Implement mongo_node_ips hiera key

We need a list of hosts where MongoDB is supposed to run (as a list of
IP addresses, not names) to implement MongoDB support in overcloud.

Change-Id: I4b80f13be7e50630314d0642fa32b7763b6a2921

all-nodes-config.yaml

@@ -6,6 +6,8 @@ parameters:
     type: comma_delimited_list
   controller_hosts:
     type: comma_delimited_list
+  controller_ips:
+    type: comma_delimited_list
   block_storage_hosts:
     type: comma_delimited_list
   object_storage_hosts:

overcloud-without-mergepy.yaml

@@ -695,6 +695,7 @@ resources:
     properties:
       compute_hosts: {get_attr: [Compute, hosts_entry]}
       controller_hosts: {get_attr: [Controller, hosts_entry]}
+      controller_ips: {get_attr: [Controller, ip_address]}
       block_storage_hosts: {get_attr: [BlockStorage, hosts_entry]}
       object_storage_hosts: {get_attr: [ObjectStorage, hosts_entry]}
       ceph_storage_hosts: {get_attr: [CephStorage, hosts_entry]}

puppet/all-nodes-config.yaml

@@ -6,6 +6,8 @@ parameters:
     type: comma_delimited_list
   controller_hosts:
     type: comma_delimited_list
+  controller_ips:
+    type: comma_delimited_list
   block_storage_hosts:
     type: comma_delimited_list
   object_storage_hosts:
@@ -52,6 +54,10 @@ resources:
                   list_join:
                   - ','
                   - {get_param: controller_names}
+                mongo_node_ips:
+                  list_join:
+                  - ','
+                  - {get_param: controller_ips}
 
 outputs:
   config_id: