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## Summary Add metrics for the global cache. Configure `otel` to export metrics to prometheus. ## Related issues - [ENG-2407](https://linear.app/pomerium/issue/ENG-2407/add-additional-metrics-and-tracing-spans-to-pomerium) ## Checklist - [x] reference any related issues - [ ] updated unit tests - [ ] add appropriate label (`enhancement`, `bug`, `breaking`, `dependencies`, `ci`) - [x] ready for review
33 lines
708 B
Go
33 lines
708 B
Go
package metrics
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import (
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"go.opentelemetry.io/otel"
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"go.opentelemetry.io/otel/exporters/prometheus"
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"go.opentelemetry.io/otel/metric"
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sdk_metric "go.opentelemetry.io/otel/sdk/metric"
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)
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// Meter is the global meter for Pomerium.
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var Meter metric.Meter
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func init() {
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e, err := prometheus.New(prometheus.WithNamespace("pomerium"))
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if err != nil {
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panic(err)
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}
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otel.SetMeterProvider(sdk_metric.NewMeterProvider(
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sdk_metric.WithReader(e),
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))
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Meter = otel.Meter("")
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}
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// Int64Counter returns an int64 counter.
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func Int64Counter(name string, options ...metric.Int64CounterOption) metric.Int64Counter {
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c, err := Meter.Int64Counter(name, options...)
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if err != nil {
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panic(err)
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}
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return c
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}
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