Add docs + fix warning

ansible/README.md

@@ -6,6 +6,9 @@ For each machine, **one by one** do:
   - Check that cluster is healthy
     - `sudo gluster peer status`
     - `sudo gluster volume status all` (check Online Col, only `Y` must appear)
+    - Check that Nomad is healthy
+    - Check that Consul is healthy
+    - Check that Postgres is healthy
   - Run `ansible-playbook -i production --limit <machine> site.yml`
   - Reboot
   - Check that cluster is healthy

ansible/roles/network/tasks/main.yml

@@ -7,7 +7,7 @@
 - name: "Activate IP forwarding"
   sysctl:
     name: net.ipv4.ip_forward
-    value: 1
+    value: "1"
     sysctl_set: yes
 
 # These two lines are used to undo previous config, remove them once it is done