Add possibility to override `role` via underlay.hot
Add possibility to use different roles for nodes from MultipleInstance.
Add possibility to use several roles for one node (for the future)

Change-Id: I7e4e67dace4dc6e2fb3426cad8ddaac9cb5fb00b
diff --git a/tcp_tests/templates/heat-cicd-k8s-contrail41-sl/underlay.hot b/tcp_tests/templates/heat-cicd-k8s-contrail41-sl/underlay.hot
index 4f550a7..ab909a5 100644
--- a/tcp_tests/templates/heat-cicd-k8s-contrail41-sl/underlay.hot
+++ b/tcp_tests/templates/heat-cicd-k8s-contrail41-sl/underlay.hot
@@ -87,6 +87,7 @@
       instance01_name: ctl01
       instance02_name: ctl02
       instance03_name: ctl03
+      instance01_role: k8s_controller
       instance_flavor: {get_param: ctl_flavor}
       network: { get_attr: [networks, network] }
       underlay_userdata: { get_file: ./underlay-userdata.yaml }