feat(config): Optimize instrumentation setup for better performance

src/config/instrumentation.ts

@@ -1,19 +1,18 @@
-import { NodeSDK } from '@opentelemetry/sdk-node'
-import { getNodeAutoInstrumentations } from '@opentelemetry/auto-instrumentations-node'
-import {
-  PeriodicExportingMetricReader,
-  ConsoleMetricExporter,
-} from '@opentelemetry/sdk-metrics'
+import opentelemetry from '@opentelemetry/sdk-node'
 import { OTLPTraceExporter } from '@opentelemetry/exporter-trace-otlp-http'
+import { getNodeAutoInstrumentations } from '@opentelemetry/auto-instrumentations-node'
 
-const otlpExporter = new OTLPTraceExporter({
-  url: 'http://localhost:4318/v1/traces',
+const sdk = new opentelemetry.NodeSDK({
+  traceExporter: new OTLPTraceExporter(),
+  instrumentations: [
+    getNodeAutoInstrumentations({
+      // we recommend disabling fs autoinstrumentation since it can be noisy
+      // and expensive during startup
+      '@opentelemetry/instrumentation-fs': {
+        enabled: false,
+      },
+    }),
+  ],
 })
 
-export const sdk = new NodeSDK({
-  traceExporter: otlpExporter,
-  metricReader: new PeriodicExportingMetricReader({
-    exporter: new ConsoleMetricExporter(),
-  }),
-  instrumentations: [getNodeAutoInstrumentations()],
-})
+sdk.start()

src/http/server.ts

@@ -1,3 +1,5 @@
+import '@/config/instrumentation'
+
 import fastifyCors from '@fastify/cors'
 import fastifyJwt from '@fastify/jwt'
 import fastifyRateLimit from '@fastify/rate-limit'
@@ -24,7 +26,6 @@ import { loginRoute } from './routes/login'
 import { registerEventRoute } from './routes/register-event'
 import { registerHostRoute } from './routes/register-host'
 import { registerSubscriptionRoute } from './routes/register-subscription'
-import { sdk } from '@/config/instrumentation'
 
 const app = fastify()
 
@@ -118,9 +119,6 @@ app.setErrorHandler((error, _, reply) => {
   return reply.status(500).send({ message: 'Internal server error.' })
 })
 
-sdk.start()
-
-app.ready()
 app
   .listen({
     port: env.PORT,