/
metrics.go
61 lines (54 loc) · 1.98 KB
/
metrics.go
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// Copyright 2020 SAP SE
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package controllers
import (
"github.com/prometheus/client_golang/prometheus"
"k8s.io/apimachinery/pkg/types"
"sigs.k8s.io/controller-runtime/pkg/metrics"
)
// IsTest is set by the test suite during testing.
var IsTest bool
// RegisterMetrics registers all the metrics.
// If IsTest is true then it will also return a *prometheus.Registry than can be used in
// the test suite otherwise nil is returned.
func RegisterMetrics() *prometheus.Registry {
if IsTest {
// We don't use `controllers.RegisterMetrics()` here as that will also include
// metrics related to the controller which will make testing with fixtures
// difficult.
reg := prometheus.NewPedanticRegistry()
reg.MustRegister(successfulReconcileTime)
return reg
}
metrics.Registry.MustRegister(successfulReconcileTime)
return nil
}
var successfulReconcileTime = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Name: "absent_metrics_operator_successful_reconcile_time",
Help: "The time at which a specific PrometheusRule was successfully reconciled by the operator.",
},
[]string{"prometheusrule_namespace", "prometheusrule_name"},
)
func setReconcileGauge(key types.NamespacedName) {
gauge := successfulReconcileTime.WithLabelValues(key.Namespace, key.Name)
if IsTest {
gauge.Set(1)
} else {
gauge.SetToCurrentTime()
}
}
func deleteReconcileGauge(key types.NamespacedName) {
successfulReconcileTime.DeleteLabelValues(key.Namespace, key.Name)
}