Switch list override to new syntax

Change-Id: If9e4dca1856757a680be53663c07379ba8c66750
diff --git a/classes/cluster/virtual-mcp11-aio/init.yml b/classes/cluster/virtual-mcp11-aio/init.yml
index b419d5b..e79a480 100755
--- a/classes/cluster/virtual-mcp11-aio/init.yml
+++ b/classes/cluster/virtual-mcp11-aio/init.yml
@@ -79,22 +79,22 @@
   nova:
     compute:
       cache:
-        members:
+        ~members:
         - host: ${_param:single_address}
           port: 11211
   cinder:
     volume:
       cache:
-        members:
+        ~members:
         - host: ${_param:single_address}
           port: 11211
   galera:
     master:
-      members:
+      ~members:
       - host: ${_param:single_address}
         port: 4567
   neutron:
     server:
       message_queue:
-        members:
+        ~members:
           - host: ${_param:single_address}
diff --git a/classes/cluster/virtual-mcp11-aio/openstack/init.yml b/classes/cluster/virtual-mcp11-aio/openstack/init.yml
index a463311..bef6471 100755
--- a/classes/cluster/virtual-mcp11-aio/openstack/init.yml
+++ b/classes/cluster/virtual-mcp11-aio/openstack/init.yml
@@ -139,7 +139,6 @@
     glance_image_fedora_location: 'https://artifactory.mcp.mirantis.net/artifactory/test-images/Fedora-Cloud-Base-27-1.6.x86_64.qcow2'
   galera:
     master:
-      members: ~
       innodb_buffer_pool_size: 1024M
       max_connections: 1000
     slave:
@@ -162,7 +161,6 @@
       rpc_state_report_workers: 2
       rpc_workers: 2
       message_queue:
-        members: ~
         port: ${_param:openstack_rabbitmq_port}
         ssl:
           enabled: ${_param:rabbitmq_ssl_enabled}
@@ -185,8 +183,6 @@
         user: neutron
         password: ${_param:keystone_neutron_password}
         tenant: service
-      cache:
-        members: ~
       message_queue:
         port: ${_param:openstack_rabbitmq_port}
         ssl:
@@ -216,8 +212,6 @@
         ssl:
           enabled: ${_param:rabbitmq_ssl_enabled}
     volume:
-      cache:
-        members: ~
       database:
         ssl:
           enabled: ${_param:galera_ssl_enabled}