feat: add kafkajs instrumentation

.ci/docker/docker-compose-all.yml

@@ -37,6 +37,10 @@ services:
     extends:
       file: docker-compose.yml
       service: localstack
+  kafka:
+    extends:
+      file: docker-compose.yml
+      service: kafka
   node_tests:
     extends:
       file: docker-compose-node-test.yml
@@ -60,6 +64,8 @@ services:
         condition: service_healthy
       localstack:
         condition: service_healthy
+      kafka:
+        condition: service_healthy
 
 volumes:
   nodepgdata:
@@ -76,3 +82,5 @@ volumes:
     driver: local
   nodelocalstackdata:
     driver: local
+  nodekafkadata:
+    driver: local

.ci/docker/docker-compose-edge.yml

@@ -37,6 +37,10 @@ services:
     extends:
       file: docker-compose.yml
       service: redis
+  kafka:
+    extends:
+      file: docker-compose.yml
+      service: kafka
   node_tests:
     extends:
       file: docker-compose-node-edge-test.yml
@@ -60,6 +64,8 @@ services:
         condition: service_healthy
       redis:
         condition: service_healthy
+      kafka:
+        condition: service_healthy
 
 volumes:
   nodepgdata:
@@ -76,3 +82,5 @@ volumes:
     driver: local
   nodecassandradata:
     driver: local
+  nodekafkadata:
+    driver: local

.ci/docker/docker-compose-kafka.yml

@@ -0,0 +1,28 @@
+version: '2.1'
+
+services:
+  zookeeper:
+    extends:
+      file: docker-compose.yml
+      service: zookeeper
+  kafka:
+    extends:
+      file: docker-compose.yml
+      service: kafka
+    depends_on:
+      - zookeeper
+  node_tests:
+    extends:
+      file: docker-compose-node-test.yml
+      service: node_tests
+    depends_on:
+      - kafka
+      # TODO: uncomment this if health_check is necessary
+      # kafka:
+      #   condition: service_healthy
+
+volumes:
+  nodekafkadata:
+    driver: local
+  nodezookeeperdata:
+    driver: local

.ci/docker/docker-compose-node-edge-test.yml

@@ -24,6 +24,7 @@ services:
       PGUSER: 'postgres'
       MEMCACHED_HOST: 'memcached'
       LOCALSTACK_HOST: 'localstack:4566'
+      KAFKA_HOST: 'kafka:9093'
       NODE_VERSION: ${NODE_VERSION}
       NODE_FULL_VERSION: ${NODE_FULL_VERSION}
       NVM_NODEJS_ORG_MIRROR: ${NVM_NODEJS_ORG_MIRROR}

.ci/docker/docker-compose-node-test.yml

@@ -21,6 +21,7 @@ services:
       PGUSER: 'postgres'
       MEMCACHED_HOST: 'memcached'
       LOCALSTACK_HOST: 'localstack:4566'
+      KAFKA_HOST: 'kafka:9093'
       NODE_VERSION: ${NODE_VERSION}
       TAV: ${TAV_MODULE}
       ELASTIC_APM_CONTEXT_MANAGER: ${ELASTIC_APM_CONTEXT_MANAGER}

.ci/docker/docker-compose.yml

@@ -140,6 +140,43 @@ services:
     volumes:
       - nodelocalstackdata:/var/lib/localstack
 
+  zookeeper:
+    # https://hub.docker.com/r/bitnami/zookeeper/tags
+    image: bitnami/zookeeper:3.9.1
+    ports:
+      - "2181:2181"
+    volumes:
+      - nodezookeeperdata:/bitnami
+    environment:
+      - ALLOW_ANONYMOUS_LOGIN=yes
+
+  kafka:
+    # https://hub.docker.com/r/bitnami/kafka/tags
+    image: bitnami/kafka:3.3.2
+    ports:
+      - "9093:9093"
+    volumes:
+      - nodekafkadata:/var/lib/kafka/data
+    environment:
+      - KAFKA_BROKER_ID=1
+      - KAFKA_CFG_ZOOKEEPER_CONNECT=zookeeper:2181
+      - ALLOW_PLAINTEXT_LISTENER=yes
+      - KAFKA_CFG_LISTENER_SECURITY_PROTOCOL_MAP=CLIENT:PLAINTEXT,EXTERNAL:PLAINTEXT
+      - KAFKA_CFG_LISTENERS=CLIENT://:9092,EXTERNAL://:9093
+      - KAFKA_CFG_ADVERTISED_LISTENERS=CLIENT://kafka:9092,EXTERNAL://kafka:9093
+      - KAFKA_CFG_INTER_BROKER_LISTENER_NAME=CLIENT
+      - KAFKA_CFG_DELETE_TOPIC_ENABLE=true
+    depends_on:
+      - zookeeper
+    # TODO: maybe not necessary  but figure out how to do this
+    healthcheck:
+      # use netcat to check tcp connection available
+      # test: nc -z localhost 9093 || exit -1
+      # start_period: 15s
+      # interval: 5s
+      # timeout: 10s
+      # retries: 5
+
 volumes:
   nodepgdata:
     driver: local
@@ -155,3 +192,7 @@ volumes:
     driver: local
   nodelocalstackdata:
     driver: local
+  nodekafkadata:
+    driver: local
+  nodezookeeperdata:
+    driver: local

