Sentry + Opentelemetry Go Example

Requirements

To run this example, you will need a kubernetes cluster. This example has been tried and tested on

• Minikube
• AWS Elastic Kuberetes Service and should work on any configured kubernetes environment.

K8S components used

• Config Map (otel-collector-conf) for opentelemetry collector
• Service to expose port 4317 of collector deployment (to recieve OTLP traces)
• Deployment
  • Opentelemetry Collector
  • Instrumented Golang application Deployment

Steps

1. Create an observabilitiy namespace in the cluster.

$ kubectl create ns observability

2. Change the configmap in k8s.yaml and add your sentry DSN in line 31

      sentry:
        dsn: <your sentry DSN here>

3. Apply the kubernetes configuration in the observability namespace.

$ kubectl apply -f k8s.yaml -n observability

4. Once the deployment is done, port forward the sample gin server to your localhost (ensure that your 8088 port is free from any pre-binding, i.e. no other server is using that)

$ kubectl port-forward -n observability svc/otlp-instrumentation-demo 8088:8088

5. Visit your localhost:8088/users/123

6. Visit your Sentry UI to see something similar to this