Chapter 5. Using feature gates in a hosted cluster
Chapter 5. Using feature gates in a hosted cluster You can use feature gates in a hosted cluster to enable features that are not part of the default set of features. You can enable the TechPreviewNoUpgrade feature set by using feature gates in your hosted cluster. 5.1. Enabling feature sets by using feature gates You can enable the TechPreviewNoUpgrade feature set in a hosted cluster by editing the HostedCluster custom resource (CR) with the OpenShift CLI. Prerequisites You installed the OpenShift CLI ( oc ). Procedure Open the HostedCluster CR for editing on the hosting cluster by running the following command: USD oc edit <hosted_cluster_name> -n <hosted_cluster_namespace> Define the feature set by entering a value in the featureSet field. For example: apiVersion: hypershift.openshift.io/v1beta1 kind: HostedCluster metadata: name: <hosted_cluster_name> 1 namespace: <hosted_cluster_namespace> 2 spec: configuration: featureGate: featureSet: TechPreviewNoUpgrade 3 1 Specifies your hosted cluster name. 2 Specifies your hosted cluster namespace. 3 This feature set is a subset of the current Technology Preview features. Warning Enabling the TechPreviewNoUpgrade feature set on your cluster cannot be undone and prevents minor version updates. This feature set allows you to enable these Technology Preview features on test clusters, where you can fully test them. Do not enable this feature set on production clusters. Save the file to apply the changes. Verification Verify that the TechPreviewNoUpgrade feature gate is enabled in your hosted cluster by running the following command: USD oc get featuregate cluster -o yaml Additional resources FeatureGate [config.openshift.io/v1 ]
oc edit <hosted_cluster_name> -n <hosted_cluster_namespace> apiVersion: hypershift.openshift.io/v1beta1 kind: HostedCluster metadata: name: <hosted_cluster_name> 1 namespace: <hosted_cluster_namespace> 2 spec: configuration: featureGate: featureSet: TechPreviewNoUpgrade 3 oc get featuregate cluster -o yaml