Add overcloud options for SSL RabbitMQ connections

Adds configuration options for Rabbit port and use_ssl settings using a shared
RabbitMQ parameter.

Change-Id: I7b7613cb60b9095ba5665c335c496fea4514391a

overcloud-source.yaml

@@ -334,6 +334,16 @@ parameters:
     default: guest
     description: The username for RabbitMQ
     type: string
+  RabbitClientUseSSL:
+    default: false
+    description: >
+        Rabbit client subscriber parameter to specify
+        an SSL connection to the RabbitMQ host.
+    type: string
+  RabbitClientPort:
+    default: 5672
+    description: Set rabbit subscriber port, change this if using SSL
+    type: number
   SnmpdReadonlyUserName:
     default: ro_snmp_user
     description: The user name for SNMPd with readonly rights running on all Overcloud nodes
@@ -646,6 +656,8 @@ resources:
             get_attr:
             - RabbitCookie
             - value
+          rabbit_client_use_ssl: {get_param: RabbitClientUseSSL}
+          rabbit_port: {get_param: RabbitClientPort}
         ntp:
           servers:
               - {server: {get_param: NtpServer}, fudge: "stratum 0"}