// Module included in the following assemblies:
//
// * authentication/using-rbac.adoc
// * post_installation_configuration/preparing-for-users.adoc

:_mod-docs-content-type: PROCEDURE
[id="adding-roles_{context}"]
= Adding roles to users

You can use  the `oc adm` administrator CLI to manage the roles and bindings.

Binding, or adding, a role to users or groups gives the user or group the access
that is granted by the role. You can add and remove roles to and from users and
groups using `oc adm policy` commands.

You can bind any of the default cluster roles to local users or groups in your
project.

.Procedure

. Add a role to a user in a specific project:
+
[source,terminal]
----
$ oc adm policy add-role-to-user <role> <user> -n <project>
----
+
For example, you can add the `admin` role to the `alice` user in `joe` project
by running:
+
[source,terminal]
----
$ oc adm policy add-role-to-user admin alice -n joe
----
+
[TIP]
====
You can alternatively apply the following YAML to add the role to the user:

[source,yaml]
----
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: admin-0
  namespace: joe
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: admin
subjects:
- apiGroup: rbac.authorization.k8s.io
  kind: User
  name: alice
----
====

. View the local role bindings and verify the addition in the output:
+
[source,terminal]
----
$ oc describe rolebinding.rbac -n <project>
----
+
For example, to view the local role bindings for the `joe` project:
+
[source,terminal]
----
$ oc describe rolebinding.rbac -n joe
----
+
.Example output
[source,terminal]
----

Name:         admin
Labels:       <none>
Annotations:  <none>
Role:
  Kind:  ClusterRole
  Name:  admin
Subjects:
  Kind  Name        Namespace
  ----  ----        ---------
  User  kube:admin


Name:         admin-0
Labels:       <none>
Annotations:  <none>
Role:
  Kind:  ClusterRole
  Name:  admin
Subjects:
  Kind  Name   Namespace
  ----  ----   ---------
  User  alice <1>


Name:         system:deployers
Labels:       <none>
Annotations:  openshift.io/description:
                Allows deploymentconfigs in this namespace to rollout pods in
                this namespace.  It is auto-managed by a controller; remove
                subjects to disa...
Role:
  Kind:  ClusterRole
  Name:  system:deployer
Subjects:
  Kind            Name      Namespace
  ----            ----      ---------
  ServiceAccount  deployer  joe


Name:         system:image-builders
Labels:       <none>
Annotations:  openshift.io/description:
                Allows builds in this namespace to push images to this
                namespace.  It is auto-managed by a controller; remove subjects
                to disable.
Role:
  Kind:  ClusterRole
  Name:  system:image-builder
Subjects:
  Kind            Name     Namespace
  ----            ----     ---------
  ServiceAccount  builder  joe


Name:         system:image-pullers
Labels:       <none>
Annotations:  openshift.io/description:
                Allows all pods in this namespace to pull images from this
                namespace.  It is auto-managed by a controller; remove subjects
                to disable.
Role:
  Kind:  ClusterRole
  Name:  system:image-puller
Subjects:
  Kind   Name                                Namespace
  ----   ----                                ---------
  Group  system:serviceaccounts:joe
----
<1> The `alice` user has been added to the `admins` `RoleBinding`.
