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GitLab

Predefined system of user roles

Instance

User types

Each user can be one of the following types:

  • Regular.
  • External - access to groups and projects only if direct member.
  • Internal users - system created.
  • Auditor:
    • No access to projects or groups settings menu.
    • No access to Admin Area.
    • Read-only access to everything else.
  • Administrator - read-write access.

See the permissions page for details on how each user type is used.

Groups and Projects

General permissions

Groups and projects can have the following visibility levels:

  • public (20) - an entity is visible to everyone
  • internal (10) - an entity is visible to authenticated users
  • private (0) - an entity is visible only to the approved members of the entity

By default, subgroups can not have higher visibility levels. For example, if you create a new private group, it cannot include a public subgroup.

The visibility level of a group can be changed only if all subgroups and sub-projects have the same or lower visibility level. For example, a group can be set to internal only if all subgroups and projects are internal or private.

WARNING: If you migrate an existing group to a lower visibility level, that action does not migrate subgroups in the same way. This is a known issue.

Visibility levels can be found in the Gitlab::VisibilityLevel module.

Feature specific permissions

Additionally, the following project features can have different visibility levels:

  • Issues
  • Repository
    • Merge request
    • Forks
    • Pipelines
  • Analytics
  • Requirements
  • Security and Compliance
  • Wiki
  • Snippets
  • Pages
  • Operations
  • Metrics Dashboard

These features can be set to "Everyone with Access" or "Only Project Members". They make sense only for public or internal projects because private projects can be accessed only by project members by default.

Members

Users can be members of multiple groups and projects. The following access levels are available (defined in the Gitlab::Access module):

  • No access (0)
  • Minimal access (5)
  • Guest (10)
  • Reporter (20)
  • Developer (30)
  • Maintainer (40)
  • Owner (50)

If a user is the member of both a project and the project parent groups, the highest permission is the applied access level for the project.

If a user is the member of a project, but not the parent groups, they can still view the groups and their entities (like epics).

Project membership (where the group membership is already taken into account) is stored in the project_authorizations table.

NOTE: In GitLab 14.9 and later, projects in personal namespaces have a maximum role of Owner. Because of a known issue in GitLab 14.8 and earlier, projects in personal namespaces have a maximum role of Maintainer.

Confidential issues

Confidential issues can be accessed only by project members who are at least reporters (they can't be accessed by guests). Additionally they can be accessed by their authors and assignees.

Licensed features

Some features can be accessed only if the user has the correct license plan.

Permission dependencies

Feature policies can be quite complex and consist of multiple rules. Quite often, one permission can be based on another.

Designing good permissions means reusing existing permissions as much as possible and making access to features granular.

In the case of a complex resource, it should be broken into smaller pieces of information and each piece should be granted a different permission.

A good example in this case is the Merge Request widget and the Security reports. Depending on the visibility level of the Pipelines, the Security reports are either visible in the widget or not. So, the Merge Request widget, the Pipelines, and the Security reports, have separate permissions. Moreover, the permissions for the Merge Request widget and the Pipelines are dependencies of the Security reports.

Permission dependencies of Secure features

Secure features have complex permissions since these features are integrated into different features like Merge Requests and CI flow.

Here is a list of some permission dependencies.

Activity level Resource Locations Permission dependency
View License information Dependency list, License Compliance Can view repository
View Dependency information Dependency list, License Compliance Can view repository
View Vulnerabilities information Dependency list Can view security findings
View Black/Whitelisted licenses for the project License Compliance, merge request Can view repository
View Security findings merge request, CI job page, Pipeline security tab Can read the project and CI jobs
View Vulnerability feedback merge request Can read security findings
View Dependency List page Project Can access Dependency information
View License Compliance page Project Can access License information