Added emma play and updated roles for multi-server setup

roles/any.common.static-ip/handlers/main.yml

@@ -0,0 +1,5 @@
+---
+- name: restart networking
+  service:
+    name: networking
+    state: restarted

roles/any.common.static-ip/tasks/main.yml

@@ -0,0 +1,6 @@
+---
+- name: Install networking config file.
+  template:
+    src: interfaces.j2
+    dest: /etc/network/interfaces.d/{{ interface }}
+  notify: restart networking

roles/any.common.static-ip/templates/interfaces.j2

@@ -0,0 +1,7 @@
+auto {{ interface }}
+iface {{ interface }} inet static
+	address {{ static_ip }}
+	broadcast {{ broadcast_ip }}
+	netmask 255.255.255.0
+	gateway {{ router_ip }}
+	dns-nameservers {{ router_ip }} 8.8.8.8