[FLOW3-general] How to secure a controller?

[Qbus | Axel Wüstemann]

Hello,

I simply want to redirect from the standard controller to the login 
controller if I'm not yet logged in. How to achive that? Or more 
generaly: How to secure a controller?

What I did:

1. I made the appropriate settings

     security:
       authentication:
         providers:
           DefaultProvider:
             provider: PersistedUsernamePasswordProvider
             requestPatterns:
               controllerObjectName: QBUS\BestDesQ\Controller\.*
             entryPoint: 'WebRedirect'
             entryPointOptions:
               uri: login

2. I bult a policy

roles:
   Administrator: []

If I call my standard controller by http:://bestdesq it shows the index 
action. Instead I would exepect it redirects to http:://bestdesq/login

What code I have probably additional add to my controller(s)?

Thank you
Axel