:_content-type: ASSEMBLY
[id="cluster-operators-ref"]
= Cluster Operators reference
include::_attributes/common-attributes.adoc[]
:context: cluster-operators-ref

toc::[]

This reference guide indexes the _cluster Operators_ shipped by Red Hat that serve as the architectural foundation for {product-title}. Cluster Operators are installed by default, unless otherwise noted, and are managed by the Cluster Version Operator (CVO). For more details on the control plane architecture, see xref:../architecture/control-plane.adoc#operators-overview_control-plane[Operators in {product-title}].

Cluster administrators can view cluster Operators in the {product-title} web console from the *Administration* -> *Cluster Settings* page.

[NOTE]
====
Cluster Operators are not managed by Operator Lifecycle Manager (OLM) and OperatorHub. OLM and OperatorHub are part of the link:https://operatorframework.io/[Operator Framework] used in {product-title} for installing and running optional xref:../architecture/control-plane.adoc#olm-operators_control-plane[add-on Operators].
====

Some of the following cluster Operators can be disabled prior to installation. For more information see xref:../installing/cluster-capabilities.adoc#cluster-capabilities[cluster capabilities].

include::modules/cluster-bare-metal-operator.adoc[leveloffset=+1]

[role="_additional-resources"]
.Additional resources
* xref:../installing/cluster-capabilities.adoc#cluster-bare-metal-operator_cluster-capabilities[Bare-metal capability]

include::modules/baremetal-event-relay.adoc[leveloffset=+1]
include::modules/cloud-credential-operator.adoc[leveloffset=+1]

[role="_additional-resources"]
[discrete]
[id="additional-resources_cluster-op-ref-cco"]
=== Additional resources

* xref:../authentication/managing_cloud_provider_credentials/about-cloud-credential-operator.adoc#about-cloud-credential-operator[About the Cloud Credential Operator]
* xref:../rest_api/security_apis/credentialsrequest-cloudcredential-openshift-io-v1.adoc#credentialsrequest-cloudcredential-openshift-io-v1[`CredentialsRequest` custom resource]

include::modules/cluster-authentication-operator.adoc[leveloffset=+1]
include::modules/cluster-autoscaler-operator.adoc[leveloffset=+1]
include::modules/cluster-cloud-controller-manager-operator.adoc[leveloffset=+1]
include::modules/cluster-capi-operator.adoc[leveloffset=+1]
include::modules/cluster-config-operator.adoc[leveloffset=+1]

include::modules/cluster-csi-snapshot-controller-operator.adoc[leveloffset=+1]

[role="_additional-resources"]
.Additional resources
* xref:../installing/cluster-capabilities.adoc#cluster-csi-snapshot-controller-operator_cluster-capabilities[CSI snapshot controller capability]

include::modules/cluster-image-registry-operator.adoc[leveloffset=+1]
include::modules/cluster-machine-approver-operator.adoc[leveloffset=+1]
include::modules/cluster-monitoring-operator.adoc[leveloffset=+1]
include::modules/cluster-network-operator.adoc[leveloffset=+1]
include::modules/cluster-samples-operator.adoc[leveloffset=+1]

[role="_additional-resources"]
.Additional resources

* xref:../installing/cluster-capabilities.adoc#cluster-samples-operator_cluster-capabilities[OpenShift samples capability]

include::modules/cluster-storage-operator.adoc[leveloffset=+1]

[role="_additional-resources"]
.Additional resources
* xref:../installing/cluster-capabilities.adoc#cluster-storage-operator_cluster-capabilities[Storage capability]

include::modules/cluster-version-operator.adoc[leveloffset=+1]
include::modules/console-operator.adoc[leveloffset=+1]

[role="_additional-resources"]
.Additional resources
* xref:../installing/cluster-capabilities.adoc#console-operator_cluster-capabilities[Web console capability]

include::modules/control-plane-machine-set-operator.adoc[leveloffset=+1]

[role="_additional-resources"]
[discrete]
[id="additional-resources_cluster-op-ref-cpmso"]
=== Additional resources

* xref:../machine_management/control_plane_machine_management/cpmso-about.adoc#cpmso-about[About control plane machine sets]
* xref:../rest_api/machine_apis/controlplanemachineset-machine-openshift-io-v1.adoc#controlplanemachineset-machine-openshift-io-v1[`ControlPlaneMachineSet` custom resource]

include::modules/cluster-dns-operator.adoc[leveloffset=+1]
include::modules/etcd-operator.adoc[leveloffset=+1]
include::modules/ingress-operator.adoc[leveloffset=+1]
include::modules/insights-operator.adoc[leveloffset=+1]

[role="_additional-resources"]
.Additional resources

* xref:../installing/cluster-capabilities.adoc#insights-operator_cluster-capabilities[Insights capability]
* See xref:../support/remote_health_monitoring/about-remote-health-monitoring.adoc#about-remote-health-monitoring[About remote health monitoring] for details about Insights Operator and Telemetry.

include::modules/kube-apiserver-operator.adoc[leveloffset=+1]
include::modules/kube-controller-manager-operator.adoc[leveloffset=+1]
include::modules/cluster-kube-scheduler-operator.adoc[leveloffset=+1]
include::modules/cluster-kube-storage-version-migrator-operator.adoc[leveloffset=+1]
include::modules/machine-api-operator.adoc[leveloffset=+1]
include::modules/machine-config-operator.adoc[leveloffset=+1]
include::modules/operator-marketplace.adoc[leveloffset=+1]

[role="_additional-resources"]
.Additional resources

* xref:../installing/cluster-capabilities.adoc#marketplace-operator_cluster-capabilities[Marketplace capability]

include::modules/node-tuning-operator.adoc[leveloffset=+1]

[discrete]
[role="_additional-resources"]
[id="cluster-operators-ref-nto-addtl-resources"]
=== Additional resources

* xref:../scalability_and_performance/cnf-low-latency-tuning.adoc#cnf-understanding-low-latency_cnf-master[Low latency tuning of OCP nodes]

include::modules/openshift-apiserver-operator.adoc[leveloffset=+1]
include::modules/cluster-openshift-controller-manager-operators.adoc[leveloffset=+1]

[id="cluster-operators-ref-olm"]
== Operator Lifecycle Manager Operators
[discrete]
include::modules/olm-overview.adoc[leveloffset=+2]
[discrete]
include::modules/olm-architecture.adoc[leveloffset=+2]
[discrete]
include::modules/olm-arch-olm-operator.adoc[leveloffset=+2]
[discrete]
include::modules/olm-arch-catalog-operator.adoc[leveloffset=+2]
[discrete]
include::modules/olm-arch-catalog-registry.adoc[leveloffset=+2]

[role="_additional-resources"]
[discrete]
[id="cluster-operators-ref-olm-addtl-resources"]
=== Additional resources

* For more information, see the sections on xref:../operators/understanding/olm/olm-understanding-olm.adoc#olm-understanding-olm[understanding Operator Lifecycle Manager (OLM)].

include::modules/openshift-service-ca-operator.adoc[leveloffset=+1]
include::modules/vsphere-problem-detector-operator.adoc[leveloffset=+1]

[role="_additional-resources"]
.Additional resources

* For more details, see xref:../installing/installing_vsphere/using-vsphere-problem-detector-operator.adoc#using-vsphere-problem-detector-operator[Using the vSphere Problem Detector Operator].
