Add a "nomads" group of hosts

Hosts that I want to run common config stuff like SSH, firewalls,
etc.

nomads.yml

@@ -0,0 +1,12 @@
+---
+# file: nomads.yml
+
+- hosts: nomads
+  become: yes
+  roles:
+    - common
+    - munin
+  vars_files:
+    - vars/ipsets.yml
+
+# vim: set sw=2 ts=2:

site.yml

@@ -1,6 +1,7 @@
 ---
 # file: site.yml
 
+- import_playbook: nomads.yml
 - import_playbook: web.yml
 
 # vim: set sw=2 ts=2: