Support IPv6 addresses in Ceph RGW object storage configuration

Add proper IPv6 URL formatting for Swift endpoints when configuring
Ceph RGW as the object storage backend. The ipwrap filter ensures
IPv6 addresses are properly enclosed in brackets while leaving
IPv4 addresses unchanged, preventing URL parsing errors.

Also adds validation to ensure ceph_rgw_virtual_ips_list is not
empty before attempting to use it, providing clear error messaging
for configuration issues.

Author: Manoj Katari

tests/roles/ceph_migrate/tasks/configure_object.yaml

@@ -61,13 +61,25 @@
         - {os_command: 'role', os_command_object: 'swiftoperator'}
         - {os_command: 'project', os_command_object: 'service'}
 
+    # Validate that ceph_rgw_virtual_ips_list is not empty
+    - name: Validate Ceph RGW IP list is not empty
+      ansible.builtin.fail:
+        msg: "ceph_rgw_virtual_ips_list is empty or undefined. Please ensure Ceph RGW virtual IPs are configured."
+      when:
+        - ceph_rgw_virtual_ips_list is not defined or ceph_rgw_virtual_ips_list | length == 0
+
+    # This task will wrap the ip with [] in case of ipv6, for ipv4 ip is used as it is.
+    - name: Extract IP and wrap it in case of IPV6 url
+      ansible.builtin.set_fact:
+        ceph_rgw_url: "{{ (ceph_rgw_virtual_ips_list[0] | ansible.utils.ipaddr('address')) | ansible.utils.ipwrap }}"
+
     - name: Configure swift endpoints to use rgw
       ansible.builtin.shell: |
         {{ shell_header }}
         alias openstack="oc exec -t openstackclient -- openstack"
 
         ${BASH_ALIASES[openstack]} role add --user {{ all_uuids.results.0.stdout }} --project {{ all_uuids.results.7.stdout }} {{ all_uuids.results.2.stdout }}
         ${BASH_ALIASES[openstack]} role add --user {{ all_uuids.results.0.stdout }} --project {{ all_uuids.results.7.stdout }} {{ all_uuids.results.3.stdout }}
-        ${BASH_ALIASES[openstack]} endpoint create --region regionOne {{ all_uuids.results.1.stdout }} public http://{{ ceph_rgw_virtual_ips_list[0] | ansible.utils.ipaddr('address') }}:8080/swift/v1/AUTH_%\(tenant_id\)s
-        ${BASH_ALIASES[openstack]} endpoint create --region regionOne {{ all_uuids.results.1.stdout }} internal http://{{ ceph_rgw_virtual_ips_list[0] | ansible.utils.ipaddr('address') }}:8080/swift/v1/AUTH_%\(tenant_id\)s
+        ${BASH_ALIASES[openstack]} endpoint create --region regionOne {{ all_uuids.results.1.stdout }} public http://{{ ceph_rgw_url }}:8080/swift/v1/AUTH_%\(tenant_id\)s
+        ${BASH_ALIASES[openstack]} endpoint create --region regionOne {{ all_uuids.results.1.stdout }} internal http://{{ ceph_rgw_url }}:8080/swift/v1/AUTH_%\(tenant_id\)s
         ${BASH_ALIASES[openstack]} role add --project {{ all_uuids.results.4.stdout }} --user {{ all_uuids.results.5.stdout }} {{ all_uuids.results.6.stdout }}