lsb init script example

#!/bin/bash
#
### BEGIN INIT INFO
# Provides:          my-project
# Required-Start:    $remote_fs $syslog docker
# Required-Stop:     $remote_fs $syslog docker
# Should-Start:      $network $named $time
# Should-Stop:       $network $named $time
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: my-project
# Description:       my-project
### END INIT INFO
#

. /lib/lsb/init-functions

PROJECT_DIR=/home/USERNAME/my-project
PID_FILE=$PROJECT_DIR/pids/my-project.pid
DOCKER_BIN=/usr/bin/docker
NPM_BIN=/usr/local/bin/npm

case "${1:-''}" in
  'start')
    (cd "$PROJECT_DIR" && "$NPM_BIN" run start)
    exit $?
    ;;

  'stop')
    (cd "$PROJECT_DIR" && "$NPM_BIN" run stop)
    exit $?
    ;;

  'restart')
    "$0" stop
    retval=$?
    [ $retval -ne 0 ] && exit $retval
    "$0" start
    exit $?
    ;;

  'status')
    if [[ ! -f "$PID_FILE" ]]; then
      echo 'Container is not started' 1>&2
    else
      echo "Container PID: $(cat "$PID_FILE")"
      "$DOCKER_BIN" ps
    fi
    ;;

  *)
    echo "Usage: $SELF start|stop|restart|status"
    exit 1
    ;;
esac