.ci/scripts/test.sh

@@ -216,6 +216,9 @@ elif [[ -n "${TAV_MODULE}" ]]; then
     aws-sdk|@aws-sdk/client-s3|@aws-sdk/client-dynamodb|@aws-sdk/client-sns|@aws-sdk/client-sqs)
       DOCKER_COMPOSE_FILE=docker-compose-localstack.yml
       ;;
+    kafkajs)
+      DOCKER_COMPOSE_FILE=docker-compose-kafka.yml
+      ;;
     *)
       # Just the "node_tests" container. No additional services needed for testing.
       DOCKER_COMPOSE_FILE=docker-compose-node-test.yml

.ci/tav.json

@@ -24,6 +24,7 @@
     { "name": "generic-pool", "minMajorVersion": 8 },
     { "name": "graphql", "minMajorVersion": 8 },
     { "name": "ioredis", "minMajorVersion": 8 },
+    { "name": "kafkajs", "minMajorVersion": 14 },
     { "name": "knex", "minMajorVersion": 8 },
     { "name": "memcached", "minMajorVersion": 8 },
     { "name": "mongodb", "minMajorVersion": 8 },

.github/workflows/test.yml

@@ -125,6 +125,31 @@ jobs:
         volumes:
           - nodelocalstackdata:/var/lib/localstack
 
+      zookeeper:
+        image: bitnami/zookeeper:3.9.1
+        env:
+          ALLOW_ANONYMOUS_LOGIN: 'yes'
+        ports:
+          - "2181:2181"
+        volumes:
+          - nodezookeeperdata:/var/lib/zookeeper/data
+
+      kafka:
+        image: bitnami/kafka:3.3.2
+        ports:
+          - "9093:9093"
+        volumes:
+          - nodekafkadata:/var/lib/kafka/data
+        env:
+          KAFKA_BROKER_ID: '1'
+          KAFKA_CFG_ZOOKEEPER_CONNECT: 'zookeeper:2181'
+          ALLOW_PLAINTEXT_LISTENER: 'yes'
+          KAFKA_CFG_LISTENER_SECURITY_PROTOCOL_MAP: 'CLIENT:PLAINTEXT,EXTERNAL:PLAINTEXT'
+          KAFKA_CFG_LISTENERS: 'CLIENT://:9092,EXTERNAL://:9093'
+          KAFKA_CFG_ADVERTISED_LISTENERS: 'CLIENT://kafka:9092,EXTERNAL://localhost:9093'
+          KAFKA_CFG_INTER_BROKER_LISTENER_NAME: 'CLIENT'
+          KAFKA_CFG_DELETE_TOPIC_ENABLE: 'true'
+
     strategy:
       fail-fast: false
       matrix:

.tav.yml

@@ -483,3 +483,9 @@ undici:
       mode: max-7
       include: '>=4.7.1 <6'
     commands: node test/instrumentation/modules/undici/undici.test.js
+
+kafkajs:
+  versions:
+    mode: latest-minors
+    include: '>=2 <3'
+  commands: node test/instrumentation/modules/kafkajs/kafkajs.test.js

CHANGELOG.asciidoc

@@ -43,6 +43,7 @@ See the <<upgrade-to-v4>> guide.
 
