Red Hat OpenShift Container Platform

Adding unauthenticated groups to cluster roles

Grant unauthenticated users access to specific cluster roles to enable features that require cluster access without authentication, such as external webhooks or automated token management.

You can add unauthenticated users to the following cluster roles:

system:scope-impersonation
system:webhook
system:oauth-token-deleter
self-access-reviewer

Always verify compliance with your organization’s security standards when modifying unauthenticated access.

Prerequisites

You have access to the cluster as a user with the cluster-admin role.
You have installed the OpenShift CLI (oc).

Procedure

Create a YAML file named add-<cluster_role>-unauth.yaml and add the following content:

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
 annotations:
   rbac.authorization.kubernetes.io/autoupdate: "true"
 name: <cluster_role>access-unauthenticated
roleRef:
 apiGroup: rbac.authorization.k8s.io
 kind: ClusterRole
 name: <cluster_role>
subjects:
 - apiGroup: rbac.authorization.k8s.io
   kind: Group
   name: system:unauthenticated

Apply the configuration by running the following command:
```
$ oc apply -f add-<cluster_role>.yaml
```