Instrumentation : global environment variables not injected in SDK mode

[nlamirault]

Component(s)

auto-instrumentation

What happened?

Description

We can't use auto-instrumentation in our applications, so we use the SDK mode:

  annotations:                                                                                                                                             │
    instrumentation.opentelemetry.io/inject-sdk: opentelemetry/core

We would like to inject these environments variables:

  - name: OTEL_K8S_NODE_NAME
    valueFrom:
      fieldRef:
        fieldPath: spec.nodeName
  - name: OTEL_EXPORTER_OTLP_TRACES_ENDPOINT
    value: http://alloy-dev-alloy-traces.opentelemetry:4317
  - name: OTEL_EXPORTER_OTLP_TRACES_PROTOCOL
    value: grpc

But in the application, we have only these variables:

OTEL_RESOURCE_ATTRIBUTES_POD_NAME
OTEL_RESOURCE_ATTRIBUTES=deployment.environment.name=xxxx,k8s.container.name=xxxxx,k8s.deployment.name=xxxxx,k8s.namespace.name=xxxxx,k8s.node.name=ip-10-0-0-194.eu-west-1.compute.internal,k8s.pod.name=xxxxxx-75c4496b5f-dbz8r,k8s.replicaset.name=xxxxx-75c4496b5f,service.instance.id=fxxxxxx,service.namespace=xxxxx,service.version=xxxxx
OTEL_NODE_IP=10.0.0.194
OTEL_PROPAGATORS=tracecontext,baggage
OTEL_EXPORTER_OTLP_ENDPOINT=alloy-dev-alloy-gateway.opentelemetry.svc.cluster.local:4317
OTEL_TRACES_SAMPLER=parentbased_traceidratio
OTEL_SERVICE_NAME=xxxxxxx
OTEL_RESOURCE_ATTRIBUTES_NODE_NAME=ip-10-0-0-194.eu-west-1.compute.internal
OTEL_POD_IP=10.200.226.231

Steps to Reproduce

Create an Instrumentation:

apiVersion: opentelemetry.io/v1alpha1
kind: Instrumentation
metadata:
  name: core-nodejs
  namespace: opentelemetry
spec:
  apacheHttpd:
    configPath: /usr/local/apache2/conf
    image: ghcr.io/open-telemetry/opentelemetry-operator/autoinstrumentation-apache-httpd:1.0.4
    resourceRequirements:
      limits:
        cpu: 500m
        memory: 256Mi
      requests:
        cpu: 1m
        memory: 128Mi
    version: "2.4"
    volumeClaimTemplate:
      metadata: {}
      spec:
        resources: {}
  defaults: {}
  dotnet:
    image: ghcr.io/open-telemetry/opentelemetry-operator/autoinstrumentation-dotnet:1.2.0
    resourceRequirements:
      limits:
        cpu: 500m
        memory: 256Mi
      requests:
        cpu: 50m
        memory: 128Mi
    volumeClaimTemplate:
      metadata: {}
      spec:
        resources: {}
  env:
  - name: OTEL_K8S_NODE_NAME
    valueFrom:
      fieldRef:
        fieldPath: spec.nodeName
  - name: OTEL_EXPORTER_OTLP_TRACES_ENDPOINT
    value: http://alloy-dev-alloy-traces.opentelemetry:4317
  - name: OTEL_EXPORTER_OTLP_TRACES_PROTOCOL
    value: grpc
  exporter:
    endpoint: alloy-dev-alloy-gateway.opentelemetry.svc.cluster.local:4317
  go:
    image: ghcr.io/open-telemetry/opentelemetry-go-instrumentation/autoinstrumentation-go:v0.22.1
    resourceRequirements:
      limits:
        cpu: 500m
        memory: 256Mi
      requests:
        cpu: 50m
        memory: 64Mi
    volumeClaimTemplate:
      metadata: {}
      spec:
        resources: {}
  java:
    image: ghcr.io/open-telemetry/opentelemetry-operator/autoinstrumentation-java:1.33.6
    resources:
      limits:
        cpu: 500m
        memory: 256Mi
      requests:
        cpu: 50m
        memory: 64Mi
    volumeClaimTemplate:
      metadata: {}
      spec:
        resources: {}
  nginx:
    configFile: /etc/nginx/nginx.conf
    image: ghcr.io/open-telemetry/opentelemetry-operator/autoinstrumentation-apache-httpd:1.0.4
    resourceRequirements:
      limits:
        cpu: 500m
        memory: 256Mi
      requests:
        cpu: 1m
        memory: 128Mi
    volumeClaimTemplate:
      metadata: {}
      spec:
        resources: {}
  nodejs:
    env: []
    image: ghcr.io/open-telemetry/opentelemetry-operator/autoinstrumentation-nodejs:0.64.1
    resourceRequirements:
      limits:
        cpu: 500m
        memory: 256Mi
      requests:
        cpu: 50m
        memory: 128Mi
    volumeClaimTemplate:
      metadata: {}
      spec:
        resources: {}
  propagators:
  - tracecontext
  - baggage
  python:
    image: ghcr.io/open-telemetry/opentelemetry-operator/autoinstrumentation-python:0.59b0
    resourceRequirements:
      limits:
        cpu: 500m
        memory: 256Mi
      requests:
        cpu: 50m
        memory: 64Mi
    volumeClaimTemplate:
      metadata: {}
      spec:
        resources: {}
  resource: {}
  sampler:
    type: parentbased_traceidratio

Expected Result

Actual Result

Kubernetes Version

1.3.0

Operator version

0.140.0

Collector version

0.138.0

Environment information

No response

Log output

Additional context

No response

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