Add task to fail if full_domain already exists

service-provider-setup/setup-dns.yml

@@ -6,6 +6,16 @@
     - vars/k8s-vars.yml
 
   tasks:
+    - name: Check if domain exists
+      community.digitalocean.digital_ocean_domain_facts:
+        oauth_token: "{{ do_api_token }}"
+      register: existing_domains
+
+    - name: Fail if domain already exists
+      fail:
+        msg: "Domain {{ full_domain }} already exists."
+      when: full_domain in existing_domains.data | map(attribute='name') | list
+
     - name: Create a domain
       community.digitalocean.digital_ocean_domain:
         state: present