Added get_domain function

roles/nginx-serve-files/tasks/main.yml

@@ -3,11 +3,11 @@
   include_role:
     name: nginx-https-get-cert-modify-all
   vars:
-    domain:     "{{domains[application_id]}}"
+    domain:     "{{domains | get_domain(application_id)}}"
     http_port:  "{{ ports.localhost.http[application_id] }}"
 
-- name: "generate {{domains[application_id]}}.conf"
+- name: "generate {{domains | get_domain(application_id)}}.conf"
   template: 
     src:  "nginx.conf.j2" 
-    dest: "{{nginx.directories.http.servers}}{{domains[application_id]}}.conf"
+    dest: "{{nginx.directories.http.servers}}{{domains | get_domain(application_id)}}.conf"
   notify: restart nginx

roles/nginx-serve-files/templates/nginx.conf.j2

@@ -1,6 +1,6 @@
 server
 {
-  server_name {{domains[application_id]}};
+  server_name {{domains | get_domain(application_id)}};
   
   {% include 'roles/letsencrypt/templates/ssl_header.j2' %}
 

roles/nginx-serve-files/vars/main.yml

@@ -1,2 +1,2 @@
 application_id: "file_server"
-domain:         "{{ domains[application_id] }}"
+domain:         "{{ domains | get_domain(application_id) }}"