k3s-configs/infra/monitoring/values.yaml

defaultRules:
  rules:
    etcd: false
    kubeControllerManager: true 

kubeEtcd:
  enabled: false
kubeControllerManager:
  enabled: false
kubeScheduler:
  enabled: false

grafana:
  admin:
    existingSecret: grafana-admin-secret
    userKey: username
    passwordKey: password