Fix dhcp multiple default gateways issue

The system only adds one gateway and if it receives default gateway from
incorrect interface (like control plane primary interface), the instance loses
access to external network.

Fixing by making primary interfaces (control plane) static.

Change-Id: I511f6721c2ecac29eccbdd63160f748c1cc2ee07
diff --git a/classes/cluster/virtual-mcp11-dvr/infra/config.yml b/classes/cluster/virtual-mcp11-dvr/infra/config.yml
index 0e81862..19508f8 100644
--- a/classes/cluster/virtual-mcp11-dvr/infra/config.yml
+++ b/classes/cluster/virtual-mcp11-dvr/infra/config.yml
@@ -41,7 +41,9 @@
         ens4:
           enabled: true
           type: eth
-          proto: dhcp
+          proto: static
+          address: ${_param:single_address}
+          netmask: 255.255.255.0
   nginx:
     server:
       site:
diff --git a/classes/cluster/virtual-mcp11-dvr/openstack/control.yml b/classes/cluster/virtual-mcp11-dvr/openstack/control.yml
index 4082915..efd7374 100644
--- a/classes/cluster/virtual-mcp11-dvr/openstack/control.yml
+++ b/classes/cluster/virtual-mcp11-dvr/openstack/control.yml
@@ -45,7 +45,9 @@
         ens4:
           enabled: true
           type: eth
-          proto: dhcp
+          proto: static
+          address: ${_param:single_address}
+          netmask: 255.255.255.0
   keepalived:
     cluster:
       instance:
diff --git a/classes/cluster/virtual-mcp11-dvr/openstack/dashboard.yml b/classes/cluster/virtual-mcp11-dvr/openstack/dashboard.yml
index 729262e..28c8f01 100644
--- a/classes/cluster/virtual-mcp11-dvr/openstack/dashboard.yml
+++ b/classes/cluster/virtual-mcp11-dvr/openstack/dashboard.yml
@@ -11,4 +11,6 @@
         ens4:
           enabled: true
           type: eth
-          proto: dhcp
+          proto: static
+          address: ${_param:single_address}
+          netmask: 255.255.255.0
diff --git a/classes/cluster/virtual-mcp11-dvr/stacklight/server.yml b/classes/cluster/virtual-mcp11-dvr/stacklight/server.yml
index 88af2c8..579a653 100644
--- a/classes/cluster/virtual-mcp11-dvr/stacklight/server.yml
+++ b/classes/cluster/virtual-mcp11-dvr/stacklight/server.yml
@@ -40,4 +40,6 @@
         ens4:
           enabled: true
           type: eth
-          proto: dhcp
+          proto: static
+          address: ${_param:single_address}
+          netmask: 255.255.255.0