pi-hole/advanced/pihole-FTL.service

#!/bin/bash
### BEGIN INIT INFO
# Provides:          pihole-FTL
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: pihole-FTL daemon
# Description:       Enable service provided by pihole-FTL daemon
### END INIT INFO

FTLUSER=pi
PIDFILE=/var/run/pihole-FTL.pid

get_pid() {
    cat "$PIDFILE"
}

is_running() {
    [ -f "$PIDFILE" ] && ps $(get_pid) > /dev/null 2>&1
}

# Start the service
start() {
  if is_running; then
    echo "pihole-FTL is already running"
  else
    touch /var/log/pihole-FTL.log /run/pihole-FTL.pid /run/pihole-FTL.port
    chmod 0644 /var/log/pihole-FTL.log /run/pihole-FTL.pid /run/pihole-FTL.port
    su -c "/usr/bin/pihole-FTL" "$FTLUSER"
    echo
  fi
}

# Stop the service
stop() {
  if is_running; then
    kill $(get_pid)
    for i in {1..10}; do
      if ! is_running; then
        break
      fi

      echo -n "."
      sleep 1
    done
    echo

    if is_running; then
      echo "Not stopped; may still be shutting down or shutdown may have failed"
      exit 1
    else
      echo "Stopped"
    fi
  else
    echo "Not running"
  fi
  echo
}

### main logic ###
case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  status)
        status pihole-FTL
        ;;
  restart|reload|condrestart)
        stop
        start
        ;;
  *)
        echo $"Usage: $0 {start|stop|restart|reload|status}"
        exit 1
esac

exit 0