Refactoring + final touches

ansible/roles/linstor_cluster/templates/linstor-client.conf.j2

@@ -1,3 +1,5 @@
 [global]
-# Ansible dynamically grabs all hosts in the 'proxmox' group and joins them with commas
-controllers={{ groups['proxmox'] | join(',') }}
+# Controllers list uses private IPs of all nodes (tries each in order).
+# After linstor_ha setup, the VIP becomes the active controller endpoint.
+# The drbd-reactor automatically manages controller failover via the VIP.
+controllers={% for host in groups['proxmox'] %}{{ hostvars[host]['priv_ip'] | default(hostvars[host]['ansible_host']) }}{% if not loop.last %},{% endif %}{% endfor %}