Keywords: security | Jenkins | authentication | role strategy | plugin
Abstract: This article discusses the limitation of group support in Jenkins' built-in user database and introduces the Role Strategy plugin as an effective alternative for managing user permissions. Particularly when LDAP integration is not feasible, this plugin allows defining roles and assigning project-level permissions, offering a flexible security strategy.
Introduction
In Jenkins, managing user permissions is a core responsibility for security. When using the “Jenkins's own user database” security realm, users often encounter issues with creating groups and adding users, especially under the “Project-based Matrix Authorization Strategy”.
Group Support Limitation in Built-in User Database
According to Jenkins developer Kohsuke Kawaguchi's statement in 2009, the built-in user database does not support groups. This limitation is primarily evident as group support is only available when integrating with LDAP or Active Directory, while using solutions like OpenID may pose configuration issues. Therefore, users need to find other methods to manage permissions to avoid problems when changing hostnames or ports.
Role Strategy Plugin as a Solution
To fully leverage the Role Strategy plugin, it provides a flexible permission management mechanism. This plugin allows defining multiple roles, such as global roles and project roles, and assigning corresponding permissions. For example, users can configure it via the “<code>Role-based Authorization Strategy</code>” plugin to set permissions at the project-specific level. This approach does not rely on groups, thus enabling effective operation within the built-in database.
Installation and Configuration Guide
The steps for installing the Role Strategy plugin include: first, go to Jenkins' Manage Plugins page, search for “Role Strategy” and install it. After installation, in the security settings, switch the authorization strategy to “Role-based Strategy”. Then, roles and permissions can be defined through the interface provided by the <code>/role-strategy</code> version and assigned to users. For instance, create a role named “developer” and grant it access permissions to certain projects. This process can be implemented via the Jenkins UI or REST API.
Conclusion
In summary, although Jenkins' built-in user database lacks group support, the Role Strategy plugin offers a flexible alternative. It allows users to manage permissions in a role-based manner without relying on LDAP, enhancing security and maintainability. For users dealing with complex permission scenarios, this plugin is an important tool.