Example with mandatory variables not filled in

---                                                                             
rougail:                                                                        
  variable2: a                                                                  

Example with all modifiable variables

---                                                                             
rougail:                                                                        
  variable1:                                                                    
    - a                                                                         
    - b                                                                         
    - c                                                                         
  variable2: a