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RoleService.String(),
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RoleIngress.String(),
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} {
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for _, evt := range []string{
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MetricLabelRoleAdd,
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MetricLabelRoleDelete,
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MetricLabelRoleUpdate,
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} {
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m.eventCount.WithLabelValues(role, evt)
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}
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}
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m.failuresCount.Add(0)
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return m
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}
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// Register implements discovery.DiscovererMetrics.
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func (m *kubernetesMetrics) Register() error {
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return m.metricRegisterer.RegisterMetrics()
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}
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// Unregister implements discovery.DiscovererMetrics.
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func (m *kubernetesMetrics) Unregister() {
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m.metricRegisterer.UnregisterMetrics()
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}
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