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28.5. Accessing Composer GUI in Cockpit

Using Cockpit is the recommended way of accessing Composer functionality.


Composer is available as a Technology Preview. See the Technology Preview Features Support Scope for more details.
Customers deploying Composer are encouraged to provide feedback to Red Hat.


  • You must have root access to the system.


  1. Open https://localhost:9090/ in a web browser on the system with Composer.


    Accessing Composer from another system falls under the topic of remote access to Cockpit. For more information, see the Getting Started with Cockpit guide.
  2. Log into the Cockpit with credentials for an user account with sufficient privileges on the system.
  3. On the left, click the Image Builder icon to display the Composer controls.
    The Composer view opens, listing existing blueprints.