apm nodejs agent cannot cp: can't stat '/autoinstrumentation/.'

[dicky-yuen]

Describe the bug

From Elastic migrate from apm attacher to EDOT, it was mentioned that using the original APM agent for Node.js should still work. However, after following the guide, the pod is initializing but encountering an error 'cp: can't stat '/autoinstrumentation/.': No such file or directory'. It appears that the APM agent for Node.js is missing the expected autoinstrumentation directory.

To Reproduce

Steps to reproduce the behavior:

1. Applied the Instrumentation config

apiVersion: opentelemetry.io/v1alpha1
kind: Instrumentation
metadata:
  name: elastic-apm-instrumentation
  namespace: system
spec:
  exporter:
    endpoint: http://opentelemetry-kube-stack-daemon-collector.opentelemetry.svc.cluster.local:4318
  java:
    image: docker.elastic.co/observability/apm-agent-java:1.53.0
    env:
      - name: ELASTIC_APM_SERVER_URL
        value: "xxx"
      - name: ELASTIC_APM_API_KEY
        value: "xxx"
      - name: ELASTIC_APM_ENVIRONMENT
        value: "STAGING"
      - name: ELASTIC_APM_LOG_SENDING
        value: "true"
      - name: ELASTIC_APM_LOG_LEVEL
        value: "info"
  nodejs:
    image: docker.elastic.co/observability/apm-agent-nodejs:4.13.0
    env:
      - name: ELASTIC_APM_SERVER_URL
        value: "xxx"
      - name: ELASTIC_APM_API_KEY
        value: "xxx"
      - name: ELASTIC_APM_CAPTURE_BODY
        value: "all"
      - name: ELASTIC_APM_LOG_LEVEL
        value: "trace"

2. add annotation: instrumentation.opentelemetry.io/inject-nodejs: "system/elastic-apm-instrumentation"
3. pod initing get error "cp: can't stat '/autoinstrumentation/.': No such file or directory"

Expected behavior

It can see log in APM

Environment (please complete the following information)

• OS: Linux/ AWS EKS
• Node.js version: 20
• APM Server version: 8.18.0
• Agent version: 4.13.0

How are you starting the agent? (please tick one of the boxes)

K8s auto-instrumentation