Component Reference

In UnderStack, a component is an ArgoCD Application generated by
charts/argocd-understack.

There are three main ways to customize a component:

1. Enable or disable what ArgoCD deploys.
2. Override Helm values or Kustomize overlays for that component.
3. Change runtime state managed by deployed services.

Modifying the Deployment

Component enablement is controlled through your deployment values file,
typically $CLUSTER_NAME/deploy.yaml.

Disabling a Component

Set enabled: false (or leave it disabled by default):

$CLUSTER_NAME/deploy.yaml

site:
  monitoring:
    enabled: false

For newer components that use separate app/config controls, disable both:

$CLUSTER_NAME/deploy.yaml

site:
  cert_manager:
    installApp: false
    installConfigs: false

Enabling a Component

Set enabled: true for that component key:

$CLUSTER_NAME/deploy.yaml

site:
  monitoring:
    enabled: true

For newer components, enable the appropriate options:

$CLUSTER_NAME/deploy.yaml

site:
  cert_manager:
    installApp: true     # Deploy the Helm chart
    installConfigs: true # Deploy site-specific configs

Modifying Helm Values or Kustomize Overlays

Use your deployment repo for environment-specific changes:

• Helm values: $CLUSTER_NAME/<component>/values.yaml
• Kustomize overlays/resources: $CLUSTER_NAME/<component>/

See Deploy Repo for deployment repo layout.

Component Pages

Use the pages below for component-specific prerequisites, required inputs,
enablement defaults, validation, and troubleshooting notes.

Component	Scope
argo-events	site
argo-events-workflows	global
argo-workflows	site
cdn	site
cert-manager	global, site
chrony	site
cilium	global, site
cluster-issuer	global, site
cnpg-system	global
dex	global
envoy-configs	global, site
envoy-gateway	global, site
etcdbackup	global, site
external-dns	global, site
external-secrets	global, site
global-workflows	global
ingress-nginx	global, site
karma	global, site
mariadb-operator	site
monitoring	global, site
nautobot	global
nautobot-api-tokens	global
nautobot-site	site
nautobotop	global
openebs	global, site
openstack	site
openstack-exporter	site
openstack-helm	site
openstack-memcached	site
openstack-resource-controller	global, site
opentelemetry-operator	global, site
openvswitch	site
otel-collector	global, site
ovn	site
rabbitmq-system	global, site
rook	global, site
rook-ceph-operator	global, site
rook-ceph-cluster	global, site
sealed-secrets	global, site
site-workflows	site
snmp-exporter	site
undersync	site
keystone	site
glance	site
cinder	site
ironic	site
neutron	site
placement	site
nova	site
octavia	site
horizon	site
skyline	site