Solved multiple bugs like networking, variables etc. which occured on veen.world server

roles/docker-mailu/templates/env.j2

@@ -12,7 +12,7 @@
 LD_PRELOAD=/usr/lib/libhardened_malloc.so 
 
 # Set to a randomly generated 16 bytes string
-SECRET_KEY={{applications.mailu.secret_key}}
+SECRET_KEY={{applications.mailu.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}}
@@ -145,7 +145,7 @@ LOG_LEVEL=WARNING
 SQLALCHEMY_DATABASE_URI_ROUNDCUBE=mysql://{{database_username}}:{{database_password}}@{{database_host}}/{{database_name}}?collation=utf8mb4_unicode_ci
 SQLALCHEMY_DATABASE_URI=mysql+mysqlconnector://{{database_username}}:{{database_password}}@{{database_host}}/{{database_name}}?collation=utf8mb4_unicode_ci
 
-API_TOKEN={{applications.mailu.api_token}}
+API_TOKEN={{applications.mailu.credentials.api_token}}
 
 # Activated https://mailu.io/master/configuration.html#advanced-settings
 AUTH_REQUIRE_TOKENS=True

roles/docker-mailu/vars/main.yml

@@ -1,5 +1,5 @@
 application_id:               "mailu"
-database_password:  	        "{{applications.mailu.database_password}}"
+database_password:  	        "{{applications.mailu.credentials.database_password}}"
 database_type:                "mariadb"
 cert_mount_directory:         "{{docker_compose.directories.volumes}}certs/"
 enable_wildcard_certificate:  false