Rework networking setup for external routers

External routers (vmx/vsrx) are now connected with accessible router
by 2 networks:
 - external control network needed to provide access to
external router via floating ip address.
 - external data network is used for mpls/gre tunnels and other
traffic.
Also added separate network for MetalLb, and is routed via infra
router.

Related-Prod: https://mirantis.jira.com/browse/PRODX-48892
Change-Id: I53d922b3a37f55453b0fc7031f835f50ca2a1a12
diff --git a/de/heat-templates/env/mstr1-wrkr5-cmp2-ntw3.yaml b/de/heat-templates/env/mstr1-wrkr5-cmp2-ntw3.yaml
index caeaa0e..c0b0ba1 100644
--- a/de/heat-templates/env/mstr1-wrkr5-cmp2-ntw3.yaml
+++ b/de/heat-templates/env/mstr1-wrkr5-cmp2-ntw3.yaml
@@ -4,6 +4,7 @@
   "MCP2::NetworkPrvFl": ../fragments/NetworkPrvFl.yaml
   "MCP2::NetworkIronicFlat": ../fragments/NetworkIronicFlat.yaml
   "MCP2::NetworkTun": ../fragments/NetworkTun.yaml
+  "MCP2::NetworkExtSrv": ../fragments/NetworkExtSrv.yaml
   "MCP2::SrvInstances": ../fragments/SrvInstancesVM.yaml
   "MCP2::SrvInstancesCeph": ../fragments/SrvInstancesVMCeph.yaml
   "MCP2::SrvInstancesCephOSD": ../fragments/SrvInstancesVMCephOSD.yaml
@@ -23,13 +24,8 @@
   cluster_public_key: ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCp0evjOaK8c8SKYK4r2+0BN7g+8YSvQ2n8nFgOURCyvkJqOHi1qPGZmuN0CclYVdVuZiXbWw3VxRbSW3EH736VzgY1U0JmoTiSamzLHaWsXvEIW8VCi7boli539QJP0ikJiBaNAgZILyCrVPN+A6mfqtacs1KXdZ0zlMq1BPtFciR1JTCRcVs5vP2Wwz5QtY2jMIh3aiwkePjMTQPcfmh1TkOlxYu5IbQyZ3G1ahA0mNKI9a0dtF282av/F6pwB/N1R1nEZ/9VtcN2I1mf1NW/tTHEEcTzXYo1R/8K9vlqAN8QvvGLZtZduGviNVNoNWvoxaXxDt8CPv2B2NCdQFZp
   tungstenfabric_enabled: true
   vsrx_enabled: true
-  metallb_address_pools: '10.11.12.201-10.11.12.254'
   private_floating_network_cidr: '10.11.12.0/24'
-  private_floating_network_ipam_pool_start: '10.11.12.3'
-  private_floating_network_ipam_pool_end: '10.11.12.70'
   private_floating_network_gateway: '10.11.12.1'
-  control_network_ext_router_ip: '10.10.0.131'
-  tun_network_ext_router_ip: '10.15.0.131'
   private_floating_interface: 'ens4'
   tunnel_interface: 'ens8'
   worker_metadata: {"labels": {"openstack-control-plane":"enabled","local-volume-provisioner": "enabled"}}