How do you set the orchestrator.cluster.name in Filebeat?

I'm using Filebeat in Kubernetes to ship the logs to Elasticsearch. I've noticed that the log messages are missing the orchestrator.cluster.name fields. None of the orchestrator fields are being set. Orchestrator Fields | Elastic Common Schema (ECS) Reference [8.16] | Elastic I am using the add_host_metadata and the add_kubernetes_metadata processors

This is the information about the cluster.

$ kubectl config view 

apiVersion: v1
clusters:
- cluster:
    certificate-authority-data: DATA+OMITTED
    server: https://127.0.0.1:6443
  name: docker-desktop
contexts:
- context:
    cluster: docker-desktop
    user: docker-desktop
  name: docker-desktop
current-context: docker-desktop
kind: Config
preferences: {}
users:
- name: docker-desktop
  user:
    client-certificate-data: DATA+OMITTED
    client-key-data: DATA+OMITTED

I cannot seem to understand where these fields are set from. I'm running ELK via the ECK operator version 8.16.0.