 * Update <<opentelemetry-bridge>> support to `@opentelemetry/api` version 1.8.0.
 * Add support for `tedious` version v17. ({pull}3901[#3901])
+* Add support for `kafkajs` version v2. ({issues}2905[#2905])
 
 [float]
 ===== Bug fixes

docs/supported-technologies.asciidoc

@@ -142,6 +142,7 @@ so those should be supported as well.
 |https://www.npmjs.com/package/tedious[tedious] |>=1.9 <18.0.0 | (Excluding v4.0.0.) Will instrument all queries
 |https://www.npmjs.com/package/undici[undici] | >=4.7.1 <6 | Will instrument undici HTTP requests, except HTTP CONNECT. Requires node v14.17.0 or later, or the user to have installed the https://www.npmjs.com/package/diagnostics_channel['diagnostics_channel' polyfill].
 |https://www.npmjs.com/package/ws[ws] |>=1.0.0 <8.0.0 |Will instrument outgoing WebSocket messages
+|https://www.npmjs.com/package/kafkajs[kafkajs] |>=2.0.0 <3.0.0 |Will instrument all send methods for producers and message and batch processing for consumers.
 |=======================================================================
 
 [float]

examples/trace-kafka.js

@@ -0,0 +1,89 @@
+#!/usr/bin/env node --unhandled-rejections=strict
+
+/*
+ * Copyright Elasticsearch B.V. and other contributors where applicable.
+ * Licensed under the BSD 2-Clause License; you may not use this file except in
+ * compliance with the BSD 2-Clause License.
+ */
+
+// A small example showing Elastic APM tracing the 'kadfkajs' package.
+//
+// This assumes a Kafka server running on localhost. You can use:
+//    npm run docker:start kafka
+// to start a Kafka container. Then `npm run docker:stop` to stop it.
+
+// eslint-disable-next-line no-unused-vars
+const apm = require('../').start({
+  serviceName: 'example-trace-kafka',
+});
+
+const { Buffer } = require('buffer');
+const { TextEncoder } = require('util');
+
+const { Kafka } = require('kafkajs');
+
+const topic = 'trace-kafka-topic';
+const kafka = new Kafka({ clientId: 'my-app', brokers: ['localhost:9093'] });
+const admin = kafka.admin();
+
+const headerStr = 'value inside buffer';
+const headerEnc = new TextEncoder().encode(headerStr);
+const headerBuf = Buffer.from(headerEnc);
+
+let producer, consumer;
+let messagesConsumed = 0;
+
+async function run() {
+  await admin.connect();
+  await admin.createTopics({ topics: [{ topic }] });
+
+  consumer = kafka.consumer({ groupId: 'trace-group' });
+  producer = kafka.producer();
+
+  await producer.connect();
+  await producer.send({
+    topic,
+    messages: [
+      { value: 'message 1', headers: { foo: 'bar' } },
+      { value: 'message 2', headers: { foo: headerBuf } },
+      { value: 'message 3' },
+    ],
+  });
+
+  await consumer.connect();
+  await consumer.subscribe({ topic, fromBeginning: true });
+  await consumer.run({
+    eachMessage: async function ({ topic, partition, message }) {
+      console.log(`message from topic(${topic}): ${message.value.toString()}`);
+      console.log(`message header ${message.headers.foo}`);
+      messagesConsumed++;
+    },
+  });
+
+  await new Promise((resolve, reject) => {
+    let count = 0;
+    const id = setInterval(() => {
+      count++;
+      if (messagesConsumed === 3) {
+        clearInterval(id);
+        resolve();
+      } else if (count > 10) {
+        // set a limit of 10s/retries
+        clearInterval(id);
+        reject(new Error('not receiving all messages after 10s'));
+      }
+    }, 1000);
+  });
+}
+
+run()
+  .catch((err) => {
+    console.warn('run err:', err);
+  })
+  .finally(async () => {
+    console.log('disconnecting Kafkajs client');
+    await producer.disconnect();
+    await consumer.disconnect();
+    await admin.deleteTopics({ topics: [topic] });
+    await admin.disconnect();
+  });

lib/instrumentation/index.js

@@ -84,6 +84,7 @@ var MODULE_PATCHERS = [
   { modPath: 'http2' },
   { modPath: 'ioredis' },
   { modPath: 'jade' },
+  { modPath: 'kafkajs' },
   { modPath: 'knex' },
   { modPath: 'koa' },
   { modPath: 'koa-router' },