红帽全球峰会1.3. About authorization in OpenShift Container Platform
Authorization involves determining whether the identified user has permissions to perform the requested action.
Administrators can define permissions and assign them to users using the RBAC objects, such as rules, roles, and bindings. To understand how authorization works in OpenShift Container Platform, see Evaluating authorization.
You can also control access to an OpenShift Container Platform cluster through projects and namespaces.
Along with controlling user access to a cluster, you can also control the actions a pod can perform and the resources it can access using security context constraints (SCCs).
You can manage authorization for OpenShift Container Platform through the following tasks:
- Viewing local and cluster roles and bindings.
- Creating a local role and assigning it to a user or group.
- Creating a cluster role and assigning it to a user or group: OpenShift Container Platform includes a set of default cluster roles. You can create additional cluster roles and add them to a user or group.
Creating a cluster-admin user: By default, your cluster has only one cluster administrator called
kubeadmin. You can create another cluster administrator. Before creating a cluster administrator, ensure that you have configured an identity provider.注意After creating the cluster admin user, delete the existing kubeadmin user to improve cluster security.
- Creating service accounts: Service accounts provide a flexible way to control API access without sharing a regular user’s credentials. A user can create and use a service account in applications and also as an OAuth client.
- Scoping tokens: A scoped token is a token that identifies as a specific user who can perform only specific operations. You can create scoped tokens to delegate some of your permissions to another user or a service account.
- Syncing LDAP groups: You can manage user groups in one place by syncing the groups stored in an LDAP server with the OpenShift Container Platform user groups.
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