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OpenTelemetry Collector ​

Let's see how to run OpenTelemetry Collector in a Kubernetes cluster.

NOTE

OpenTelemetry Collector Contrib will be installed by default

Repository ​

We'll use the official Helm chart:

bash
helm repo add open-telemetry https://open-telemetry.github.io/opentelemetry-helm-charts
helm repo update

Configuration ​

Create the values.yaml file to override default parameters.

yaml
opentelemetry-collector:
  mode: daemonset
  config:
    receivers:
      jaeger: null
      zipkin: null
    service:
      pipelines:
        logs:
          exporters:
            - logging
          processors:
            - memory_limiter
            - batch
          receivers:
            - otlp
        metrics:
          exporters:
            - logging
          processors:
            - memory_limiter
            - batch
          receivers:
            - otlp
            # - prometheus
        traces:
          exporters:
            - logging
          processors:
            - memory_limiter
            - batch
          receivers:
            - otlp
  ports:
    jaeger-compact:
      enabled: false
    jaeger-thrift:
      enabled: false
    jaeger-grpc:
      enabled: false
    zipkin:
      enabled: false

Deployment ​

Install the application:

bash
helm upgrade --install otel-collector open-telemetry/opentelemetry-collector -f values.yaml --namespace otel-collector --create-namespace

Watch objects being created:

bash
kubectl get pod -n opentelemetry-collector --watch

Optional check ​

Forwards port for local access:

bash
kubectl port-forward daemonsets/opentelemetry-collector-agent 4317:4317 -n opentelemetry-collector

Clean-up ​

Uninstall the application and delete the namespace:

bash
helm uninstall otel-collector -n otel-collector
kubectl delete ns otel-collector