This repository contains the setup for my demo at KubeCon+CloudNativeCon Europe 2025.

The demo is comprised of multiple different open source projects, amongst others;

• OpenTelemetry for telemetry collection and auto-instrumentation
• Prometheus for metric storage
• Jaeger for tracing storage
• Perses for dashboards as code

Further this project makes use of kind to run a local cluster, and helm to deploy tools.

The demo also includes to applications written in golang and java to showcase, the auto-instrumentatio features of OpenTelemetry Operator.

1. Boot the cluster:

make cluster

2. Create the Dash0 secrets (optional - remove dash0 in the collector configurations)

kubectl create namespace opentelemetry
export DASH0_AUTH_TOKEN="..."
kubectl create secret generic dash0-secrets --from-literal=dash0-authorization-token=${DASH0_AUTH_TOKEN} --namespace opentelemetry

3. Install the prequisuites:

make install-all-prereqs

4. Let's have a look at the Instrumentation resource, and deploy it.

make instrumentation

5. let's have a look at the OpenTelemetryCollector resource, and deploy it.

make deploy-otel-collector

6. Let's build and deploy our services

make docker
make kind-load
make deploy-k8s

7. Show-case the annotation in the two Deployment's

Add the annotation

instrumentation.opentelemetry.io/inject-go: "opentelemetry/instrumentation"

8. Let's deploy our dashboards

make deploy-perses-dashboards