Opentelemetry autoconfig for fastify based project

tracing.ts

import { NodeSDK } from "@opentelemetry/sdk-node";
import { OTLPTraceExporter } from "@opentelemetry/exporter-trace-otlp-http";
import { OTLPMetricExporter } from "@opentelemetry/exporter-metrics-otlp-http";
import { PeriodicExportingMetricReader } from "@opentelemetry/sdk-metrics";
import { resourceFromAttributes } from "@opentelemetry/resources";
import {
	ATTR_SERVICE_NAME,
	ATTR_SERVICE_VERSION,
} from "@opentelemetry/semantic-conventions";
import { getNodeAutoInstrumentations } from "@opentelemetry/auto-instrumentations-node";
import { FastifyOtelInstrumentation } from "@fastify/otel";

import { W3CTraceContextPropagator } from "@opentelemetry/core";

import { env } from "node:process";
import pkg from "../package.json" with { type: "json" };

if (env.OTEL_EXPORTER_OTLP_ENDPOINT && env.OTEL_EXPORTER_OTLP_ENDPOINT != "") {
	const traceExporter = new OTLPTraceExporter({
		url: `${env.OTEL_EXPORTER_OTLP_ENDPOINT}/v1/traces`,
	});

	const metricReader = new PeriodicExportingMetricReader({
		exporter: new OTLPMetricExporter({
			url: `${env.OTEL_EXPORTER_OTLP_ENDPOINT}/v1/metrics`,
		}),
		exportIntervalMillis: 10000,
	});

	const resource = resourceFromAttributes({
		[ATTR_SERVICE_NAME]: pkg.name,
		[ATTR_SERVICE_VERSION]: pkg.version,
	});

	const sdk = new NodeSDK({
		resource,
		textMapPropagator: new W3CTraceContextPropagator(),
		traceExporter,
		metricReader,
		instrumentations: [

			new FastifyOtelInstrumentation({
				registerOnInitialization: true,
			}),
			...getNodeAutoInstrumentations({
				"@opentelemetry/instrumentation-fs": { enabled: false },
				"@opentelemetry/instrumentation-dns": { enabled: false },
				"@opentelemetry/instrumentation-net": { enabled: false },
				"@opentelemetry/instrumentation-pino": { enabled: false },
				"@opentelemetry/instrumentation-http": {
					enabled: true,
				},
				"@opentelemetry/instrumentation-amqplib": {enabled: true}
			}),
		],
	});

	sdk.start();
	console.log("[OTEL] SDK started successfully");
} else {
	console.log("[OTEL] SDK disabled");
}