Added get_domain function

roles/docker-friendica/tasks/main.yml

@@ -7,7 +7,7 @@
   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: "copy docker-compose.yml and env file"

roles/docker-friendica/templates/env.j2

@@ -1,8 +1,8 @@
 # The configuration options can be found here: 
 # @see https://hub.docker.com/_/friendica
 
-FRIENDICA_URL= https://{{domains[application_id]}}
-HOSTNAME= {{domains[application_id]}}
+FRIENDICA_URL= https://{{domains | get_domain(application_id)}}
+HOSTNAME= {{domains | get_domain(application_id)}}
 FRIENDICA_NO_VALIDATION={{no_validation | lower}}
       
 # Debugging