add routing and DNS configuration in salt-master

Ensure ens3 is set up and default gateway is set,
also that nameserver is specified.

PROD-18280

Change-Id: Ic9afcd85abf2e5f5704e08dd50acb4cf368fd308
diff --git a/classes/cluster/sl-os-ovs/infra/init.yml b/classes/cluster/sl-os-ovs/infra/init.yml
index 3722558..eeed3a6 100644
--- a/classes/cluster/sl-os-ovs/infra/init.yml
+++ b/classes/cluster/sl-os-ovs/infra/init.yml
@@ -6,6 +6,7 @@
     cluster_name: sl-os-ovs
     infra_config_hostname: cfg01
     infra_config_deploy_address: 192.168.10.90
+    infra_config_gateway_address: 192.168.10.1
     infra_config_address: 172.16.10.100
   linux:
     network: