ceph_orch_apply: fix yaml error when multiple rgw deployed

ceph orch ls rgw --format=yaml returns multiple documents
when multiple rgw are installed, this was not handled
correctly.

Signed-off-by: Teoman ONAY <tonay@ibm.com>
(cherry picked from commit 823700bc1b)

infrastructure-playbooks/cephadm-adopt.yml

@@ -1025,7 +1025,7 @@
             hosts:
               - {{ ansible_facts['nodename'] }}
           {% if rgw_subnet is defined %}
-          networks: "{{ rgw_subnet }}"
+          networks: "{{ radosgw_address_block }}"
           {% endif %}
           spec:
             rgw_frontend_port: {{ radosgw_frontend_port }}

library/ceph_orch_apply.py

@@ -82,7 +82,12 @@ def retrieve_current_spec(module: AnsibleModule, expected_spec: Dict) -> Dict:
     """ retrieve current config of the service """
     service: str = expected_spec["service_type"]
     cmd = build_base_cmd_orch(module)
-    cmd.extend(['ls', service, '--format=yaml'])
+    cmd.extend(['ls', service])
+    if 'service_name' in expected_spec:
+        cmd.extend([expected_spec["service_name"]])
+    else:
+        cmd.extend([expected_spec["service_type"] + "." + expected_spec["service_id"]])
+    cmd.extend(['--format=yaml'])
     out = module.run_command(cmd)
     if isinstance(out, str):
         # if there is no existing service, cephadm returns the string 'No services reported'