routing: enable ipv4 networking and bind ip's to ifaces

roles/routing/tasks/main.yml

@@ -0,0 +1,16 @@
+---
+
+- name: enable ipv4 forwarding
+  shell: echo 1 > /proc/sys/net/ipv4/ip_forward
+
+- name: ensure ipv4 forwarding is always enabled (enabled in permanent config)
+  lineinfile:
+    path: /etc/sysctl.conf
+    regexp: '^net\.ipv4\.ip_forward'
+    line: net.ipv4.ip_forward=1
+
+- name: bind ip addresses of each subnet to interface
+  shell: ip addr add {{ item.ip }}/{{ item.subnet }} dev {{ item.iface }}
+  with_items: "{{ subnets }}"
+
+