Clean up, specify eth0 as dhcp interface.

roles/dhcpd/tasks/main.yml

@@ -1,18 +1,14 @@
 ---
 
 - name: Install dhcp server
-  apt: name={{item}} state=latest
-  tags: dhcp
-  with_items:
-   - isc-dhcp-server
+  apt: name=isc-dhcp-server
 
 - name: Configure dhcp server
-  template: src={{item}}.j2 dest=/etc/{{item}}
-  tags: dhcp
-  notify: Restart isc-dhcp-server
+  template: src={{ item }}.j2 dest=/etc/{{ item }}
   with_items:
+   - default/isc-dhcp-server
    - dhcp/dhcpd.conf
+  notify: Restart isc-dhcp-server
 
 - name: Start the dhcp server
   service: name=isc-dhcp-server state=started enabled=yes
-  tags: dhcp

roles/dhcpd/templates/default/isc-dhcp-server

@@ -0,0 +1,17 @@
+#
+# This is a POSIX shell fragment
+#
+
+# Path to dhcpd's config file (default: /etc/dhcp/dhcpd.conf).
+#DHCPD_CONF=/etc/dhcp/dhcpd.conf
+
+# Path to dhcpd's PID file (default: /var/run/dhcpd.pid).
+#DHCPD_PID=/var/run/dhcpd.pid
+
+# Additional options to start dhcpd with.
+#	Don't use options -cf or -pf here; use DHCPD_CONF/ DHCPD_PID instead
+#OPTIONS=""
+
+# On what interfaces should the DHCP server (dhcpd) serve DHCP requests?
+#	Separate multiple interfaces with spaces, e.g. "eth0 eth1".
+INTERFACES="eth0"