Adapted roles to new architecture

roles/web-app-mailu/templates/env.j2

@@ -11,13 +11,13 @@
 LD_PRELOAD=/usr/lib/libhardened_malloc.so 
 
 # Set to a randomly generated 16 bytes string
-SECRET_KEY={{applications.mailu.credentials.secret_key}}
+SECRET_KEY={{applications | get_app_conf(application_id,'credentials.secret_key')}}
 
 # Subnet of the docker network. This should not conflict with any networks to which your system is connected. (Internal and external!)
-SUBNET={{networks.local.mailu.subnet}}
+SUBNET={{networks.local['web-app-mailu'].subnet}}
 
 # Main mail domain
-DOMAIN={{applications.mailu.domain}}
+DOMAIN={{ applications | get_app_conf(application_id,'domain') }}
 
 # Hostnames for this server, separated with comas
 HOSTNAMES={{domains | get_domain(application_id)}}
@@ -151,7 +151,7 @@ SQLALCHEMY_DATABASE_URI=mysql+mysqlconnector://{{database_username}}:{{database_
 API=true
 WEB_API=/api
 # Configures the authentication token. The minimum length is 3 characters. This token must be passed as request header to the API as authentication token. This is a mandatory setting for using the RESTful API.
-API_TOKEN={{applications.mailu.credentials.api_token}}
+API_TOKEN={{ applications | get_app_conf(application_id, 'credentials.api_token')}}
 
 
 # Activated https://mailu.io/master/configuration.html#advanced-settings