IDM server registration is fixed to one server only

Heat IdMServer can not convey multiple values of IPA servers,
and it is set to a string, limited to one IPA server only.

Since IPA ansible playbook can accept multiple values of servers,
IdMServer needs update to be changed from string to array.

Closes-Bug: #1955319
Change-Id: I4cc8837b52e6b2356b6bc4436c340b2cb83879fe
(cherry picked from commit 6d142165f1)

deployment/ipa/ipaservices-baremetal-ansible.yaml

@@ -39,11 +39,11 @@ parameters:
                  through DNS and does not have to be set explicitly.
     type: string
   IdMServer:
-    default: ''
+    default: []
     description: FQDN for the FreeIPA server.  If you set this value, IdMDomain
                  also has to be provided.  Typically, this is discovered
                  through DNS and does not have to be set explicitly.
-    type: string
+    type: comma_delimited_list
   IdMNovaKeytab:
     default: 'FILE:/etc/novajoin/krb5.keytab'
     description: keytab for the nova/[host fqdn] user on the FreeIPA server.
@@ -82,7 +82,7 @@ parameters:
 conditions:
   idm_server_provided:
     not:
-      equals: [{get_param: IdMServer}, ""]
+      equals: [{get_param: IdMServer}, []]
 
 outputs:
   role_data:
@@ -115,7 +115,7 @@ outputs:
           environment:
             if:
               - idm_server_provided
-              - IPA_HOST: {get_param: IdMServer}
+              - IPA_HOST: {get_param: [IdMServer, 0]}
                 IPA_USER: "nova/{{ ansible_facts['fqdn'] }}"
                 KRB5_CLIENT_KTNAME: {get_param: IdMNovaKeytab}
               - IPA_USER: "nova/{{ ansible_facts['fqdn'] }}"