Update omnia.yml

Signed-off-by: abhishek-sa1 <abhishek.sa3@dell.com>

omnia.yml

@@ -19,7 +19,15 @@
   gather_facts: no
   roles:
     - cluster_validation
-    
+
+- name: Validate hostname
+  hosts: manager, login_node
+  gather_facts: false
+  any_errors_fatal: true
+  roles:
+    - hostname_validation
+  tags: freeipa
+
 - name: Validate nfs_node config
   hosts: nfs_node
   gather_facts: false
@@ -223,4 +231,4 @@
 
 - name: Passwordless SSH between manager and compute nodes
   include: control_plane/tools/passwordless_ssh.yml
-  when: hostvars['127.0.0.1']['control_plane_status']
+  when: hostvars['127.0.0.1']['control_plane_status']