Example with mandatory variables not filled in

---                                                                             
general1:                                                                       
  leader:                                                                       
    - leader: example                                                           
      follower1: example                                                        
      follower2: example                                                        

Example with all modifiable variables

---                                                                             
general:                                                                        
  mode_conteneur_actif: non                                                     
general1:                                                                       
  leader:                                                                       
    - leader: example                                                           
      follower1: example                                                        
      follower2: example