Rails アプリを rackup で起動する init スクリプトのようなもの

gistfile1.sh

#!/bin/sh

REDMINE_HOME="/usr/share/redmine"
RACK_CONFIG="$REDMINE_HOME/config.ru"
REDMINE_PID_FILE="$REDMINE_HOME/tmp/pids/redmine.pid"
PORT=80

start(){
  echo start ...
  PID=`pid`
  [ -n "$PID" ] && echo "already started" && return 1
  rackup -E production -D -P "$REDMINE_PID_FILE" "$RACK_CONFIG" -p "$PORT"
  if [ $? -eq 0 ]
  then
    echo done
  else
    echo false
    return 1
  fi
}

stop(){
  echo stop ...
  PID=`pid`
  if [ -n "$PID" ]
  then
    kill -2 $PID
    [ $? -eq 0 ] && echo done && return
  fi
  echo false
  return 1
}

restart(){
  stop && start
}

pid(){
  cat $REDMINE_PID_FILE 2>/dev/null
}

help(){
  echo "$0 [start|stop|restart|pid]"
}

if [ -n "$1" ]
then
  case $1 in
    start|stop|restart|pid ) $1;;
    * ) help ;;
  esac
else
  help
fi