Request a change to Puppet using the service catalog A user can request a change to a Puppet node through the service catalog. Changes to nodes through the service catalog require the same change request and approvals as changes made through the CI form. Before you beginRole required: puppet_user or puppet_admin Procedure Navigate to Self-Service > Service Catalog. Click Software. Click Modify computer configuration. Select a Computer to modify. Only computers Assigned to the requesting user can be selected. Select Puppet for the Configuration automation provider. Select the Node definition to apply to the selected computer. Click Order Now.