#!/usr/bin/env bash
SSD=/sbin/start-stop-daemon
PIDFILE=/var/run/haproxy.pid
PROG=/usr/sbin/haproxy
OPTS="-f /etc/haproxy.conf"

start() { ${SSD} --start -b -m -p ${PIDFILE} -x ${PROG} -- ${OPTS}; }

stop() { ${SSD} --stop --remove-pidfile --retry 10 --pidfile "${PIDFILE}"; }

status() {
  ${SSD} --status --pidfile ${PIDFILE}
  case $? in
    0) printf 'running (pid %d)\n' "$(cat ${PIDFILE})" ;;
    1) printf 'stopped (stale pidfile found)\n' ;;
    3) printf 'stopped\n' ;;
    4) printf 'Unknown\n' ;;
  esac
}

case "${1}" in
  start)
    start
    ;;
  stop)
    stop
    ;;
  restart)
    stop && start
    ;;
  status)
    status
    ;;
  *)
    printf 'Action required (start, stop, restart, status)\n'
    ;;
esac