Parameterized linux_system_codename

Change-Id: Ic527bfa74b4caf7e0bb5d157bfae024f2cf53111
diff --git a/reclass/storage/system/openstack_telemetry_cluster.yml b/reclass/storage/system/openstack_telemetry_cluster.yml
index d184fc9..9dc6457 100644
--- a/reclass/storage/system/openstack_telemetry_cluster.yml
+++ b/reclass/storage/system/openstack_telemetry_cluster.yml
@@ -3,6 +3,7 @@
     openstack_telemetry_node01_hostname: mdb01
     openstack_telemetry_node02_hostname: mdb02
     openstack_telemetry_node03_hostname: mdb03
+    openstack_telemetry_system_codename: trusty
   reclass:
     storage:
       node:
@@ -13,7 +14,7 @@
           - cluster.${_param:cluster_name}.openstack.telemetry
           params:
             salt_master_host: ${_param:reclass_config_master}
-            linux_system_codename: trusty
+            linux_system_codename: ${_param:openstack_telemetry_system_codename}
             single_address: ${_param:openstack_telemetry_node01_address}
             keepalived_vip_priority: 103
         openstack_telemetry_node02:
@@ -23,7 +24,7 @@
           - cluster.${_param:cluster_name}.openstack.telemetry
           params:
             salt_master_host: ${_param:reclass_config_master}
-            linux_system_codename: trusty
+            linux_system_codename: ${_param:openstack_telemetry_system_codename}
             single_address: ${_param:openstack_telemetry_node02_address}
             keepalived_vip_priority: 102
         openstack_telemetry_node03:
@@ -33,6 +34,6 @@
           - cluster.${_param:cluster_name}.openstack.telemetry
           params:
             salt_master_host: ${_param:reclass_config_master}
-            linux_system_codename: trusty
+            linux_system_codename: ${_param:openstack_telemetry_system_codename}
             single_address: ${_param:openstack_telemetry_node03_address}
             keepalived_vip_priority: 101