Move dhcpd.conf preamble into a separate file.

netbox-dhcp.sh

@@ -6,19 +6,9 @@ do_curl() {
   curl -s -k -H "Authorization: Token ${TOKEN}" -X GET $1
 }
 
-cat<<EOF
-# generated by $0 at $(date)
-
-option domain-name "home.paler.net";
-max-lease-time 600;
-default-lease-time 600;
-
-subnet 192.168.1.0 netmask 255.255.255.0 {
-        option routers 192.168.1.1;
-        option domain-name-servers 192.168.1.1;
-        range 192.168.1.100 192.168.1.200;
-
-EOF
+echo "# generated by $0 at $(date)"
+echo
+cat dhcpd.conf.head
 
 do_curl "https://${NETBOX}/api/ipam/ip-addresses/" | \
 jq -r '.results[] | .assigned_object.device.name + .assigned_object.virtual_machine.name + " " + (.address / "/")[0] + " " + .assigned_object.url' |