This guide provides instructions to manage roles by LDAP/AD group. You can import an LDAP/AD group to Harbor and assign project roles to it. All LDAP/AD users in this LDAP/AD group have assigned roles.
## Prerequisite
1. Harbor's auth_mode is ldap_auth and **[basic LDAP configure paremters](https://github.com/vmware/harbor/blob/master/docs/installation_guide.md#optional-parameters)** are configured.
1. Memberof overlay
This feature requires the LDAP/AD server enabled the feature **memberof overlay**.
With this feature, the LDAP/AD user entity's attribute **memberof** is updated when the group entity's **member** attribute is updated. For example, adding or removing an LDAP/AD user from the LDAP/AD group.
* OpenLDAP -- Refer this **[guide](https://technicalnotes.wordpress.com/2014/04/19/openldap-setup-with-memberof-overlay/)** to enable and verify **memberof overlay**
* Active Directory -- this feature is enabled by default.
Besides **[basic LDAP configure parameters](https://github.com/vmware/harbor/blob/master/docs/installation_guide.md#optional-parameters)** , LDAP group related configure parameters should be configured, they can be configured before or after installation
1. Configure parameters in harbor.cfg before installation
* ldap_group_basedn -- The base DN from which to lookup a group in LDAP/AD, for example: ou=groups,dc=example,dc=com
* ldap_group_filter -- The filter to search LDAP/AD group, for example: objectclass=groupOfNames
* ldap_group_gid -- The attribute used to name an LDAP/AD group, for example: cn
* ldap_group_scope -- The scope to search for LDAP/AD groups. 0-LDAP_SCOPE_BASE, 1-LDAP_SCOPE_ONELEVEL, 2-LDAP_SCOPE_SUBTREE
2. Or Change configure parameter in web console after installation. Go to "Administration" -> "Configuration" -> "Authentication" and change following settings.
- LDAP Group Base DN -- ldap_group_basedn in harbor.cfg
- LDAP Group Filter -- ldap_group_filter in harbor.cfg
- LDAP Group GID -- ldap_group_gid in harbor.cfg
- LDAP Group Scope -- ldap_group_scope in harbor.cfg
- LDAP Groups With Admin Privilege -- Specify an LDAP/AD group DN, all LDAPA/AD users in this group have harbor admin privileges.

## Assign project role to LDAP/AD group
In "Project" -> "Members" -> "+ GROUP".

You can "Add an existing user group to project member" or "Add a group from LDAP to project member".

Once an LDAP group is assigned a project role, log in with an LDAP/AD user in this group, the user should have the privilege of its group role.
If a user is in the LDAP groups with admin privilege (ldap_group_admin_dn), the user should have the same privileges with Harbor admin.
## User privileges and group privileges
If a user has both user-level role and group-level role, only the user level role privileges will be considered.