Add group based on domainname if found

hosts.yml

@@ -137,10 +137,6 @@ sftpbackup:
     mongodb:
     sqldb:
 
-vultr:
-  hosts:
-    atl01.vultr.foo.sh:
-
 fedora:
   children:
     gitearunner:

playbooks/ns.yml

@@ -2,7 +2,7 @@
 - name: Deploy KVM virtual machines
   ansible.builtin.import_playbook: include/deploy-kvm-guest.yml
   vars:
-    myhosts: ns:!vultr
+    myhosts: ns:!atl01.vultr.foo.sh
 
 - name: Configure instance
   hosts: ns

roles/base/tasks/main.yml

@@ -1,4 +1,10 @@
 ---
+- name: Group by domainname
+  ansible.builtin.group_by:
+    key: "{{ inventory_hostname.split('.')[1] }}"
+  changed_when: false
+  when: inventory_hostname | split('.') | length == 4
+
 - name: Setup ansible custom facts
   ansible.builtin.file:
     dest: "{{ item }}"