Chapitre 3. Cluster capabilities


Cluster administrators can use cluster capabilities to enable or disable optional components prior to installation. Cluster administrators can enable cluster capabilities at anytime after installation.

Note

Cluster administrators cannot disable a cluster capability after it is enabled.

3.1. Selecting cluster capabilities

You can select cluster capabilities by following one of the installation methods that include customizing your cluster, such as "Installing a cluster on AWS with customizations" or "Installing a cluster on GCP with customizations".

During a customized installation, you create an install-config.yaml file that contains the configuration parameters for your cluster. You can use the following configuration parameters to select cluster capabilities:

capabilities:
  baselineCapabilitySet: v4.11 1
  additionalEnabledCapabilities: 2
  - CSISnapshot
  - Console
  - Storage
1
Defines a baseline set of capabilities to install. Valid values are None, vCurrent and v4.x. If you select None, all optional capabilities will be disabled. The default value is vCurrent, which enables all optional capabilities.
Note

v4.x refers to any value up to and including the current cluster version. For example, valid values for a OpenShift Container Platform 4.12 cluster are v4.11 and v4.12.

2
Defines a list of capabilities to explicitly enable. These will be enabled in addition to the capabilities specified in baselineCapabilitySet.
Note

In this example, the default capability is set to v4.11. The additionalEnabledCapabilities field enables additional capabilities over the default v4.11 capability set.

The following table describes the baselineCapabilitySet values.

Tableau 3.1. Cluster capabilities baselineCapabilitySet values description
ValeurDescription

vCurrent

Specify when you want to automatically add new capabilities as they become recommended.

v4.11

Specify when you want the capabilities recommended in OpenShift Container Platform 4.11 and not automatically enable capabilities, which might be introduced in later versions. The capabilities recommended in OpenShift Container Platform 4.11 are baremetal, marketplace, and openshift-samples.

v4.12

Specify when you want the capabilities recommended in OpenShift Container Platform 4.12 and not automatically enable capabilities, which might be introduced in later versions. The capabilities recommended in OpenShift Container Platform 4.12 are baremetal, marketplace, openshift-samples, Console, Insights, Storage and CSISnapshot.

None

Specify when the other sets are too large, and you do not need any capabilities or want to fine-tune via additionalEnabledCapabilities.

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