always disable fs integration in serverless (#5412)

Author: rochdev

packages/datadog-instrumentations/src/helpers/hooks.js

@@ -50,7 +50,7 @@ module.exports = {
   'express-session': () => require('../express-session'),
   fastify: () => require('../fastify'),
   'find-my-way': () => require('../find-my-way'),
-  fs: () => require('../fs'),
+  fs: { serverless: false, fn: () => require('../fs') },
   'generic-pool': () => require('../generic-pool'),
   graphql: () => require('../graphql'),
   grpc: () => require('../grpc'),

packages/datadog-instrumentations/src/helpers/register.js

@@ -8,6 +8,7 @@ const requirePackageJson = require('../../../dd-trace/src/require-package-json')
 const log = require('../../../dd-trace/src/log')
 const checkRequireCache = require('../check_require_cache')
 const telemetry = require('../../../dd-trace/src/guardrails/telemetry')
+const { isInServerlessEnvironment } = require('../../../dd-trace/src/serverless')
 
 const {
   DD_TRACE_DISABLED_INSTRUMENTATIONS = '',
@@ -60,6 +61,8 @@ for (const packageName of names) {
   let hook = hooks[packageName]
 
   if (typeof hook === 'object') {
+    if (hook.serverless === false && isInServerlessEnvironment()) continue
+
     hookOptions.internals = hook.esmFirst
     hook = hook.fn
   }