1.2. Components


See the following tables for information about components that are installed and enabled on the hub cluster by default and the managed cluster. See what components are required and if it applies, the default value that is required.

1.2.1. Default enabled services

Expand
ServiceDescriptionRequired

management-ingress

Unifies all management services behind a network ingress controller with predictable annotations and TLS protection. This service should not be accessed directly.

Yes

cert-manager

This service manages the lifecycle of certificates.

Yes

cert-manager-webhook

This service extends the Kubernetes API server so the certificate manager resources can be dynamically validated.

Yes

configmap-watcher

This service can be used to restart pods when a dependent config map is updated.

Yes

mongo-db

All platform services that require a persistent data store use the MongoDB service. Highly available topologies for MongoDB are supported out of the box. This is a service that should not be accessed directly.

Yes, 5G

1.2.2. Default enabled hub cluster components

Expand
ServiceDescriptionRequired

application-ui

The web console for managing the lifecycle of applications.

Yes

console-api

Provide the backend API for the console-ui service.

Yes

console-ui

Provide a view of the resources available in the cluster with support for creation, modification, or removal.

Yes

console-header

Provides a set of services available in the header of the web console

Yes

grc-ui

The web console for Governance and Risk management in Red Hat Advanced Cluster Management for Kubernetes

Yes

grc-ui-api

The API service for managing Governance and Risk in Red Hat Advanced Cluster Management for Kubernetes

Yes

grc-policy-propogator

Process events and requests to Red Hat Advanced Cluster Management for Kubernetes resources

Yes

hive

Provides cluster provisioning and life cycle management

Yes

klusterlet-addon-controller

Handles the create/update/delete of klusterlet-addons on the managed cluster

Yes

kui-web-terminal

Provides the Visual Web Terminal.

Yes

managedcluster-import-controller

Controller that handles cluster lifecycle management

Yes

mcm-apiserver

A REST API server for managing Kubernetes objects related to Red Hat Advanced Cluster Management for Kubernetes

Yes

mcm-controller

Service that processes events and requests to Red Hat Advanced Cluster Management for Kubernetes resources

Yes

mcm-webhook

This service extends the Kubernetes API server so the mcm-apiserver resources can be dynamically validated.

Yes

multicluster-operators

Manages and reconciles subscriptions

Yes

multiclusterhub-operator

Operator for installing Red Hat Advanced Cluster Management for Kubernetes on a hub cluster

Yes

multiclusterhub-repo

Service for hosting internal-facing Helm repository, pre-populated with required component Helm charts

Yes

redisgraph-tls

Cache for search data

Yes

search-aggregator

Receives and indexes data from search-collector in managed clusters

Yes

search-api

Provides the API for the search service

Yes

search-collector

Provides the capability to search for resources using the console and Visual Web Terminal

Yes

topology-aggregator

Indexes data received for the topology views

Yes

topology

Provides the user interface for the Topology dashboard

Yes

topology-api

Provides the backend services for the topology-ui service

Yes

1.2.3. Default enabled managed cluster components

The following table shows the services that are installed on the managed cluster:

Expand
ServiceDescriptionRequired

applicationManager

Processes events and other requests to managed resources.

Yes

certPolicyController

Monitors certificate expiration based on distributed policies.

Yes

iamPolicyController

Monitors identity controls based on distributed policies

Yes

imageRegistry

quay.io/open-cluster-management

Yes

klusterlet-addon-operator

Handles the deployment of internal Helm chart components

Yes

policyController

Distributes configured policies and monitors Kubernetes-based policies

Yes

searchCollector

Collects cluster data to be indexed by search components on the hub cluster

Yes

workmgr

Component that handles endpoint work requests and managed cluster status

Yes

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