dashboad: rgw frontends entries in ceph.conf are incorrect

There was multiple rgw frontends entries while there was just one
rgw instance on each host. The other entries were the details from
the other rgw hosts in the cluster

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2232282

Signed-off-by: Teoman ONAY <tonay@ibm.com>

roles/ceph-facts/tasks/set_radosgw_address.yml

@@ -63,16 +63,22 @@
       run_once: true
       when: ip_version == 'ipv6'
 
-- name: set_fact rgw_instances without rgw multisite
+- name: rgw_instances without rgw multisite
+  when:
+    - ceph_dashboard_call_item is defined or
+      inventory_hostname in groups.get(rgw_group_name, [])
+    - not rgw_multisite | bool
+  block:
+    - name: reset rgw_instances (workaround)
+      set_fact:
+        rgw_instances: []
+
+    - name: set_fact rgw_instances without rgw multisite
       set_fact:
         rgw_instances: "{{ rgw_instances|default([]) | union([{'instance_name': 'rgw' + item|string, 'radosgw_address': hostvars[ceph_dashboard_call_item | default(inventory_hostname)]['_radosgw_address'], 'radosgw_frontend_port': radosgw_frontend_port|int + item|int }]) }}"
       with_sequence: start=0 end={{ radosgw_num_instances|int - 1 }}
       delegate_to: "{{ ceph_dashboard_call_item if ceph_dashboard_call_item is defined else inventory_hostname }}"
       delegate_facts: "{{ true if ceph_dashboard_call_item is defined else false }}"
-  when:
-    - ceph_dashboard_call_item is defined or
-      inventory_hostname in groups.get(rgw_group_name, [])
-    - not rgw_multisite | bool
 
 - name: set_fact is_rgw_instances_defined
   set_fact:
@@ -81,17 +87,23 @@
     - inventory_hostname in groups.get(rgw_group_name, [])
     - rgw_multisite | bool
 
-- name: set_fact rgw_instances with rgw multisite
+- name: rgw_instances with rgw multisite
-  set_fact:
-    rgw_instances: "{{ rgw_instances|default([]) | union([{ 'instance_name': 'rgw' + item | string, 'radosgw_address': hostvars[ceph_dashboard_call_item | default(inventory_hostname)]['_radosgw_address'], 'radosgw_frontend_port': radosgw_frontend_port | int + item|int, 'rgw_realm': rgw_realm | string, 'rgw_zonegroup': rgw_zonegroup | string, 'rgw_zone': rgw_zone | string, 'system_access_key': system_access_key, 'system_secret_key': system_secret_key, 'rgw_zone_user': rgw_zone_user, 'rgw_zone_user_display_name': rgw_zone_user_display_name, 'endpoint': (rgw_pull_proto + '://' + rgw_pullhost + ':' + rgw_pull_port | string) if not rgw_zonemaster | bool and rgw_zonesecondary | bool else omit }]) }}"
-  with_sequence: start=0 end={{ radosgw_num_instances|int - 1 }}
-  delegate_to: "{{ ceph_dashboard_call_item if ceph_dashboard_call_item is defined else inventory_hostname }}"
-  delegate_facts: "{{ true if ceph_dashboard_call_item is defined else false }}"
   when:
     - ceph_dashboard_call_item is defined or
       inventory_hostname in groups.get(rgw_group_name, [])
     - rgw_multisite | bool
     - not is_rgw_instances_defined | default(False) | bool
+  block:
+    - name: reset rgw_instances (workaround)
+      set_fact:
+        rgw_instances: []
+
+    - name: set_fact rgw_instances with rgw multisite
+      set_fact:
+        rgw_instances: "{{ rgw_instances|default([]) | union([{ 'instance_name': 'rgw' + item | string, 'radosgw_address': hostvars[ceph_dashboard_call_item | default(inventory_hostname)]['_radosgw_address'], 'radosgw_frontend_port': radosgw_frontend_port | int + item|int, 'rgw_realm': rgw_realm | string, 'rgw_zonegroup': rgw_zonegroup | string, 'rgw_zone': rgw_zone | string, 'system_access_key': system_access_key, 'system_secret_key': system_secret_key, 'rgw_zone_user': rgw_zone_user, 'rgw_zone_user_display_name': rgw_zone_user_display_name, 'endpoint': (rgw_pull_proto + '://' + rgw_pullhost + ':' + rgw_pull_port | string) if not rgw_zonemaster | bool and rgw_zonesecondary | bool else omit }]) }}"
+      with_sequence: start=0 end={{ radosgw_num_instances|int - 1 }}
+      delegate_to: "{{ ceph_dashboard_call_item if ceph_dashboard_call_item is defined else inventory_hostname }}"
+      delegate_facts: "{{ true if ceph_dashboard_call_item is defined else false }}"
 
 - name: set_fact rgw_instances_host
   set_fact: