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| Original file line number | Diff line number | Diff line change |
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@@ -6,6 +6,7 @@ | |
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| import ArgumentParser | ||
| import Node | ||
| import ServiceLifecycle | ||
| import TracingUtils | ||
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| @main | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,61 @@ | ||
| import OTel | ||
| import OTLPGRPC | ||
| import ServiceLifecycle | ||
| import TracingUtils | ||
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| public enum Tracing { | ||
| public static func bootstrap(_ serviceName: String) async throws -> [Service] { | ||
| // Bootstrap the logging backend with the OTel metadata provider which includes span IDs in logging messages. | ||
| LoggingSystem.bootstrap { label in | ||
| var handler = StreamLogHandler.standardError(label: label, metadataProvider: .otel) | ||
| handler.logLevel = .trace | ||
| return handler | ||
| } | ||
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| // Configure OTel resource detection to automatically apply helpful attributes to events. | ||
| let environment = OTelEnvironment.detected() | ||
| let resourceDetection = OTelResourceDetection(detectors: [ | ||
| OTelProcessResourceDetector(), | ||
| OTelEnvironmentResourceDetector(environment: environment), | ||
| .manual( | ||
| OTelResource( | ||
| attributes: SpanAttributes(["service.name": serviceName.toSpanAttribute()]) | ||
| ) | ||
| ), | ||
| ]) | ||
| let resource = await resourceDetection.resource(environment: environment, logLevel: .trace) | ||
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| // Bootstrap the metrics backend to export metrics periodically in OTLP/gRPC. | ||
| let registry = OTelMetricRegistry() | ||
| let metricsExporter = try OTLPGRPCMetricExporter( | ||
| configuration: .init(environment: environment) | ||
| ) | ||
| let metrics = OTelPeriodicExportingMetricsReader( | ||
| resource: resource, | ||
| producer: registry, | ||
| exporter: metricsExporter, | ||
| configuration: .init( | ||
| environment: environment, | ||
| exportInterval: .seconds(5) // NOTE: This is overridden for the example; the default is 60 seconds. | ||
| ) | ||
| ) | ||
| MetricsSystem.bootstrap(OTLPMetricsFactory(registry: registry)) | ||
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| // Bootstrap the tracing backend to export traces periodically in OTLP/gRPC. | ||
| let exporter = try OTLPGRPCSpanExporter(configuration: .init(environment: environment)) | ||
| let processor = OTelBatchSpanProcessor( | ||
| exporter: exporter, configuration: .init(environment: environment) | ||
| ) | ||
| let tracer = OTelTracer( | ||
| idGenerator: OTelRandomIDGenerator(), | ||
| sampler: OTelConstantSampler(isOn: true), | ||
| propagator: OTelW3CPropagator(), | ||
| processor: processor, | ||
| environment: environment, | ||
| resource: resource | ||
| ) | ||
| InstrumentationSystem.bootstrap(tracer) | ||
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| return [tracer, metrics] | ||
| } | ||
| } |
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