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add oTel grpc instrumentation #515
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| // Copyright 2024 Yahoo Inc. | ||
| // Licensed under the terms of the Apache License 2.0. Please see LICENSE file in project root for terms. | ||
|
|
||
| package otellib | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/tls" | ||
| "log" | ||
|
|
||
| "go.opentelemetry.io/otel" | ||
| "go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp" | ||
| sdkmetric "go.opentelemetry.io/otel/sdk/metric" | ||
| "go.opentelemetry.io/otel/sdk/resource" | ||
| ) | ||
|
|
||
| // InitOTelSDK initializes the OTel meter provider | ||
| func InitOTelSDK(ctx context.Context, collectorEndpoint string, tlsConfig *tls.Config, res *resource.Resource) (shutdown func(context.Context) error) { | ||
| // Set up an OTel exporter for metrics. | ||
| var opts []otlpmetrichttp.Option | ||
| opts = append(opts, otlpmetrichttp.WithEndpoint(collectorEndpoint)) | ||
| opts = append(opts, otlpmetrichttp.WithTLSClientConfig(tlsConfig)) | ||
|
|
||
| metricExporter, err := otlpmetrichttp.New(ctx, opts...) | ||
| if err != nil { | ||
| log.Fatalf("failed to create metric exporter: %v", err) | ||
| } | ||
|
|
||
| // Set up a metric provider. | ||
| meterProvider := sdkmetric.NewMeterProvider( | ||
| sdkmetric.WithReader( | ||
| sdkmetric.NewPeriodicReader(metricExporter), | ||
| ), | ||
| sdkmetric.WithResource(res), | ||
| ) | ||
|
|
||
| otel.SetMeterProvider(meterProvider) | ||
|
|
||
| return meterProvider.Shutdown | ||
| } | ||
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Trace provider can be added here in the future.