Use net as the dhcp server, remove central

roles/dhcp-server/tasks/main.yml

@@ -10,6 +10,18 @@
     - packages
     - dhcp-server
 
+- name: ensure we have our group
+  group: name=dnsmasq state=present system=yes
+  tags:
+    - group
+    - dhcp-server
+
+- name: ensure we have our user
+  user: name=dnsmasq system=yes group=dnsmasq state=present
+  tags:
+    - user
+    - dhcp-server
+
 - name: ensure we have our config
   template: src=dnsmasq.conf dest=/etc/dnsmasq.conf
   notify: