Only run this role for webserver_nextcloud hosts

tasks/main.yml

@@ -101,4 +101,4 @@
     - name: Install tesseract
       include_tasks: tesseract.yml
 
-  when: not excluded_roles or "nextcloud" not in excluded_roles
+  when: groups.webserver_nextcloud is defined and inventory_hostname in groups.webserver_nextcloud and not excluded_roles or "nextcloud" not in excluded_roles