This repository has a working example of how the Datadog MutatingAdmissionWebhook works.

The examples are explained in this blog post in detail.

The kind-cluster/cluster.yaml files creates a kind cluster mapping the 30000 port of your local machine to the 30000 port of the node.

kind create cluster --config kind-cluster/cluster.yaml

export DD_API_KEY=<YOUR_DATADOG_API_KEY>
helm install datadog --set datadog.apiKey=$DD_API_KEY datadog/datadog -f datadog/values.yaml

In this example the MutatingAdmissionWebhook just injects several environment variables.

kubectl apply -f ecommerce/basic-mutation

In this example the MutatingAdmissionWebhook injects and configures the Python autoinstrumentation libraries for the advertisements and discounts deployments.

kubectl apply -f ecommerce/library-injection