Added get_domain function

roles/docker-listmonk/tasks/main.yml

@@ -16,7 +16,7 @@
   include_role:
     name: nginx-domain-setup
   vars:
-    domain:   "{{ domains[application_id] }}"
+    domain:   "{{ domains | get_domain(application_id) }}"
     http_port:   "{{ ports.localhost.http[application_id] }}"
 
 - name: add config.toml

roles/docker-listmonk/vars/main.yml

@@ -3,7 +3,7 @@ database_type:      "postgres"
 
 listmonk_settings:
   - key: "app.root_url"
-    value: '"{{ web_protocol }}://{{ domains[application_id] }}"'
+    value: '"{{ web_protocol }}://{{ domains | get_domain(application_id) }}"'
 
   - key: "app.notify_emails"
     value: "{{ [ users.administrator.email ] | to_json }}"