CORD-396 CORD-383 CORD-362 CORD-309 significant rework on networking configuration

Change-Id: Icb3cbac66b33265486ac236572874052fc643b8a
diff --git a/roles/compute-node/tasks/vars.yml b/roles/compute-node/tasks/vars.yml
new file mode 100644
index 0000000..e0bba8b
--- /dev/null
+++ b/roles/compute-node/tasks/vars.yml
@@ -0,0 +1,19 @@
+pub_ssh_key: "{{ lookup('file', 'files/id_rsa.pub') }}"
+
+compute_node:
+    fabric_iface_match: "{{ fabric_iface_spec | default('i40e|mlx4_en') }}"
+    interfaces:
+        fabric: "{{ fabric_iface | default('fabric') }}"
+        management: "{{ management_iface | default('mgmtbr') }}"
+        external: "{{ external_iface | default(None) }}"
+        file: "{{ iface_file | default('/etc/network/interfaces') }}"
+    addresses:
+        fabric: "{{ fabric_ip | mandatory }}"
+        management: "{{ management_ip | default('dhcp') }}"
+        external: "{{ external_ip | default('manual') }}"
+    gateway:
+        external: "{{ external_gw | default(omit) }}"
+        management: "{{ management_gw | default(omit) }}"
+    broadcast:
+        external: "{{ external_bc | default(omit) }}"
+        management: "{{ management_bc | default(omit) }}"