Subgroups (FREE)

Introduced in GitLab 9.0.

You can organize GitLab groups into subgroups. You can use subgroups to:

Separate internal and external organizations. Because every subgroup can have its own visibility level, you can host groups for different purposes under the same parent group.
Organize large projects. You can use subgroups to give different access to parts of the source code.
Manage people and control visibility. Give a user a different role for each group they're a member of.

Subgroups can:

Belong to one immediate parent group.
Have many subgroups.
Be nested up to 20 levels.
Use runners registered to parent groups:
- Secrets configured for the parent group are available to subgroup jobs.
- Users with the Maintainer role in projects that belong to subgroups can see the details of runners registered to parent groups.

For example:

graph TD
    subgraph "Parent group"
      subgraph "Subgroup A"
        subgraph "Subgroup A1"
          G["Project E"]
        end
        C["Project A"]
        D["Project B"]
        E["Project C"]
      end
      subgraph "Subgroup B"
        F["Project D"]
      end
    end

Create a subgroup

Prerequisites:

You must either:
- Have at least the Maintainer role for a group to create subgroups for it.
- Have the role determined by a setting. These users can create subgroups even if group creation is disabled by an Administrator in the user's settings.

NOTE: You cannot host a GitLab Pages subgroup website with a top-level domain name. For example, subgroupname.example.io.

To create a subgroup:

On the top bar, select Menu > Groups and find and select the parent group to add a subgroup to.
On the parent group's overview page, in the top right, select New subgroup.
Select Create group.
Fill in the fields. View a list of reserved names that cannot be used as group names.
Select Create group.

Change who can create subgroups

To create a subgroup, you must have at least the Maintainer role on the group, depending on the group's setting. By default:

In GitLab 12.2 or later, users with at least the Maintainer role can create subgroups.
In GitLab 12.1 or earlier, only users with the Owner role can create subgroups.

To change who can create subgroups on a group:

As a user with the Owner role on the group:
1. On the top bar, select Menu > Groups and find the group.
2. On the left sidebar, select Settings > General.
3. Expand Permissions and group features.
4. Select a role from the Allowed to create subgroups dropdown.
As an administrator:
1. On the top bar, select Menu > Admin.
2. On the left sidebar, select Overview > Groups.
3. Select the group, and select Edit.
4. Select a role from the Allowed to create subgroups dropdown.

For more information, view the permissions table.

Subgroup membership

NOTE: There is a bug that causes some pages in the parent group to be accessible by subgroup members. For more details, see this issue.

When you add a member to a group, that member is also added to all subgroups. The user's permissions are inherited from the group's parent.

Subgroup members can:

Be direct members of the subgroup.
Inherit membership of the subgroup from the subgroup's parent group.
Be a member of a group that was shared with the subgroup's top-level group.

flowchart RL
  subgraph Group A
    A(Direct member)
    B{{Shared member}}
    subgraph Subgroup A
      H(1. Direct member)
      C{{2. Inherited member}}
      D{{Inherited member}}
      E{{3. Shared member}}
    end
    A-->|Direct membership of Group A\nInherited membership of Subgroup A|C
  end
  subgraph Group C
    G(Direct member)
  end
  subgraph Group B
    F(Direct member)
  end
  F-->|Group B\nshared with\nGroup A|B
  B-->|Inherited membership of Subgroup A|D
  G-->|Group C shared with Subgroup A|E

Group permissions for a member can be changed only by:

Users with the Owner role on the group.
Changing the configuration of the group the member was added to.

Determine membership inheritance

To see if a member has inherited the permissions from a parent group:

On the top bar, select Menu > Groups and find the group.
Select Group information > Members.

Members list for an example subgroup Four:

In the screenshot above:

Five members have access to group Four.
User 0 has the Reporter role on group Four, and has inherited their permissions from group One:
- User 0 is a direct member of group One.
- Group One is above group Four in the hierarchy.
User 1 has the Developer role on group Four and inherited their permissions from group Two:
- User 0 is a direct member of group Two, which is a subgroup of group One.
- Groups One / Two are above group Four in the hierarchy.
User 2 has the Developer role on group Four and has inherited their permissions from group Three:
- User 0 is a direct member of group Three, which is a subgroup of group Two. Group Two is a subgroup of group One.
- Groups One / Two / Three are above group Four the hierarchy.
User 3 is a direct member of group Four. This means they get their Maintainer role directly from group Four.
Administrator has the Owner role on group Four and is a member of all subgroups. For that reason, as with User 3, the Source column indicates they are a direct member.

Members can be filtered by inherited or direct membership.

Override ancestor group membership

Users with the Owner role on a subgroup can add members to it.

You can't give a user a role on a subgroup that's lower than the roles they have on ancestor groups. To override a user's role on an ancestor group, add the user to the subgroup again with a higher role. For example:

If User 1 is added to group Two with the Developer role, they inherit that role in every subgroup of group Two.
To give User 1 the Maintainer role on group Four (under One / Two / Three), add them again to group Four with the Maintainer role.
If User 1 is removed from group Four, their role falls back to their role on group Two. They have the Developer role on group Four again.

Mention subgroups

Mentioning subgroups (@<subgroup_name>) in issues, commits, and merge requests notifies all members of that group. Mentioning works the same as for projects and groups, and you can choose the group of people to be notified.