S3C-8823: add Otel SDK setup with honeycomb

package.json

@@ -20,6 +20,10 @@
   "homepage": "https://github.com/scality/S3#readme",
   "dependencies": {
     "@hapi/joi": "^17.1.0",
+    "@honeycombio/opentelemetry-node": "^0.7.2",
+    "@opentelemetry/api": "^1.8.0",
+    "@opentelemetry/auto-instrumentations-node": "^0.46.1",
+    "@opentelemetry/instrumentation-aws-sdk": "^0.41.0",
     "arsenal": "git+https://github.com/scality/arsenal#7.70.29",
     "async": "~2.5.0",
     "aws-sdk": "2.905.0",
@@ -84,7 +88,7 @@
     "start": "npm-run-all --parallel start_dmd start_s3server",
     "start_mdserver": "node mdserver.js",
     "start_dataserver": "node dataserver.js",
-    "start_s3server": "node index.js",
+    "start_s3server": "node  -r ./tracing.js index.js",
     "start_dmd": "npm-run-all --parallel start_mdserver start_dataserver",
     "start_utapi": "node lib/utapi/utapi.js",
     "utapi_replay": "node lib/utapi/utapiReplay.js",

tracing.js

@@ -0,0 +1,25 @@
+// Example filename: tracing.js
+
+'use strict';
+
+const { HoneycombSDK } = require('@honeycombio/opentelemetry-node');
+const {
+  getNodeAutoInstrumentations,
+} = require('@opentelemetry/auto-instrumentations-node');
+const { IORedisInstrumentation } = require('@opentelemetry/instrumentation-ioredis');
+
+// Uses environment variables named HONEYCOMB_API_KEY and OTEL_SERVICE_NAME
+const sdk = new HoneycombSDK({
+    instrumentations: [getNodeAutoInstrumentations({
+      // We recommend disabling fs automatic instrumentation because
+      // it can be noisy and expensive during startup
+        '@opentelemetry/instrumentation-fs': {
+            enabled: false,
+        },
+    }),
+    new IORedisInstrumentation(),
+  ],
+});
+
+sdk.start();
+