exit: add DHCP relay for new server

Really quite shoddy as it is right now. Should get better once the old
server is retired.

roles/exit/files/keepalive-service

@@ -1,18 +0,0 @@
-#!/bin/sh
-
-class="${1}"
-name="${2}"
-state="${3}"
-
-case "${state}" in
-"MASTER" | "FAULT")
-	systemctl start "${name}"
-	;;
-"BACKUP" | "STOP")
-	systemctl stop "${name}"
-	;;
-*)
-        logger "keepalived unknown state for ${name}: ${state}"
-        exit 1
-	;;
-esac