not getting metrics when using sidecar based approach of otel collector for python app

[navnitkum]

Component(s)

auto-instrumentation

Describe the issue you're reporting

collector logs

2024-11-10T08:54:30.715Z	info	[email protected]/service.go:221	Everything is ready. Begin running and processing data.
2024-11-11T11:02:26.059Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 1}
2024-11-11T11:02:41.030Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 2}
2024-11-11T11:02:42.441Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 1}
2024-11-11T11:03:02.414Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 2}
2024-11-11T11:03:06.030Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 1}
2024-11-11T11:03:16.033Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 1}
2024-11-11T11:03:22.414Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 1}
2024-11-11T11:03:27.414Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 1}
2024-11-11T11:03:41.031Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 1}
2024-11-11T11:03:52.415Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 2}
2024-11-11T11:04:11.033Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 1}
2024-11-11T11:04:12.418Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 2}
2024-11-11T11:04:27.416Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 1}
2024-11-11T11:04:31.033Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 1}
2024-11-11T11:04:56.034Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 1}
2024-11-11T11:05:16.035Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 1}
2024-11-11T11:05:41.037Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 1}
2024-11-11T11:06:01.036Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 1}
2024-11-11T11:06:31.038Z	info	TracesExporter	{"kind": "exporter", "data_type": "traces", "name": "debug", "resource spans": 1, "spans": 1}

collector yaml

apiVersion: opentelemetry.io/v1beta1
kind: OpenTelemetryCollector
metadata:
  labels:
    app.kubernetes.io/managed-by: opentelemetry-operator
  name: apm
  namespace: kube-tracing
spec:
  args:
    feature-gates: '-component.UseLocalHostAsDefaultHost'
  config:
    exporters:
      debug: {}
      otlphttp/tempo:
        endpoint: http://tempo.monitoring.svc.cluster.local:4318/
        tls:
          insecure: true
      otlphttp/victoriametrics:
        compression: gzip
        encoding: proto
        endpoint: >-
          http://common-victoria-metrics-agent.monitoring.svc.cluster.local:8429/api/v1/push
        tls:
          insecure: true
    extensions:
      health_check: {}
    processors: {}
    receivers:
      otlp:
        protocols:
          grpc:
            endpoint: 0.0.0.0:4317
          http:
            endpoint: 0.0.0.0:4318
    service:
      extensions:
        - health_check
      pipelines:
        metrics:
          exporters:
            - debug
            - otlphttp/victoriametrics
          receivers:
            - otlp
        traces:
          exporters:
            - otlphttp/tempo
            - debug
          receivers:
            - otlp

sidecar.yaml

apiVersion: opentelemetry.io/v1beta1
kind: OpenTelemetryCollector
metadata:
  name: sidecar
  namespace: kube-tracing
spec:
  args:
    feature-gates: '-component.UseLocalHostAsDefaultHost'
  config:
    exporters:
      otlphttp:
        endpoint: http://apm-collector.kube-tracing.svc.cluster.local:4318
    receivers:
      otlp:
        protocols:
          grpc: null
          http: null
    service:
      pipelines:
        traces:
          exporters:
            - otlphttp
          receivers:
            - otlp
      telemetry:
        logs:
          level: debug
  configVersions: 3
  daemonSetUpdateStrategy: {}
  deploymentUpdateStrategy: {}
  ingress:
    route: {}
  ipFamilyPolicy: SingleStack
  managementState: managed
  mode: sidecar
 

i am not getting any auto-instrumented metrics for my python app

apiVersion: apps/v1
kind: Deployment
metadata:
  name: dice-server
  namespace: kube-tracing
spec:
  replicas: 1
  selector:
    matchLabels:
      app: dice-server
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: dice-server
      annotations:
        instrumentation.opentelemetry.io/inject-python: 'true'
        instrumentation.opentelemetry.io/python-container-names: dice-server
        sidecar.opentelemetry.io/inject: 'true'
    spec:
      containers:
        - name: dice-server
          image: >-
            asia-southeast2-docker.pkg.dev/lip-prod-sre-3a7f/apm-golang/dice-server:v3
          ports:
            - containerPort: 8080
              protocol: TCP

[jaronoff97]

I'm pretty sure this is because the service we create for sidecars doesn't target the collector sidecar correctly, I can look into this next week!