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Introduce Experimental Metrics (#2435)
This commit introduces a series of metrics that are only recorded when OLM is built with the experimental_metrics build tag. The metrics introduced in this commit includes namespace/name information of the request being reconciled by a series of controllers. These experimental metrics are enabled by default in the e2e-local target defined in the project's Makefile. Signed-off-by: Alexander Greene <greene.al1991@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| package metrics | ||
|
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| import "github.com/prometheus/client_golang/prometheus" | ||
|
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| const ( | ||
| // Controller names | ||
| operatorController = "operator" | ||
| adoptionCSVController = "adoption_csv" | ||
| adoptionSubscriptionController = "adoption_subscription" | ||
| operatorConditionController = "operator_condition" | ||
| operatorConditionGeneratorController = "operator_condition_generator" | ||
| ) | ||
|
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| var ( | ||
| reconcileMetrics = map[string]*prometheus.CounterVec{} | ||
| ) | ||
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| func EmitOperatorReconcile(namespace, name string) { | ||
| emitReconcile(operatorController, namespace, name) | ||
| } | ||
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| func EmitAdoptionCSVReconcile(namespace, name string) { | ||
| emitReconcile(adoptionCSVController, namespace, name) | ||
| } | ||
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| func EmitAdoptionSubscriptionReconcile(namespace, name string) { | ||
| emitReconcile(adoptionSubscriptionController, namespace, name) | ||
| } | ||
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| func EmitOperatorConditionReconcile(namespace, name string) { | ||
| emitReconcile(operatorConditionController, namespace, name) | ||
| } | ||
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| func EmitOperatorConditionGeneratorReconcile(namespace, name string) { | ||
| emitReconcile(operatorConditionGeneratorController, namespace, name) | ||
| } | ||
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| func emitReconcile(controllerName, namespace, name string) { | ||
| if counter, ok := reconcileMetrics[controllerName]; ok { | ||
| counter.WithLabelValues(namespace, name).Inc() | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| //go:build experimental_metrics | ||
| // +build experimental_metrics | ||
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| package metrics | ||
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| import ( | ||
| "fmt" | ||
| "strings" | ||
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| "github.com/prometheus/client_golang/prometheus" | ||
| ) | ||
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| func init() { | ||
| // Register experimental metrics | ||
| reconcileMetrics = reconcileCounters(operatorController, adoptionCSVController, adoptionSubscriptionController, operatorConditionController, operatorConditionGeneratorController) | ||
| registerReconcileMetrics() | ||
| } | ||
|
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| func reconcileCounters(reconcilerNames ...string) map[string]*prometheus.CounterVec { | ||
| result := map[string]*prometheus.CounterVec{} | ||
| for _, s := range reconcilerNames { | ||
| result[s] = createReconcileCounterVec(s) | ||
| } | ||
| return result | ||
| } | ||
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| func createReconcileCounterVec(name string) *prometheus.CounterVec { | ||
| return prometheus.NewCounterVec( | ||
| prometheus.CounterOpts{ | ||
| Name: "controller_reconcile_" + name, | ||
| Help: fmt.Sprintf("Count of reconcile events by the %s controller", strings.Replace(name, "_", " ", -1)), | ||
| }, | ||
| []string{NamespaceLabel, NameLabel}, | ||
| ) | ||
| } | ||
|
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| func registerReconcileMetrics() { | ||
| for _, v := range reconcileMetrics { | ||
| prometheus.MustRegister(v) | ||
| } | ||
| } |