Move node labeling and net configuration to bootstrap

The patch moves node labeling and network interface along with
bridge, veth pairs from pipelines to heat bootstrap script. Net
configuration is set by netplan therefore it is made in matter
of permanent config.

Related-PROD: PRODX-2361
Change-Id: I12a5e839ad453b73d6f505859ef80838289a4184
diff --git a/de/heat-templates/top.yaml b/de/heat-templates/top.yaml
index f6a5e6f..b0ce896 100644
--- a/de/heat-templates/top.yaml
+++ b/de/heat-templates/top.yaml
@@ -195,3 +195,6 @@
   gtws_ips:
     description: Private IP addresses of the deployed gtw instances
     value: { get_attr: [gtws, server_public_ip] }
+  worker_private_floating_ips:
+    description: IPs might be used as gateway
+    value: { get_attr: [workers, server_private_floating_ip] }