[jstrachan]

Each environment is in a separate namespaces. You can add/edit/delete the Environments to use whatever namespaces you wish to use.

Promotion is either automatic or manual. By default Staging is automatic and production is manual. You can manually promote any version to any environment whenever you wish: http://jenkins-x.io/developing/promote/

For promotions we're delegating to the git repository for RBAC; so you can setup whatever roles you want for who is allowed to approve promotions & if you need code reviews etc