OpenTelemetry Collector - Sidecar

Örnek

sidecar.yaml şöyledir

apiVersion: opentelemetry.io/v1alpha1
kind: OpenTelemetryCollector
metadata:
  name: sidecar
spec:
  mode: sidecar
  config: |
    receivers:
      otlp:
        protocols:
          grpc:
          http:
    processors:
      batch:
    exporters:
      logging:
      otlp:
        endpoint: "<path_to_central_collector>:4317"
    service:
      telemetry:
        logs:
          level: "debug"
      pipelines:
        traces:
          receivers: [otlp]
          processors: []
          exporters: [logging, otlp]

instrumentation.yaml  şöyledir

apiVersion: opentelemetry.io/v1alpha1
kind: Instrumentation
metadata:
  name: java-instrumentation
spec:
  propagators:
    - tracecontext
    - baggage
    - b3
  sampler:
    type: always_on
  java:

deployment.yaml şöyledir

apiVersion: apps/v1
kind: Deployment
metadata:
  name: petclinic
  labels:
    app: petclinic
spec:
  replicas: 1
  selector:
    matchLabels:
      app: petclinic
  template:
    metadata:
      annotations:
        instrumentation.opentelemetry.io/inject-java: 'true'
        sidecar.opentelemetry.io/inject: 'sidecar'
      labels:
        app: petclinic
    spec:
      containers:
      - name: petclinic
        image: <path_to_petclinic_image>
        ports:
        - containerPort: 8080

Açıklaması şöyle

To enable the instrumentation, we need to update the deployment file and add annotations to it. This way we tell the OpenTelemetry Operator to inject the sidecar and the java-instrumentation to our application.

petclinic-svc.yaml şöyledir

apiVersion: v1
kind: Service
metadata:
  name: petclinic-service
spec:
  selector:
    app: petclinic
  ports:
    - protocol: TCP
      port: 80
      targetPort: 8080